Command line parameters to a Visual C++ Dialog prog.

[Kasper Kirkeby]

Hi..

How do i get parameters in a Visual C Dialog based app. (i.e. test.exe /test)

Regards
Kasper Kirkeby

[ilgar]

Use GetCommandLine() function
and parse it yourself.

Thanks,
Ilgar Mashayev

[Timothy Eyring]

I was just working on the same thing and stumbled into this approach. One advantage to it is that you don't have to parse the command line youself, MFC does a lot of the annoying grunt work for you.
ParseCommandLine goes though the command line sending each piece to CCommandLineInfo::ParseParam. You can add code in your own version of CCommandLineInfo to look for the flags you want. This seems to be fairly well described in the documentation.

Example:

In InitInstance()
...

// start addition
CMyComInfo cmdInfo; // CMyComInfo is derrived from CCommandLineInfo
ParseCommandLine(cmdInfo);
// end addition

int nResponse = dlg.DoModal();
if (nResponse == IDOK)

...

Simple verion of CMyComInfo

// MyComInfo.h: interface for the CMyComInfo class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_MYCOMINFO_H__7C4531D3_02FC_11D3_83E4_00207811095A__INCLUDED_)
#define AFX_MYCOMINFO_H__7C4531D3_02FC_11D3_83E4_00207811095A__INCLUDED_

#if _MSC_VER >= 1000
#pragma once
#endif // _MSC_VER >= 1000

class CMyComInfo : public CCommandLineInfo
{
public:
virtual void ParseParam( LPCTSTR lpszParam, BOOL bFlag, BOOL bLast );
CMyComInfo();
virtual ~CMyComInfo();

};

#endif // !defined(AFX_MYCOMINFO_H__7C4531D3_02FC_11D3_83E4_00207811095A__INCLUDED_)

and...

// MyComInfo.cpp: implementation of the CMyComInfo class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "My.h"
#include "MyComInfo.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CMyComInfo::CMyComInfo()
{

}

CMyComInfo::~CMyComInfo()
{

}

void CMyComInfo::ParseParam(LPCTSTR lpszParam, BOOL bFlag, BOOL bLast)
{
CMyApp *pApp=(CMyApp*)AfxGetApp();
if (bFlag) {
if (CString(lpszParam)==CString("test")) {
pApp->m_bTest=TRUE;
// or whatever settings need to be adjusted...
}
CCommandLineInfo::ParseParam(lpszParam, bFlag, bLast);
}

Thats it... (Yeah Right) I found that this works, but I haven't used it enough to
really know much about it. Read up on CCommandLineInfo and ParseParam, it may be
able to do what you want.

Good Luck,
-Timothy Eyring