public void Run()
{
SharpDX.Threading.TaskUtil.Run(() =>
{
while (!_cancelTask.IsCancellationRequested)
{
lock (_lockObj)
{
hwndRenderTarget.BeginDraw();
hwndRenderTarget.Clear(Color.White);
if (_opacity > 0.0f)//表示切换中
{
RectangleF preRenderRect = ZoomBitmap(RenderTargetClientSize, _preBmp.Size);
hwndRenderTarget.DrawBitmap(_preBmp.Bmp, preRenderRect, _opacity, BitmapInterpolationMode.NearestNeighbor, _preBmp.BitmapRectangleF);
_opacity -= 0.02f;
}
else
{
if (_preBmp != null)
{
_preBmp.Dispose();
}
}
RectangleF renderRect = ZoomBitmap(RenderTargetClientSize, _bmp.Size);
hwndRenderTarget.DrawBitmap(_bmp.Bmp, renderRect, 1f - _opacity, BitmapInterpolationMode.NearestNeighbor, _bmp.BitmapRectangleF);
hwndRenderTarget.EndDraw();
}
Thread.Sleep(40);
}
});
}
// Dispose(bool disposing) executes in two distinct scenarios.
// If disposing equals true, the method has been called directly
// or indirectly by a user's code. Managed and unmanaged resources
// can be disposed.
// If disposing equals false, the method has been called by the
// runtime from inside the finalizer and you should not reference
// other objects. Only unmanaged resources can be disposed.
protected virtual void Dispose(bool disposing)
{
// Check to see if Dispose has already been called.
if (!this.disposed)
{
// If disposing equals true, dispose all managed
// and unmanaged resources.
if (disposing)
{
// Dispose managed resources.
if (hwndRenderTarget != null)
{
hwndRenderTarget.Dispose();
hwndRenderTarget = null;
}
if (_preBmp != null)
{
_preBmp.Dispose();
_preBmp = null;
}
if (_bmp != null)
{
_bmp.Dispose();
_bmp = null;
}
}
// Call the appropriate methods to clean up
// unmanaged resources here.
// If disposing is false,
// only the following code is executed.
// Note disposing has been done.
disposed = true;
}
}
