From Xojo Documentation

Property (As Picture )
aWindow.Backdrop = newPictureValue
PictureValue = aWindow.Backdrop

Supported for all project types and targets.

Gets or sets the picture object that will be drawn in the window’s background.


You should not assign a new picture to the backdrop of the window when being inside the paint event of that window. This can lead into problems like the backdrop not being painted.


This example sets the backdrop to a jpg image that has been added to the Project. This is in the Open event.

Me.Backdrop = MyPicture