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IsDlgButtonChecked info  Overview  Group

The IsDlgButtonChecked function determines whether a button control has a check mark next to it or whether a three-state button control is grayed, checked, or neither.

UINT IsDlgButtonChecked(

    HWND hDlg,

// handle of dialog box

    int nIDButton

// button identifier



Identifies the dialog box that contains the button control.
Specifies the integer identifier of the button control.

Return Values

The return value from a button created with the BS_AUTOCHECKBOX, BS_AUTORADIOBUTTON, BS_AUTO3STATE, BS_CHECKBOX, BS_RADIOBUTTON, or BS_3STATE style can be one of the following:




Button is checked.


Button is grayed, indicating an indeterminate state (applies only if the button has the BS_3STATE or BS_AUTO3STATE style).


Button is unchecked

If the button has any other style, the return value is zero.


The IsDlgButtonChecked function sends a BM_GETCHECK message to the specified button control.

See Also


See also:

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