Qt 3.3.8 pixmap to/from image error

I am trying to create a new icon set from an existing one by smooth scaling each of itâ€™s pixmaps. When I try to do this, I get an assertion when I am trying to convert the image back to a pixmap just before setting the new pixmap in the iconset. I looked into it further and found that even a simple round-trip to and from an image is not working, and I receive the following assertions:

Code:

ASSERT: "hBitmap" in kernel\qpixmap_win.cpp (117)
 ASSERT: "data->realAlphaBits" in kernel\qpixmap_win.cpp (118)

Here is some sample code that shows what I was trying to do:

Code:

QIconSet  *dest = new guiIconSet;
 
    for ( int size = 0 ; size < 2 ; size++ )
    {
        for ( int mode = 0 ; mode < 3 ; mode++ )
        {
            for ( int state = 0 ; state < 2 ; state++ )
            {
                // Get the image from the source iconsets pixmap
                srcImg = pixmap((QIconSet::Size )size, (QIconSet::Mode )mode, (QIconSet::State )state);
 
                if ( ! srcImg.isNull() )
                {
                    guiPixmap destPm;
 
                    // Get the dest pixmap from the dest image
                    destPm = srcImg;
 
                    if ( ! destPm.isNull() )
                        dest->setPixmap(destPm, (QIconSet::Size )size, (QIconSet::Mode )mode, (QIconSet::State )state);   
                }
            }
        }
    }

Thanks in advance.