The following tables illustrate the components as they initially appear on each page of the Component palette before any customizing you might choose to perform. For more information, see the "Delphi Component Writer's Guide." Default Component palette pages However, you can reuse a form by making it into a component that can be installed onto the Component palette. For more information, see "Grouping components" on page 47.)īy default, the form component doesn't appear on the Component palette. (There are other Delphi components that can act as containers within a form. This makes it different from most other components, and is what makes it useful to you as an area for designing your application interface. The form is a component that can contain other components. A Timer component, on the other hand, provides a visual representation at design time of the function that timers provide to your application-a means of triggering events at measured intervals-while at run time, the timer measures the intervals, but is not a visible part of your interface. The MainMenu component appears as an icon in your form at design time to give you access to the Menu Designer but at run time, only the menu you've designed is visible, not the component. The MainMenu and Timer components are two examples of nonvisual components. Nonvisual components, on the other hand, are not visible on the form at run time. ![]() ![]() Visual components appear essentially the same in your form at design time as they do at run time. A large part of interface design consists of using these components to customize the forms that make up your application.ĭelphi components include both visual and nonvisual types. The pages of the Component palette display the components Delphi provides to enable you to quickly develop powerful and diverse applications.
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