github/greenshot
1
0
Fork 0
mirror of https://github.com/greenshot/greenshot synced 2025-08-21 05:53:27 -07:00
Code Issues Projects Releases Packages Wiki Activity Actions

Fixed the zoom, it was drawn incorrectly. Also changed the drawing to work with a timer, so the updates are made even if the mouse moves to quick. Added a bitblt method in the GDI32 class.

Browse source 
git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@2294 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4
This commit is contained in:
RKrom 2012-11-18 11:18:20 +00:00
commit 5a1c5fd0eb
3 changed files with 82 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

25
GreenshotPlugin/UnmanagedHelpers/GDI32.cs
View file

@ -40,7 +40,7 @@ namespace GreenshotPlugin.UnmanagedHelpers {
/// <summary>
/// GDI32 Helpers
/// </summary>
public class GDI32 {
public static class GDI32 {
[DllImport("gdi32", SetLastError=true)]
public static extern bool BitBlt(IntPtr hObject,int nXDest,int nYDest, int nWidth,int nHeight,IntPtr hObjectSource, int nXSrc,int nYSrc, CopyPixelOperation dwRop);
[DllImport("gdi32", SetLastError=true)]
@ -61,6 +61,29 @@ namespace GreenshotPlugin.UnmanagedHelpers {
public static extern uint GetPixel(IntPtr hdc, int nXPos, int nYPos);
[DllImport("gdi32")]
public static extern IntPtr CreateRoundRectRgn(int x1, int y1, int x2, int y2, int cx, int cy);
/// <summary>
///
/// </summary>
/// <param name="target"></param>
/// <param name="source"></param>
public static void BitBlt(this Graphics target, Bitmap source, Point location) {
IntPtr hDCSrc = IntPtr.Zero;
IntPtr hDCDest = IntPtr.Zero;
try {
hDCDest = target.GetHdc();
hDCSrc = CreateCompatibleDC(hDCDest);
SelectObject(hDCSrc, source.GetHbitmap());
GDI32.BitBlt(hDCDest, location.X, location.Y, source.Width, source.Height, hDCSrc, 0, 0, CopyPixelOperation.SourceCopy);
} finally {
if (hDCSrc != IntPtr.Zero) {
DeleteDC(hDCSrc);
}
if (hDCDest != IntPtr.Zero) {
target.ReleaseHdc(hDCDest);
}
}
}
}
[StructLayout(LayoutKind.Sequential, Pack = 2)]