system调用命令行命令而不显示命令行窗口
通常用system调用命令行命令时都会弹出黑底白字的命令行窗口,下面的代码可以不显示弹出的命令行窗口。
代码如下
#pragma comment( linker, "/subsystem:/"windows/" /entry:/"mainCRTStartup/"" ) // 设置入口地址
#include <windows.h>
#include <stdio.h>
#define COMMENDLINE "ping 127.0.0.1"
//调用命令行命令而不显示命令行窗口
BOOL system_hide(char* CommandLine)
{
SECURITY_ATTRIBUTES sa;
HANDLE hRead,hWrite;
sa.nLength = sizeof(SECURITY_ATTRIBUTES);
sa.lpSecurityDescriptor = NULL;
sa.bInheritHandle = TRUE;
if (!CreatePipe(&hRead,&hWrite,&sa,0))
{
return FALSE;
}
STARTUPINFO si;
PROCESS_INFORMATION pi;
si.cb = sizeof(STARTUPINFO);
GetStartupInfo(&si);
si.hStdError = hWrite;
si.hStdOutput = hWrite;
si.wShowWindow = SW_HIDE;
si.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;
//关键步骤,CreateProcess函数参数意义请查阅MSDN
if (!CreateProcess(NULL, CommandLine, NULL,NULL,TRUE,NULL,NULL,NULL,&si,&pi))
{
return FALSE;
}
CloseHandle(hWrite);
char buffer[4096] = {0};
DWORD bytesRead;
while(true)
{
memset(buffer,0,strlen(buffer));
if(ReadFile(hRead,buffer,4095,&bytesRead,NULL)==NULL)
break;
//buffer中就是执行的结果,可以保存到文本,也可以直接输出
//printf(buffer);//这行注释掉就可以了
Sleep(100);
}
return TRUE;
}
int main(int argc, char* argv[])
{
system_hide(COMMENDLINE);//不显示命令窗口
//system(COMMENDLINE);//显示命令行窗口
return 0;
}