I try to use wxWidgets in my C project.
As far as I know, for wxWidgets I need to use wxIMPLEMENT_APP(MyAPP ); instead of the main() function.
I don't understand how to write other functions to do other work before my wxWidgets graphics object is created.
In other words, I would like to understand how to get a result like this:

int main(int argc, char* argv[]) {
    configure_application_1();
    app_config app_cfg;
    app_configuration(app_cfg); 
    
    other_functions();

    ___create_wxWidgets________

}

CodePudding user response：

According to the official doc:

A wxWidgets application does not have a main procedure; the equivalent is the wxApp::OnInit member defined for a class derived from wxApp.

So put your code in wxApp::OnInit function.

CodePudding user response：

The main(), or WinMain() (or other entry points that used to exist, but don't any more because the corresponding platforms have gone extinct), is part of wxIMPLEMENT_APP() macro expansion. If you don't want it to define your entry point, you can use wxIMPLEMENT_APP_NO_MAIN(), but then you're responsible for initializing the library yourself.

However typically you would just leave it be and put your initialization code in your overridden MyApp::OnInit(), where MyApp is your class inheriting from wxApp.