infoblog » WriteableBitmap Sample

infoblog » WriteableBitmap Sample — Mon, 23 Mar 2009 06:55:31 GMT

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re: WriteableBitmap Sample

KooKiz — Mon, 23 Mar 2009 12:34:10 GMT

Hi,

There is a strange behaviour with the writeablebitmap. If I assign the writeablebitmap directly to the source of an image, it works (well, depending on the render tree, but that's another problem) :

WriteableBitmap wb = new WriteableBitmap(30, 40, PixelFormats.Bgr32);

wb.Render(this.sourceImage, new MatrixTransform());

image1.Source = wb;

But if I try to read directly the value of the WriteableBitmap pixels, it throws an exception :

WriteableBitmap wb = new WriteableBitmap(30, 40, PixelFormats.Bgr32);

wb.Render(this.sourceImage, new MatrixTransform());

int color = wb[0];

Is it a normal behaviour or is it because the writeablebitmap isn't yet fully implemented ?

re: WriteableBitmap Sample

WzBn — Tue, 07 Apr 2009 19:59:44 GMT

Hi, I'd like to save the image, in this case image1 to the isolatedstorage of the user. Any ideas how to do taht? Thanks