public Bitmap getFullScreen()
{
//方法一
//IntPtr window = GDIAPI.GetDesktopWindow();
//IntPtr windc = GDIAPI.GetDC(window);
//IntPtr winbitmap = GDIAPI.GetCurrentObject(windc, 7);
//Bitmap mimage = Image.FromHbitmap(winbitmap);
//try
//{
// GDIAPI.ReleaseDC(windc);
//}
//catch { }
//方法二
//Bitmap mimage = new Bitmap(System.Windows.Forms.Screen.PrimaryScreen.Bounds.Width, System.Windows.Forms.Screen.PrimaryScreen.Bounds.Height);
//Graphics gp = Graphics.FromImage(mimage);
//gp.CopyFromScreen(new Point(System.Windows.Forms.Screen.PrimaryScreen.Bounds.X, System.Windows.Forms.Screen.PrimaryScreen.Bounds.Y),new Point(0,0),mimage.Size,CopyPixelOperation.SourceCopy);
//方法三
IntPtr windc = GDIAPI.CreateDC("DISPLAY", null, null, (IntPtr)null);
Graphics g1 = Graphics.FromHdc(windc);
Bitmap mimage = new Bitmap(System.Windows.Forms.Screen.PrimaryScreen.Bounds.Width, System.Windows.Forms.Screen.PrimaryScreen.Bounds.Height, g1);
Graphics g2 = Graphics.FromImage(mimage);
IntPtr dc1 = g1.GetHdc();
IntPtr dc2 = g2.GetHdc();
GDIAPI.BitBlt(dc2, 0, 0, mimage.Width, mimage.Height, dc1, 0, 0, 13369376);
g1.ReleaseHdc(dc1);
g2.ReleaseHdc(dc2);
//GDIAPI.ReleaseDC(windc);
g1.Dispose();
g2.Dispose();
GC.Collect();
return(mimage);
}
public void getFullScreen(out Bitmap mimage)
{
//方法三
IntPtr windc = GDIAPI.CreateDC("DISPLAY", null, null, IntPtr.Zero);
//Graphics g1 = Graphics.FromHdc(windc);
mimage = new Bitmap(System.Windows.Forms.Screen.PrimaryScreen.Bounds.Width, System.Windows.Forms.Screen.PrimaryScreen.Bounds.Height);
Graphics g2 = Graphics.FromImage(mimage);
//IntPtr dc1 = g1.GetHdc();
IntPtr dc2 = g2.GetHdc();
GDIAPI.BitBlt(dc2, 0, 0, mimage.Width, mimage.Height, windc, 0, 0, 13369376);
//g1.ReleaseHdc(dc1);
g2.ReleaseHdc(dc2);
//try
//{
// GDIAPI.ReleaseDC(windc);
//}
//catch
//{ }
//g1.Dispose();
g2.Dispose();
GC.Collect();
}
