Here’s the source to the WriteableBitmap sample I showed at Mix. The sample uses WriteableBitmap to take a “snapshot” of the running video to make a thumbnail. Click on the image below to run the sample. When running the sample, click on the running video to create a thumbnail. You can find the video for this sample here.
The demo shows the following new Silverlight 3 features:
· WriteableBitmap
· WrapPanel (new SDK control)
PingBack from http://blog.a-foton.ru/index.php/2009/03/23/writeablebitmap-sample/
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 ?
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
WriteableBitmap Class Question / building a image editor using WriteableBitmap
==============================================================
I am trying to do following in silverlight…
1. I need to load a imge.
2.I want to provide user ability to drag and drop a text box or a image that looks like text box over this image (loaded in point 1 above)
3. user can type some text in this text box . ability to have graphical fonts will be good.
4. user can rotate & drag this text box over the image loaded in step 1 above.
5. finally save all these change along with the image laoded in step 1 as one big image.
please let me know if this can be done using writablebitmap class in silverlight
OR
if there is another class to do this.
OR if i have to build a applet/activeX control/windows control and embeed that in ASP.net page
THanks
how to get pixel in coordinat x,y??