Visual Basic, How: end code (something like exit code in C)

How: end code (something like exit code in C)

Author	Message
Roman Schwar #1 / 6	How: end code (something like exit code in C) I run an VB 5.0 exe under NT 4.0. I start this exe in a batch file from an MS_DOS Window. Is it possible to give an code to the end command so the code is passed to the batch file? Or is there an other way to pass the end code to the caller of my exe? I want to stop my VB app if there is an special error code and call it again from the start.bat file, when the app returned me that it was not an normal shut down. So I had to pass 2 different values to start.bat, when the VB app is ended. Any help wellcome. Roman --- Remove NOSPAM from my mail address.(It is inserted to avoid spam mail) Flowers are the smile of nature. We can do without them, but not as well. (Maximilian Kolbe)
Fri, 01 Sep 2000 03:00:00 GMT

VBDi #2 / 6	How: end code (something like exit code in C) Schwartz) schreibt: Quote: >Is it possible to give an code to the end command so the code is passed to >the batch file? Windows usually discards any returned exit status from Windows applications. Therefore I doubt that _any_ Windows exe could return an exit status. Perhaps console applications can do so, but not VB apps. DoDi Vielleicht am besten das Ergebnis in eine Datei schreiben, und von einem DOS-Programm lesen lassen, oder gleich die passende BAT-Datei erzeugen und nachher ausfhren. Rckgabewerte von Windows-Programmen sind bis Win3.11 immer weggeworfen worden, das drfte bei neueren Versionen und auch bei NT nicht anders sein.
Sat, 02 Sep 2000 03:00:00 GMT

Barr #3 / 6	How: end code (something like exit code in C) How about creating a specific "temp file" when the program opens and then deleting it when the program closes (whithout an error). In the batch file you could check for the existance of the file and if it is found then you know that you did not end the original program errorlessly? Kind of clunky but it should work. It will keep the files "clean" if everything goes correct. HTH, Barry Quote: >Schwartz) schreibt: >>Is it possible to give an code to the end command so the code is passed to >>the batch file? >Windows usually discards any returned exit status from Windows applications. >Therefore I doubt that _any_ Windows exe could return an exit status. Perhaps >console applications can do so, but not VB apps. >DoDi >Vielleicht am besten das Ergebnis in eine Datei schreiben, und von einem >DOS-Programm lesen lassen, oder gleich die passende BAT-Datei erzeugen und >nachher ausfhren. Rckgabewerte von Windows-Programmen sind bis Win3.11 immer >weggeworfen worden, das drfte bei neueren Versionen und auch bei NT nicht >anders sein. Barry Eggers eggers1 AT tsil DOT net
Sat, 02 Sep 2000 03:00:00 GMT

Mark Hur #4 / 6	How: end code (something like exit code in C) If you started a process with CreateProcess, you can easily get the return code with an API called something like GetExitCodeProcess. I think there is an API like SetExitCode which a VB program could call. Sorry, but you'll have to look up MSDN. Mar
Sun, 03 Sep 2000 03:00:00 GMT

Mark Hur #5 / 6	How: end code (something like exit code in C) I know that start /w under Windows 95 is documented to retrieve the exit code of the program it is waiting on. The NT version of Start is not the same, but probably has the same feature, somehow. However, the boring answer most people give is: write or create a file and use FIND or IF EXIST in the batch file. As I said in my other post, I'm pretty sure there is an API SetExitCode or something like it. Look up MSDN, or the source of the C runtime library :-) Mark
Sun, 03 Sep 2000 03:00:00 GMT

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