Re: gnuplot.exe hangs instead of exiting on Windows 7

[Tatsuro M. <tma...@ya...>]

Hello


I have carried out gdb trace.

#******************************
$ gdb src/gnuplot
GNU gdb (GDB) 7.2
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "mingw32".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from e:\usr\Tatsu\mingwhome\gnuplotcvs\gnuplot/src/gnuplot.exe...done.
(gdb) break WinExit
Breakpoint 1 at 0x532aa9: file win/winmain.c, line 157.
(gdb) run
Starting program: e:\usr\Tatsu\mingwhome\gnuplotcvs\gnuplot/src/gnuplot.exe
[New Thread 1284.0x1228]

        G N U P L O T
        Version 4.5 patchlevel 0
        last modified March 2011
        System: MS-Windows 32 bit

        Copyright (C) 1986-1993, 1998, 2004, 2007-2010
        Thomas Williams, Colin Kelley and many others

        gnuplot home:     http://www.gnuplot.info
        mailing list:     gnu...@li...
        faq, bugs, etc:   type "help seeking-assistance"
        immediate help:   type "help"
        plot window:      hit 'h'

Terminal type set to 'wxt'
gnuplot> exit

Breakpoint 1, WinExit () at win/winmain.c:157
157             term_reset();
(gdb) step
term_reset () at term.c:859
859         paused_for_mouse = 0;
(gdb) step
862         if (!term_initialised)
(gdb) step
863             return;
(gdb) step
882     }
(gdb) step
WinExit () at win/winmain.c:162
162             if (graphwin.hWndGraph && IsWindow(graphwin.hWndGraph))
(gdb) step
168             HtmlHelp(NULL, NULL, HH_CLOSE_ALL, (DWORD_PTR)NULL);
(gdb) step
[New Thread 1284.0x113c]
(HtmlHelp seems to hang here)

******************************
However
At the initial prompt
I carried out plot and close graph windows 
gnuplot> plot sin(x)
[New Thread 2124.0x1038]
After that

gnuplot> exit

Breakpoint 1, WinExit () at win/winmain.c:157
157             term_reset();
(gdb) run
The program being debugged has been started already.
Start it from the beginning? (y or n) n
Program not restarted.
(gdb) step
term_reset () at term.c:859
859         paused_for_mouse = 0;
(gdb) step
862         if (!term_initialised)
(gdb) step
863             return;
(gdb) step
882     }
(gdb) step
WinExit () at win/winmain.c:162
162             if (graphwin.hWndGraph && IsWindow(graphwin.hWndGraph))
(gdb) step
168             HtmlHelp(NULL, NULL, HH_CLOSE_ALL, (DWORD_PTR)NULL);
(gdb) step
[New Thread 2124.0xe78]
[New Thread 2124.0x5d4]
[New Thread 2124.0xe6c]
[New Thread 2124.0xbec]
185     }

This time HtmlHelp seemed to work correctly.

Perhaps something is wrong with initialization gnuplot.exe + HtmlHelp on windows 7.
A dummy plot? routine may avoid this fault as a temporal treatment. (It is of course curious method. )


Regards

Tatsuro
--- Tatsuro MATSUOKA wrote:

> 
> Hello
> --- Bastian M将」rkisch wrote:
> 
> > Hhhm. It shouldn't be. MSDN says:
> > 
> > "While Microsoft develops future Help technologies, we encourage Help authors 
> > to continue using HTML Help 1.4. HTML Help 1.4 is included in Windows篠7."
> > 
> 
> I have downloaded windows sdk for windows 7.  I found the htmlhelp.h and Htmlhelp.Lib in
> C:\Program
> Files\Microsoft SDKs\Windows\v7.1\Include and C:\Program Files\Microsoft SDKs\Windows\v7.1\Lib,
> respectively.
> 
> I have tried to use htmlhelp.h and Htmlhelp.Lib in C:\Program Files\Microsoft SDKs\Windows\v7.1
> but
> they cannot be used as they are for current gnuplot cvs code on mingw.
> 
> As a reference I show the diff of htmlhelp.h between in the html help workshop and sdk :
> 
> *******************************
> --- htmlhelp.orig.h	1999-07-14 05:02:22 +0900
> +++ htmlhelp.sdk.h	2010-04-19 20:44:16 +0900
> @@ -17,10 +17,12 @@
>  extern "C" {
>  #endif  // __cplusplus
>  
> +#if _MSC_VER < 1200
>  // Defines for Win64
>  #ifndef _WIN64
>  #define DWORD_PTR DWORD
>  #endif
> +#endif
>  
>  // Commands to pass to HtmlHelp()
>  
> @@ -53,8 +55,10 @@
>  #define HH_SET_EXCLUSIVE_FILTER 0x0019  // set exclusive filtering method for untyped topics to
> be
> excluded from display
>  #define HH_INITIALIZE            0x001C  // Initializes the help system.
>  #define HH_UNINITIALIZE          0x001D  // Uninitializes the help system.
> +#define HH_SET_QUERYSERVICE     0x001E  // Set the Host IQueryService interface
>  #define HH_PRETRANSLATEMESSAGE  0x00fd  // Pumps messages. (NULL, NULL, MSG*). 
>  #define HH_SET_GLOBAL_PROPERTY  0x00fc  // Set a global property. (NULL, NULL, HH_GPROP)
> +#define HH_SAFE_DISPLAY_TOPIC   0x0020  // private addition to the interface for
> InternetExplorer.
>  
>  #define HHWIN_PROP_TAB_AUTOHIDESHOW (1 << 0)    // Automatically hide/show tri-pane window
>  #define HHWIN_PROP_ONTOP            (1 << 1)    // Top-most window
> @@ -364,19 +368,19 @@
>  HWND
>  WINAPI
>  HtmlHelpA(
> -    HWND hwndCaller,
> -    LPCSTR pszFile,
> -    UINT uCommand,
> -    DWORD_PTR dwData
> +    __in_opt HWND hwndCaller,
> +    __in LPCSTR pszFile,
> +    __in UINT uCommand,
> +    __in DWORD_PTR dwData
>      );
>  
>  HWND
>  WINAPI
>  HtmlHelpW(
> -    HWND hwndCaller,
> -    LPCWSTR pszFile,
> -    UINT uCommand,
> -    DWORD_PTR dwData
> +    __in_opt HWND hwndCaller,
> +    __in LPCWSTR pszFile,
> +    __in UINT uCommand,
> +    __in DWORD_PTR dwData
>      );
>  #ifdef UNICODE
>  #define HtmlHelp  HtmlHelpW
> @@ -424,3 +428,4 @@
>  #endif // __cplusplus
>  
>  #endif // __HTMLHELP_H__
> +
> ****************************************
> 
> Regards
> 
> Tatsuro
>