Error passing wxCommandEvent to wxQueueEvent Topic is solved

[MagickPanda]

I was trying to queue a wxCommandEvent event object via wxQueueEvent, but it seems wxQueueEvent function only takes wxEvent base type, hence the error.

Though the non-thread-safe version wxPostEvent works fine, and I don't think simply dynamically cast wxCommandEvent to its base class is a good idea to bypass this error.

Any tips will be appreciated.
Thanks.

this is from samples event code:

Code: Select all

void MyFrame::OnFireCustom(wxCommandEvent& WXUNUSED(event))
{
    wxCommandEvent eventCustom(wxEVT_MY_CUSTOM_COMMAND);

    wxPostEvent(this, eventCustom);
}

wxQueueEvent:

Code: Select all

void MyFrame::OnFireCustom(wxCommandEvent& WXUNUSED(event))
{
    wxCommandEvent eventCustom(wxEVT_MY_CUSTOM_COMMAND);

    wxQueueEvent(this, eventCustom); ///error: cannot convert wxCommandEvent* to wxEvent*
}

[doublemax]

Try this:

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void MyFrame::OnFireCustom(wxCommandEvent& WXUNUSED(event))
{
    wxCommandEvent *eventCustom = new wxCommandEvent (wxEVT_MY_CUSTOM_COMMAND);
    eventCustom ->SetEventObject(this);
    wxQueueEvent(this, eventCustom);
}

[coderrc]

you have to use a pointer.
try

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void MyFrame::OnFireCustom(wxCommandEvent& WXUNUSED(event))
{
    wxCommandEvent* evt = new wxCommandEvent(wxEVT_MY_CUSTOM_COMMAND);

    GetEventHandler()->QueueEvent(evt); 
}

QueueEvent takes possession of the pointer so don't delete it

[MagickPanda]

Thank you both for the help. I thought the wxQueueEvent takes a reference and make a copy of event object，thanks again.