MSGBOXCALLBACK callback function (winuser.h)

A callback function, which you define in your application, that processes help events for the message box. The MSGBOXCALLBACK type defines a pointer to this callback function. The MsgBoxCallback name is a placeholder for the name of the function that you define in your application.

Syntax

MSGBOXCALLBACK Msgboxcallback;

VOID Msgboxcallback(
  LPHELPINFO lpHelpInfo
)
{...}

Parameters

lpHelpInfo

Type: LPHELPINFO

Information about the item for which context-sensitive help has been requested.

Return value

None

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Header	winuser.h (include windows.h)