wx.Postevent is only processed at the end

[franz steinhaeusler]

Hello, I don't have a runnable expample, so I try to show with pseudo code_

In a thread, I have a loop, which should update a dialog with progress bar.

Examplecode in thread:

while i < 10:
  event = wx.CommandEvent ()
  event.SetEventType (wx.wxEVT_COMMAND_BUTTON_CLICKED)
  event.SetId (9999)
  wx.PostEvent(self.m_pWndProgress, event) # this shall call OnUpdateProgress
  print "post event"
  # is here something missing, so that the UI is getting the posted events?
  #time.sleep(0.1)
  ++i

in Progress dialog
wx.EVT_BUTTON(self, 9999, self.OnUpdateProgress)

def OnUpdateProgress(self, event):
  print 'update'

output is:
post event
post event
...
post event
post event

update
update
...
update
update

so the update is not called before all PostEvents are delivered.

What do I have to to to get the OnUpdateProgress processed immediatly?

[franz steinhaeusler]

Sorry, solved, this was a bug in my program in another location...

[Chris Barker]

On Tue, May 30, 2017 at 5:48 AM, franz steinhaeusler <franz.ste...@gmail.com> wrote:

Sorry, solved, this was a bug in my program in another location...

glad you got it solved, but I can't help myself:

This looks like a much messier way to do this than you need. Rather than try to emulate a button click, why not simply call OnUpdateProgress? -- something like:

wx.CallAfter(the_dialog.OnUpdateProgress, None)

-CHB

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[franz steinhaeusler]

Hello Chris,

of course you are right, it's only because I port/ported wxWidgets C++ Code. Here in wxPython, wx.CallAfter would be first choice (and less (and more clean code)) and I change it to that.