q11
asked on
Get redirected output from external program
I need to:
1) spawn an external command-line program from my application;
2) hide the window;
3) redirect the output; and
4) display the redirected output in my vcl app.
1 & 2 is easy to do with winexec (it is a 16-bit app) or shellexecute, but I am stuck on getting the redirected output.
Is the only way to do this really to create some temporary disk file?
1) spawn an external command-line program from my application;
2) hide the window;
3) redirect the output; and
4) display the redirected output in my vcl app.
1 & 2 is easy to do with winexec (it is a 16-bit app) or shellexecute, but I am stuck on getting the redirected output.
Is the only way to do this really to create some temporary disk file?
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ASKER
Exactly what was required!
I tried something similar but it wouldn't work. I think it was because I didn't use the security attr for the pipe creation.
I tried something similar but it wouldn't work. I think it was because I didn't use the security attr for the pipe creation.
WinExec probably does not handle redirection symbol correctly.
Execute command.com with a proper commandline including the redirection symbol instead. Remember to include the "/C" option to make command.com return without having to type "exit".
You can test the commandline at the DOS prompt first and the copy it to your program.
A similar solution is to create a batch file that executes the application and to start the batch file using WinExec -command.com will be started and closed as part of the process.
Henrik