Python Programming On Win32

Creating the Application Object

The simplest way to create an application object for Scribble is to subclass one of the standard application objects. The PythonWin application object is implemented in pywin.framework.intpyapp , and it derives from the CApp class in pywin.framework.app. This base class provides much of the functionality for an application, so we too will derive our application from CApp.

This makes the application object small and simple. You obviously may need to enhance certain aspects; in this case, you should use the pywin.framework modules as a guide. The minimal application object looks like:

# scribbleApp.py
#
# The application object for Python.
from pywin.framework.app import CApp

class ScribbleApplication(CApp):
    def InitInstance(self):
        # All we need do is call the base class,
        # then import our document template.
        CApp.InitInstance(self)
        import scribble2

# And create our application object.
ScribbleApplication()

To run this, use the following command line:

C:\Scripts> start pythonwin /app scribbleApp.py

An instance of Pythonwin.exe now starts, but uses the application object you defined. Therefore, there’a no Interactive Window, the application doesn’t offer to open .py files, etc. The Scribble application should look like Figure 20.5.

Figure 20.5. Our PythonWin Scribble application

There is also a technique to avoid this command line, but you need a copy of a resource ...