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- { $Header: G:/delphi/midi/vcs/mididefs.pas 1.1 30 Apr 1996 19:01:12 DAVEC $ }
-
- { Written by David Churcher <dchurcher@cix.compulink.co.uk>,
- released to the public domain. }
-
-
- { Common definitions used by DELPHMID.DPR and the MIDI components.
- This must be a separate unit to prevent large chunks of the VCL being
- linked into the DLL. }
- unit Mididefs;
-
- interface
-
- uses WinProcs, WinTypes, MMsystem, Circbuf;
-
- type
-
- {-------------------------------------------------------------------}
- { This is the information about the control that must be accessed by
- the MIDI input callback function in the DLL at interrupt time }
- PMidiCtlInfo = ^TMidiCtlInfo;
- TMidiCtlInfo = record
- hMem: THandle; { Memory handle for this record }
- PBuffer: PCircularBuffer; { Pointer to the MIDI input data buffer }
- hWindow: HWnd; { Control's window handle }
- SysexOnly: Boolean; { Only process System Exclusive input }
- end;
-
- { Information for the output timer callback function, also required at
- interrupt time. }
- PMidiOutTimerInfo = ^TMidiOutTimerInfo;
- TMidiOutTimerInfo = record
- hMem: THandle; { Memory handle for this record }
- PBuffer: PCircularBuffer; { Pointer to MIDI output data buffer }
- hWindow: HWnd; { Control's window handle }
- TimeToNextEvent: DWORD; { Delay to next event after timer set }
- MIDIHandle: HMidiOut; { MIDI handle to send output to
- (copy of component's FMidiHandle property) }
- PeriodMin: Word; { Multimedia timer minimum period supported }
- PeriodMax: Word; { Multimedia timer maximum period supported }
- TimerId: Word; { Multimedia timer ID of current event }
- end;
-
- implementation
-
-
- end.
-