Picture.DebuggerMask

From Xojo Documentation

Property (As Picture )
aPicture.DebuggerMask = newPictureValue
or
PictureValue = aPicture.DebuggerMask

New in 2008r4

Supported for all project types and targets.

Accesses the picture mask if it exists so that the mask can be viewed in the debugger. You can also see in the debugger whether it exists.