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InputBox cancel

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T O P I C R E V I E W
AG_Kraemer	Posted - 06/20/2003 : 10:38:14 AM Edit: I meant the InputBox, not the progressbox Hello, I am a bit unhappy that the programm stops immediately once the cancel button in a progressbox is pressed. I would like to clean up a few thing which have been generated by the function up to this point. So, how do I intercept this? It appears there is no integer result returned by the progressbox procedure (e.g. messagebox--> IDNO=7). So how do I do this? Toralf Edited by - AG_Kraemer on 06/20/2003 10:48:28 AM Edited by - AG_Kraemer on 06/20/2003 11:01:09 AM
4 L A T E S T R E P L I E S (Newest First)
AG_Kraemer	Posted - 06/23/2003 : 03:01:35 AM Hi easwar, Thanks again for your quick reply! I have thought about the Labtalk detour. But as I try to keep the C-file as Labtalk free as possible I was hoping I have just overlooked the proper use of the inputbox - thanks for enlightening me! Regards, Toralf
easwar	Posted - 06/20/2003 : 12:02:23 PM Hi Toralf, You are correct - Clicking the Cancel button from the InputBox dialog results in run-time error and in termination of program - there is currently no way to catch this. We have added try-catch in Origin C our internal version and this will be available in the next release version. For now, you could use LabTalk from within OC and use the LabTalk GetString command, as in the code example posted below: Easwar OriginLab. void test() { string strCMD = "flag = 0; getstring (Enter string:); flag = 1;"; LT_execute(strCMD); string strInput; double dFlag; LT_get_var("flag", &dFlag); if(dFlag) { char szTemp[100]; LT_get_str("%B", szTemp, 100); strInput = szTemp; printf("You entered: %s\n", strInput); } else { printf("You hit the Cancel button!\n"); } } Edited by - easwar on 06/20/2003 12:19:13 PM Edited by - easwar on 06/20/2003 12:20:30 PM
AG_Kraemer	Posted - 06/20/2003 : 10:59:54 AM Thanks for your response! But I asked the wrong question: Not the cancel button of the progressbox was my problem but the the Cancel Button in the InputBox: repeatstr = InputBox("How many repetitions...) Regards, Toralf
easwar	Posted - 06/20/2003 : 10:53:53 AM Hi Toralf, You could do something like in the code pasted below... Easwar OriginLab. void pbTest() { progressBox pBox("Computing...hit Esc to stop."); pBox.SetRange(0,100); pBox.Set(0); // Loop over steps - performing your computation for(int ii = 0; ii <= 100; ii++) { // just wait a while on each step LT_execute("sec -p 0.1"); // Check if user hit Cancel key by updating progress box if(!pBox.Set(ii)) { printf("Computation terminated at step %d!\n", ii); break; } } }

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