I'm playing with GDI+ some more, and I put a png on my gui using it. But I don't see any sizing options. I don't see a GDI+ imagesetsize or graphicsetsize either. Here's what I have
_gdiplus_startup()
$rbpill = _gdiplus_imageloadfromfile(@scriptdir & "/rb.png")
$graphic = _GDIPlus_GraphicsCreateFromHWND($dr)
_GDIPlus_GraphicsDrawImage($graphic,$rbpill,@desktopwidth/2,@desktopheight/2)