Thread: Loading a .bmp and displaying into a dialog?

http://www.cprogramming.com/boardfaq.html#pic

He said ON A DIALOG. I don't know how, though. I use Visual Studio.

somewhere you have to have a memdc

Code:

CDC*      pActiveDC;
CDC        memdc;
CBitmap  bmp;

void MyClassDlg::LoadBmp()
{
         CDC* pdc = GetDC();
       
         memdc.CreateCompatibleDC( pdc );
         bmp.LoadBitmap( IDB_BITMAP1  );
         memdc.SelectObject( &bmp );
}

//** Windos paint message handler
void MyClassDlg::OnPaint()
{

       .......

       CDC* pdc = GetDC();

       BITMAP b;
       bmp.GetBitmap( &b );

    
pActiveDC = &memdc; //not needed but allows for selection from multiple memdcs available
       

       pdc->BitBlit( x, y, b.bmWidth, b.bmHeight, pActiveDC, 0, 0, SRCCOPY);

//where x, y are the coordinates on the dialog where the bitmap will be positioned

}

if you are not using the MFC you will need to use

HDC
BITMAP
and the GetDC(....)
CreateCompatibleDC(...)
LoadBitmap(....)

api calls

the concept is the same though...

to load from a file you will need the MAKEINTRESOURCE macro....