public static Bitmap CaptureCursor(ref int x, ref int y)
{
Bitmap bmp;
IntPtr hicon;
Win32Stuff.CURSORINFO ci = new Win32Stuff.CURSORINFO();
Win32Stuff.ICONINFO icInfo;
ci.cbSize = Marshal.SizeOf(ci);
if (Win32Stuff.GetCursorInfo(out ci))
{
if (ci.flags == Win32Stuff.CURSOR_SHOWING)
{
hicon = Win32Stuff.CopyIcon(ci.hCursor);
if (Win32Stuff.GetIconInfo(hicon, out icInfo))
{
x = ci.ptScreenPos.x - ((int)icInfo.xHotspot);
y = ci.ptScreenPos.y - ((int)icInfo.yHotspot);
Icon ic = Icon.FromHandle(hicon);
bmp = ic.ToBitmap();
return(bmp);
}
}
}
return(null);
}
/// <summary>
/// The capture cursor.
/// </summary>
/// <param name="x">
/// The x.
/// </param>
/// <param name="y">
/// The y.
/// </param>
/// <returns>
/// The <see cref="Bitmap"/>.
/// </returns>
public static Bitmap CaptureCursor(ref int x, ref int y)
{
Win32Stuff.CURSORINFO cursorInfo = new Win32Stuff.CURSORINFO();
cursorInfo.cbSize = Marshal.SizeOf(cursorInfo);
if (!Win32Stuff.GetCursorInfo(out cursorInfo))
{
return(null);
}
if (cursorInfo.flags != Win32Stuff.CURSOR_SHOWING)
{
return(null);
}
IntPtr hicon = Win32Stuff.CopyIcon(cursorInfo.hCursor);
if (hicon == IntPtr.Zero)
{
return(null);
}
Win32Stuff.ICONINFO iconInfo;
if (!Win32Stuff.GetIconInfo(hicon, out iconInfo))
{
return(null);
}
x = cursorInfo.ptScreenPos.x - ((int)iconInfo.xHotspot);
y = cursorInfo.ptScreenPos.y - ((int)iconInfo.yHotspot);
using (Bitmap maskBitmap = Bitmap.FromHbitmap(iconInfo.hbmMask))
{
// Is this a monochrome cursor?
if (maskBitmap.Height == maskBitmap.Width * 2)
{
Bitmap resultBitmap = new Bitmap(maskBitmap.Width, maskBitmap.Width);
using (Graphics desktopGraphics = Graphics.FromHwnd(Win32Stuff.GetDesktopWindow()))
{
IntPtr desktopHdc = desktopGraphics.GetHdc();
IntPtr maskHdc = GDIStuff.CreateCompatibleDC(desktopHdc);
IntPtr oldPtr = GDIStuff.SelectObject(maskHdc, maskBitmap.GetHbitmap());
using (Graphics resultGraphics = Graphics.FromImage(resultBitmap))
{
IntPtr resultHdc = resultGraphics.GetHdc();
// These two operation will result in a black cursor over a white background.
// Later in the code, a call to MakeTransparent() will get rid of the white background.
GDIStuff.BitBlt(
resultHdc,
0,
0,
32,
32,
maskHdc,
0,
32,
(int)GDIStuff.TernaryRasterOperations.SRCCOPY);
GDIStuff.BitBlt(
resultHdc,
0,
0,
32,
32,
maskHdc,
0,
0,
(int)GDIStuff.TernaryRasterOperations.SRCINVERT);
resultGraphics.ReleaseHdc(resultHdc);
GDIStuff.DeleteDC(resultHdc);
GDIStuff.DeleteObject(resultHdc);
}
IntPtr newPtr = GDIStuff.SelectObject(maskHdc, oldPtr);
GDIStuff.DeleteObject(oldPtr);
GDIStuff.DeleteObject(newPtr);
GDIStuff.DeleteDC(maskHdc);
desktopGraphics.ReleaseHdc(desktopHdc);
GDIStuff.DeleteDC(desktopHdc);
}
// Remove the white background from the BitBlt calls,
// resulting in a black cursor over a transparent background.
resultBitmap.MakeTransparent(Color.White);
return(resultBitmap);
}
}
//// Delete the mask, if present.
// if (iconInfo.hbmMask != IntPtr.Zero)
// {
// DeleteObject(iconInfo.hbmMask);
// }
//// Delete the color bitmap, if present.
// if (iconInfo.hbmColor != IntPtr.Zero)
// {
// DeleteObject(iconInfo.hbmColor);
// }
using (Icon icon = Icon.FromHandle(hicon))
{
return(icon.ToBitmap());
}
}
