delphivcl

What does the OnMessage Event in DelphiVCL.Application do? By Muhammad Azizul Hakim January 24, 2022 In Windows application development the OnMessage or DelphiVCL.Application.OnMessage occurs when the application receives a message from either the Windows operating system or another...

What Does The OnIdle Event In DelphiVCL.Application Do? By Muhammad Azizul Hakim January 11, 2022 During Windows development, the OnIdle or DelphiVCL.Application.OnIdle occurs when an application becomes idle. Write an OnIdle event handler to perform special processing when an application is...

What Is The OnException Event in DelphiVCL.Application? By Muhammad Azizul Hakim December 27, 2021 The OnException or DelphiVCL.Application.OnException event occurs when an unhandled exception occurs in the application. This is a fundamental error event to understand when you develop Windows...

What Is A DelphiVCL.BitBtn And Why Would I Use It? By Muhammad Azizul Hakim December 24, 2021 DelphiVCL.BitBtn is a push button control that can include a bitmap on its face. It’s an alternative to the regular button control which can’t directly use graphics on it. Bitmap buttons exhibit the...

What Is The The DelphiVCL Sender Property? By Muhammad Azizul Hakim December 22, 2021 The Sender property specifies which component notifies the change link object of changes. We use Sender to access the component that has changed. Here is a working example of the implementation of Sender...

What Is The DelphiVCL.Screen or TScreen Object? By Muhammad Azizul Hakim December 15, 2021 DelphiVCL.Screen or TScreen represents the state of the screen in which an application runs. TScreen introduces properties that specify: What forms and data modules have been instantiated by the...

What Is The OnActionUpdate Event In DelphiVCL.Application? By Muhammad Azizul Hakim December 10, 2021 OnActionUpdate or DelphiVCL.Application.OnActionUpdate event occurs when an action’s Update method is called and its action list has not already handled it. Use the OnActionUpdate event...

How To Force Execution Of The Destructor Code In An Object By Muhammad Azizul Hakim December 9, 2021 The DisposeOf method or DelphiVCL.Application.DisposeOf forces the execution of the destructor code in an object. After the DisposeOf method is called, the object is placed in a special state...

What Is An OnActivate Event In A DelphiVCL.Application? By Muhammad Azizul Hakim December 7, 2021 The OnActivate or DelphiVCL.Application.OnActivate event occurs when an application becomes active. Write an OnActivate event handler to perform special processing when the application becomes...

Learn About TWinControl For GUI Development With DelphiVCL By Muhammad Azizul Hakim November 4, 2021 TWinControl is the base class for all controls that are wrappers for Microsoft Windows screen objects. TWinControl provides the common functionality for all controls that act as wrappers for...

What Is The Purpose Of DelphiVCL.Application.HideHint? By Muhammad Azizul Hakim October 28, 2021 HideHint or DelphiVCL.Application.HideHint method hides the current hint. Applications rarely, if ever, call HideHint directly. HideHint is used internally to hide the hint window at the...

This Is The DelphiVCL.Application.ModalLevel Property By Muhammad Azizul Hakim October 27, 2021 What is the DelphiVCL.Application.ModalLevel Property? ModalLevel or DelphiVCL.Application.ModalLevel property gives the number of currently open modal forms. ModalLevel is a read-only property...

Learn About The InsertComponent Method And What It Does By Muhammad Azizul Hakim October 26, 2021 InsertComponent or DelphiVCL.Application.InsertComponent method establishes the component as the owner of a specified component. InsertComponent adds the component passed in the AComponent...

Learn About The DelphiVCL.Application.HelpContext Method By Muhammad Azizul Hakim October 25, 2021 Use the HelpContext method or DelphiVCL.Application.HelpContext to display the Help topic specified by the numeric context identifier. Use HelpContext to show the Help topic specified by the...

This Is The DelphiVCL.Application.Minimize Method By Muhammad Azizul Hakim October 22, 2021 Minimize or DelphiVCL.Application.Minimize method is used to shrink an application to the Windows taskbar. Call Minimize to minimize the application. When the user minimizes the application, the...

Learn About DelphiVCL.Application.HandleMessage In Python By Muhammad Azizul Hakim October 21, 2021 Use the HandleMessage method or DelphiVCL.Application.HandleMessage to interrupt the execution of an application while Windows processes a message in the Windows message queue. HandleMessage...

What Is The GetParentComponent Method in DelphiVCL.Application? By Muhammad Azizul Hakim October 20, 2021 The GetParentComponent method or DelphiVCL.Application.GetParentComponent is used to return the containing component. GetParentComponent returns a reference to the component that contains...

All You Need To Know About GetNamePath Method in DelphiVCL.Application By Muhammad Azizul Hakim October 19, 2021 Use the GetNamePath method or DelphiVCL.Application.GetNamePath to return a string used by the Object Inspector. GetNamePath is used to determine the text to display in the Object...

What Does DelphiVCL.Application.HandleException Do? By Muhammad Azizul Hakim October 18, 2021 The HandleException method or DelphiVCL.Application.HandleException is used to provide default handling of exceptions for the application. If an exception passes through all the try blocks in the...

Learn About The Handle Property in DelphiVCL.Application By Muhammad Azizul Hakim October 15, 2021 The Handle property or DelphiVCL.Application.Handle is used to provide access to the underlying Windows screen object for the control. The Handle property returns the window handle for the...