X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/77ffb5937e89927b621128789401db8921fe580f..49a143664075d786078a899ae8b3c947330f4df2:/include/wx/dynlib.h

diff --git a/include/wx/dynlib.h b/include/wx/dynlib.h
index 66125b7c28..e163ae2098 100644
--- a/include/wx/dynlib.h
+++ b/include/wx/dynlib.h
@@ -6,7 +6,7 @@
 // Created:     20/07/98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Guilhem Lavaux
-// Licence:     wxWidgets licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_DYNLIB_H__
@@ -131,7 +131,7 @@ public:
     //       to use it polymorphically.
     ~wxDynamicLibrary() { Unload(); }
 
-    // return TRUE if the library was loaded successfully
+    // return true if the library was loaded successfully
     bool IsLoaded() const { return m_handle != 0; }
 
     // load the library with the given name (full or not), return true if ok
@@ -151,6 +151,16 @@ public:
     // Return the raw handle from dlopen and friends.
     wxDllType GetLibHandle() const { return m_handle; }
 
+    // check if the given symbol is present in the library, useful to verify if
+    // a loadable module is our plugin, for example, without provoking error
+    // messages from GetSymbol()
+    bool HasSymbol(const wxString& name) const
+    {
+        bool ok;
+        DoGetSymbol(name, &ok);
+        return ok;
+    }
+
     // resolve a symbol in a loaded DLL, such as a variable or function name.
     // 'name' is the (possibly mangled) name of the symbol. (use extern "C" to
     // export unmangled names)
@@ -186,6 +196,10 @@ public:
 #endif
 
 protected:
+    // the real implementation of GetSymbol()
+    void *DoGetSymbol(const wxString& name, bool *success = 0) const;
+
+
     // platform specific shared lib suffix.
     static const wxChar *ms_dllext;
 
@@ -220,11 +234,11 @@ public:
       which case the library is searched for in all standard locations
       (use GetDllExt() to construct the filename)
 
-      if success pointer is not NULL, it will be filled with TRUE if everything
-      went ok and FALSE otherwise
+      if success pointer is not NULL, it will be filled with true if everything
+      went ok and false otherwise
      */
     static wxDllType LoadLibrary(const wxString& name, bool *success = NULL);
-    
+
     /*
       This function unloads the shared library previously loaded with
       LoadLibrary