Overriding System Class Defaults
From Xojo Documentation
This feature allows you to change the default property values used by built-in Xojo classes. For example, you could change the default Windows width and height from 600x400 to 800x600.
These are the steps to override class default values:
- Create a file named <ClassName>.defaults in either <SharedDocuments>/Xojo/Overrides or <Documents>/Xojo/Overrides
- The file contains simple key=value pairs, where:
- The key is the property name on the class
- The value is everything after the =
- Integer properties can support different values by OS with syntax like this:
- macOS uses 20, Windows uses 30, Linux uses 40
- String properties do not have a way to include an end-of-line
For example, a file (named Window.defaults and located in ~/Documents/Xojo/Overrides) with the following key/value pairs changes the default width and height of a Window from 600/400 to 800/600:
After restarting Xojo, when you add any new Windows to a desktop project, they will have a default width of 800 and height of 600.
CheckBox state can be set with 'State=<value>', where value = 0-Unchecked, 1-Checked, 2-Indeterminate (the values of the Inspector Popup menu for this field).