Thread: Command Line Arguments in Unicode

What is the best method to access the command line arguments in a single source Unicode/ASCII program?

I use __argc and __argv[] to access command line arguments from within MSVC++, however this does not work for strings defined as TCHAR for compliance with Unicode. Is GetCommandLine() and CommandLineToArgvW() the way to go?

GetCommandLine is good...but you could also;

Code:

#define UNICODE
#define _UNICODE
#include <windows.h>   
#include <tchar.h> 

int WINAPI _tWinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,
	LPTSTR lpCmdLine,int nCmdShow)
{
	TCHAR szBuff[] = _T("Hello World");
	return MessageBox(HWND_DESKTOP,szBuff,_T(""),MB_OK);
}

_TCHAR* argv[]?

Originally posted by JasonD
I use __argc and __argv[] to access command line arguments from within MSVC++

You can continue to do so if you wish: __targv is defined in tchar.h as either __argv or __wargv(_UNICODE).

You just have to use _tWinMain as in Fordy's example - or just parse the command line (LPTSTR lpCmdLine) from there as Fordy implied.

Thank you all for your replies. I had already known about __wargv, but I did not realize that __targv was defined as either __wargv or __argv depending on if it is a Unicode app or not. I had tested for the definition of UNICODE manually, and found that __wargv was an empty string in the case that it was... The problem is that I did not have the entry point of the app set to _tWinMain. It all works fine now. Information on this topic is rather difficult to find. Thank you for your help.