DesktopCanvas.Transparent
From Xojo Documentation
Property (As Boolean )
aDesktopCanvas.Transparent = newBooleanValue
or
BooleanValue = aDesktopCanvas.Transparent
New in 2021r3
Supported for all project types and targets.
or
BooleanValue = aDesktopCanvas.Transparent
New in 2021r3
Supported for all project types and targets.
If True, the background color shows through to the DesktopCanvas; if False, the DesktopCanvas is opaque. The default is True. On Mac the DesktopCanvas is always transparent so this property is ignored.
Notes
DesktopCanvases by default are transparent controls, which means the background color shows through. The Transparent property can be set (at design time or runtime) to turn this off/on as needed. An opaque DesktopCanvas flickers less on Windows and on Linux child controls on DesktopCanvases are clipped properly. On Mac, the DesktopCanvas is always transparent.
Windows
Controls placed behind a DesktopCanvas, regardless of the Transparent setting, will not be visible through the DesktopCanvas.
Sample Code
This code turns Transparent off: