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ListView_SetItemState info  Overview  Group

The ListView_SetItemState macro changes the state of an item in a list view control. You can use this macro or explicitly send the LVM_SETITEMSTATE message.

An itemís state value includes a set of bit flags that indicate the itemís state. The state value can also include image list indexes that indicate the itemís state image and overlay image.

BOOL WINAPI ListView_SetItemState(

    HWND hwnd,

    int i,

    UINT state,

    UINT mask

   );

Parameters

hwnd 
Handle to the list view control.
i
Index of the list view item.
state 
Specifies the new state bits for the item. The mask parameter indicates the valid bits of the state parameter. The macro ignores bits in the state parameter if the corresponding bit is not set in the mask parameter.

The low-order byte contains a set of bit flags that indicate the itemís state. This byte can be a combination of the following values.

Value

Meaning

LVIS_CUT

The item is marked for a cut and paste operation.

LVIS_DROPHILITED

The item is highlighted as a drag-and-drop target.

LVIS_FOCUSED

The item has the focus, so it is surrounded by a standard focus rectangle. Although more than one item may be selected, only one item can have the focus.

LVIS_SELECTED

The item is selected. The appearance of a selected item depends on whether it has the focus, and on the system colors used for selection.

Bits 8 through 11 of the state parameter specify the one-based index of an overlay image in the controlís image lists. Both the full-sized icon image list and the small icon image list can have overlay images. The overlay image is superimposed over the itemís icon image. If these bits are zero, the item has no overlay image. To isolate these bits, use the LVIS_OVERLAYMASK mask. To specify an overlay index, use the INDEXTOOVERLAYMASK macro.

Bits 12 through 15 of the state parameter specify the one-based index of an image in the controlís state image list. The state image is displayed next to an itemís icon to indicate an application-defined state. If these bits are zero, the item has no state image. To isolate these bits, use the LVIS_STATEIMAGEMASK mask. To specify a state image index, use the INDEXTOSTATEIMAGEMASK macro.

mask
Specifies the bits of the state parameter that you want to set. To set an itemís overlay image index, set the LVIS_OVERLAYMASK bits. To set an itemís state image index, set the LVIS_STATEIMAGEMASK bits.

Return Values

No return value.

Remarks

The mask parameter specifies the state bits you want to modify, and the state parameter specifies the new value for those bits.

To set a bit in the item's internal state, set it in both the mask and state parameters.

To clear a bit in the item's internal state, set it in the mask parameter and clear it in the state parameter.

To leave a bit unchanged in the item's internal state, clear it in the mask parameter.

See Also

ListView_GetItemState, LVM_SETITEMSTATE

Comments:

See also:


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