Overview
Group
Quick Info

Windows NT
Yes
Win95
Yes
Win32s
Yes
Import Library
user32.lib
Header File
winuser.h
Unicode
No
Platform Notes
None

CheckDlgButton

The CheckDlgButton function changes the check state of a button control.

BOOL CheckDlgButton(

HWND hDlg,
// handle to dialog box
int nIDButton,
// button-control identifier
UINT uCheck
// check state
);

Parameters

hDlg

Identifies the dialog box that contains the button.

nIDButton

Identifies the button to modify.

uCheck

Specifies the check state of the button. This parameter can be one of the following values:

Value
Meaning
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

Return Values

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 CheckDlgButton function sends a BM_SETCHECK message to the specified button control in the specified dialog box.

See Also

CheckRadioButton
, IsDlgButtonChecked

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