Windows Dev Center

HDM_GETITEMDROPDOWNRECT message

Gets the bounding rectangle of the split button for a header item with style HDF_SPLITBUTTON. Send this message explicitly or by using the Header_GetItemDropDownRect macro.

A window receives this message through its WindowProc function.

Parameters

wParam [in]

The zero-based index of the header control item for which to retrieve the bounding rectangle.

lParam [in, out]

A pointer to a RECT structure to receive the bounding rectangle information. The message sender is responsible for allocating this structure. The coordinates returned in the RECT structure are expressed as screen coordinates.

Return value

Returns TRUE if successful, or FALSE otherwise.

Remarks

The header item must have style HDF_SPLITBUTTON.

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2008 [desktop apps only]

Header

Commctrl.h

See also

About Header Controls

 

 

Community Additions

ADD
Show:
© 2015 Microsoft