You may want to look at the Win32::GUI::Graphic control. It provides the Paint event, which makes it possible for you to paint on the control itself.

This is from the paintBitmap method of the Win32::GUI::Loft::Control class:

    #Draw rectangle with the image as brush
    my $brsBitmap = Win32::GUI::Brush->new(
            -style => 3,                 #BS_PATTERN
            -pattern => $bmBitmap,
            );
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...

    $dcDev->SelectObject($rhBrush->{noPen});
    Win32::GUI::AdHoc::SetBrushOrgEx($dcDev,        #Move the brush or
+igin
            $rhPosCache->{left} + $leftBitmap,
            $rhPosCache->{top} + $topBitmap);
    $dcDev->SelectObject($brsBitmap);
    $dcDev->Rectangle(
            $rhPosCache->{left} + $leftBitmap,
            $rhPosCache->{top} + $topBitmap,
            $rhPosCache->{left} + $leftBitmap + $widthBitmap + 1,
            $rhPosCache->{top} + $topBitmap + $heightBitmap + 1,
            );
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The example is far from complete, but you get the idea.

I think you can "scroll" which parts within the image to display by moving it's origin, but I'm not sure.

If you want, you can download The GUI Loft and look at the source (PPM\Loft\lib\Win32\GUI\Loft\Control.pm and lib\TGL\WindowDesign.pm).

/J