How to create custom buttons (.gif files) with transparant background

[Antoine Venrooij]

Hi,
I created an AddIn which automatically shows a toolbar when you start
powerpoint (2000 and 2003).
In this toolbar build in FaceID buttons are shown with a transparant
background.
I created some custom buttons (type .gif) but these are shown with a white
background.
This is only appears in a toolbar. Any image application shows a transparant
image (e.g. letter W in color black).
Using the button editor is not an option because the .gif file is in the
template directory and is called for by the VBA code to appear in the
toolbar when starting ppt (AddIn).

Does anybody have a solution?

--

 

[raj]

create the gifs with a transparent background with alpha to 0

 

[Antoine Venrooij]

Thanks "raj" for your suggestion.

I created .gif files as well as .png files (in Photoshop "Saved for the Web"
setting) on a transparant layer and merged the layers before saving.
The transparancy changes to a white background only when the image is shown
in the PPT toolbar button. Typically all FaceID build in button image show
transparant.

I should like to make all button images transparant.

create the gifs with a transparent background with alpha to 0