Close all image acquisition devices.
The operator close_all_framegrabbers closes all currently open image acquisition devices. It is used to cope with deadlocks resulting from damaged image acquisition handles (in that case the use of close_framegrabber is impossible).
close_all_framegrabbers exists solely for the purpose of implementing the “reset program” functionality in HDevelop. close_all_framegrabbers must not be used in any application.
If it is possible to close all image acquisition devices, the operator close_all_framegrabbers returns the value 2 (H_MSG_TRUE). Otherwise an exception handling is raised.
close_all_framegrabbers is local and processed completely exclusively without parallelization.
Foundation