VC常用代码之创建进程

作者：朱金灿

来源：http://blog.csdn.net/clever101

 

           创建进程是编程开发的常用操作。Windows中的创建进程采用API函数CreateProcess实现。下面是一个使用例子：

#include <Windows.h>
#include <string>

int _tmain(int argc, _TCHAR* argv[])
{

STARTUPINFO si;
PROCESS_INFORMATION pi;

ZeroMemory( &si, sizeof(si) );
si.cb = sizeof(si);
ZeroMemory( &pi, sizeof(pi) );

std::string strCmdLine = "ping www.baidu.com";

// Start the child process. 
if( !CreateProcess( NULL,   // No module name (use command line)
(LPSTR)strCmdLine.c_str(),        // 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 1;
}

// Wait until child process exits.
WaitForSingleObject( pi.hProcess, INFINITE );

// Close process and thread handles. 
CloseHandle( pi.hProcess );
CloseHandle( pi.hThread );

   getchar();
   return 0;
}

        使用上面的方式创建进程会出现一个控制台界面。要隐藏这个控制台界面，只需要将CreateProcess函数的第六个参数设为CREATE_NO_WINDOW，比如上面对应的代码应改为：

if( !CreateProcess( NULL,   // No module name (use command line)(LPSTR)strCmdLine.c_str(),        // Command lineNULL,           // Process handle not inheritableNULL,           // Thread handle not inheritableFALSE,          // Set handle inheritance to FALSECREATE_NO_WINDOW,              // No creation flagsNULL,           // Use parent's environment blockNULL,           // Use parent's starting directory &si,            // Pointer to STARTUPINFO structure&pi)           // Pointer to PROCESS_INFORMATION structure) {printf( "CreateProcess failed (%d)\n", GetLastError() );return 1;}