MidiGetSlotInfos

Gives information about a slot: it includes the slot name, the slot direction and its connection set to the MidiShare ports

    Boolean MidiGetSlotInfos (SlotRefNum ref, TSlotInfos * infos);

ref

a 32-bit integer, the slot reference number.

infos

a pointer to a TSlotInfos structure to be filled with the slot characteristics.

typedef struct TSlotInfos {
        SlotName       name;
        SlotDirection  direction;    
        char           cnx[32];
        long           reserved[2]; /* reserved for future use */
} TSlotInfos;
  

Fields:

• name : contains the slot name.
• direction : indicates the slot direction, defined like below
• cnx : a 256 bits field to indicates the 256 ports connections state.

Types:

typedef enum {  MIDIInputSlot=1, 
                MIDIOutputSlot,
                MIDIInputOutputSlot } SlotDirection;

The result is a Boolean value which indicates whether MidiShare has been able to get information about the slot or not.

Print information about a driver slots.


void PrintSlotsInfos(short driverRef)
{
    TDriverInfos dInfos; TSlotInfos sInfos;
    
    if (MidiGetDriverInfos (driverRef, &dInfos)) {
      short     i, j; SlotRefNum ref;
        printf( "List of %s slots :\n", dInfos.name);
        for( i = 1; i <= dInfos.slots; i++ )
        {
            ref = MidiGetIndSlot(driverRef, i);
            if (MidiGetSlotInfos (ref, &sInfos)) {
                printf("\n%i : %s : ", ref, sInfos.name);
                switch (sInfos.direction) 
                {
                    case MIDIInputSlot:
                        printf("input slot");
                        break;
                    case MIDIOutputSlot:
                        printf("output slot");
                        break;
                    case MIDIInputOutputSlot:
                        printf("input/output slot");
                        break;
                }
                printf(" : connected ports : ");
                for (j = 0; j < 256; j++) {
                    if (IsAcceptedBit (dInfos.cnx, i))
                        printf("%d ", i);
                }
            }
        }
    }
}