wxPython question

[joshua solomon]

Hi, I hope this is the right place for asking this question. I am running
Python 2.2.2 on Windows 2000
Basically I have a loop within the OnPaint handler which I am using for
bouncing a ball around on a screen. The loop works fine and I have no
problems with that. However my next step is to break out of the loop as soon
as someone presses a key or left clicks the mouse. For this I guess I need
to somehow query the message loop, retrieve any pending events, check to see
if a mouse was clicked and then break out of the loop if it was clicked. My
question is how can I query the message loop and retrieve the necesary
object. If I don't do this, the keypress or mouse click handlers would be
called only after the loop terminates. This has me completely stumped. Is
there a better way to handle this? Any help would be greatly appreciated.
Thanks in advance. The loop and the OnPaint handler appears below although I
don't suppose that is important.

def OnPaint(self,event):
        MyDC=wxPaintDC(self)

        MyPen=wxPen('GREEN',1,wxSOLID)
        MyBrush=wxBLUE_BRUSH

        MyDC.BeginDrawing()
        MyDC.SetPen(MyPen)
        MyDC.SetBrush(MyBrush)
        if not self.x and not self.y:
            self.x=40
            self.y=40
        MyDC.DrawCircle(self.x,self.y,15)
        self.BounceBall(MyDC)
        MyDC.EndDrawing()

def BounceBall(self,dc):
        import time
        MyPen1=wxPen('GREEN',1,wxSOLID)
        MyBrush1=wxBLUE_BRUSH
        dc.SetPen(MyPen1)
        dc.SetBrush(MyBrush1)

        for y in range(1,100):
            dc.SetLogicalFunction(wxCLEAR)
            dc.DrawCircle(self.x,self.y,15)
            self.x+=5
            self.y+=5
            dc.SetLogicalFunction(wxCOPY)
            dc.DrawCircle(self.x,self.y,15)
            t1=time.clock()
            while 1:
                delt=time.clock()-t1
                if delt >=0.1:
                    break