You use the VerifyValue method to check whether a check box has the expected selection state. If the check box does not have the expected selection state, Silk Test Classic raises the exception E_VERIFY.
Verify (window.IsChecked (), expected_value)
If a timeout is specified with the nTimeout parameter, Silk Test Classic calls VerifyValue() until the condition is verified or the timeout is reached. The time between checks is the value of the window retry interval Agent option, OPT_WINDOW_RETRY. If the verification fails, an exception is thrown.