#define WINVER 0x0502
#include <windows.h>
void Click()
{
INPUT input;
input.type = INPUT_MOUSE;
input.mi.dx = 0;
input.mi.dy = 0;
input.mi.dwFlags = MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP;
SendInput (1, &input, sizeof(input));
}