unsigned is_child_checked(handle window,
                          int identity)

This function determines if a button window is checked.


handle window

The handle of the parent window.

int identity

The identity of the child window whose status is being queried.



The value returned from a button created with any of the styles:

can be one of the following.

button_state::checked The button is checked.
button_state::indeterminate The button is in the third state.
button_state::Unchecked The button is unchecked.

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


The state button_state::indeterminate applies only to buttons with the style:

The message button_message::get_check is sent to the child window.