Header_GetItemCount macro (commctrl.h)

Gets a count of the items in a header control. You can use this macro or send the HDM_GETITEMCOUNT message explicitly.

Syntax

int Header_GetItemCount(
   HWND hwndHD
);

Parameters

hwndHD

Type: HWND

A handle to the header control.

Return value

Type: int

Returns the number of items if successful, or -1 otherwise.

Remarks

The Header_GetItemCount macro is defined as follows.

#define Header_GetItemCount(hwndHD)   \

       (int)SendMessage((hwndHD), HDM_GETITEMCOUNT, 0, 0L)

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Target Platform	Windows
Header	commctrl.h