Topic: Images for Image Buttons

[jbuzbee]

This is what I would like:  In VBA, GIF's with transparent backgrounds can be used for any control with a image property.  I seem to remember AutoCAD bitmaps we're set up the same way, but it seems somewhere along the way this changed.  I can create a bitmap in AutoCAD 2006, using the eraser tool to make the background transparent - like it used to be - but both AutoCAD and OpenDCL forms show the background as a grey color.  What is the deal?  Am I creating these images wrong?  Is there a better way?  I have Photoshop CS3 . . .?

Any insight into this most complexing issue would be greatly appreciated - thanks

[BazzaCAD]

I do know that you can import a gif with a transparent background into a pic. box, but I'm not sure if it works with an Img. button.
I know Owen has said that image processing isn't one of his strengths, so I'm not sure it will get fixed anytime soon. So if there are any C++ programers out that that are good with image processing now would be a good time to speak up.

[tlindell]

2006 was actually the first release I was able to keep an icon stick and use the transparent grey.  Before that release, it would always change it to the windows toolbar color with a new randomly named icon.

A grey with RGB value of 192 for each will import into either program as transparent.  I think there is a certain spectrum in every color that also comes in half transparent for blending to the background, but I haven't tried to pin them down. 

[LE]

To draw a bitmap with transparency color see:

http://www.codeguru.com/Cpp/G-M/bitmap/specialeffects/article.php/c1749/

[BazzaCAD]

To draw a bitmap with transparency color see:

http://www.codeguru.com/Cpp/G-M/bitmap/specialeffects/article.php/c1749/

Hopefully this info will be helpful to Owen.

[jbuzbee]

tlindell - that did it!  thanks!

[BazzaCAD]

A grey with RGB value of 192 for each will import into either program as transparent.

Wow tlindell, this was a great tip. It's working great & my buttons look great.
Thx a lot.

[BazzaCAD]

Strange the 192,192,192 works on GraphicButtons, but not PicBox...

[tlindell]

That is strange.  Initially, when I assign an icon to the picture box, the grey becomes white, but when I change the background color of the picbox, the icon remains with a white background.

Glad the info was useful otherwise.