C / C++ / MFC

devgo wrote:

can i use WriteConsole() to execute the command?

devgo wrote:

i am looking to execute a command once the cmd.exe process has started. how can i do this?

>cmd /?
/C      Carries out the command specified by string and then terminates
/K      Carries out the command specified by string but remains

#include "stdafx.h"
#include <windows.h> 
#include <tchar.h>
#include <stdio.h>
#include <process.h>

#pragma comment(lib,"user32.lib")

HANDLE g_hChildStd_IN_Rd = NULL;
HANDLE g_hChildStd_IN_Wr = NULL;
HANDLE g_hChildStd_OUT_Rd = NULL;
HANDLE g_hChildStd_OUT_Wr = NULL;

unsigned __stdcall ReadCMDThread(void* pArguments)
{
	DWORD dwAvailable =0;
	DWORD bytesRead =0;
	CHAR szOut[4096] = {0};
	while(0 == bytesRead)
	{
		PeekNamedPipe(g_hChildStd_OUT_Rd,szOut,sizeof(szOut),&bytesRead,&dwAvailable,NULL);
		if(0 != bytesRead)
		{
			Sleep(1000);
			ReadFile(g_hChildStd_OUT_Rd,szOut,sizeof(szOut),&bytesRead,NULL);
			::MessageBoxA(NULL,szOut,"",MB_OK);
			break;
		}
	}
	return 0;
}

int _tmain(int argc, _TCHAR* argv[])
{
	DWORD bytesRead;
	DWORD exitcode;
	PROCESS_INFORMATION pi;
	STARTUPINFO si;
	SECURITY_ATTRIBUTES sa;

	ZeroMemory(&sa,sizeof(sa));
	sa.nLength=sizeof(SECURITY_ATTRIBUTES);
	sa.bInheritHandle=TRUE;

	CreatePipe(&g_hChildStd_IN_Rd,&g_hChildStd_IN_Wr,&sa,0);
	CreatePipe(&g_hChildStd_OUT_Rd,&g_hChildStd_OUT_Wr,&sa,0);

	ZeroMemory(&si,sizeof(si));
	GetStartupInfo(&si);

	si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
	si.hStdOutput = g_hChildStd_OUT_Wr;
	si.hStdError = g_hChildStd_OUT_Wr;
	si.hStdInput = g_hChildStd_IN_Rd;
	si.wShowWindow = SW_HIDE;
	
	BOOL bSuccess = CreateProcess(
		_T("C:\\windows\\system32\\cmd.exe"),
		NULL,
		NULL,
		NULL,
		TRUE,
		CREATE_NEW_CONSOLE,
		NULL,
		NULL,
		&si,
		&pi);

	UINT threadID;
	HANDLE hThread = (HANDLE)_beginthreadex(NULL,0,&ReadCMDThread,NULL,0,&threadID);
	
	Sleep(500);

	if(INVALID_HANDLE_VALUE != hThread)
	{
		DWORD dwWritten = 0;
		CHAR szIN[4096];

		strcpy(szIN,"dir\n");
		WriteFile(g_hChildStd_IN_Wr,szIN,strlen(szIN),&dwWritten,NULL);
		
		WaitForSingleObject(hThread,INFINITE);
		CloseHandle(hThread);

		strcpy(szIN,"exit\n");
		WriteFile(g_hChildStd_IN_Wr,szIN,strlen(szIN),&dwWritten,NULL);
	}

	CloseHandle(g_hChildStd_IN_Rd);
	CloseHandle(g_hChildStd_IN_Wr);
	CloseHandle(g_hChildStd_OUT_Rd);
	CloseHandle(g_hChildStd_OUT_Wr);
	return 0;
}

BOOL result = CButton::Create(lpszCaption,dwStyle,rect,pParentWnd,nID);
this->SetParent(pParentWnd);
theApp.tooltip->AddTool(this,"HM?!");

BOOL MPictureBox::PreTranslateMessage(MSG* pMsg)
{
	if (NULL != theApp.tooltip)            
		theApp.tooltip->RelayEvent(pMsg);
	return CButton::PreTranslateMessage(pMsg);
}