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IsDlgButtonChecked (Compact 2013)

  • 项目

3/28/2014

This inline function retrieves the check state of a radio button or check box in a specified dialog box.

Syntax

__inline UINT WINAPI IsDlgButtonChecked(
  HWND hDlg,
  int nIDButton
);

Parameters

  • hDlg
    [in] Handle to the dialog box that contains the radio button or check box.
  • nIDButton
    [in] Integer that specifies the identifier of the radio button or check box for which you want to retrieve the check state.

Return Value

The following table shows the possible return values if you created the button with the BS_AUTOCHECKBOX, BS_AUTORADIOBUTTON, BS_AUTO3STATE, BS_CHECKBOX, BS_RADIOBUTTON, or BS_3STATE style.

Value

Description

BST_CHECKED

The button is checked.

BST_INDETERMINATE

The button is grayed, indicating an indeterminate state. This value applies only if the button has the BS_3STATE or BS_AUTO3STATE style.

BST_UNCHECKED

The button is unchecked.

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

Remarks

This function uses the SendDlgItemMessage function to send a BM_GETCHECK message to the specified button control in the specified dialog box.

Requirements

Header

windows.h

Library

coredll.lib

See Also

Reference

Dialog Box Functions
CheckDlgButton
SendDlgItemMessage
BM_GETCHECK