asked on

Hiding batch file's console

This is a follow up on https://www.experts-exchange.com/jsp/qShow.jsp?ta=winprog&qid=10224880

I have a Win32 console program. It is complicated but of old-design full of printf's etc. I need the program to be invisible while running. I do this by calling FreeConsole. This much works

The question is: the console program also kicks off batch files using system("file.bat"); Each type a batch file runs a console flashes up while it is running. Is there anyway to hide these consoles.

Any quick fix simple solution gets an A

jkr

Switch from 'system()' to 'CreateProcess()' and use the 'SW_HIDE' flag in the 'STARTUPINFO' struct you're using, e.g.:

STARTUPINFO si;
PROCESS_INFORMATION pi;

ZeroMemory ( &si, sizeof ( STARTUPINFO));

si.cb = sizeof ( STARTUPINFO);
si.dwFlags = STARTF_USESHOWWINDOW;
si.wShowWindow = SW_HIDE;

bRes = CreateProcess ( NULL,
pszCmd, // command line, sth. like 'cmd.exe /c file.bat'
NULL,
NULL,
TRUE,
NORMAL_PRIORITY_CLASS,
GetEnvironmentStrings (),
NULL,
&si,
&pi
);

CloseHandle( pi.hProcess);
CloseHandle( pi.hThread);

Answers2000

ASKER

setting pszCmd is probably the trick I missed!

i can't test it till Friday, but I'll let you know then or soon after

What does /c option do ?

ASKER CERTIFIED SOLUTION

jkr

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