Programming |  Windows Programming |  CheckRadioButton

CheckRadioButton

Adds a check mark to (checks) a specified radio button in a group and removes a check mark from (clears) all other radio buttons in the group.

Syntax

    BOOL CheckRadioButton(
        HWND hDlg,
        int  nIDFirstButton,
        int  nIDLastButton,
        int  nIDCheckButton
    );

Parameters

• hDlg
  [in] A handle to the dialog box that contains the radio button.
• nIDFirstButton
  [in] The identifier of the first radio button in the group.
• nIDLastButton
  [in] The identifier of the last radio button in the group.
• nIDCheckButton
  [in] The identifier of the radio button to select.

Return Value

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Remarks

The CheckRadioButton function sends a BM_SETCHECK message to each of the radio buttons in the indicated group.

The nIDFirstButton and nIDLastButton parameters specify a range of button identifiers (normally the resource IDs of the buttons). The position of buttons in the tab order is irrelevant; if a button forms part of a group, but has an ID outside the specified range, it is not affected by this call.

Function Information

• Minimum DLL Version user32.dll
• Header Declared in Winuser.h, include Windows.h
• Import library User32.lib
• Minimum operating systems Windows 95, Windows NT 3.1