Merlin’s Delphi Forge

There are two ways to determine the screen’s height and width.
1) Use the global Screen variable.

uses
Forms;
…
Screen.Height { Screen height in pixels }
Screen.Width { Screen width in pixels }
…
2) Use the Windows API GetSystemMetrics() function. This function can be useful in applications that don’t use the VCL like [...]

When creating a text editor (or any other kind of program that uses the Clipboard you always insert code to determine if there is anything to copy or cut and to update the menus. Well, you should also do this for the paste function. The whole idea is based on Windows messages and is very [...]