DelphiVCL

When running dir() to DelphiVCL library or any DelphiVCL methods and properties in all previous sections, you might find many of Python’s built-in objects and properties. You can also read 7 Built-In Function Objects Inside The DelphiVCL Library which has some other built-in object functions which relate to the ones in this article. In this post, you’ll learn more about built-in…

In this post, we’ll use OnActionUpdate or DelphiVCL.Application.OnActionUpdate event occurs when an action’s Update method is called and its action list has not already handled it. Learning how to do it will allow you to easily build GUIs and test it with Python Testing Tools. Use the OnActionUpdate event handler to update the properties of an action when the application is idle if…

OnDeactivate or DelphiVCL.Application.OnDeactivate event Occurs when an application becomes inactive. How to use the DelphiVCL.Application.OnDeactivate Event properly? Write an OnDeactivate event handler to perform any special processing that should occur immediately before the application is deactivated. The OnDeactivate event occurs when the user switches from the…

What is the DelphiVCL.Application.ModalLevel Property? In this post, you’ll learn more about ModalLevel or DelphiVCL.Application.ModalLevel property that gives the number of currently open modal forms. ModalLevel is a read-only property that gives the number of modal forms which are currently open. Any call to ModalStarted increments the value of ModalLevel, while each call to…