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Delphi Cookbook by Daniele Teti

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Using the owner's draw combos and listboxes

Many things are organized in a list. Lists are useful when you have to show items or when your user has to choose among a set of possible options. Usually, standard lists are flat, but sometimes you need to transmit more information in addition to a list of items. Let's think about when you go to choose a font in an advanced text editor such as Microsoft Word or OpenOffice.org. Having the name of the font drawn in the font style itself helps users to make a faster and more reasoned choice. In this recipe, we'll see how to make listboxes more useful. The code is perfectly valid also for a TComboBox.

Getting ready

As we saw in the Customizing TDBGrid recipe, many VCL controls are able to delegate their drawing, ...

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