Hi,
I have a script which calls the TurboVNC viewer, and I'm wondering whether
there's any way for my script to determine whether the Windows version of
TurboVNC's vncviewer.exe encountered an error or not?
When testing this from the DOS command-line, I used "start /wait" to ensure
that vncviewer.exe ran from the same shell / thread as my other DOS commands.
Note that ErrorLevel is not an environment variable, and "echo %ErrorLevel%"
will not work if an environment variable called "ErrorLevel" has been set. The
"set ErrorLevel=" is used to remove any existing ErrorLevel environment
variable.
C:\> set ErrorLevel=
C:\> start /wait /d "C:\Program Files\TurboVNC" vncviewer.exe invalid_host
C:\> echo %ErrorLevel%
I see an appropriate message dialog when I specify an invalid host - "Failed to
get server address (invalid_host) …", but the exit code (ErrorLevel) still
appears to be 0.
Below is an example to demonstrate how the "echo %ErrorLevel%" stuff is
supposed to work, but of course this is not a GUI application...
C:\> type test-return-code.c
#include <stdlib.h>
int main(int argc, char *argv[])
{
return atoi(argv[1]);
}
C:\> gcc -o test-return-code.exe test-return-code.c
C:\> set ErrorLevel=
C:\> test-return-code.exe 7
C:\> echo %ErrorLevel%
7
C:\>
Thanks,
James
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