Screen capture - kan man få fat i en bestemt applikation på deskt

http://www.pinvoke.net/default.aspx/user32/GetWindowDC.html

Der står hvordan du ca. gør.....


her er lidt af min egen kode....
[System.Runtime.InteropServices.DllImportAttribute("user32.dll")]
private static extern IntPtr GetWindowDC(IntPtr hwnd);

[System.Runtime.InteropServices.DllImportAttribute("gdi32.dll")]
private static extern bool BitBlt(
    IntPtr hdcDest,    // handle to destination DC
    int nXDest,        // x-coord of destination upper-left corner
    int nYDest,        // y-coord of destination upper-left corner
    int nWidth,        // width of destination rectangle
    int nHeight,        // height of destination rectangle
    IntPtr hdcSrc,      // handle to source DC
    int nXSrc,          // x-coordinate of source upper-left corner
    int nYSrc,          // y-coordinate of source upper-left corner
    System.Int32 dwRop  // raster operation code
);

[System.Runtime.InteropServices.DllImportAttribute("gdi32.dll")]
private static extern IntPtr CreateDC(
    string lpszDriver,  // driver name
    string lpszDevice,  // device name
    string lpszOutput,  // not used; should be NULL
    IntPtr lpInitData  // optional printer data
);



Her er så funktionen.... den her tager bare af din form, men principet er det samme ved andre...

            IntPtr screenDC = GetWindowDC(this.Handle);
            // IntPtr screenDC = CreateDC("DISPLAY", null, null, (IntPtr)null);
            Graphics screenGraphics = Graphics.FromHdc(screenDC);
            Image MyImage = new Bitmap(this.ClientRectangle.Width, this.ClientRectangle.Height, screenGraphics);
            Graphics destGraphics = Graphics.FromImage(MyImage);
            screenDC = screenGraphics.GetHdc();
            IntPtr destDC = destGraphics.GetHdc();
            BitBlt(destDC, 0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height, screenDC, 0, 0, 13369376);
            screenGraphics.ReleaseHdc(screenDC);
            destGraphics.ReleaseHdc(destDC);
            MyImage.Save(@"C:\Captured.jpg", ImageFormat.Jpeg);

// ouT

ER det C# programering du snakker om ?

ellers denne util http://www.gadwin.com/printscreen/ ka' anbefals !!!

tjaa, hvis det bare et et program findes der også Cropper...
http://blogs.geekdojo.net/brian/articles/Cropper.aspx

// ouT