public void ClearCaptureEnvironment()
{
IsCaptureEnable = false;
GdiApi.DeleteObject(MemoryBitmapHandle);
GdiApi.DeleteDC(_memoryDC);
GdiApi.ReleaseDC(Handle, _windowDC);
GdiApi.DeleteDC(_windowDC);
}
public void CreateEnvironment()
{
Trace.Assert(_windowDC == IntPtr.Zero);
Trace.Assert(_memoryDC == IntPtr.Zero);
Trace.Assert(MemoryBitmapHandle == IntPtr.Zero);
_windowDC = WindowApi.GetWindowDC(Handle);
_memoryDC = GdiApi.CreateCompatibleDC(_windowDC);
var rect = GetWindowRectangle();
MemoryBitmapHandle = GdiApi.CreateCompatibleBitmap(_windowDC, rect.Width,
rect.Height);
GdiApi.SelectObject(_memoryDC, MemoryBitmapHandle);
IsCaptureEnable = true;
}