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Sets the check state of a radio button or check box. You can send this message explicitly or by using the Button_SetCheck macro.
Parameters
-
wParam
-
The check state. This parameter can be one of the following values.
Value Meaning - BST_CHECKED
Sets the button state to checked. - BST_INDETERMINATE
Sets the button state to grayed, indicating an indeterminate state. Use this value only if the button has the BS_3STATE or BS_AUTO3STATE style. - BST_UNCHECKED
Sets the button state to cleared. -
lParam
-
This parameter is not used.
Return value
This message always returns zero.
Remarks
The BM_SETCHECK message has no effect on push buttons.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista [desktop apps only] |
| Minimum supported server |
Windows Server 2003 [desktop apps only] |
| Header |
|
See also
-
Reference