CreateProcess() compiling error? - c++

Question

i'm trying to figure out how to use the CreateProcess() function, and i'm not too proficient in C++. i've tried a few things to try making the error go away, but then it appears that the application doesn't do what i expect it to do thereafter.
what I want to do is pass "cmd.exe /c ipconfig > C:\test.txt" to it and have it execute that as expected.
the errors that i'm getting (in dev C++) are:
6 C:\Dev-Cpp\project\test\Untitled1.cpp main' must returnint'
C:\Dev-Cpp\project\test\Untitled1.cpp In function `int main(...)':
28 C:\Dev-Cpp\project\test\Untitled1.cpp return-statement with no value, in function returning 'int'
any help would be greatly appreciated.
here's the code i'm using (taken from microsoft's example):
#include <windows.h>
#include <stdio.h>
#include <tchar.h>
void _tmain( int argc, TCHAR *argv[] )
{
STARTUPINFO si;
PROCESS_INFORMATION pi;
ZeroMemory( &si, sizeof(si) );
si.cb = sizeof(si);
ZeroMemory( &pi, sizeof(pi) );
// Start the child process.
if( !CreateProcess( NULL, // No module name (use command line)
argv[1], // Command line
NULL, // Process handle not inheritable
NULL, // Thread handle not inheritable
FALSE, // Set handle inheritance to FALSE
0, // No creation flags
NULL, // Use parent's environment block
NULL, // Use parent's starting directory
&si, // Pointer to STARTUPINFO structure
&pi ) // Pointer to PROCESS_INFORMATION structure
)
{
printf( "CreateProcess failed (%d).\n", GetLastError() );
return;
}
// Wait until child process exits.
WaitForSingleObject( pi.hProcess, INFINITE );
// Close process and thread handles.
CloseHandle( pi.hProcess );
CloseHandle( pi.hThread );
}

Answer 1

Change
void _tmain( int argc, TCHAR *argv[] )
to
int _tmain( int argc, TCHAR *argv[] )
and return an exit code in your program, that is, change
{
printf( "CreateProcess failed (%d).\n", GetLastError() );
return;
}
to
{
printf( "CreateProcess failed (%d).\n", GetLastError() );
return 1;
}