RAD Studio |  |

Controlling When Forms Reside in Memory
See Also
Collapse All

By default, Delphi automatically creates the application's main form in memory by including the following code in the application's main entry point:

Copy Code

    Application.CreateForm(TForm1, Form1);

Copy Code

    Application ->CreateForm(__classid(TForm1), &Form1);

This function creates a global variable with the same name as the form. So, every form in an application has an associated global variable. This variable is a pointer to an instance of the form's class and is used to reference the form while the application is running. Any unit that includes the form's unit in its uses clause can access the form via this variable.

All forms created in this way in the project unit appear when the program is invoked and exist in memory for the duration of the application.

See Also

TForm

Copyright(C) 2009 Embarcadero Technologies, Inc. All Rights Reserved.
What do you think about this topic? Send feedback!