/// <summary>
/// 截取窗体图
/// </summary>
/// <param name="f"></param>
/// <returns></returns>
public Bitmap GetFormFace(System.Windows.Forms.Form f)
{
IntPtr windc = f.Handle;
Graphics g1 = Graphics.FromHwnd(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);
g1.Dispose();
g2.Dispose();
GC.Collect();
return(mimage);
}
/// <summary>
/// 通过系统API截取全屏图像
/// </summary>
/// <returns></returns>
public Bitmap GetFullScreenByApi()
{
//方法三
IntPtr windc = GDIAPI.CreateDC("DISPLAY", null, null, IntPtr.Zero);
//Graphics g1 = Graphics.FromHdc(windc);
var 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();
return(mimage);
}