DelphiDelphiVCLPythonPython GUIWindows

Create a ComboBox using DelphiVCL.ComboBox

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DelphiVCL.ComboBox combines an edit box with a scrollable list. A ComboBox component is an edit box with a scrollable drop-down list attached to it. Users can select an item from the list or type directly into the edit box.

Note: The width of the button in a TComboBox is equal to the width that Windows uses for scrollbars. This width depends on the color scheme that the user has chosen (by right-clicking the desktop, selecting Properties, and choosing Appearance). If you carefully size your combo box so all the text is visible, then a user running under a different color scheme may find that the text is obscured by the button. One solution is to set the scrollbar wide when developing the application. Most color schemes use a scrollbar that is at most 21 pixels wide.

We can browse all the properties, methods, and built-in properties of the DelphiVCL.ComboBox using dir() command:

See the responses in command prompt:


Here is the working example of the implementation of DelphiVCL.ComboBox:

To see the result, let’s run the complete script:

The result:



Check out DelphiVCL which easily allows you to build GUIs for Windows using Python.

Watch this comprehensive introduction to Python GUI Development with DelphiVCL library video by Jim McKeeth:

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