Visual Basic Concepts

Providing a Toolbox Bitmap for Your Control

The Toolbox bitmap size is 16 pixels wide by 15 pixels high, as specified by the ActiveX control specification. You can create a bitmap this size, and assign it to the ToolboxBitmap property of your UserControl object.

Important   Do not assign an icon to the ToolboxBitmap property. Icons do not scale very well to Toolbox bitmap size.

Visual Basic automatically uses the class name of your control as the tool tip text when users hover the mouse pointer over your icon in the Toolbox.

Tip   When creating bitmaps, remember that for many forms of color-blindness, colors with the same overall level of brightness will appear to be the same. You can avoid this by restricting your bitmap to white, black, and shades of gray, or by careful color selection.