Transperancy for Toolbar Icons

[pavan]

Hi All,
We are adding toolbar buttons and trying to add icons to those buttons.
We not using Mask and Picture properties. IInstead we are adding it to
the document, copying the image to the clipboard and then doing a
pasteface to the button. this works fine.

But the icons come with white background. We've tried all options under
the sun, but alas! Using ICO files do not show the image at all but
only white square.
BMP, GIF, TIF, PNG also give a white background though they show the
image.
We tried filling background with 255,0,255 RGB combination. It makes
the background transparent but leaves a trail of Magenta color on the
borders.
We tried using alpha channelised image also, but same result.

Can anyone help us in making the background transparent?
TIA
Regards,
Pavan

 

[XL-Dennis]

Hi Pavan,

I recently wrote and publish an article about using customized images with
COM add-ins toolbars.

Using customized images in toolbars (COM Add-ins)
http://www.excelkb.com/article.aspx?id=10209

Personally I prefer to use the 'hidden form' approach which is also discussed.