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Winforms System.Windows.Forms.Control 类有一个实例方法“DrawToBitmap”,我认为它在各种情况下都非常有用。我想知道是否有从 WPF 应用程序获取 System.Drawing.Bitmap 的等效方法?

我意识到我可以做一些 P/Invoke 的东西来获取应用程序窗口,但是我不喜欢这样,因为它不能很好地适应 64 位转换,并且不允许我只渲染子控件,如 DrawToBitmap做。

谢谢,理查德

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2 回答 2

10

使用 MSDN 上的 RenderTargetBitmap

RenderTargetBitmap bitmap = new RenderTargetBitmap(width, height, 96, 96, PixelFormats.Pbgra32);
bitmap.Render(this.YourVisualControlNameGoesHere); 
于 2009-03-09T00:19:46.700 回答
2

TFD 恰到好处。您还可以使用 MSDN 中不太优雅的参考示例:

Dim width As Integer = 128
Dim height As Integer = width
Dim stride As Integer = CType(width / 8, Integer)
Dim pixels(height * stride) As Byte

' Try creating a new image with a custom palette.
Dim colors As New List(Of System.Windows.Media.Color)()
colors.Add(System.Windows.Media.Colors.Red)
colors.Add(System.Windows.Media.Colors.Blue)
colors.Add(System.Windows.Media.Colors.Green)
Dim myPalette As New BitmapPalette(Colors)

' Creates a new empty image with the pre-defined palette
Dim image As BitmapSource = System.Windows.Media.Imaging.BitmapSource.Create(width, height, 96, 96, PixelFormats.Indexed1, myPalette, pixels, stride)
Dim stream As New FileStream("new.bmp", FileMode.Create)
Dim encoder As New BmpBitmapEncoder()
Dim myTextBlock As New TextBlock()
myTextBlock.Text = "Codec Author is: " + encoder.CodecInfo.Author.ToString()
encoder.Frames.Add(BitmapFrame.Create(image))
encoder.Save(stream)
于 2009-03-09T06:22:25.317 回答