Load Bitmap at Dialog background in an MFC application

Question

Explain the way to load Bitmap at Dialog background within an MFC application?

Answer 1

Within OnInit Dialog:

1. Create CBitmap through the bitmap.
2. Generate a memory DC ( as CDC)
3. Place the CBitmap in the memory DC (utilize CDC::SelectObject function)
Within OnPaint:
4. Find your dialog DC (as CDialog::GetDC)
5. Do StretchBlt or BitBlt on dialog DC along with memory DC as source DC (it will paint the bitmap upon your dialog).
6. Release dialog DC (by ReleaseDC function)