Legacy Document

Important: The information in this document is obsolete and should not be used for new development.

Inside Macintosh: More Macintosh Toolbox /

Chapter 3 - Help Manager / Help Manager Reference

Help Manager Routines / Determining Balloon Help Status

HMIsBalloon
To determine whether the Help Manager is currently displaying a help balloon, use the HMIsBalloon function.
FUNCTION HMIsBalloon: Boolean;
DESCRIPTION
The HMIsBalloon function returns TRUE if a help balloon is currently displayed on the screen and FALSE if a help balloon is not currently displayed. This function is useful for determining whether a balloon is showing before you redraw the screen. For example, you might want to determine whether a balloon is displayed so that you can remove it before opening or closing a window.

ASSEMBLY-LANGUAGE INFORMATION
The trap macro and routine selector for the HMIsBalloon function are
Trap macro Selector
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