Screen Image in C#

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Hi, I need to create an application in C# that captures part of the screen when certain part of the same screen changes. Thank you all.

Posted 9-Sep-10 19:53pm

AT--o

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4 solutions

Solution 3

Maybe something here[^] can help.

Posted 11-Sep-10 21:24pm

Abhinav S

Solution 4

Did you see my article on screen capture.

http://www.codeproject.com/Articles/91487/Screen-Capture-in-WPF-WinForms-Application.aspx[^]

I have also provided you a sample application with my article.

Posted 12-Sep-10 1:02am

Abhishek Sur

Solution 5

It really depends on what form would you want the screen capture to be.
If you just wanted a Bitmap object, this should do:

Bitmap screen_image = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);

Just tweak out the width and height

Posted 12-Sep-10 5:10am

Ruselo Riva Asentista

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alrosan · Accepted Answer · 2010-09-09T23:59:00

the idea from your problem takes multiple screen capture every constant time period and compare the images which taken pixel by pixel to select the part of screen was changed and captured it

Bitmap image1;
Bitmap image2;
Graphics gr;
private void Captures_Images()
{
    Bitmap image1 = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);
    Graphics gr = Graphics.FromImage(image1);
    gr.CopyFromScreen(0, 0, 0, 0, image1.Size);
    gr = null;
    pictureBox1.Image = image1;


    // Here Break Time Between Captured

    Bitmap image2 = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);
    gr = Graphics.FromImage(image2);
    gr.CopyFromScreen(0, 0, 0, 0, image2.Size);
    gr = null;
    pictureBox1.Image = image2;
}
void Compare_Images(Bitmap b1,Bitmap b2)
{
    int width = b1.Width;
    int height = b1.Height;
    for (int w = 0; w < width; w++)
    {
        for (int h = 0; h < height; h++)
        {
            if ((b1.GetPixel(w, h).A != b2.GetPixel(w, h).A) ||
                (b1.GetPixel(w, h).R != b2.GetPixel(w, h).R) ||
                (b1.GetPixel(w, h).G != b2.GetPixel(w, h).G) ||
                (b1.GetPixel(w, h).B != b2.GetPixel(w, h).B))
            {
                // Changed Bounds Start
            }
        }
    }
}