How to check in my test script that application hangs?

Hello,



I test MFC Win32 application that can do some operations for a long time. In that case any GUI operation is not accessable, because application cannot receive windows messages. Is there some solution how to check that application is busy and halt my test script?



I know that mouse cursor is changed to "Hour Glass" when application hangs. Maybe it is possible some how to check mouse cursor state?



Alexander