ScummVM API documentation
null.h
1 /* ScummVM - Graphic Adventure Engine
2  *
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5  * file distributed with this source distribution.
6  *
7  * This program is free software: you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
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10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program. If not, see <http://www.gnu.org/licenses/>.
19  *
20  */
21 
22 #ifndef AUDIO_NULL_H
23 #define AUDIO_NULL_H
24 
25 #include "audio/musicplugin.h"
26 #include "audio/mpu401.h"
27 
28 /* NULL driver */
30 public:
31  int open() { return 0; }
32  bool isOpen() const { return true; }
33  void send(uint32 b) { }
34 };
35 
36 
37 // Plugin interface
38 
40 public:
41  virtual const char *getName() const;
42 
43  virtual const char *getId() const {
44  return "null";
45  }
46 
47  virtual MusicDevices getDevices() const;
48  Common::Error createInstance(MidiDriver **mididriver, MidiDriver::DeviceHandle = 0) const;
49 };
50 
51 #endif
virtual const char * getId() const
Definition: null.h:43
Definition: error.h:84
uint32 DeviceHandle
Definition: mididrv.h:318
Definition: list.h:44
Definition: mididrv.h:309
Definition: null.h:39
Definition: musicplugin.h:85
Definition: null.h:29
int open()
Definition: null.h:31
bool isOpen() const
Definition: null.h:32
void send(uint32 b)
Definition: null.h:33
Definition: mpu401.h:67