Update WinMME driver for 64 bits compilation.

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@4289 0c269be4-1314-0410-8aa9-9f06e86f4224

common/JackControlAPI.cpp

@@ -1236,13 +1236,14 @@ EXPORT bool jackctl_server_remove_slave(jackctl_server * server_ptr, jackctl_dri
         if (server_ptr->engine->IsRunning()) {
             jack_error("cannot remove a slave from a running server");
             return false;
-        } else {
-            JackDriverInfo* info = (JackDriverInfo*)driver_ptr->infos->data;
-            if (info) {
+        } else {
+            if (driver_ptr->infos) {
+                JackDriverInfo* info = (JackDriverInfo*)driver_ptr->infos->data;
+                assert(info);
                 driver_ptr->infos = jack_slist_remove(driver_ptr->infos, info);
                 server_ptr->engine->RemoveSlave(info);
                 delete info;
-                return true;
+                return true;
             } else {
                 return false;
             }

windows/winmme/JackWinMMEInputPort.cpp

@@ -55,8 +55,8 @@ JackWinMMEInputPort::JackWinMMEInputPort(const char *alias_name,
     std::auto_ptr<JackMidiBufferWriteQueue> write_queue_ptr(write_queue);
     sysex_buffer = new jack_midi_data_t[max_bytes];
     char error_message[MAXERRORLENGTH];
-    MMRESULT result = midiInOpen(&handle, index, (DWORD)HandleMidiInputEvent,
-                                 (DWORD)this,
+    MMRESULT result = midiInOpen(&handle, index, (DWORD_PTR)HandleMidiInputEvent,
+                                 (DWORD_PTR)this,
                                  CALLBACK_FUNCTION | MIDI_IO_STATUS);
     if (result != MMSYSERR_NOERROR) {
         GetInErrorString(result, error_message);

windows/winmme/JackWinMMEOutputPort.cpp

@@ -55,8 +55,8 @@ JackWinMMEOutputPort::JackWinMMEOutputPort(const char *alias_name,
     thread = new JackThread(this);
     std::auto_ptr<JackThread> thread_ptr(thread);
     char error_message[MAXERRORLENGTH];
-    MMRESULT result = midiOutOpen(&handle, index, (DWORD)HandleMessageEvent,
-                                  (DWORD)this, CALLBACK_FUNCTION);
+    MMRESULT result = midiOutOpen(&handle, index, (DWORD_PTR)HandleMessageEvent,
+                                  (DWORD_PTR)this, CALLBACK_FUNCTION);
     if (result != MMSYSERR_NOERROR) {
         GetOutErrorString(result, error_message);
         goto raise_exception;