AlsaMixer.app/AMixer/AMixer.h

   1 // AMixer.h, Petr Hlavka, 2004
   2
   3 #ifndef AMIXER_H
   4 #define AMIXER_H
   5
   6 #include "AItem.h"
   7
   8 #include <alsa/asoundlib.h>
   9
  10 #define MIXER_ITEMS     3
  11
  12
  13 class AItem;
  14
  15 class AMixer {
  16   private:
  17     snd_mixer_t *mixerHandle;
  18     AItem *mixerItems[MIXER_ITEMS];
  19     char *cardName;
  20
  21     void error(const char *errorString, int errorCode);
  22
  23   public:
  24     AMixer(const char *card);           // ctor
  25     ~AMixer();                          // dtor
  26
  27     bool opened();
  28     void handleEvents();
  29     AItem *attachItem(unsigned int itemNumber, const char *itemName);
  30     bool itemOK(unsigned int itemNumber);
  31     int itemGetVolume(unsigned int itemNumber);
  32     void itemSetVolume(unsigned int itemNumber, unsigned int volume);
  33     int itemIsMuted(unsigned int itemNumber);
  34     void itemToggleMute(unsigned int itemNumber);
  35     void reInit();
  36
  37     static bool mixerElemsChanged();
  38     static bool mixerChanged();
  39     static char* convertIDToCard(const char* cardId);
  40 };
  41
  42 #endif