HELPINFO structure (winuser.h)

Contains information about an item for which context-sensitive help has been requested.

Syntax

typedef struct tagHELPINFO {
  UINT      cbSize;
  int       iContextType;
  int       iCtrlId;
  HANDLE    hItemHandle;
  DWORD_PTR dwContextId;
  POINT     MousePos;
} HELPINFO, *LPHELPINFO;

Members

cbSize

Type: UINT

The structure size, in bytes.

iContextType

Type: int

The type of context for which help is requested. This member can be one of the following values.

• HELPINFO_MENUITEM: Help requested for a menu item.

• HELPINFO_WINDOW: Help requested for a control or window.

iCtrlId

Type: int

The identifier of the window or control if iContextType is HELPINFO_WINDOW, or identifier of the menu item if iContextType is HELPINFO_MENUITEM.

hItemHandle

Type: HANDLE

The identifier of the child window or control if iContextType is HELPINFO_WINDOW, or identifier of the associated menu if iContextType is HELPINFO_MENUITEM.

dwContextId

Type: DWORD

The help context identifier of the window or control.

MousePos

Type: POINT

The POINT structure that contains the screen coordinates of the mouse cursor. This is useful for providing help based on the position of the mouse cursor.

Requirements