public void Dispose()
{
if (hd.Handle == IntPtr.Zero || gd == null)
{
return;
}
GdiProxy.SelectObject(hs, hOldObj);
GdiProxy.DeleteObject(hb);
//gd.ReleaseHdc();
gs.ReleaseHdc();
gs.Dispose();
gd = gs = null;
b = null;
}
public void Assign(Graphics gfx, Rectangle rect, Bitmap bmp)
{
Dispose();
gd = gfx;
b = bmp;
r = rect;
gs = Graphics.FromImage(bmp);
hs = new HandleRef(gs, gs.GetHdc());
//hd = new HandleRef(gd, gd.GetHdc());
hb = new HandleRef(bmp, bmp.GetHbitmap());
hOldObj = new HandleRef(gs, GdiProxy.SelectObject(hs, hb));
if (hOldObj.Handle == IntPtr.Zero)
{
throw new Win32Exception();
}
}