internal override void FinalizeCreation()
{
try
{
using (FactoryMaker myFactory = new FactoryMaker())
{
SafeMILHandle renderTargetBitmap = null;
HRESULT.Check(UnsafeNativeMethods.MILFactory2.CreateBitmapRenderTarget(
myFactory.FactoryPtr,
(uint)_pixelWidth,
(uint)_pixelHeight,
_format.Format,
(float)_dpiX,
(float)_dpiY,
MILRTInitializationFlags.MIL_RT_INITIALIZE_DEFAULT,
out renderTargetBitmap));
Debug.Assert(renderTargetBitmap != null && !renderTargetBitmap.IsInvalid);
BitmapSourceSafeMILHandle bitmapSource = null;
HRESULT.Check(MILRenderTargetBitmap.GetBitmap(
renderTargetBitmap,
out bitmapSource));
Debug.Assert(bitmapSource != null && !bitmapSource.IsInvalid);
lock (_syncObject)
{
_renderTargetBitmap = renderTargetBitmap;
bitmapSource.CalculateSize();
WicSourceHandle = bitmapSource;
// For the purpose of rendering a RenderTargetBitmap, we always treat it as if it's
// not cached. This is to ensure we never render and write to the same bitmap source
// by the UCE thread and managed thread.
_isSourceCached = false;
}
}
CreationCompleted = true;
UpdateCachedSettings();
}
catch
{
_bitmapInit.Reset();
throw;
}
}
public void Clear()
{
HRESULT.Check(MILRenderTargetBitmap.Clear(_renderTargetBitmap));
RenderTargetContentsChanged();
}
