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Header_GetItemDropDownRect macro (commctrl.h)

  • מאמר

Gets the coordinates of the drop-down button for a specified item in a header control. The header control must be of type HDF_SPLITBUTTON. Use this macro or send the HDM_GETITEMDROPDOWNRECT message explicitly.

Syntax

C++ 
BOOL Header_GetItemDropDownRect(
  [in]      HWND   hwnd,
  [in]      int    iItem,
  [in, out] LPRECT lprc
);

Parameters

[in] hwnd

Type: HWND

A handle to the header control.

[in] iItem

Type: int

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

[in, out] lprc

Type: LPRECT

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

Type: BOOL

TRUE if successful; otherwise, FALSE.

Requirements

Requirement Value
Minimum supported client Windows Vista [desktop apps only]
Minimum supported server Windows Server 2008 [desktop apps only]
Target Platform Windows
Header commctrl.h