GetCheck

Button Button Button

CButton::GetCheck

函式原型：

int GetCheck( ) const;

返回值：

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

BST_UNchecked	Button state is unchecked.
BST_CHECKED	Button state is checked.
BST_indeterminate	Button state is indeterminate (applies only if the button has the BS_3STATE or BS_AUTO3STATE style).

例子：

CButton myButton;// Create an auto 3-state
button.myButton.Create(_T("My button"), WS_CHILD|WS_VISIBLE|BS_AUTO3STATE, CRect(10,10,100,30), pParentWnd, 1);
// Set the check state to the next state
// (i.e. BST_UNCHECKED changes to BST_CHECKED
// BST_CHECKED changes to BST_INDETERMINATE
// BST_INDETERMINATE changes to BST_UNCHECKED).
myButton.SetCheck( ((myButton.GetCheck()+ 1 ) % 3) );