Re: Approaching LyX 1.6.4 [status update #2]

[Enrico Forestieri]

On Wed, Aug 12, 2009 at 11:00:07AM +0200, Vincent van Ravesteijn - TNW wrote:

> >> Please tell me if there are further issues to be considered.
> >
> >If you close Windows Vista, LyX won't ask you to save dirty buffers
> >(dataloss).
> 
> I couldn't solve it. For some reason, I don't get the WM_QUERYENDSESSION and
> WM_ENDSESSION messages from Windows.

The attached patch works for me. When you logoff or close the console,
emergency files are created, so you don't lose anything.

-- 
Enrico

Index: src/LyX.cpp
===================================================================
--- src/LyX.cpp (revision 30988)
+++ src/LyX.cpp (working copy)
@@ -71,6 +71,9 @@
 #include <stdlib.h>
 #include <string>
 #include <vector>
+#if defined(_WIN32) || defined(__CYGWIN__)
+#include <windows.h>
+#endif
 
 using namespace std;
 using namespace lyx::support;
@@ -650,6 +653,18 @@ static void error_handler(int err_sig)
        exit(0);
 }
 
+
+#if defined(_WIN32) || defined(__CYGWIN__)
+BOOL terminate_handler(DWORD event)
+{
+       if (event == CTRL_CLOSE_EVENT
+           || event == CTRL_LOGOFF_EVENT
+           || event == CTRL_SHUTDOWN_EVENT)
+               raise(SIGTERM);
+       return FALSE;
+}
+#endif
+
 }
 
 
@@ -671,6 +686,10 @@ bool LyX::init()
        signal(SIGINT, error_handler);
        signal(SIGTERM, error_handler);
        // SIGPIPE can be safely ignored.
+#if defined(_WIN32) || defined(__CYGWIN__)
+       // On Windows we have also to catch logging off or closing the console.
+       SetConsoleCtrlHandler((PHANDLER_ROUTINE)terminate_handler, TRUE);
+#endif
 
        lyxrc.tempdir_path = package().temp_dir().absFilename();
        lyxrc.document_path = package().document_dir().absFilename();