Dans la doc de mon compilateur, il y a
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
);
et
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
);
et aussi
The CheckRadioButton function 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.
BOOL CheckRadioButton(
HWND hDlg, // handle to dialog box
int nIDFirstButton, // identifier of first radio button in group
int nIDLastButton, // identifier of last radio button in group
int nIDCheckButton // identifier of radio button to select
);
selon le type de bouton.
