TreeView_SetExtendedStyle macro (commctrl.h)

Sets the extended style for a specified TreeView control. Use this macro or send the TVM_SETEXTENDEDSTYLE message explicitly.

Syntax

HRESULT TreeView_SetExtendedStyle(
   HWND  hwnd,
   DWORD dw,
   UINT  mask
);

Parameters

hwnd

Type: HWND

Handle to the TreeView control.

dw

Type: DWORD

Value that indicates the extended style. For more information on styles, see Tree-View Control Extended Styles.

mask

Type: UINT

Mask used to select the styles to be set.

Return value

Type: HRESULT

If this macro succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Requirements