RE: WIN32LIB Error on Open
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Hi Tony,
does this only happen with one specific program or can it happen with any
win32lib program?
This error indicates that a Windows handle (hWnd) which had been associated
with a given win32lib control, is now associated with a different control.
This is not supposed to happen. When win32lib creates a control, it gets
asks Windows for a hWnd for it then sets the GWL_USERDATA for that handle to
the id..
VOID = w32Func( xSetWindowLong, { hWnd, GWL_USERDATA, id } )
This stays in effect until the control is destroyed. Both the ID and the
hWnd can then be reused. But what this error seems to be saying is that two
controls are sharing the same hWnd - which I would have thought is a no-no.
Are you destroying and recreating controls in your program?
-----------
Derek.
-----Original Message-----
From: Tony Steward [mailto:tony at locksdownunder.com]
Sent: Sunday, 28 July 2002 20:53
To: EUforum
Subject: WIN32LIB Error on Open
I think this has been asked before but anyway, why do I sometimes get the
following error when I launch an exw program.
I use win98se and win32lib 57.9 with euohoria 2.3
If required I can send the whole ex.err file.
ex.err report:
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:598 in procedure fShowError()
attempt to divide by 0
pParams = {{103'g',101'e',116't',72'H',97'a',110'n',100'd',108'l',
101'e',58':',84'T',104'h',101'e',32' ',115's',116't',111'o',114'r',101'e',
100'd',32' ',104'h',87'W',110'n',100'd',32' ',102'f',111'o',114'r',32' ',
105'i',100'd',32' ',37'%',100'd',32' ',105'i',115's',32' ',110'n',111'o',
119'w',32' ',97'a',116't',116't',97'a',99'c',104'h',101'e',100'd',32' ',
116't',111'o',32' ',105'i',100'd',32' ',37'%',100'd'},499,{29,53'5'}}
pMode = 2
lErrCode = 499
lResponse = 1
lStyle = 16
and so on
Traced lines leading up to the failure:
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8112 if at then
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8115 heldResource = removeIndex(
at, heldResource )
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8118 end procedure
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8367 end for
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8366 deleteObject( held[i][ResHandle]
)
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8092 if atom(resource) then
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8093 handle = resource
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8100 if isStockResource( handle ) then
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8060 return find(a, vStockResources)
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8104 at = findKey( handle,
heldResource )
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8105 if (at = 0) or
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8107 lRC = w32Func( xDeleteObject,
{handle} )
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8111 at = findKey( handle,
heldResource )
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8112 if at then
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8115 heldResource = removeIndex(
at, heldResource )
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8118 end procedure
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8367 end for
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8370 for i = 1 to length( heldCursor )
do
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8374 heldCursor = {}
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8377 release_all_mem()
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8379 vWinMainState = kFinished
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:8381 end procedure
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:523 end procedure
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:595 if pMode = 2
C:\EUPHORIA\EXINCLUDE\Win32lib.ew:598 abort(1/0) -- Force the ex.err to
be created.
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