how to capture screen with angle parameter in c#

Question

I've know how to capture screen in Capture screenshot of active window?, but I want to know how capture screen with certain angle. Thanks.

Answer 1

Why don't you capture the screen in bitmap and convert the bitmap into the rectangle shape you need?

Let's suppose you have the screen-capture as a bitmap originalbitmap

Now apply your rotations and transformations to the graphics context of your original image bitmap and store it in another bitmap originalbitmap2

Let's suppose you want to define and view a rectangular region of the rotated-bitmap. Store the rectangle information in : (say) rect1

 Bitmap bmp = new Bitmap(<your width>,<your height>); //your final image bitmap
 Graphics g = Graphics.FromImage(bmp);
 g.DrawImage(originalbitmap2,0,0,rect1,GraphicsUnit.Pixel);
 g.Dispose();

Now, you can use this bitmap!