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BM_GETSTATE message

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Retrieves the state of a button or check box. You can send this message explicitly or use the Button_GetState macro.

Parameters

wParam

Not used; must be zero.

lParam

Not used; must be zero.

Return value

The return value specifies the current state of the button. It is a combination of the following values.

Return code Description
BST_CHECKED
 The button is checked.
BST_DROPDOWNPUSHED
 Windows Vista. The button is in the drop-down state. Applies only if the button has the TBSTYLE_DROPDOWN style.
BST_FOCUS
 The button has the keyboard focus.
BST_HOT
 The button is hot; that is, the mouse is hovering over it.
BST_INDETERMINATE
 The state of the button is indeterminate. Applies only if the button has the BS_3STATE or BS_AUTO3STATE style.
BST_PUSHED
 The button is being shown in the pushed state.
BST_UNCHECKED
 No special state. Equivalent to zero.

Requirements

Requirement Value
Minimum supported client
 Windows Vista [desktop apps only]
Minimum supported server
 Windows Server 2003 [desktop apps only]
Header
Winuser.h (include Windows.h)

See also

Reference

BM_GETCHECK

BM_SETSTATE