Specifies what error occurred in a balloon.

msoBalloonErrorBadCharacterBalloon contains an ASCII control character other than CR or LF and less than 32.
msoBalloonErrorBadPictureRefBalloon contains a graphic that couldn't be displayed because the file doesn't exist or because the graphic isn't a valid .BMP or .WMF file.
msoBalloonErrorBadReferenceBalloon contains an unrecognized or unsupported reference.
msoBalloonErrorButtonlessModalThe balloon you attempted to display is modal, but it contains no buttons
The balloon won't be shown because it can't be dismissed.
msoBalloonErrorButtonModelessThe balloon you attempted to display is modeless, contains buttons, and has no procedure assigned to the Callback property
The balloon won't be shown because a callback procedure is required for modeless balloons.
msoBalloonErrorCharNotTopmostForModalModal balloon was requested by an application that isn't the active application
Microsoft Office renders balloons for the active (topmost) application only.
msoBalloonErrorCOMFailureBalloon could not be displayed because of a COM failure.
msoBalloonErrorNoneNo error was encountered.
msoBalloonErrorOtherBalloon won't appear because some other error occurred, such as another modal balloon is already active.
msoBalloonErrorOutOfMemoryBalloon won't appear because there is insufficient memory.
msoBalloonErrorTooBigBalloon is too big to appear on the screen.
msoBalloonErrorTooManyControlsBalloon contains more than twenty controls (check boxes or labels).
