1. No Valid ID revisited
- Posted by Euman <euman at BELLSOUTH.NET>
Dec 10, 2000
-
Last edited Dec 11, 2000
Hello Win32Lib and Euphoria Guru's
I use Win32Lib and the below procedure to make Controls Visible / inVisible
in my program
and I continue to recieve Code 499
getHandle:The stored hWnd is no longer attached to the ID.
I recieve this error 1 out of 10 runs of my program and this only happens
on startup. my program runs perfectly 9 out 10 times but, I'm shooting for
10 / 10
I coded my procedure (below) to write to file "badID.txt" the Control
that DID NOT have a Valid ID
Well, I ran my program several hundred times and each time
I recieved Code 499 the Control ID that failed was different.
*** Begin Test Procedure ***
-- I create the Controls and a sequence of the Controls i.e: controls =
{int_id0,int_id1,int_id2}
-- This way I can change Control Sequences to either hide or show a set of
Controls
global constant show = 1,
hide = 0
global sequence controls
controls = {}
global procedure Visible(integer SorH)
integer len, fn, handle
object VOID
fn = open("badID.txt","w")
len = length(controls)
for x = 1 to len do
print(fn,controls[x]) -- Print to File all ID's up to The Failed ID
puts(fn, "\n")
flush(fn) -- Dump each Loop
handle = getHandle( controls[x] ) -- Fails on getHandle(inValid id)
VOID = c_func( xShowWindow, { handle , SorH } )
end for
close(fn)
end procedure
*** End ***
Based on this procedure and the Control(ID) Failing being different each
time
Where should I go from here?
Question I posted to myself:
? is Euphoria not assigning a Value in RAM or pointer to the control as they
are created
*I thought about name collision or similar names being a problem so I
gave
all of the controls very unique names..
? is Win32Lib missing Controls and not creating an ID or are the Controls
being Mangled.
* I tested the problem out on Win32Lib versions .50 and .54.5
so as to elliminate the robust memory service Derek Parnell wrote for
.54.5
Failing Controls are Different types of Controls i.e:
Toolbar,TreeView,ListView,PushButtons etc.
Hell, I dont know why...
I would send anyone the code if they could just help me figure this out..
Thanks in Advance
euman at bellsouth.net
2. Re: No Valid ID revisited
Ok, I'll see what I can find out today.
-----
cheers,
Derek Parnell
3. Re: No Valid ID revisited
This is WAY over my head, but I have seen this before (VC++) when I "tried
" to make my on controls from the DLLs . I always get method and properties
confused but it basically came down to init the new control.. not sure
how .. but to make the data "persist" it has to be written and read back
by windows...
good luck..
