Hello Gatet,
if you want to create a fade-in or fade-out effect I think you can use the Alpha parameter in the NewBitmapEx function. To see an example pull down the Help menu and open the NI Example Finder. In the Example Finder, activate the search tab and enter the word 'bitmap' in the Keywords frame. The example alphablend.prj should be listed.
If that should not work, you can always use the CVI Animation Control to reach your goal. To do so, open your uir-file, pull down the Create menu and select Custom Controls -> Toolslib Controls -> Animation Control. This control is actually a set of pictures. A timer is used to display the pictures one by one, creating a moving image.
Success,
Wim
