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This message retrieves a count of the items in a header control. You can send this message explicitly or use the Header_GetItemCount macro.
HDM_GETITEMCOUNTwParam= 0;lParam= 0;
Parameters
- wParam
Not used. - lParam
Not used.
Return Values
The number of items indicates success. -1 indicates failure.
Requirements
OS Versions: Windows CE 1.0 and later.
Header: Commctrl.h.
See Also
Header Controls Messages | Header_GetItemCount | HDITEM | HDM_GETITEM
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