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This message is sent by an application to set the check state of a radio button or check box.
BM_SETCHECKwParam = (WPARAM)fCheck,lParam = 0;
Parameters
- fCheck
Specifies the check state. It is one of the following values.Value Description 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 unchecked. - lParam
Not used.
Return Values
This message always returns zero.
Remarks
The BM_SETCHECK message has no effect on push buttons.
Requirements
OS Versions: Windows CE 1.0 and later.
Header: Winuser.h.
See Also
BM_GETCHECK | BM_GETSTATE | BM_SETSTATE | Buttons Messages
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