c＃WPF图片框内的视频旋转

Question

我在堆栈面板中的 WPF window 中托管了一个图片框。我放置了代码来旋转堆栈面板，但它并没有旋转它的子元素，为什么？我希望它在运行时单击旋转按钮时旋转图片框内的视频流。我该怎么做？

private void rotate_Click(object sender, RoutedEventArgs e)
{
    RotateTransform rotateTransform = new RotateTransform(45);
    panel.RenderTransform = rotateTransform;
}

Answer 1

您无法旋转 Windows Forms 控件，因此您需要将 WindowsFormHost 替换为 WPF 控件才能旋转它：

A WindowsFormsHost cannot be rotated. To suppress this error, handle the LayoutError event and set ThrowException to false

WindowsFormsHost 元素的布局注意事项： https://msdn.microsoft.com/en-us/library/ms744952%28v=vs.110%29.aspx

Windows Forms controls cannot be rotated or skewed. The WindowsFormsHost element raises the LayoutError event if you apply a skew or rotation transformation. If you do not handle the LayoutError event, an InvalidOperationException is raised.

c＃WPF图片框内的视频旋转

c# WPF video rotation inside picturebox

c#

wpf

rotation

picturebox