Web我用代碼創建一個Viewport D: 但是不幸的是outp.png是空的,沒有任何內容。 如果我將視口應用於窗口: 一切正常。 outp.png不為空。 沒有人知道如何在不將視口應用於窗口的情況下獲取正確的圖像嗎 adsbygoogle window.adsbygoogle .push 問題解決了 WebBitmapFrame.Create method has variety of overloads and one of them accepts parameter of BitmapSource type. So as we know that TransformedBitmap inherits from BitmapSource we can pass it as a parameter to BitmapFrame.Create method. Here are the methods which works as you have described:
How do I convert DrawingVisual to a Bitmap? - Stack Overflow
WebC# (CSharp) System.Windows.Media.Imaging JpegBitmapEncoder - 40 examples found. These are the top rated real world C# (CSharp) examples of System.Windows.Media.Imaging.JpegBitmapEncoder extracted from open source projects. You can rate examples to help us improve the quality of examples. WebFeb 1, 2012 · var fileName = "img.jpg"; var bitMap = new WriteableBitmap (DrawCanvas, null); var ms = new MemoryStream (); System.Windows.Media.Imaging.Extensions.SaveJpeg (bitMap, ms, bitMap.PixelWidth, bitMap.PixelHeight, 0, 100); ms.Seek (0, SeekOrigin.Begin); var library = new … regal theaters irvine westpark
Generate 16-bit grayscale BitmapData and save to file
Web因此,我们尝试使用BitmapSource,这并不容易,因为像素格式不同。但我们最终成功了. 我们比较了每一代人的速度。使用SetPixel(位图)比使用字节数组(BitmapSource)慢得多,但使用字节数组意味着复杂:步幅、像素格式. 所以我们肯定选择了BitmapSource。 WebNov 16, 2012 · The fix is pretty simple, you just need to change the cache option to OnLoad and the problem is gone: BitmapSource Base64ToImage (string base64) { byte [] bytes = Convert.FromBase64String (base64); using (var stream = new MemoryStream (bytes)) { return BitmapFrame.Create (stream, BitmapCreateOptions.None, … WebAs far as I can tell the only way to convert from BitmapSource to Bitmap is through unsafe code... Like this (from Lesters WPF blog):. myBitmapSource.CopyPixels(bits, stride, 0); unsafe { fixed (byte* pBits = bits) { IntPtr ptr = new IntPtr(pBits); System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap( width, height, stride, … regal theaters jack london square oakland