BM_SETCHECK
A version of this page is also available for
4/8/2010
This message is sent by an application to set the check state of a radio button or check box.
Syntax
BM_SETCHECK wParam = (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 Value
This message always returns zero.
Remarks
The BM_SETCHECK message has no effect on push buttons.
Requirements
| Header | winuser.h |
| Windows Embedded CE | Windows CE 1.0 and later |
| Windows Mobile | Windows Mobile Version 5.0 and later |