OpenLayers map + markers + cool info box

I made a little project for my father (in return he pays for my piano lessons).
My father is one of the managers of the folk dance society in Israel. They have a website, where all dancing clubs are listed, including relevant information such as place, time, price, type of music, ...
He wanted a map where someone could see all dancing places near his/her home.
Google Maps would have been a natural choice hadn't they forbidden access to their API specifically for Israel.
I found a great alternative: OpenLayes, which uses data from OpenStreetMap.
I'm all excited because I know nothing about JavaScript and CSS but eventually it worked!
Well, here it is:


Things to notice:

• The info box is half transparent
• It has round corners
• When you click a place, the info box sticks, so you can follow the links

C#: How to bypass firewall

Firewalls like ZoneAlarm are supposed to be able to block outgoing connections of unknown programs. So for example, if I was careless and installed a malware, then at least it won't be able to send my passwords list to someone over the internet.
Couple of years ago I tried to think about how to bypass that, and after a while I came up with this simple trick that works regardless of the firewall software, i.e. it does not alter the firewall.

Many users use Internet Explorer, so usually it has access through the firewall by default. It only remains to take control over it from C#, and that's exactly what I did using this magical API function: ObjectFromLresult. It might be funny to see a trojan horse written entirely using GET requests, but on the other hand it scares me a little bit because for example ZoneAlarm and AVG couldn't detect it.
I wrote a small C# application to prove my point. You can download it from here:
http://www.megaupload.com/?d=9W17LLP4
It has 2 buttons: the first button attempts to make a normal HttpWebRequest, and tells you whether it succeeded or failed. If it failed, then probably your firewall is blocking the application. In that case you may want to try the second button.

This is the code that creates a new Internet Explorer instance and gets the DOM object from it:
(I found it on the internet)

Code:

[DllImport("user32.dll", EntryPoint = "GetClassNameA")]
public static extern int GetClassName(IntPtr hwnd, StringBuilder lpClassName, int nMaxCount);
public delegate int EnumProc(IntPtr hWnd, ref IntPtr lParam);
[DllImport("user32.dll")]
public static extern int EnumChildWindows(IntPtr hWndParent, EnumProc lpEnumFunc, ref  IntPtr lParam);
[DllImport("user32.dll", EntryPoint = "RegisterWindowMessageA")]
public static extern int RegisterWindowMessage(string lpString);
[DllImport("user32.dll", EntryPoint = "SendMessageTimeoutA")]
public static extern int SendMessageTimeout(IntPtr hwnd, int msg, int wParam, int lParam, int fuFlags, int uTimeout, out int lpdwResult);
[DllImport("OLEACC.dll")]
public static extern int ObjectFromLresult(int lResult, ref Guid riid, int wParam, ref IHTMLDocument2 ppvObject);
public const int SMTO_ABORTIFHUNG = 0x2;
public Guid IID_IHTMLDocument = typeof(mshtml.IHTMLDocument).GUID;

public Process process = null;
public IHTMLDocument2 document;

public IHTMLDocument2 documentFromDOM(string url)
{
    process = new Process();
    process.StartInfo.FileName = "iexplore.exe";
    process.StartInfo.WindowStyle = ProcessWindowStyle.Minimized;
    process.StartInfo.Arguments = url;
    process.Start();
    IntPtr hWnd = IntPtr.Zero;
    do
    {
        Thread.Sleep(3000);
    } while ((hWnd = process.MainWindowHandle) == IntPtr.Zero);
    int lngMsg = 0;
    int lRes;
    IntPtr document_hWnd;
    EnumProc proc = new EnumProc(EnumWindows);
    EnumChildWindows(hWnd, proc, ref hWnd);
    if (!hWnd.Equals(IntPtr.Zero))
    {
        lngMsg = RegisterWindowMessage("WM_HTML_GETOBJECT");
        if (lngMsg != 0)
        {
            SendMessageTimeout(hWnd, lngMsg, 0, 0, SMTO_ABORTIFHUNG, 1000, out lRes);
            if (!(bool)(lRes == 0))
            {
                document_hWnd = hWnd;
                int hr = ObjectFromLresult(lRes, ref IID_IHTMLDocument, 0, ref document);
                if (document == null)
                {
                    MessageBox.Show("No IHTMLDocument Found!");
                }
            }
        }
    }
    return document;
}

public int EnumWindows(IntPtr hWnd, ref IntPtr lParam)
{
    int retVal = 1;
    StringBuilder classname = new StringBuilder(128);
    GetClassName(hWnd, classname, classname.Capacity);
    if (classname.ToString() == "Internet Explorer_Server")
    {
        lParam = hWnd;
        retVal = 0;
    }
    return retVal;
}

Notes:
The user can see the Internet Explorer at the taskbar, and the Thread.Sleep is weird, but both can be fixed sometime.

C#: Camera Matrix

I always wanted to know how a 3D engine works. I've used DirectX several times before, but I never quite understood what's going on behind the scene.
So, I decided to write a small naive 3D engine of my own, just to understand how it works.
I studied about the subject, and wrote this engine, which is basically a camera matrix: (no textures or anything)
http://www.megaupload.com/?d=6YON627Z
The only external graphics function I used is the Graphics.DrawLine() function.

What is a Camera Matrix anyway?
It's something that can be used to display 3D objects on our 2D screen.
Think about a real camera like in a 2D movie (not Avatar) - you place it somewhere in the room (translation), it looks towards the scene (rotation), it can zoom in and out (scaling), and it converts the 3D scene to 2D (projection).
From now on we say "translation" instead of "position". Mathematicians are to blame for that.

It's easy to do operations on vectors, why complicate things with Matrices?
One of the main reasons is that matrices can be easily concatenated.
From DirectX MSDN:

One advantage of using matrices is that you can combine the effects of two or more matrices by multiplying them. This means that, to rotate a model and then translate it to some location, you do not need to apply two matrices. Instead, you multiply the rotation and translation matrices to produce a composite matrix that contains all of their effects.

Let me put it this way:
"Using" a 4x4 matrix requires 16 multiplications and 9 additions.
So rotating, which is "using" a rotation matrix, requires 16 multiplications and 9 additions.
And scaling also requires 16 multiplications and 9 additions.
If we do rotating and then scaling it would take 32 multiplications and 18 additions. Translation would takes us up to 48 multiplications and 27 additions, and so on...
BUT, if we concatenate the rotation and scaling matrices, we will get a third matrix that does both operations in half the time (16 multiplications and 9 additions).
In fact, we could concatenate any number of matrices, so the resulting matrix will do all the operations we want in only 16 multiplications and 9 additions.
You might have noticed that we still need to do the concatenation operation which takes a long time, but it's worth it when you design a 3D game with thousands and thousands of objects to scale rotate translate etc. but only a few matrices to concatenate.

Why a Camera Matrix is not 3x3?
In short, because then we can't use it for translation (moving the vectors).
For more details read this fantastic article:
http://www.geometer.org/mathcircles/cghomogen.pdf

C#: Matrix and Vector Representation

In C# there are built in representations of 2D points and 2x2 matrices.
This is good enough for image processing, but I needed more than that for 3D graphics.

I wrote classes for:

• 3D vector
• 3x3 matrix
• 4x4 matrix
• Any size matrix

All the first three objects can be represented by "Any size matrix", but it is much more efficient to use the specific class you need.

Code:

class Vector3
{
    public static Vector3 Zero = NewZero();
    public static Vector3 One = NewOne();

    public float x;
    public float y;
    public float z;

    public Vector3()
    {
        x = 0.0f;
        y = 0.0f;
        z = 0.0f;
    }

    public Vector3(float x, float y, float z)
    {
        this.x = x;
        this.y = y;
        this.z = z;
    }

    public Vector3(float xyz)
    {
        this.x = xyz;
        this.y = xyz;
        this.z = xyz;
    }

    public Vector3(Vector3 v)
    {
        this.x = v.x;
        this.y = v.y;
        this.z = v.z;
    }

    public static Vector3 NewZero()
    {
        return new Vector3(0.0f);
    }

    public static Vector3 NewOne()
    {
        return new Vector3(1.0f);
    }

    public float DotProduct(Vector3 other)
    {
        return x * other.x + y * other.y + z * other.z;
    }

    public static Vector3 operator +(Vector3 v1, Vector3 v2)
    {
        return new Vector3(v1.x + v2.x, v1.y + v2.y, v1.z + v2.z);
    }

    public static Vector3 operator -(Vector3 v1, Vector3 v2)
    {
        return new Vector3(v1.x - v2.x, v1.y - v2.y, v1.z - v2.z);
    }

    public static Vector3 operator -(Vector3 v)
    {
        return new Vector3(-v.x, -v.y, -v.z);
    }

    public static Vector3 operator *(Vector3 v, float scalar)
    {
        return new Vector3(v.x * scalar, v.y * scalar, v.z * scalar);
    }

    public static Vector3 operator /(Vector3 v, float scalar)
    {
        return new Vector3(v.x / scalar, v.y / scalar, v.z / scalar);
    }

    public static bool operator ==(Vector3 v1, Vector3 v2)
    {
        return v1.x == v2.x && v1.y == v2.y && v1.z == v2.z;
    }

    public static bool operator !=(Vector3 v1, Vector3 v2)
    {
        return v1.x != v2.x || v1.y != v2.y || v1.z != v2.z;
    }

    public static Vector3 CrossProduct(Vector3 a, Vector3 b)
    {
        return new Vector3(a.y * b.z - a.z * b.y, a.z * b.x - a.x * b.z, a.x * b.y - a.y * b.x);
    }

    public Vector3 Add(Vector3 v)
    {
        x += v.x;
        y += v.y;
        z += v.z;
        return this;
    }

    public float DistanceTo(Vector3 v)
    {
        float dx = this.x - v.x;
        float dy = this.y - v.y;
        float dz = this.z - v.z;
        return (float)Math.Sqrt(dx * dx + dy * dy + dz * dz);
    }

    public float Size()
    {
        return DistanceTo(Vector3.Zero);
    }

    public Vector3 Normalize()
    {
        float size = Size();
        this.x /= size;
        this.y /= size;
        this.z /= size;
        return this;
    }

    public Vector3 Clone()
    {
        return new Vector3(this);
    }

    public override string ToString()
    {
        return "(" + x + ", " + y + ", " + z + ")";
    }
}

class Matrix
{
    public float[,] matrix;
    public int rows;
    public int cols;

    public Matrix(int rows, int cols)
    {
        this.matrix = new float[rows, cols];
        this.rows = rows;
        this.cols = cols;
    }

    public Matrix(float[,] matrix)
    {
        this.matrix = matrix;
        this.rows = matrix.GetLength(0);
        this.cols = matrix.GetLength(1);
    }

    protected static float[,] Multiply(Matrix matrix, float scalar)
    {
        int rows = matrix.rows;
        int cols = matrix.cols;
        float[,] m1 = matrix.matrix;
        float[,] m2 = new float[rows, cols];
        for (int i = 0; i < rows; ++i)
        {
            for (int j = 0; j < cols; ++j)
            {
                m2[i, j] = m1[i, j] * scalar;
            }
        }
        return m2;
    }

    protected static float[,] Multiply(Matrix matrix1, Matrix matrix2)
    {
        int m1rows = matrix1.rows;
        int m1cols = matrix1.cols;
        int m2rows = matrix2.rows;
        int m2cols = matrix2.cols;
        if (m1cols != m2rows)
        {
            throw new ArgumentException();
        }
        float[,] m1 = matrix1.matrix;
        float[,] m2 = matrix2.matrix;
        float[,] m3 = new float[m1rows, m2cols];
        for (int i = 0; i < m1rows; ++i)
        {
            for (int j = 0; j < m2cols; ++j)
            {
                float sum = 0;
                for (int it = 0; it < m1cols; ++it)
                {
                    sum += m1[i, it] * m2[it, j];
                }
                m3[i, j] = sum;
            }
        }
        return m3;
    }

    public static Matrix operator *(Matrix m, float scalar)
    {
        return new Matrix(Multiply(m, scalar));
    }

    public static Matrix operator *(Matrix m1, Matrix m2)
    {
        return new Matrix(Multiply(m1, m2));
    }

    public override string ToString()
    {
        string res = "";
        for (int i = 0; i < rows; ++i)
        {
            if (i > 0)
            {
                res += "|";
            }
            for (int j = 0; j < cols; ++j)
            {
                if (j > 0)
                {
                    res += ",";
                }
                res += matrix[i, j];
            }
        }
        return "(" + res + ")";
    }
}

class Matrix3 : Matrix
{
    public Matrix3()
        : base(3, 3)
    {
    }

    public Matrix3(float[,] matrix)
        : base(matrix)
    {
        if (rows != 3 || cols != 3)
        {
            throw new ArgumentException();
        }
    }

    public static Matrix3 I()
    {
        return new Matrix3(new float[,] { 
        { 1.0f, 0.0f, 0.0f }, 
        { 0.0f, 1.0f, 0.0f }, 
        { 0.0f, 0.0f, 1.0f } });
    }

    public static Vector3 operator *(Matrix3 matrix3, Vector3 v)
    {
        float[,] m = matrix3.matrix;
        return new Vector3(
            m[0, 0] * v.x + m[0, 1] * v.y + m[0, 2] * v.z,
            m[1, 0] * v.x + m[1, 1] * v.y + m[1, 2] * v.z,
            m[2, 0] * v.x + m[2, 1] * v.y + m[2, 2] * v.z);
    }

    public static Matrix3 operator *(Matrix3 mat1, Matrix3 mat2)
    {
        float[,] m1 = mat1.matrix;
        float[,] m2 = mat2.matrix;
        float[,] m3 = new float[3, 3];
        m3[0, 0] = m1[0, 0] * m2[0, 0] + m1[0, 1] * m2[1, 0] + m1[0, 2] * m2[2, 0];
        m3[0, 1] = m1[0, 0] * m2[0, 1] + m1[0, 1] * m2[1, 1] + m1[0, 2] * m2[2, 1];
        m3[0, 2] = m1[0, 0] * m2[0, 2] + m1[0, 1] * m2[1, 2] + m1[0, 2] * m2[2, 2];
        m3[1, 0] = m1[1, 0] * m2[0, 0] + m1[1, 1] * m2[1, 0] + m1[1, 2] * m2[2, 0];
        m3[1, 1] = m1[1, 0] * m2[0, 1] + m1[1, 1] * m2[1, 1] + m1[1, 2] * m2[2, 1];
        m3[1, 2] = m1[1, 0] * m2[0, 2] + m1[1, 1] * m2[1, 2] + m1[1, 2] * m2[2, 2];
        m3[2, 0] = m1[2, 0] * m2[0, 0] + m1[2, 1] * m2[1, 0] + m1[2, 2] * m2[2, 0];
        m3[2, 1] = m1[2, 0] * m2[0, 1] + m1[2, 1] * m2[1, 1] + m1[2, 2] * m2[2, 1];
        m3[2, 2] = m1[2, 0] * m2[0, 2] + m1[2, 1] * m2[1, 2] + m1[2, 2] * m2[2, 2];
        return new Matrix3(m3);
    }

    public static Matrix3 operator *(Matrix3 m, float scalar)
    {
        return new Matrix3(Multiply(m, scalar));
    }
}

class Matrix4 : Matrix
{
    public static Matrix4 I = NewI();

    public Matrix4()
        : base(4, 4)
    {
    }

    public Matrix4(float[,] matrix)
        : base(matrix)
    {
        if (rows != 4 || cols != 4)
        {
            throw new ArgumentException();
        }
    }

    public static Matrix4 NewI()
    {
        return new Matrix4(new float[,] { 
        { 1.0f, 0.0f, 0.0f, 0.0f }, 
        { 0.0f, 1.0f, 0.0f, 0.0f }, 
        { 0.0f, 0.0f, 1.0f, 0.0f },
        { 0.0f, 0.0f, 0.0f, 1.0f } });
    }

    public static Vector3 operator *(Matrix4 matrix4, Vector3 v)
    {
        float[,] m = matrix4.matrix;
        float w = m[3, 0] * v.x + m[3, 1] * v.y + m[3, 2] * v.z + m[3, 3];
        return new Vector3(
            (m[0, 0] * v.x + m[0, 1] * v.y + m[0, 2] * v.z + m[0, 3]) / w,
            (m[1, 0] * v.x + m[1, 1] * v.y + m[1, 2] * v.z + m[1, 3]) / w,
            (m[2, 0] * v.x + m[2, 1] * v.y + m[2, 2] * v.z + m[2, 3]) / w
            );
    }

    public static Matrix4 operator *(Matrix4 mat1, Matrix4 mat2)
    {
        float[,] m1 = mat1.matrix;
        float[,] m2 = mat2.matrix;
        float[,] m3 = new float[4, 4];
        m3[0, 0] = m1[0, 0] * m2[0, 0] + m1[0, 1] * m2[1, 0] + m1[0, 2] * m2[2, 0] + m1[0, 3] * m2[3, 0];
        m3[0, 1] = m1[0, 0] * m2[0, 1] + m1[0, 1] * m2[1, 1] + m1[0, 2] * m2[2, 1] + m1[0, 3] * m2[3, 1];
        m3[0, 2] = m1[0, 0] * m2[0, 2] + m1[0, 1] * m2[1, 2] + m1[0, 2] * m2[2, 2] + m1[0, 3] * m2[3, 2];
        m3[0, 3] = m1[0, 0] * m2[0, 3] + m1[0, 1] * m2[1, 3] + m1[0, 2] * m2[2, 3] + m1[0, 3] * m2[3, 3];
        m3[1, 0] = m1[1, 0] * m2[0, 0] + m1[1, 1] * m2[1, 0] + m1[1, 2] * m2[2, 0] + m1[1, 3] * m2[3, 0];
        m3[1, 1] = m1[1, 0] * m2[0, 1] + m1[1, 1] * m2[1, 1] + m1[1, 2] * m2[2, 1] + m1[1, 3] * m2[3, 1];
        m3[1, 2] = m1[1, 0] * m2[0, 2] + m1[1, 1] * m2[1, 2] + m1[1, 2] * m2[2, 2] + m1[1, 3] * m2[3, 2];
        m3[1, 3] = m1[1, 0] * m2[0, 3] + m1[1, 1] * m2[1, 3] + m1[1, 2] * m2[2, 3] + m1[1, 3] * m2[3, 3];
        m3[2, 0] = m1[2, 0] * m2[0, 0] + m1[2, 1] * m2[1, 0] + m1[2, 2] * m2[2, 0] + m1[2, 3] * m2[3, 0];
        m3[2, 1] = m1[2, 0] * m2[0, 1] + m1[2, 1] * m2[1, 1] + m1[2, 2] * m2[2, 1] + m1[2, 3] * m2[3, 1];
        m3[2, 2] = m1[2, 0] * m2[0, 2] + m1[2, 1] * m2[1, 2] + m1[2, 2] * m2[2, 2] + m1[2, 3] * m2[3, 2];
        m3[2, 3] = m1[2, 0] * m2[0, 3] + m1[2, 1] * m2[1, 3] + m1[2, 2] * m2[2, 3] + m1[2, 3] * m2[3, 3];
        m3[3, 0] = m1[3, 0] * m2[0, 0] + m1[3, 1] * m2[1, 0] + m1[3, 2] * m2[2, 0] + m1[3, 3] * m2[3, 0];
        m3[3, 1] = m1[3, 0] * m2[0, 1] + m1[3, 1] * m2[1, 1] + m1[3, 2] * m2[2, 1] + m1[3, 3] * m2[3, 1];
        m3[3, 2] = m1[3, 0] * m2[0, 2] + m1[3, 1] * m2[1, 2] + m1[3, 2] * m2[2, 2] + m1[3, 3] * m2[3, 2];
        m3[3, 3] = m1[3, 0] * m2[0, 3] + m1[3, 1] * m2[1, 3] + m1[3, 2] * m2[2, 3] + m1[3, 3] * m2[3, 3];
        return new Matrix4(m3);
    }

    public static Matrix4 operator *(Matrix4 m, float scalar)
    {
        return new Matrix4(Multiply(m, scalar));
    }
}

C#: Rotation Matrix

Rotation matrices are used in 3D graphics to rotate vectors.
I use homogeneous coordinates, so the matrices are 4x4. If you want 3x3, just remove the last column and last row.
I wrote several functions:

• Rotation around X axis
• Rotation around Y axis
• Rotation around Z axis
• Rotation around all axes
• Rotation around any given axis
• Rotation from normal vector to normal vector

Apparently the 5th function is enough, because for example "Rotation around X axis" can be replace by rotation around (1,0,0), and "Rotation around all axes" is merely the product of 3 matrices. BUT, one should use the specific function he or she needs, because it is more efficient.
For matrix operations you can use this post.

Code:

public static Matrix4 GetRotationMatrixX(double angle)
{
    if (angle == 0.0)
    {
        return Matrix4.I;
    }
    float sin = (float)Math.Sin(angle);
    float cos = (float)Math.Cos(angle);
    return new Matrix4(new float[4, 4] {
        { 1.0f, 0.0f, 0.0f, 0.0f }, 
        { 0.0f, cos, -sin, 0.0f }, 
        { 0.0f, sin, cos, 0.0f }, 
        { 0.0f, 0.0f, 0.0f, 1.0f } });
}

public static Matrix4 GetRotationMatrixY(double angle)
{
    if (angle == 0.0)
    {
        return Matrix4.I;
    }
    float sin = (float)Math.Sin(angle);
    float cos = (float)Math.Cos(angle);
    return new Matrix4(new float[4, 4] {
        { cos, 0.0f, sin, 0.0f }, 
        { 0.0f, 1.0f, 0.0f, 0.0f }, 
        { -sin, 0.0f, cos, 0.0f }, 
        { 0.0f, 0.0f, 0.0f, 1.0f } });
}

public static Matrix4 GetRotationMatrixZ(double angle)
{
    if (angle == 0.0)
    {
        return Matrix4.I;
    }
    float sin = (float)Math.Sin(angle);
    float cos = (float)Math.Cos(angle);
    return new Matrix4(new float[4, 4] {
        { cos, -sin, 0.0f, 0.0f }, 
        { sin, cos, 0.0f, 0.0f }, 
        { 0.0f, 0.0f, 1.0f, 0.0f }, 
        { 0.0f, 0.0f, 0.0f, 1.0f } });
}

public static Matrix4 GetRotationMatrix(double ax, double ay, double az)
{
    Matrix4 my = null;
    Matrix4 mz = null;
    Matrix4 result = null;
    if (ax != 0.0)
    {
        result = GetRotationMatrixX(ax);
    }
    if (ay != 0.0)
    {
        my = GetRotationMatrixY(ay);
    }
    if (az != 0.0)
    {
        mz = GetRotationMatrixZ(az);
    }
    if (my != null)
    {
        if (result != null)
        {
            result *= my;
        }
        else
        {
            result = my;
        }
    }
    if (mz != null)
    {
        if (result != null)
        {
            result *= mz;
        }
        else
        {
            result = mz;
        }
    }
    if (result != null)
    {
        return result;
    }
    else
    {
        return Matrix4.I;
    }
}

public static Matrix4 GetRotationMatrix(Vector3 axis, double angle)
{
    if (angle == 0.0)
    {
        return Matrix4.I;
    }

    float x = axis.x;
    float y = axis.y;
    float z = axis.z;
    float sin = (float)Math.Sin(angle);
    float cos = (float)Math.Cos(angle);
    float xx = x * x;
    float yy = y * y;
    float zz = z * z;
    float xy = x * y;
    float xz = x * z;
    float yz = y * z;

    float[,] matrix = new float[4, 4];

    matrix[0, 0] = xx + (1 - xx) * cos;
    matrix[1, 0] = xy * (1 - cos) + z * sin;
    matrix[2, 0] = xz * (1 - cos) - y * sin;
    matrix[3, 0] = 0.0f;

    matrix[0, 1] = xy * (1 - cos) - z * sin;
    matrix[1, 1] = yy + (1 - yy) * cos;
    matrix[2, 1] = yz * (1 - cos) + x * sin;
    matrix[3, 1] = 0.0f;

    matrix[0, 2] = xz * (1 - cos) + y * sin;
    matrix[1, 2] = yz * (1 - cos) - x * sin;
    matrix[2, 2] = zz + (1 - zz) * cos;
    matrix[3, 2] = 0.0f;

    matrix[3, 0] = 0.0f;
    matrix[3, 1] = 0.0f;
    matrix[3, 2] = 0.0f;
    matrix[3, 3] = 1.0f;

    return new Matrix4(matrix);
}

/// <param name="source">Should be normalized</param>
/// <param name="destination">Should be normalized</param>
public static Matrix4 GetRotationMatrix(Vector3 source, Vector3 destination)
{
    Vector3 rotaxis = Vector3.CrossProduct(source, destination);
    if (rotaxis != Vector3.Zero)
    {
        rotaxis.Normalize();
        float cos = source.DotProduct(destination);
        double angle = Math.Acos(cos);
        return GetRotationMatrix(rotaxis, angle);
    }
    else
    {
        return Matrix4.I;
    }
}

How to connect to a remote computer with a click (VNC Step By Step)

What:

Why:
A few years ago I sent some files to a client by email, and I spent 3 hours over the phone trying to explain to him how to copy those files to C:\Program Files. Eventually I gave up. It would be faster for me to drive all the way to his office, do it myself, and return all the way. That's exactly what I did, but I also installed a secured VNC server so next time I won't have to drive.
After that I began to install a VNC server everywhere - my grandma who always asks for help, the media center in the living room, a virtual machine, my remote server, ...
I use it very often so it must be comfortable to use.

How:
There are a few things to do: installation, opening ports, configuring dns, creating vnc file

1. Download VNC
You can get the free edition from here: http://www.realvnc.com
Please note that this version has no encryption (it has a password though), so if security is really important you should get the full version.

2. Install
Install the VNC Viewer on your computer, and the VNC Server on the remote computer.
In the end of the Server installation, set a password:

3. Open port 5900 on the Server side
Most people have routers that block incoming connections. You need to open port 5900 on the Server side (TCP if you were wondering).
First, let's be smart and check whether it's already opened: http://www.yougetsignal.com/tools/open-ports/
If the port is blocked, you may need to access your router and open it. This site has detailed explanation for doing this for every router in the world: http://portforward.com/
Note: If you are not allowed or can't open ports on the Server side then you can use the "Listening mode" viewer, but then the rest of this post doesn't help you.


4. Test it
On the Server side find the IP address: http://www.whatismyip.com/
On the Client side open VNC Viewer, enter the Server's IP address, and click OK:

You will be asked for a password. You should enter the password from Step 2 above.
If everything went OK you should now see the Server's desktop inside a window on the Client side. If you get an error message, try googling it.

5. Create DNS
Why? Because usually the Server's IP address can change. If it's static you can skip to Step 8.
Go to: http://www.dyndns.com/ and create a new account.
Add a new host; don't mind the IP for now:

6. Update DNS
Download and install DynDNS Updater on the Server side.
During the installation I advise on DISABLING "Internet Guide":

You will be asked for your account's username and password. Then select the host you added earlier and click OK:

Note: Some routers have this feature built in. I know some of the D-Links have it for example. Use can use it instead of the DynDNS Updater, but you should do it only if you know what you are doing. Example of this feature on my D-Link router:

7. Test it
On the Client side open VNC Viewer, enter the host address, and click OK:

Again, if you are asked for the password, enter it (the one from Step 2). You should get a window with the Server's desktop. Don't close it, we need it for the next step.

8. Save Connection
If you didn't connect to the Server do it now. Right-click the top of the window and click on "options":

In the new window click the "Load / Save" tab and then "Save As...":

Choose a location (e.g. your Desktop) and a name (e.g. "My Remote Server") and save it. You will probably get the following screen:

It's your choice whether to click Yes or No.
If you click No you will have to type in the password each time you want to connect.
If you click Yes, then everything is automatic (no need to type password). Well, the message is pretty accurate: "it's more convenient, but...".
Explanation: If you click yes you will have automatic access to the remote computer. So if someone gains access to your computer, then he will have access to the remote computer as well.
My advice is to click Yes for your Media Center, local server or grandma, but to click No for business computer or something important.

9. That's it!
Go to the location of the file you saved earlier and open it:

PRE Tag Internet Explorer Scrollbar Solution

<pre> tag is very useful for writing code. I use it all the time actually for posting C# code.
There is however a problem with Internet Explorer:
If the text is too long, and a horizontal scroll bar appears, it overlaps the bottom line.
You can find many solutions to this problem in this link, including scanning the document with JavaScript fixing all the pre tags.
My solution is a lot simpler.

Solution:
If you know that the text is too long and a horizontal scroll bar will appear, then add the following code at the bottom, just before the </pre> ending tag:

<!--[if IE]>

<![endif]-->

Explanation:
If the user is using Internet Explorer, then there will be an extra (empty) line inside the pre tag, and the horizontal scroll bar will overlap the empty line and not the original content.

איך יוצרים קישור למקום מסוים במפה של גוגל, ynet ווואלה

אתם רוצים לשלוח לכל החברים קישור למקום מסויים שבו צריך להיפגש. אפשר לשלוח תמונה של המפה (Print Screen), ואפשר לשלוח להם לינק למפה אינטרקטיבית, ובה מסומן מקום המפגש, כך שהם יוכלו להוציא איזה מידע שהם צריכים ביותר קלות (למשל מגרשי חנייה).
דוגמה: אוהל המחאה של משפחת שליט


הכי נוח. מחפשים את המקום ואז יש כפתור "קישור" בצד שמאל.


שיטה 1 קלה:
הכניסו נתונים ולחצו על "צור קישור":

עיר: רחוב: מספר:

שיטה 2: נכנסים לאתר המפות של ynet, מחפשים את המקום שרוצים, ואז לוחצים על "הדפס" (למטה), בדף החדש מבטלים את ההדפסה, ומסתכלים על הכתובת:
http://ymap.winwin.co.il/...&Mode=1&forprint=y&displayMode=SMALLMAP
מורידים את החלק שסימנתי באדום, ומה שנשאר זה הלינק שלכם.

מפות
הכניסו נתונים ולחצו על "צור קישור":

עיר: רחוב: מספר:

איך לעקוף את ההודעה: "בחירת כסאות לא מאושרת, אין להשאיר כסא בודד" בסינמה סיטי

This post is intended for people from Israel.

הערה חשובה: הפוסט הזה נועד כדי להראות בעיה שבנסיבות אחרות יכולה להיות בעיית אבטחה, ולא כדי להפציץ את סינמה סיטי בכיסאות בודדים!

בעיה: אתם רוצים להזמין 4 מקומות לסרט בסינמה סיטי ויש 5 פנויים. אתם בוחרים ב-4 שקרובים לאמצע ואז מקבלים את ההודעה:

פתרון 1: נכנסים במחשב אחר, בוחרים את הכיסא שלא רוצים, לוחצים על "הבא", והמערכת שומרת לכם אותו למשך 6 דקות. ואז במחשב שלכם אתם יכולים להזמין את ה-4 שאתם כן רוצים.

עד עכשיו זה היה החלק היותר מוכר.

וזה אמור לפתור את רוב הבעיות.

אבל מה קורה אם הזמנתם את הכרטיסים שלכם בלי בעיה (למשל 4 מתוך 6), אבל אתם מפוזרים כמוני ושכחתם מישהו בטעות, ועכשיו אתם צריכים להזמין מקום 1 מתוך 2? מהירי המחשבה ישימו לב שלא ניתן להשתמש בשיטה הקודמת.

פתרון 2: נכנסים במחשב שלכם בוחרים את 2 הכיסאות ולוחצים על "הבא"; המערכת שומרת אותם ל-6 דקות. נכנסים במחשב אחר לאותו סרט באותו יום באותה שעה איפה שרואים ש-2 הכיסאות תפוסים, ולא עושים כלום. חוזרים למחשב שלכם, לוחצים על "הקודם", בוחרים את הכיסא שאתם רוצים ומזמינים אותו.

כמובן שזה עובד על כל מספר של כיסאות ולכן יותר חזק מפתרון 1.

אז מה קרה פה?

ההשערה שלי: כנראה שהמערכת של סינמה סיטי שומרת סוג של מטמון ברגע שנכנסים מהמחשב השני, וכאשר חוזרים למחשב שלכם ומזמינים כיסא אחד במקום 2 המערכת משתמשת באותו מטמון שבו עדיין שמורים 2 הכיסאות, ולכן אין כיסא בודד.

הערות:

במקום להשתמש בשני מחשבים, ניתן להשתמש בשני דפדפנים, או בכל דרך שבה מפרידים את הסשן.

שני הפתרונות עובדים נכון ל-12 ביולי 2010.

C# Sort Text and Numbers (like Explorer does)

For example:

myvideo.part2.rar

Should come before:

myvideo.part10.rar

// Usage:

list.Sort(new StringLogicalComparer());


// Comparer:

public class StringLogicalComparer : IComparer, IComparer<string>
{
    [DllImport("shlwapi.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]
    public static extern int StrCmpLogicalW(string x, string y);

    public int Compare(object x, object y)
    {
        return StrCmpLogicalW(x.ToString(), y.ToString());
    }

    public int Compare(string x, string y)
    {
        return StrCmpLogicalW(x, y);
    }
}

WebBrowser and HttpWebRequest Cookies Problem and Solution

If you are working with WebBrowser control and you want to make some WebRequest you need to synchronize the cookies.
And that would be the naive way to do it:

httpWebRequest.CookieContainer.SetCookies(
    webBrowser.Document.Url, 
    webBrowser.Document.Cookie.Replace(';', ',')
    ); // THIS CODE IS WRONG!!

The problem is the HttpOnly cookies that are missing from Document.Cookie for security reasons.
The HttpOnly cookies are probably the most important ones that you need.
This article explains how to get them:
http://www.codeproject.com/KB/shell/RetrieveHttponlyCookies.aspx

Here is a more compact version of the function for C#:

[DllImport("wininet.dll", CharSet = CharSet.Auto, SetLastError = true)]
static extern bool InternetGetCookieEx(string pchURL, string pchCookieName, StringBuilder pchCookieData, ref uint pcchCookieData, int dwFlags, IntPtr lpReserved);
const int INTERNET_COOKIE_HTTPONLY = 0x00002000;

public static string GetGlobalCookies(string uri)
{
    uint datasize = 1024;
    StringBuilder cookieData = new StringBuilder((int)datasize);
    if (InternetGetCookieEx(uri, null, cookieData, ref datasize, INTERNET_COOKIE_HTTPONLY, IntPtr.Zero)
        && cookieData.Length > 0)
    {
        return cookieData.ToString().Replace(';', ',');
    }
    else
    {
        return null;
    }
}

And the usage would be:

httpWebRequest.CookieContainer.SetCookies(
    webBrowser.Document.Url, 
    GetGlobalCookies(webBrowser.Document.Url.AbsoluteUri)
    );

Blogger C# API

Source: http://google-gdata.googlecode.com/svn/trunk/clients/cs/samples/blogger/ConsoleSample.cs

using System;
using System.Text;
using Google.GData.Client;
using System.Net;
using System.Xml;
using System.Text.RegularExpressions;

namespace BloggerDevSample
{
    class ConsoleSample
    {
        /** Lists the user's blogs. */
        static void ListUserBlogs(Service service)
        {
            Console.WriteLine("\nRetrieving a list of blogs");
            FeedQuery query = new FeedQuery();
            // Retrieving a list of blogs
            query.Uri = new Uri("http://www.blogger.com/feeds/default/blogs");
            AtomFeed feed = null;
            feed = service.Query(query);
            foreach (AtomEntry entry in feed.Entries)
            {
                Console.WriteLine("  Blog title: " + entry.Title.Text);
            }
        }

        /** Lists the user's blogs and returns the URI for posting new entries
         * to the blog which the user selected.
         */
        static Uri SelectUserBlog(Service service)
        {
            Console.WriteLine("\nPlease select a blog on which to post.");
            FeedQuery query = new FeedQuery();
            // Retrieving a list of blogs
            query.Uri = new Uri("http://www.blogger.com/feeds/default/blogs");
            AtomFeed feed = service.Query(query);

            // Publishing a blog post
            Uri blogPostUri = null;
            if (feed != null)
            {
                foreach (AtomEntry entry in feed.Entries)
                {
                    // Print out the title of the Blog
                    Console.WriteLine("  Blog name: " + entry.Title.Text);
                    Console.Write("  Post to this blog? (y/n): ");
                    if (Console.ReadLine().Equals("y"))
                    {
                        // find the href in the link with a rel pointing to the blog's feed
                        for (int i = 0; i < entry.Links.Count; i++)
                        {
                            if (entry.Links[i].Rel.Equals("http://schemas.google.com/g/2005#post"))
                            {
                                blogPostUri = new Uri(entry.Links[i].HRef.ToString());
                                Console.WriteLine("  Your new posts will be sent to " + blogPostUri.AbsoluteUri.ToString());
                            }
                        }
                        return blogPostUri;
                    }
                }
            }
            return blogPostUri;
        }

        /** Creates a new blog entry and sends it to the specified Uri */
        static AtomEntry PostNewEntry(Service service, Uri blogPostUri)
        {
            Console.WriteLine("\nPublishing a blog post");
            AtomEntry createdEntry = null;
            if (blogPostUri != null)
            {
                // construct the new entry
                AtomEntry newPost = new AtomEntry();
                newPost.Title.Text = "Marriage!";
                newPost.Content = new AtomContent();
                newPost.Content.Content = "
" +
                    "
Mr. Darcy has proposed marriage to me!
" +
                    "
He is the last man on earth I would ever desire to marry.
" +
                    "
Whatever shall I do?
" +
                    "
";
                newPost.Content.Type = "xhtml";
                newPost.Authors.Add(new AtomPerson());
                newPost.Authors[0].Name = "Elizabeth Bennet";
                newPost.Authors[0].Email = "liz@gmail.com";

                createdEntry = service.Insert(blogPostUri, newPost);
                if (createdEntry != null)
                {
                    Console.WriteLine("  New blog post created with title: " + createdEntry.Title.Text);
                }
            }
            return createdEntry;
        }

        /** Creates a new blog entry and sends it to the specified Uri */
        static void PostAndDeleteNewDraftEntry(Service service, Uri blogPostUri)
        {
            Console.WriteLine("\nCreating a draft blog post");
            AtomEntry draftEntry = null;
            if (blogPostUri != null)
            {
                // construct the new entry
                AtomEntry newPost = new AtomEntry();
                newPost.Title.Text = "Marriage! (Draft)";
                newPost.Content = new AtomContent();
                newPost.Content.Content = "
" +
                    "
Mr. Darcy has proposed marriage to me!
" +
                    "
He is the last man on earth I would ever desire to marry.
" +
                    "
Whatever shall I do?
" +
                    "
";
                newPost.Content.Type = "xhtml";
                newPost.Authors.Add(new AtomPerson());
                newPost.Authors[0].Name = "Elizabeth Bennet";
                newPost.Authors[0].Email = "liz@gmail.com";
                newPost.IsDraft = true;

                draftEntry = service.Insert(blogPostUri, newPost);
                if (draftEntry != null)
                {
                    Console.WriteLine("  New draft post created with title: " + draftEntry.Title.Text);
                    // Delete the newly created draft entry
                    Console.WriteLine("  Press enter to delete the draft blog post");
                    Console.ReadLine();
                    draftEntry.Delete();
                }
            }
        }

        /** Display the titles for all entries in the previously selected blog. */
        static void ListBlogEntries(Service service, Uri blogUri)
        {
            if (blogUri != null)
            {
                Console.WriteLine("\nRetrieving all blog posts");
                // Retrieve all posts in a blog
                FeedQuery query = new FeedQuery();
                Console.WriteLine("  Query URI: " + blogUri.ToString());
                query.Uri = blogUri;
                AtomFeed feed = service.Query(query);
                foreach (AtomEntry entry in feed.Entries)
                {
                    Console.WriteLine("  Entry Title: " + entry.Title.Text);
                }
            }
        }

        /** Display title for entries in the blog in the hard coded date range. */
        static void ListBlogEntriesInDateRange(Service service, Uri blogUri)
        {
            Console.WriteLine("\nRetrieving posts using query parameters");
            // Retrieve all posts in a blog between Jan 1, 2006 and Apr 12, 2007
            FeedQuery query = new FeedQuery();
            query.Uri = blogUri;
            query.MinPublication = new DateTime(2006, 1, 1);
            query.MaxPublication = new DateTime(2007, 4, 12);
            AtomFeed feed = service.Query(query);
            foreach (AtomEntry entry in feed.Entries)
            {
                Console.WriteLine("  Entry Title: " + entry.Title.Text);
            }
        }

        /** Change the contents of the newly created blog entry. */
        static AtomEntry EditEntry(AtomEntry toEdit)
        {
            Console.WriteLine("\nUpdating post");
            // Edit the new entry
            if (toEdit != null)
            {
                toEdit.Title.Text = "Marriage Woes!";
                Console.WriteLine("  Press enter to update");
                Console.ReadLine();
                toEdit = toEdit.Update();
            }
            return toEdit;
        }

        /** Delete the specified blog entry. */
        static void DeleteEntry(AtomEntry toDelete)
        {
            Console.WriteLine("\nDeleting post");
            // Delete the edited entry
            if (toDelete != null)
            {
                Console.WriteLine("  Press enter to delete the new blog post");
                Console.ReadLine();
                toDelete.Delete();
            }
        }

        /** Get the comments feed URI for the desired blog entry. */
        static Uri SelectBlogEntry(Service service, Uri blogPostUri)
        {
            Console.WriteLine("\nPlease select a blog entry on which to comment.");
            FeedQuery query = new FeedQuery();
            query.Uri = blogPostUri;
            AtomFeed feed = service.Query(query);
            Uri commentPostUri = null;

            if (feed != null)
            {
                foreach (AtomEntry entry in feed.Entries)
                {
                    // Print out the title of the Blog
                    Console.WriteLine("  Blog entry title: " + entry.Title.Text);
                    Console.Write("  Post a comment on this entry? (y/n): ");

                    if (Console.ReadLine().Equals("y"))
                    {
                        // Create the Post URL for adding a comment by finding this entry's id number.

                        // Find the href in the link with a rel pointing to the blog's feed.
                        for (int i = 0; i < entry.Links.Count; i++)
                        {
                            
                            if (entry.Links[i].Rel == "edit")
                            {
                                string commentUriStart = Regex.Replace(blogPostUri.ToString(), "/posts/default", "");
                                string selfLink = entry.Links[i].HRef.ToString();
                                string entryId = Regex.Replace(selfLink, blogPostUri.ToString() + "/", "");
                                // Build the comment URI from the blog id in and the entry id.
                                commentPostUri = new Uri(commentUriStart + "/" + entryId + "/comments/default");
                                Console.WriteLine("  Your new comments will be sent to " + commentPostUri.ToString());
                                return commentPostUri;
                            }
                        }
                    }
                }
            }

            return commentPostUri;
        }

        static AtomEntry PostNewComment(Service service, Uri commentPostUri)
        {
            Console.WriteLine("\nCommenting on a blog post");
            AtomEntry postedComment = null;
            if (commentPostUri != null)
            {
                // Add a comment.
                AtomEntry comment;
                comment = new AtomEntry();
                comment.Title.Text = "This is my first comment";
                comment.Content.Content = "This is my first comment";
                comment.Authors.Add(new AtomPerson());
                comment.Authors[0].Name = "Blog Author Name";
                postedComment = service.Insert(commentPostUri, comment);
                Console.WriteLine("  Result's title: " + postedComment.Title.Text);
            }
            return postedComment;
        }

        static void ListEntryComments(Service service, Uri commentUri)
        {
            if (commentUri != null)
            {
                Console.WriteLine("\nRetrieving all blog post comments");
                // Retrieve all comments on a blog entry
                FeedQuery query = new FeedQuery();
                Console.WriteLine("  Query URI: " + commentUri.ToString());
                query.Uri = commentUri;
                AtomFeed feed = service.Query(query);
                foreach (AtomEntry entry in feed.Entries)
                {
                    Console.WriteLine("  Comment Title: " + entry.Title.Text);
                }
            }
        }

        static void DeleteComment(AtomEntry commentEntry)
        {
            Console.WriteLine("\nDeleting the comment");
            if (commentEntry != null)
            {
                // Delete the comment.
                Console.WriteLine("  Press enter to delete the new comment post");
                Console.ReadLine();
                commentEntry.Delete();
            }
        }

        static void Main(string[] args)
        {
            Service service = new Service("blogger", "blogger-example");

            // ClientLogin using username/password authentication
            string username;
            string password;
            if (args.Length != 2)
            {
                Console.WriteLine("Usage: BloggerDevSample.exe <username> <password>");
                return;
            }
            else
            {
                username = args[0];
                password = args[1];
            }

            service.Credentials = new GDataCredentials(username, password);

            ListUserBlogs(service);
            Uri blogPostUri = SelectUserBlog(service);
            AtomEntry createdEntry = PostNewEntry(service, blogPostUri);
            PostAndDeleteNewDraftEntry(service, blogPostUri);
            ListBlogEntries(service, blogPostUri);
            ListBlogEntriesInDateRange(service, blogPostUri);
            AtomEntry editedEntry = EditEntry(createdEntry);
            DeleteEntry(editedEntry);
            Uri commentPostUri = SelectBlogEntry(service, blogPostUri);
            AtomEntry commentEntry = PostNewComment(service, commentPostUri);
            ListEntryComments(service, commentPostUri);
            DeleteComment(commentEntry);

            Console.WriteLine("Press enter to quit");
            Console.ReadLine();
        }
    }
}

Remoting Exception "[...] is not registered for activation"

RemotingException "[...] is not registered for activation"

I had to write something about it, because I was stuck for a whole hour and couldn't google anything useful.

It happens when the Client is trying to create a new remoting class "X".
The Server, by mistake, registered a remoting class "Y".

The classes must have the same name. Fix the class name.
That's it.

Google Command Line

Project homepage:
http://code.google.com/p/googlecl/

It is originally for *nix, but can also be used on Windows:
http://publicint.blogspot.com/2010/06/setup-googlecl-on-winxp.html

From the usage examples:

Blogger

• google blogger post --tags "GoogleCL, awesome" --title "Test Post" "I'm posting from the command line"
• google blogger post blogpost.txt
• google blogger list title,url-site # List posts
• google blogger delete --title "Test Post"
• google delete --title "Silly post number [0-9]*" # Delete posts matching regex
• google tag --title "Dev post" --tags "Python, software" # label an existing post

Calendar

• google calendar add "Dinner party with George today at 6pm" # add event to calendar
• google calendar today # List events for today only.
• google calendar list --date 2010-06-01,2010-06-30 # List events.
• google calendar delete --title "Dinner party with George" # Delete an event.

Contacts

• google contacts add "J. Random Hacker, jrandom@example.com"
• google contacts list name,email --title "J. Random Hacker"
• google contacts delete --title "J. Random Hacker"

Docs

• google docs delete --title "Evidence"
• google docs edit --title "Shopping list" --editor vim
• google docs get --title "Homework [0-9]*"
• google docs list title,url-direct --delimiter ": " # list docs
• google docs upload the_bobs.csv ~/work/docs_to_share/*

Picasa

• google picasa create --title "Vermont Test" --tags Vermont vermont.jpg
• google picasa get --title "Vermont Test" /path/to/download/folder
• google picasa list title,url-direct --query "A tag"
• google picasa post --title "Vermont Test" ~/old_photos/*.jpg # Add to an album
• google picasa tag --title "Vermont Test" --tags "places"
• google picasa delete --title "Vermont Test" # delete entire album

Youtube

• google youtube post --category Education --devtags GoogleCL killer_robots.avi
• google youtube delete --title "killer_robots.avi"
• google youtube list # list my videos
• google youtube tag -n ".*robot.*" --tags robot

Search, Buzz, Gmail, etc.

Get IMDB movie rating using JavaScript (Cross domain AJAX solution)

UPDATE: I modified my script to use imdbparser.appspot.com that I built, so the information is always accurate and it works fast.
This query:

https://imdbparser.appspot.com/?callback=foo&context=bar&action=rating&id=tt0411008

Gives this result: foo('bar', '8.7')

So you can write something like that:

<script type="text/javascript">

function foo(context, rating)

{

  alert("The rating is: " + rating);

}
</script>

<script src="https://imdbparser.appspot.com/?callback=foo&context=bar&action=rating&id=tt0411008" type="text/javascript">
</script>

Original Post:



Solution to what exactly?

In JavaScript you aren't suppose to communicate with other sites, such as IMDB. As a result, you can't get the rating of a movie just like that.
For more information:
http://en.wikipedia.org/wiki/Same_origin_policy

Example: Vicky Cristina Barcelona

How to use it in your website?

Put this code in the top of the page:

<script src="http://sites.google.com/site/ycouriel/files/imdbrating.js" type="text/javascript"> </script>

Put this code each time you want to get rating:

<script type="text/javascript"> IMDBRATING.registerTitle("tt0068646");</script>

Finally, put this code in the bottom of the page: 

<script type="text/javascript"> IMDBRATING.processTitles();</script>
You also need to put this CSS if you want the nice stars: imdbrating.css

How it's done?

The trick is to use Google. Consider the following query:

http://www.google.com/uds/GwebSearch?callback=IMDBRATING.ratingCallback&context=tt0497465&lstkp=0&rsz=small&hl=en&source=gsc&gss=.com&sig=d5fae37fdfdac0a0e1e1aa0c8bc4b04c&q=http%3A%2F%2Fwww.imdb.com%2Ftitle%2Ftt0497465%2F%20rating%2010%20site%3Aimdb.com&gl=www.google.com&key=notsupplied&v=1.0

You get in return:
IMDBRATING.ratingCallback( <search results here> );
This wonderful feature of Google allows you to write a query as the source of JavaScript: 

<script src=" <the query above here> " type="text/javascript"> </script>

By parsing the search results, you can easily find the rating.

Notes:

• This is a JavaScript solution; if you have a server running PHP or something you can put some page like Google's, only instead of search results you return the ratings. This could be wonderful, but all the websites on the Internet that do exactly that didn't work for me or were very slow.
• The rating you get is sometimes not updated, it entirely depends on how often Google database is updated.

Tabnapping - A New Type of Phishing Attack

I admit that before I saw this video I could have been easily fooled by this attack...

http://www.azarask.in/blog/post/a-new-type-of-phishing-attack/


A New Type of Phishing Attack from Aza Raskin on Vimeo.

Add C# Code Formatter Widget To Your Blog

This widget formats all the C# code in your blog so it looks exactly like in Visual Studio.
It supports all the cases of string literals, comments, keywords and preprocessors. It has a huge list of all commonly used types, and it has some capability of learning new types (classes, enums, interfaces, structs) from your code.
Try it now online! - OR - Add it to your blog:
Note: the widget is for lazy people like me, if you want you can add the formatting script to your HTML Layout manually.

Here is a simple example:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace exp1
{
    class Program
    {
        public static void Main(string[] args)
        {
            Console.WriteLine("Hello, world!");
        }
    }
}

This is what the author sees when writing the post:

<pre formatcs="1">using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace exp1

{

    class Program

    {

        public static void Main(string[] args)

        {

            Console.WriteLine("Hello, world!");

        }

    }

}</pre>

So how does it work?
The script scans the page looking for <pre> elements with the attribute formatcs=1. Each element is then formatted as C# code.
The <pre> tag was chosen for a reason - if the user doesn't have JavaScript supported, then the <pre> tag is the best way to show code in a blog.

Here is a more advanced example:

[XmlRoot("Node")]
class MyNode<T> : MyBaseClass<T>
    where T : Dictionary<List<T>, int>, ISerializable
{
    MyNode MyNode = new SuperNode();
    
    /// <summary>   *
    /// comment2... *
    /// </summary>  *
    MyType1 foo(out MyType2 x)
    {
        x = MyType1.StaticFunction(@"c:\");
        Console.WriteLine(" aaaa \" \\\" \\\\");
        return new T();
    }
}

Note that these classes are being deduced by reading the code: MyNode, MyBaseClass, SuperNode, MyType1, MyType2.
Note that "T" is not styled as a type, exactly as in Visual Studio.

OK OK! I'm convinced! How do I add this widget to my blog?
Simply by clicking here:
- Or - You can use the online version here:
formatmycsharpcode.blogspot.com

For more information refer to this wiki page.