如果仅想add a icon to any toolbutton, try Imagelist, add the bitmap to Imagelist,
set the "Images" of toolbar as this ImageList, and set the "ImageIndex" of toolbutton, OK.
If want to know how add any 动态加入方法，In<a href="http://glowing.yeah.net"> my homepage </a>these is a demo for how to do that.
Goodluck!
