Thread: Simple message problem...

I've been reading a book about how computer games are made, and I came across the "PeekMessage" command for windows programming, and the book said to write it as below, but my compiler (Dev-C++, if that helps) wont accept it when I try use it to process input and logic etc, so, is it a problem with the code, or is it something else???

Code:

while(1)
	{
	if (PeekMessage(&msg,NULL,0,0,PM_REMOVE))
		{ 
		// test if this is a quit
        if (msg.message == WM_QUIT)
           break;
	
		// translate any accelerator keys
		TranslateMessage(&msg);

		// send the message to the window proc
		DispatchMessage(&msg);
		} // end if
    
    // main game processing goes here