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Running an application

Is there any function that I can called to run a program at a specifc directory ?

Re: Running an application

On Windows, use CreateProcess.

On Linux, use the execv family of functions.

These functions allow you to specify the working directory.

Re: Running an application

gosh , I nearly fainted looking at the function's agruement
:( , how about some example ? Like launching hl ?

Re: Running an application

search for MSDN...
http://msdn.microsoft.com

Re: Running an application

Quote:

Originally Posted by Rifleman

gosh , I nearly fainted looking at the function's agruement
:( , how about some example ? Like launching hl ?

Instead of almighty CreateProcess, use ShellExecute.

example of opening .rtf document :

Code:

ShellExecute(theApp.m_pMainWnd->GetSafeHwnd(),NULL,"document.rtf",NULL,"C:\\foo",SW_SHOW);

Re: Running an application

thanks for the reply kx , but I think shellexcute cant specify a specific directory of the program

Re: Running an application

CreateProcess is not that complicated. There are good examples on MSDN, look it up, it's well explained.

Re: Running an application

Quote:

Originally Posted by Rifleman

thanks for the reply kx , but I think shellexcute cant specify a specific directory of the program

You mean working directory ? It is 5. parameter in shellexecute

Re: Running an application

well I have found the ultimate guide to executing stuff about year ago, but is down now, so I'll post here important things :)

Code:

Execute Program Way 1

-----------------------------------------------------------------------------

WinExec("d:\\vc\\finished\\mqyvc\\release\\mqyvc.exe",SW_SHOW);

-----------------------------------------------------------------------------



Execute Program Way 2

-----------------------------------------------------------------------------

ShellExecute(NULL,NULL,_T("1.txt"),NULL,_T("c:\\temp"),SW_SHOW);

ShellExecute(NULL, _T("open"), "www.alsk.net", NULL,NULL,SW_SHOW);

ShellExecute(NULL, _T("explore"), "d:\\vc\\temp", NULL,NULL,SW_SHOW);

-----------------------------------------------------------------------------



Execute Program Way 3

-----------------------------------------------------------------------------

char szCmdLine[100];

STARTUPINFO StartupInfo;

PROCESS_INFORMATION ProcessInfo;

GetStartupInfo(&StartupInfo);

StartupInfo.dwFlags=STARTF_USESHOWWINDOW;

StartupInfo.wShowWindow=SW_HIDE;

CreateProcess("d:\\vc\\finished\\mqyvc\\release\\mqyvc.exe",

szCmdLine,NULL,NULL,0,0,NULL,NULL,&StartupInfo,&ProcessInfo);

WaitForSingleObject(ProcessInfo.hProcess,5000);//or INFINITE

-----------------------------------------------------------------------------



Execute Program Way 4

-----------------------------------------------------------------------------

SHELLEXECUTEINFO seInfo;

ZeroMemory(&seInfo, sizeof(SHELLEXECUTEINFO));

seInfo.cbSize=sizeof(SHELLEXECUTEINFO);

seInfo.lpFile=strBrowserPath;

seInfo.lpParameters="D:\\Mqy\\Prj\\RunBrowser\\ExeFiles\\AutoLauchIndex.htm";

seInfo.nShow = SW_SHOWNORMAL;

ShellExecuteEx(&seInfo);

WaitForSingleObject(seInfo.hProcess,INFINITE);

-----------------------------------------------------------------------------



Use Multi-Language Dll

-----------------------------------------------------------------------------

In EPFApp.h:

HINSTANCE m_hLanDLL;



BOOL CEPFApp::InitInstance()

{

WORD wLangPID=PRIMARYLANGID(::GetSystemDefaultLangID()); 

switch(wLangPID) 

{ 

case LANG_CHINESE: 

m_hLanDLL=::LoadLibrary("EPResCn.dll"); 

break; 

case LANG_JAPANESE: 

m_hLanDLL=::LoadLibrary("EPResJp.dll"); 

break;

case LANG_ITALIAN: 

m_hLanDLL=::LoadLibrary("EPResIt.dll"); 

break;

} 

if(!m_hLanDLL) 

m_hLanDLL=AfxGetResourceHandle();

AfxSetResourceHandle(m_hLanDLL);



.....

}



LoadString(theApp.m_hLanDLL,IDS_STR_TabRoll,sDisplay,256);

-----------------------------------------------------------------------------



Use Dll's Function in Two Way

-----------------------------------------------------------------------------

In dll's Exemid_M.h:

#ifdef EXEMID_MDLL_EXPORTS

#define EXEMID_MDLL_API extern "C" __declspec(dllexport)

#else

#define EXEMID_MDLL_API extern "C" __declspec(dllimport)

#endif

EXEMID_MDLL_API int __stdcall DllExemidInit(int iP1,int iP2);



In dll's Exemid_M.cpp:

#define EXEMID_MDLL_EXPORTS

#include "Exemid_M.h"

int __stdcall DllExemidInit(int iP1,int iP2)

{

...

return 0;

}



In dll's Exemid_M.def:

EXPORTS DllExemidInit;

-------------------------------------

Way1:Run time load

-------------------------------------

In EPFApp.h:

#include "EPDllDef.h"

HINSTANCE m_hImgDLL;



In EPDllDef.h:

typedef int (__stdcall *DllExemidInitDef)(int iP1,int iP2);

extern DllExemidInitDef DllExemidInit;



In EPFApp.cpp:

DllExemidInitDef DllExemidInit;

int CEPFApp::LoadDllFunc(void)

{

m_hImgDLL=::LoadLibrary("Exemid_M.dll"); 

DllExemidInit = (DllExemidInitDef)GetProcAddress(m_hImgDLL,"DllExemidInit");

}



In use place:

#include "EPFApp.h"

DllExemidInit(10,20);

-------------------------------------

Way2:Ini load together

-------------------------------------

In EPFApp.h:

#include "../Exemid_M/Exemid_M.h"

#pragma comment(lib,"../Exemid_M/Temp/Exemid_M.lib")



In use place:

#include "EPFApp.h"

DllExemidInit(10,20);

-----------------------------------------------------------------------------



Declare Standard Dll

-----------------------------------------------------------------------------

int HXSmtp.h:



#define HXSMTP_API extern "C" __declspec(dllexport)



HXSMTP_API void SmtpInform(char* strSubjet, char* strBody);

HXSMTP_API void CloseSmtp();



in HXSmtp.cpp:



HXSMTP_API void SmtpInform(char* strSubjet, char* strBody){}

HXSMTP_API void CloseSmtp(){}



in HXSmtp.def:



LIBRARY      "HXSmtp"

DESCRIPTION  'HXSmtp Windows Dynamic Link Library'



EXPORTS

EXPORTS SmtpInform;

EXPORTS CloseSmtp;

-----------------------------------------------------------------------------



In Dll Use Outside Function

-----------------------------------------------------------------------------

in the dll:



typedef int( __cdecl *LPWriteLocalLog )(void *, unsigned long);

LPWriteLocalLog g_hWriteLocalLog = NULL;



HXSLLFUNC_API int NetWorkInit(LPWriteLocalLog)

{

g_hWriteLocalLog = hWriteLocalLog;

}



if( g_hWriteLocalLog )

g_hWriteLocalLog(bufExcept,iSizeExcept);



out the dll:

NetWorkInit(&WriteLocalLog);

-----------------------------------------------------------------------------



Use Dll Function

-----------------------------------------------------------------------------

typedef int MyTextOutDef(HDC hdc,int nXStart,int nYStart, LPCTSTR lpString,int cbString);

HINSTANCE hinst=LoadLibrary("a.dll");

MyTextOutDef *MyTextOut=(MyTextOutDef*)GetProcAddress(hinst,"MyTextOut");

MyTextOut(GetDC()->GetSafeHdc(),1,1,"aaa",3);

FreeLibrary(hinst);



to use this way, must have line in a.del of this dll project:

EXPORTS MyTextOut;

-----------------------------------------------------------------------------



Use Class in Dll

-----------------------------------------------------------------------------

1. Generate dll project

New-> MFC AppWizard(dll)->MFC Extension Dll(Using shared MFC dll)->

Add Class CMDXRowset as the following way:

in .h:

#define CLASS_EXPORT AFX_CLASS_EXPORT 

class CLASS_EXPORT CMDXRowset

{

public:

......

}



2. Use dll class in other project

Copy and insert the class's .h file.

Link with xxx.lib.

Run with xxx.dll.

-----------------------------------------------------------------------------



Self Defined Dll Functions

-----------------------------------------------------------------------------

void CEPApp::MyShellExecute(HWND hwnd, LPCSTR lpOperation, LPCSTR lpFile, LPCSTR lpParameters, LPCSTR lpDirectory, INT nShowCmd)

{

typedef HINSTANCE (WIEPPI *SHELLEXECUTE)(

HWND hwnd, 

LPCSTR lpOperation,

LPCSTR lpFile,

LPCSTR lpParameters,

LPCSTR lpDirectory, 

INT nShowCmd); 

HMODULE m_hShell32=LoadLibrary("Shell32.dll");

SHELLEXECUTE m_p_fnShellExecute=(SHELLEXECUTE)GetProcAddress(m_hShell32,"ShellExecuteA");

m_p_fnShellExecute(hwnd,lpOperation,lpFile,lpParameters,lpDirectory,nShowCmd);

FreeLibrary(m_hShell32);

}

BOOL CEPApp::MyShell_NotifyIcon(DWORD dwMessage, PNOTIFYICONDATAA lpData)

{

typedef BOOL (WIEPPI *SHELLNOTIFYICON)(

DWORD dwMessage, PNOTIFYICONDATAA lpData); 

HMODULE m_hShell32=LoadLibrary("Shell32.dll");

SHELLNOTIFYICON m_p_fnShell_NotifyIcon=(SHELLNOTIFYICON)GetProcAddress(m_hShell32,"Shell_NotifyIconA");

BOOL bSuc=m_p_fnShell_NotifyIcon(dwMessage,lpData);

FreeLibrary(m_hShell32);

return bSuc;

}

-----------------------------------------------------------------------------

Re: Running an application

Final question , what function should I use to create a folder ?

Re: Running an application

Code:

mkdir()

Re: Running an application

mkdir() on windows does not correspond to mkdir() on Linux.
Use something like that:

Code:

#ifdef WIN32

#define POSIX_mkdir(a,b) _mkdir(a)

#else

#define POSIX_mkdir(a,b) mkdir(a,b)

#endif

and call POSIX_mkdir instead.

Re: Running an application

wow ! Pierre , I will marry you if you're a female :D

Re: Running an application

no, thank you. I'm not, and I'm not gay either >:(

Re: Running an application

Quote:

Originally Posted by Rifleman

wow ! Pierre , I will marry you if you're a female :D

I suppose you see to word "if" :D

Re: Running an application

well I have grepped my /usr/include directory in my Debian GNU/linux 3.0 and found no .h files has "mkdir()"

and this also doesn't work:

PHP Code:


		
			
#include <unistd.h>

mkdir("this_is_a_dir", 777);

Re: Running an application

#include <direct.h>

in my vc++ 6.0

Re: Running an application

well I suppose you don't know what GNU/Linux operating system is...
It's "not unix", but it's also absolutely not Windows. :D
the GNU/Linux operating system, which is commonly mis-named as "Linux", is a free UNIX clone operating system. It's mostly using GNU software with Linux as the kernel. As it's free everyone can make their own version of system, currently the most popular version is Red Hat Linux (which is only available for purchasing). If you want to download a version, you can download Debian GNU/Linux 3.0 r3 at:
http://www.debian.org (the size is as big as 7 cds as it contains tons of software)
There's also a version at free software foundation's ftp server, which is much smaller (only 1 cd):
ftp://ftp.gnu.org/gnu+linux-distros/...86-pentium.iso
to install it, you'll need a CD-RW drive to burn the ISO images to CDs. then boot from the CD and follow the instructions.

(another thing is MS Visual C++ doesn't work on GNU/Linux :D)

Re: Running an application

Ahhhhh, Linux.
Crappy Linux.

Code:

/* mkrmdir.c -- BSD compatible directory functions for System V

   Copyright (C) 1988, 1990 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 2, or (at your option)

   any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.  */

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <sys/types.h>

#include <sys/stat.h>

#include <errno.h>

#ifndef STDC_HEADERS

extern int errno;

#endif

/* mkdir and rmdir adapted from GNU tar. */

/* Make directory DPATH, with permission mode DMODE.

   Written by Robert Rother, Mariah Corporation, August 1985

   (sdcsvax!rmr or rmr@uscd).  If you want it, it's yours.

   Severely hacked over by John Gilmore to make a 4.2BSD compatible

   subroutine.  11Mar86; hoptoad!gnu

   Modified by rmtodd@uokmax 6-28-87 -- when making an already existing dir,

   subroutine didn't return EEXIST.  It does now. */

int

mkdir (dpath, dmode)

         char *dpath;

         int dmode;

{

  int cpid, status;

  struct stat statbuf;

  if (stat (dpath, &statbuf) == 0)

        {

          errno = EEXIST;                   /* stat worked, so it already exists. */

          return -1;

        }

  /* If stat fails for a reason other than non-existence, return error. */

  if (! existence_error (errno))

        return -1;

  cpid = fork ();

  switch (cpid)

        {

        case -1:                                        /* Cannot fork. */

          return -1;                                /* errno is set already. */

        case 0:                                         /* Child process. */

          /* Cheap hack to set mode of new directory.  Since this child

                 process is going away anyway, we zap its umask.

                 This won't suffice to set SUID, SGID, etc. on this

                 directory, so the parent process calls chmod afterward. */

          status = umask (0);           /* Get current umask. */

          umask (status | (0777 & ~dmode)); /* Set for mkdir. */

          execl ("/bin/mkdir", "mkdir", dpath, (char *) 0);

          _exit (1);

        default:                                        /* Parent process. */

          while (wait (&status) != cpid) /* Wait for kid to finish. */

                /* Do nothing. */ ;

          if (status & 0xFFFF)

                {

                  errno = EIO;                                /* /bin/mkdir failed. */

                  return -1;

                }

          return chmod (dpath, dmode);

        }

}

/* Remove directory DPATH.

   Return 0 if successful, -1 if not. */

int

rmdir (dpath)

         char *dpath;

{

  int cpid, status;

  struct stat statbuf;

  if (stat (dpath, &statbuf) != 0)

        return -1;                                  /* stat set errno. */

  if ((statbuf.st_mode & S_IFMT) != S_IFDIR)

        {

          errno = ENOTDIR;

          return -1;

        }

  cpid = fork ();

  switch (cpid)

        {

        case -1:                                        /* Cannot fork. */

          return -1;                                /* errno is set already. */

        case 0:                                         /* Child process. */

          execl ("/bin/rmdir", "rmdir", dpath, (char *) 0);

          _exit (1);

        default:                                        /* Parent process. */

          while (wait (&status) != cpid) /* Wait for kid to finish. */

                /* Do nothing. */ ;

          if (status & 0xFFFF)

                {

                  errno = EIO;                                /* /bin/rmdir failed. */

                  return -1;

                }

          return 0;

        }

}