Eric Pouech : winhlp32: Better protect macros against not finding a help file.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: d3fd3d73be8c9da238fba091f381104d49aa5a46
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=d3fd3d73be8c9da238fba091f3...

Author: Eric Pouech 
Date:   Sun Jul 31 08:53:34 2011 +0200

winhlp32: Better protect macros against not finding a help file.

---

programs/winhlp32/macro.c |   17 +++++++++--------
 1 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/programs/winhlp32/macro.c b/programs/winhlp32/macro.c
index 7f3328f..0a1642c 100644
--- a/programs/winhlp32/macro.c
+++ b/programs/winhlp32/macro.c
@@ -575,11 +575,11 @@ void CALLBACK MACRO_JumpContext(LPCSTR lpszPath, LPCSTR lpszWindow, LONG context
     HLPFILE*    hlpfile;

WINE_TRACE("("%s", "%s", %d)\n", lpszPath, lpszWindow, context);
-    hlpfile = WINHELP_LookupHelpFile(lpszPath);
-    /* Some madness: what user calls 'context', hlpfile calls 'map' */
-    WINHELP_OpenHelpWindow(HLPFILE_PageByMap, hlpfile, context,
-                           WINHELP_GetWindowInfo(hlpfile, lpszWindow),
-                           SW_NORMAL);
+    if ((hlpfile = WINHELP_LookupHelpFile(lpszPath)))
+        /* Some madness: what user calls 'context', hlpfile calls 'map' */
+        WINHELP_OpenHelpWindow(HLPFILE_PageByMap, hlpfile, context,
+                               WINHELP_GetWindowInfo(hlpfile, lpszWindow),
+                               SW_NORMAL);
 }

void CALLBACK MACRO_JumpHash(LPCSTR lpszPath, LPCSTR lpszWindow, LONG lHash)
@@ -591,9 +591,10 @@ void CALLBACK MACRO_JumpHash(LPCSTR lpszPath, LPCSTR lpszWindow, LONG lHash)
         hlpfile = MACRO_CurrentWindow()->page->file;
     else
         hlpfile = WINHELP_LookupHelpFile(lpszPath);
-    WINHELP_OpenHelpWindow(HLPFILE_PageByHash, hlpfile, lHash,
-                           WINHELP_GetWindowInfo(hlpfile, lpszWindow),
-                           SW_NORMAL);
+    if (hlpfile)
+        WINHELP_OpenHelpWindow(HLPFILE_PageByHash, hlpfile, lHash,
+                               WINHELP_GetWindowInfo(hlpfile, lpszWindow),
+                               SW_NORMAL);
 }

static void CALLBACK MACRO_JumpHelpOn(void)