HDM_GETITEMCOUNT Overview  Group

The HDM_GETITEMCOUNT message retrieves a count of the items in a header control. You can send this message explicitly or by using the Header_GetItemCount macro.

HDM_GETITEMCOUNT 

wParam = 0; 

lParam = 0; 

 

Return Values

If the operation succeeds, the return value is the number of items.

If the operation fails, the return value is - 1.

See Also

Header_GetItemCount

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