topic-18598

Posts: 6984

Joined: Fri Oct 07, 2005 07:07 PM

oSefl vs. ::
Posted: Mon Apr 19, 2010 10:18 AM

What is the difference between oSefl and :: ?
Can someone please explain why oSelf is working and :: fails?

 local oSelf             := SELF
@ 10,10 BTNBMP oBtn OF ::oPanArt_WG;
           SIZE 160, 80 ;
               FONT oFnt ; 
            ACTION ( oSelf:oPanArt_WG:hide() ) NOBORDER TRANSPARENT

is working and

Code (fw): Select all Collapse

ACTION ( ::oPanArt_WG:hide() ) NOBORDER TRANSPARENT

fails.

Thanks in advance
Otto

Antonio Linares

Posts: 44162

Joined: Thu Oct 06, 2005 05:47 PM

Re: oSefl vs. ::
Posted: Mon Apr 19, 2010 10:24 AM

Otto,

When we use: ... BTNBMP ... ACTION ...

ACTION ... gets preprocessed into:

[{|Self|<uAction>}]

But that "Self" will be provided to the codeblock as a parameter and it is not ::

So when we do local oSelf := Self
and then we use oSelf from the codeblock, we are using oSelf and not the provided parameter self

Little confusing but its simple :-)

regards, saludos

Antonio Linares
www.fivetechsoft.com

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