KnowledgeHub
Questions
Tags
Users
Search
Alex Rivera
|
Logout
Edit Question
Title
Body
I am trying to copy a part of a BitmapSource to a WritableBitmap. This is my code so far: var bmp = image.Source as BitmapSource; var row = new WriteableBitmap(bmp.PixelWidth, bottom - top, bmp.DpiX, bmp.DpiY, bmp.Format, bmp.Palette); row.Lock(); bmp.CopyPixels(new Int32Rect(top, 0, bmp.PixelWidth, bottom - top), row.BackBuffer, row.PixelHeight * row.BackBufferStride, row.BackBufferStride); row.AddDirtyRect(new Int32Rect(0, 0, row.PixelWidth, row.PixelHeight)); row.Unlock(); I get "ArgumentException: Value does not fall within the expected range." in the line of CopyPixels . I tried swapping row.PixelHeight * row.BackBufferStride with row.PixelHeight * row.PixelWidth , but then I get an error saying the value is too low. I couldn't find a single code example using this overload of CopyPixels , so I'm asking for help. Thanks!
Tags (comma-separated)
Save Edits
Cancel