VC常用代码之创建进程

╰半夏微凉° 2022-08-09 15:59 155阅读 0赞

作者：朱金灿

来源：[http://blog.csdn.net/clever101][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 line
    		NULL,           // Process handle not inheritable
    		NULL,           // Thread handle not inheritable
    		FALSE,          // Set handle inheritance to FALSE
    		CREATE_NO_WINDOW,              // 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;
    	}

[http_blog.csdn.net_clever101]: http://blog.csdn.net/clever101