KB 4041083 / KB 4040973已破坏服务中的WPF渲染

问题描述

我有一个服务，它使用以下内容呈现WPF控件并将它们保存为图像：

I have a service which renders WPF controls and saves them as an image using the following:

Private Shared Function ConvertToBitmap(uiElement As UIElement, resolution As Double) As RenderTargetBitmap
        Dim scale = resolution / 96.0
        uiElement.Measure(New Size([Double].PositiveInfinity, [Double].PositiveInfinity))
        Dim sz = uiElement.DesiredSize
        Dim rect = New Rect(sz)
        uiElement.Arrange(rect)
        Dim bmp = New RenderTargetBitmap(CInt(scale * (rect.Width)), CInt(scale * (rect.Height)), resolution, resolution, PixelFormats.[Default])
        bmp.Render(uiElement)
        Return bmp
    End Function

自KB 4041083 / KB 4040973（.NET Framework 3.5.1的安全和质量汇总，4.5.2,4.6，


4.6.1,4.6 .2和4.7 for Windows 7 SP1和Windows Server 2008 R2 SP1：

2017年9月12日）安装了renderi ng不再有效，我最终得到一张空白图片。 

这在服务中运行时似乎只是一个问题，而不是在通过窗口应用程序运行时。



卸载此更新可解决此问题。关于解决方案的任何想法，直到（如果）修复程序为此发布？

由于

Since KB 4041083 / KB 4040973 (Security and Quality Rollup for the .NET Framework 3.5.1, 4.5.2, 4.6,
4.6.1, 4.6.2, and 4.7 for Windows 7 SP1 and Windows Server 2008 R2 SP1:
September 12, 2017) was installed rendering no longer works and I end up with a blank image. 
This only seems to be a problem when run in a service and not when run via a windowed application.

Uninstalling the update fixes the issue. Any ideas on a work-around until (if) a fix is released for this?
Since

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