public void DiscardDeviceResources()
{
_renderTarget?.Dispose();
_renderTarget = null;
if (_memDC != IntPtr.Zero && _hBitmap != IntPtr.Zero && _hOldBitmap != IntPtr.Zero)
{
Gdi32.SelectObject(_memDC, _hOldBitmap);
Gdi32.DeleteObject(_hBitmap);
}
if (_memDC != IntPtr.Zero)
{
Gdi32.DeleteDC(_memDC);
}
if (_screenDC != IntPtr.Zero)
{
User32.ReleaseDC(IntPtr.Zero, _screenDC);
}
_hOldBitmap = IntPtr.Zero;
_hBitmap = IntPtr.Zero;
_memDC = IntPtr.Zero;
_screenDC = IntPtr.Zero;
GC.Collect();
}
private void Dispose(bool disposing)
{
if (_disposed)
{
return;
}
_disposed = true;
if (Handle == IntPtr.Zero)
{
return;
}
if (_renderTarget != null)
{
_renderTarget.Dispose();
_renderTarget = null;
}
_d2dFactory.Dispose();
_d2dFactory = null;
if (_memDC != IntPtr.Zero)
{
Gdi32.DeleteDC(_memDC);
}
if (_screenDC != IntPtr.Zero)
{
User32.ReleaseDC(IntPtr.Zero, _screenDC);
}
_memDC = IntPtr.Zero;
_screenDC = IntPtr.Zero;
User32.DestroyWindow(Handle);
Handle = IntPtr.Zero;
gcHandle.Free();
}
private void DiscardDeviceResource()
{
_renderTarget?.Dispose();
_renderTarget = null;
if (_memDC != IntPtr.Zero && _hBitmap != IntPtr.Zero && _hOldBitmap != IntPtr.Zero)
{
Gdi32.SelectObject(_memDC, _hOldBitmap);
Gdi32.DeleteObject(_hBitmap);
}
_hOldBitmap = IntPtr.Zero;
_hBitmap = IntPtr.Zero;
GC.Collect();
}