Known issue: WPF will throw COM Exception when create RenderTargetBitmap too fast

.NET Core Version: 3.1.300
Windows version: 10.0.18362
Does the bug reproduce also in WPF for .NET Framework 4.8?: Yes

Problem description:

When we use RenderTargetBitmap to take the control screenshots, if our do it too frequent and too fast, then we will find that the framework throws an exception.

Actual behavior:

 System.Runtime.InteropServices.COMException: MILERR_WIN32ERROR

System.Runtime.InteropServices.COMException (0x88980003): MILERR_WIN32ERROR (Exception from HRESULT:0x88980003)
   in System.Windows.Media.Imaging.RenderTargetBitmap.FinalizeCreation()
   in System.Windows.Media.Imaging.RenderTargetBitmap..ctor(Int32 pixelWidth, Int32 pixelHeight, Double dpiX, Double dpiY, PixelFormat pixelFormat)

Expected behavior:

No exception

Minimal repro:

https://github.com/dotnet-campus/wpf-issues/tree/master/RenderTargetBitmapThrowsCOMExceptionWhenCreatedTooFast

Issue Analytics

State:
Created 3 years ago
Comments:16 (6 by maintainers)

Top GitHub Comments

4reactions

ulexcommented, Oct 6, 2022

The workaround without forcing the GC is to manually release the handle in the RenderTargetBitmap using reflection:

(bitmap.GetType().GetField("_renderTargetBitmap", BindingFlags.Instance | BindingFlags.NonPublic)?
.GetValue(bitmap) as IDisposable)?.Dispose();

3reactions

miloushcommented, Jun 3, 2020

Yeah, from my experience if you are running a x64 process (not the default setting anymore) and have plenty of RAM, the finalizers do eventually start kicking in.

As for fix, the BitmapSource should be IDisposable and release the handle/IWICBitmap on disposal rather than in a finalizer.

Top Results From Across the Web

Memory leak in RenderTargetBitmap

The leak seems to occur on the RenderTargetBitmap.Render method exclusively, even the DrawingContext.DrawRectangle call doesn't noticeably ...

WorkspaceManager is Throwing Exception

Hello, I am getting this exception while using Manager.ApplyWorkspace. The parameter value must be greater than zero.

Windows Presentation Foundation (WPF) forum - RSSing.com

If I start creating the bitmaps too fast, the constructor of RenderTargetBitmap throws the exception: MILERR_WIN32ERROR (Exception from HRESULT: 0x88980003). I ...

The slow screen redraws on the movement of the mouse - WPF

How can I speed up rendering when moving the mouse? For example, I draw two perpendicular lines on the screen, passing through the...

WPF 使用RenderTargetBitmap 快速截图出现COMException ...

RenderTargetBitmap throws COM exception when created too fast: MILERR_WIN32ERROR ... 已经报告官方，请看Known issus: WPF will throw COM Exception when create ...