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Text File | 1995-02-07 | 2.7 KB | 108 lines | [TEXT/MPS ] |
- (*
- controlVideo commandList - Control the videodisc. The commandList is a keyword list that
- specifies the specific commands/configuration to be set:
-
- The valid cmds are:
-
- cmd Function
- ——— ——————
- init or reset Reset the player, configure the serial port (the baud rate is set to
- the highest available for the selected player).
-
- eject or reject Eject the disc from the player.
-
- defaultComm Set the default communications parameters for the selected player.
-
- audioOff Turn off both audio channels.
- audio1On Turn on audio channel 1 only.
- audio2On Turn on audio channel 2 only.
- audioOn Turn on both audio channels.
-
- pictureOn/pictureOff Turn on/off the picture.
-
- framesOn/framesOff Turn on/off the display of frame numbers.
-
- frameMode Set player to frame number mode.
- chapterMode Set player to chapter number mode.
- timeMode Set player to time mode.
-
- <other> Any other parameters are passed on to configureSPort. This
- includes port setting and baud rate selection.
-
- To compile and link this file using Macintosh Programmer's Workshop,
-
- pascal -w controlVideo.p
- link -m ENTRYPOINT -o HyperCommands -rt XCMD=8001 -sn Main=controlVideo ∂
- controlVideo.p.o "{MPW}"Libraries:interface.o "{MPW}"PLibraries:PasLib.o
-
- Copyright © 1987,88 Apple Computer, Inc.
-
- 9/87 - Initial coding by Harry R. Chesley.
- 2/88 - Changed to new interface specification by Harry R. Chesley.
- *)
-
- {$R-}
-
- {$S controlVideo } { Segment name must be the same as the command name. }
-
- unit DummyUnit;
-
- interface
-
- uses MemTypes, QuickDraw, OSIntf, ToolIntf, HyperXCmd;
-
- procedure EntryPoint(paramPtr: XCmdPtr);
-
- implementation
-
- type
-
- Str31 = String[31];
-
- procedure controlVideo(paramPtr: XCmdPtr); forward;
-
- procedure EntryPoint(paramPtr: XCmdPtr);
-
- begin
- controlVideo(paramPtr);
- end;
-
- procedure controlVideo(paramPtr: XCmdPtr);
-
- type
- audioModes = (off,oneOn,twoOn,stereo);
-
- var numberOfParms: integer;
- i: integer;
- typeOfVideo: str255;
- parm: str255;
-
- {$I XCmdGlue.inc}
-
- procedure Fail(errMsg: Str255); { set theResult and quit }
- begin
- paramPtr^.returnValue := PasToZero(errMsg);
- exit(controlVideo);
- end;
-
- {$I VideoUtil.inc}
-
- begin
- numberOfParms := paramPtr^.paramCount;
-
- GetStrGlobal('typeOfVideo',typeOfVideo);
-
- { For each parameter... }
- for i := 1 to numberOfParms do
- begin
- { Get the parameter. }
- GetStrParm(i,parm);
- { Call the selected driver. }
- if typeOfVideo <> '' then EvalAndDispose(Concat('vidDrvr',typeOfVideo,'("control",',parm,')'))
- { If there is no selected driver, pass it on to the serial port routines. }
- else SendCardMessage(Concat('configureSPort ',parm));
- end;
- end;
-
- end.
-