Window.HasBackgroundColor
From Xojo Documentation
Property (As Boolean )
aWindow.HasBackgroundColor = newBooleanValue
or
BooleanValue = aWindow.HasBackgroundColor
New in 2019r2
Supported for all project types and targets.
or
BooleanValue = aWindow.HasBackgroundColor
New in 2019r2
Supported for all project types and targets.
If True, the background color of the window is set to the value of the BackgroundColor property.
Notes
This property must be set in order for the value of the BackgroundColor property to be applied to the window.
Example
This example sets the HasBackgroundColor property and sets the value of the BackgroundColor property.