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1/6/2010
This message determines whether the items in a list-view control are displayed as a group.
To send this message, call the SendMessage function.
Syntax
lResult = SendMessage(
(HWND) hWndControl,
(UINT) LVM_ENABLEGROUPVIEW,
(WPARAM) wParam, // = (WPARAM) (BOOL) fEnable;
(LPARAM) lParam // = (LPARAM) (LPARAM) lParam;
);
Parameters
- fEnable
BOOL that indicates whether to enable a list-view control to group displayed items. Use TRUE to enable grouping, FALSE to disable it.
- lParam
Must be NULL.
Return Value
Returns one of the following values.
| Value | Description |
|---|---|
0 |
The ability to display list-view items as a group is already enabled or disabled. |
1 |
The state of the control was successfully changed. |
-1 |
The operation failed. |
Requirements
| Header | commctrl.h |
| Windows Embedded CE | Windows CE 5.0 and later |