Viktor,
It also doesn't work on Vista/Win7/2008.
Maybe is about CTRL_LOGOFF_EVENT, CTRL_SHUTDOWN_EVENT that is received only by
services.
But if so is a issue of Vista and Win7/2008, not ours, because the official
documentation nothing says about this, AFAIK.
And no excuse for not correcting the current Harbour behavior, IMHO.
Also in .NET (please see example Visual C++ and Platforms) .-
http://msdn.microsoft.com/en-us/library/system.gc.keepalive%28VS.100%29.aspx
I tested it on XP x64, there there is a window
asking for 'Cancel' and 'End Now', so even here
this method cannot prevent the app to be closed
by user. In any case it's not a SETCANCEL() thing,
Just as DOS Clipper's programs.
but maybe rather it could be the standard GTWIN
behavior (without any extra setting). For sure
it's not a HB_GTI_CLOSABLE setting either. Or,
we just leave it as is.
IMHO are two different targets, things, HB_GTI_CLOSABLE / SETCANCEL.
HB_GTI_CLOSABLE aims to modify the user interface (if possible).
SETCANCEL aims to avoid interruption of the code execution by the user (if
possible).
BTW in te case of GTWVT, I don't think that changing the status of SETCANCEL in response to WM_CLOSE meet the objective of
SETCANCEL.
--
Xavi
El 04/03/2010 20:38, Viktor Szakáts escribió:
It also doesn't work on Vista/Win7/2008.
Did _you_ read the comments in your quoted (now
for the 6th times) article?
I tested it on XP x64, there there is a window
asking for 'Cancel' and 'End Now', so even here
this method cannot prevent the app to be closed
by user. In any case it's not a SETCANCEL() thing,
but maybe rather it could be the standard GTWIN
behavior (without any extra setting). For sure
it's not a HB_GTI_CLOSABLE setting either. Or,
we just leave it as is.
Brgds,
Viktor
On 2010 Mar 4, at 20:21, Xavi wrote:
Sorry I meant SetCancel(.F.)
http://msdn.microsoft.com/en-us/library/ms683242%28VS.85%29.aspx
"
An application-defined function used with the SetConsoleCtrlHandler function. A
console process uses this function to handle control signals received by the
process. When the signal is received, the system creates a new thread in the
process to execute the function.
"
PROCEDURE Main()
SetCancel(.F.)
? "Click [X] Not close windows"
Wait
RETURN
Now it's happening that you are introduced ch = HB_BREAK_FLAG in Inkey Poll,
keyboard buffer.
Wait ends and the main process is finished so the new thread to execute the
function is killed before it can complete their work.
--
Xavi
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