w00t! Need help with rapidfire again...

#include <iostream> 
#include <windows.h> 
#include <time.h> 
using namespace std; 
int main()
{
	while(1)
	{
		if(GetAsyncKeyState(VK_LBUTTON))//for left mouse
		{  
                                              mouse_event(MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0); //Click Down
                                              Sleep (1);
                                              mouse_event(MOUSEEVENTF_LEFTUP, 0, 0, 0, 0);   //Click Up
                                              keybd_event(VK_RCONTROL,0x11,KEYEVENTF_KEYUP,0); //will virtually release key, but since key is held down it will seem like u pressed it again really fast.
		}
		if(GetAsyncKeyState(VK_LBUTTON)=0)
//This is the problem... Right here it should detect whether the Lmouse button is down or up, and if its up it should not click.
//However it does not detect "=0" as a valid command (=0 normaly means if its activated or not...)
//Any ideas or source that I could use for such an occasion?
		break;
	}
return 0;
}