Saving a DC

[Bucky]

I have a handle to a window that's been drawn on by various

Windows APIs. I can create a Graphics object and paint to it fine.

 

How can I save the contents of the Graphics object (or directly

from the hDC, if that makes a difference) to a file?

[Nerseus]

I think you'll need to create an appropriately sized Bitmap object and use the Graphics object's DrawImage method to draw the image to the Bitmap. Then use the Bitmap's Save method to write it out. It can write to various formats using the ImageFormat param (I think).

 

-Nerseus

[Bucky]

The problem there is that DrawImage only takes classes inherited

from Image (such as Bitmap) as a parameter; you can't pass a

Graphics object to DrawImage. Herein lies the problem.

 

I tried using BitBlt from the DC to the DC of a Bitmap's Graphics

object, but without luck.

[divil]

Data on a DC isn't strictly saved anywhere, it's often just drawn straight on to screen memory when needed. If bltting from the DC didn't work I don't know what to suggest.