Re: How does VFP locate class libraries during runtime?
- From: "Fred Taylor" <ftaylor@xxxxxxxx!REMOVE>
- Date: Fri, 29 Apr 2005 08:14:17 -0700
Exactly as I said, with one difference.
If your class was defined in a .PRG, the search path will include the method
you've specified first, looking for the DEFINE CLASS. Then the SET CLASSLIB
order kicks in.
--
Fred
Microsoft Visual FoxPro MVP
"Peter" <Peter@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:4E9731B1-DF42-426C-ACA2-E601E7AC9B7E@xxxxxxxxxxxxxxxx
> Hi Fred,
>
> The search order I'm referring to is something like this:
>
> When you issue the DO command with a procedure name, Visual FoxPro
> searches
> for the procedure in the following order:
>
> 1. The file containing the DO command.
> 2. The current database.
> 3. Procedure files opened with SET PROCEDURE.
> For more information, see SET PROCEDURE Command.
> 4. Program files in the execution chain.
> Visual FoxPro searches program files in order from the most recently
> executed program to the first program executed.
> 5. A standalone program file.
>
> If a matching program file is found, Visual FoxPro executes the program.
> Otherwise, Visual FoxPro generates an error message.
>
> To execute a procedure in a specific file, include the IN clause in the DO
> command.
>
>
>
> "Fred Taylor" wrote:
>
>> Sure. When you do SET CLASSLIB TO, you either provide a list of .VCX
>> files,
>> or you can append to the list by using the ADDITIVE keyword. The order
>> they
>> appear in the list is the order they're searched in.
>>
>> --
>> Fred
>> Microsoft Visual FoxPro MVP
>>
>>
>> "Peter" <Peter@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
>> news:7685DA37-F943-480E-AE58-598C57E071C4@xxxxxxxxxxxxxxxx
>> > Hi Fred,
>> >
>> > Is there a search order for vcx like the search order for procedure?
>> >
>> > Thanks,
>> >
>> > Peter
>> >
>> > "Fred Taylor" wrote:
>> >
>> >> You can use SET CLASSLIB TO command to control the order. and it will
>> >> also
>> >> make a difference if the form is external to the .EXE or not. If it's
>> >> internal, it use what's in the .EXE, otherwise it will use the path.
>> >>
>> >> --
>> >> Fred
>> >> Microsoft Visual FoxPro MVP
>> >>
>> >>
>> >> "Peter" <Peter@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
>> >> news:B51F6790-1283-4852-9D99-8CF3BCBB4F4D@xxxxxxxxxxxxxxxx
>> >> >I have a question about how controls locate their class libraries
>> >> >during
>> >> > runtime. If I have 2 exes (main.exe and module.exe) which use
>> >> > custom.vcx
>> >> > but
>> >> > the two custom.vcxs are not the same, how does VFP know which
>> >> > custom.vcx
>> >> > to
>> >> > use when running a form which has controls from custom.vcx of the
>> >> > module.exe?
>> >> >
>> >> > 1. Does it matter whether the form is included or excluded in the
>> >> > project?
>> >> > 2. Can we control how VFP locates the class libraries?
>> >> >
>> >> >
>> >> > Thanks,
>> >> >
>> >>
>> >>
>> >>
>>
>>
>>
.
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