1. Re[2]: getSelf() doesn't work in onOpen
> that happens because Win32lib calls the onOpen routine in createEx,
> rather than in createWindow after it's created it.
The onOpen event is triggered when the window is opened, not
created...
> Thomas Parslow (PatRat) wrote:
>> Hi,
>> Got a problem with a program using win32lib, in the onOpen event when
>> i call getSelf() it always seems to return 0, is there a way this can be
>> fixed?
>>
>> Thomas Parslow (PatRat) ICQ #:26359483
>> Rat Software
>> http://www.rat-software.com/
>> Please leave quoted text in place when replying
Thomas Parslow (PatRat) ICQ #:26359483
Rat Software
http://www.rat-software.com/
Please leave quoted text in place when replying
2. Re[2]: getSelf() doesn't work in onOpen
> you have found a bug.
>
> There are two workarounds.
>
> a) Instead of using onOpen[xx] use setHandler().
>
> setHandler( mywin, w32HOpen, routine_id("mywin_open"))
>
> if you do this the parameters of the handler procedure must be...
> procedure mywin_open(integer self, integer event, sequence parms)
>
> and you don't have to call getSelf() as the 'self' parameter is supplied.
>
> b) Change win32lib.ew.
> Find the line ...
> mainWindow = id
> in the WinMain() procedure and insert after that ...
> pushSelf(id)
>
> Now getSelf() should work.
>
> The reason is that getSelf() was designed to be used by handlers that got
> invoked as a response to a Windows message. But at the time of opening the
> very first window, which is done in WinMain, there has been no Windows
> messages yet so the internal stack of control ids is empty. The fix to
> win32lib.ew just preloads the stack with the initial window's id.
>
> The setHandler() function doesn't use the internal id stack, so that's why
> it works.
>
> ------
> Derek Parnell
> Melbourne, Australia
> "To finish a job quickly, go slower."
Hi,
This didn't fix the problem, it was happening when I was opening
windows using openWindow(). I followed the win32lib code through a bit
and I think I've found the correct place to put the pushSelf() in:
In openWindow() find the lines:
-- action?
invokeHandler(id, w32HOpen, {})
Then put the pushSelf() before those lines:
pushSelf(id)
-- action?
invokeHandler(id, w32HOpen, {})
Seems to work fine now :)
Thomas Parslow (PatRat) ICQ #:26359483
Rat Software
http://www.rat-software.com/
Please leave quoted text in place when replying
