DelphiDelphiVCLPythonPython GUIWindows

OnModalBegin: DelphiVCL.Application Event that Occurs when a Modal Form is Opened

OnModalBegin or DelphiVCL.Application.ModalBegin occurs when a modal form is opened. Write an OnModalBegin event handler to perform special processing when a modal form is opened.   How to examine the properties, methods, and built-in properties of the DelphiVCL.Application.OnModalBegin? Let’s browse all the properties, methods, and built-in properties of the DelphiVCL.Application.OnModalBegin…
Read more
DelphiDelphiVCLPythonPython GUIWindows

This Is How BringToFront Works In Windows App Development

For Windows app development the BringToFront method or DelphiVCL.Application.BringToFront sets the last active window as the topmost window on the desktop above all other applications. Use BringToFront to find the window owned by the MainForm that was last active and bring it to the foreground. BringToFront also tests to see if the window is visible and enabled before making it the topmost…
Read more
DelphiDelphiVCLPythonPython GUIWindows

What Is The DelphiVCL Application.CleanupInstance Method?

The DelphiVCL CleanupInstance method or DelphiVCL.Application.CleanupInstance is used to perform finalization on long strings, variants, and interface variables within a class. Do not call CleanupInstance directly. CleanupInstance is called automatically when the object instance is destroyed. CleanupInstance releases all long strings and variants. It sets long strings to empty and variants…
Read more
DelphiDelphiVCLPythonPython GUIWindows

What Is A DelphiVCL.Timer In The DelphiVCL Windows UI Toolkit

As a part of the DelphiVCL Windows UI Toolkit the DelphiVCL.Timer or TTimer is used to encapsulate the Windows API timer functions. TTimer is used to simplify calling the Windows API timer functions SetTimer and KillTimer, and to simplify processing the WM_TIMER messages. Use one timer component for each timer in the application. The execution of the timer occurs through its OnTimer event.
Read more