m. is used (or used to be used) to tell VFP that the variable that you are referencing is a memory variable, not an alias.

I don't use m. Unless I really need to.

Below is an example of when m. is required.

e=createobject("custom")
? e.Name    
? m.e.Name 

The second line will crash since VFP will think that you are refering to field "name" in alias "e" as opossed to property "name" in variable "e" The third line addresses this by prefixing the line with m.




>What does the m. prefix mean
>Am i correct in assuming that it is a prefix you put in front of a variable.
>
>When are you supposed to use m.
>
>Tia, victor.