> Is there any way to accomplish strong typed programming
> in visual foxpro class that are created with visual foxpro
> class creation tool. For example how can i say a class method
> returns an integer value with "as integer"?

No, VFP is a "late binding" language. Strong typing can not be accomplished. The only thing You can do is use naming conventions and discipline. You can initialize a numeric return-Value that will be altered when the method runs trough properly, and if not, the initial Value is returned.

The following will surely cause problems

procedure ValidFile(tcFile as string) as integer

if vartype(tcFile) # "C"
   return
endif

return iif( file(tcFile), 1, 0)
endproc

as You might get a type logical *or* nurmeric

however this will work

procedure ValidFile(tcFile as string) as integer

local lnRetVal
lnRetVal = -1

if vartype(tcFile) # "C"
   return lnRetVal
endif

lnRetVal =  iif( file(tcFile), 1, 0)
return lnRetVal
endproc