[python-win32] Canceling OnBeforeClick event in MapPoint 2006

[Oliver T. Nelson]

Some of you may have read this post over on the forums or wx mailing 
list, I'm hoping I can find someone that has gone through this problem 
already.  Canceling this event in other languages seems to work just 
fine, but in python it doesn't work.

The IDL for the function is:

void BeforeClick(long Button, long Shift, long X, long Y, bool* Cancel)

Based on this I've tried canceling the event by:

return 0, True

So that the byref cancel param gets set to true which should cancel the 
click event (works in c#).

I've tried working with the calendar control and have successfully 
canceled the BeforeUpdate event using the same line.  The only 
difference I can see between the two is that the calendar control is 
using a short for the cancel param while mappoint is using a bool.  I'm 
using early binding btw.

Below is the code I'm using to test (just the calendar code with some 
simple replacements for the mappoint control):

def GetTestMapPointClass():
    global mpParentModule
    win32ui.DoWaitCursor(1)
    mpParentModule = 
gencache.EnsureModule("{51C0A9CA-F7B7-4F5A-96F4-43927C6FA50F}", 0, 1, 0)
    win32ui.DoWaitCursor(0)
    if mpParentModule is None:
        return None

    class TestMPDialog(dialog.Dialog):
        def OnInitDialog(self):
       
            class MyMP(activex.Control, mpParentModule.MappointControl):
                def OnBeforeClick(self, Button, Shift, X, Y, Cancel):
                    print "clicked"
                    return 0, True

            rc = dialog.Dialog.OnInitDialog(self)
            self.olectl = MyMP()
            try:
                self.olectl.CreateControl("OCX", win32con.WS_TABSTOP | 
win32con.WS_VISIBLE, (7,43,500,300), self._obj_, 131)
                
self.olectl.NewMap(win32com.client.constants.geoMapNorthAmerica)
            except win32ui.error:
                self.MessageBox("The MP Control could not be created")
                self.olectl = None
                self.EndDialog(win32con.IDCANCEL)

            return rc
        def OnOK(self):
            pass
           
    return TestMPDialog


Any help appreciated.

OLIVER