I'm guessing this is a known issue but I've just tried to compile this as 64-bit on a Mac (OS 10.13.3) running Xojo 2017 R3 and I get the following errors:
Linking Executable
Undefined symbols for architecture x86_64: "_SetDragImageWithCGImage", referenced from:_DragImage.$SetImage%%o<DragItem>o<Picture> in DragImage.o
ld: symbol(s) not found for architecture x86_64
Linking Executable
Undefined symbols for architecture x86_64: "_SetDragImageWithCGImage", referenced from:"_QDBeginCGContext", referenced from:
ld: symbol(s) not found for architecture x86_64
Linking Executable
Undefined symbols for architecture x86_64: "_SetDragImageWithCGImage", referenced from:_DragImage.NewCGImage%p%o<Picture> in DragImage.o
ld: symbol(s) not found for architecture x86_64
Linking Executable
Undefined symbols for architecture x86_64: "_SetDragImageWithCGImage", referenced from:"_QDEndCGContext", referenced from:
ld: symbol(s) not found for architecture x86_64
Linking Executable
Undefined symbols for architecture x86_64: "_SetDragImageWithCGImage", referenced from:_DragImage.NewCGImage%p%o<Picture> in DragImage.o
ld: symbol(s) not found for architecture x86_64
I'm guessing this is a known issue but I've just tried to compile this as 64-bit on a Mac (OS 10.13.3) running Xojo 2017 R3 and I get the following errors: