Win32 C++ Can "Old Bitmap" Be Reused?

Question

I am wondering when working with HDCs, when I select back the original bitmap, can I use it again? Like...

HBITMAP hbmOld;

// FIRST
hbmOld = (HBITMAP)SelectObject(hdcMem, bitmap.hbmItemOverlay);    
Rectangle(hdcMem, 0, 0, MAP_WIDTH*BLOCK_SIZE, MAP_HEIGHT*BLOCK_SIZE); 
SelectObject(hdcMem, hbmOld);

// SECOND
stockBrush = GetStockBrush(BLACK_BRUSH);
hbmOld = (HBITMAP)SelectObject(hdcMem2, bitmap.hbmMap);
Rectangle(hdcMem2, 0, 0, bitmap.bmMap.bmWidth, bitmap.bmMap.bmHeight);
SelectObject(hdcMem2, hbmOld);

I am wondering if that is valid. It compiles fine and works, but I was wondering if it's bad programming practice to do that?

Answer 1

This seems perfectly fine in my opinion.

You could also test for memory leaks just to be 100% sure.

I personally use GDIView to do this. The key is for number of handles to be constant in the last column. If you need help with using it leave a comment. I would welcome if others can suggest better or easier to use alternative.

Best regards.