extern struct Process *FindTask();

mountrequest(bool)
{
    static APTR original_pr_WindowPtr;
    register struct Process *proc;

    proc = FindTask(0);
    if (!bool && proc->pr_WindowPtr != (APTR)-1) {
	original_pr_WindowPtr = proc->pr_WindowPtr;
	proc->pr_WindowPtr = (APTR)-1;
    }
    if (bool && proc->pr_WindowPtr == (APTR)-1)
	proc->pr_WindowPtr = original_pr_WindowPtr;
}