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 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;

	}