Command messages are used by the command message interface and specified with mciSendCommand. Most command messages have corresponding string commands that are used by the command string interface and specified with mciSendString. Command messages are sent either to a logical device or to the system. The following table lists the command messages sent to devices. Commands that cause asynchronous responses to be generated, such as cue point and position advise, can be called using the appropriate string command; however, their responses are returned to window procedures.
旼컴컴컴컴컴컴컴컴컴컴컴컫컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �Command Messages � � �Supported by All Devices� � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_OPEN 쿐stablishes a specific instance of a� � 쿺ultimedia device or file. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_GETDEVCAPS 쿒ets the capabilities of a device. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_INFO 쿒ets textual information from the � � 쿭evice. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_STATUS 쿒ets the current status of the � � 쿭evice. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_CLOSE 쿎loses the device. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �Device Setup Command � � �Messages � � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_SET 쿎hanges the configuration of the � � 쿭evice. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_CONNECTOR 쿐nables, disables, or queries the � � 퀂tate of a connector. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �Playback and Recording � � �Command Messages � � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_CUE 쿛rerolls a device for playing or � � 퀁ecording. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_SEEK 쿞eeks to a specified position in the� � 쿯ile. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_PLAY 쿍egins transmitting output data. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_RECORD 쿍egins recording data from the � � 퀂pecified position. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_PAUSE 쿞uspends the playing or recording � � 쿽peration. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_RESUME 쿝esumes the playing or recording � � 쿽peration. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_STOP 쿞tops the playing or recording � � 쿽peration. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_LOAD 쿗oads a data element into a media � � 쿭evice. An example of a data element� � 쿶s a waveform file. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_SAVE 쿞aves the current file to disk. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �Synchronization Command � � �Messages � � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_SET_CUEPOINT 쿞ets run-time cue points. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_SET_POSITION_ADVISE 쿌dvises the application when time � � 쿮lapses or position changes. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_SET_SYNC_OFFSET 쿍iases MCI_PLAY starting positions � � 쿪nd MCI_SEEK target positions for � � 쿲roup operations. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �Device-Specific Command � � �Messages � � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_CAPTURE 쿎aptures the current video image and� � 퀂tores it as an image device � � 쿮lement. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_ESCAPE 쿞ends a custom message directly to � � 퀃he media driver. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_GETIMAGEBUFFER 쿒ets the contents of the capture � � 퀆ideo buffer or the current movie � � 쿯rame. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_GETTOC 쿒ets a contents structure for the � � 쿬urrently loaded CD-ROM disc. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_PUT 쿞ets the source and destination � � 퀁ectangles for the transformation of� � 퀃he video image. It also sets the � � 퀂ize and position of the default � � 퀆ideo. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_REWIND 쿞eeks the media to the beginning � � 쿾oint. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_SETTUNER 쿎auses the digital video MCD to � � 쿬hange the frequency the tuner � � 쿭evice is tuned to. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_SPIN 쿞pins the videodisc player up or � � 쿭own. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_STEP 쿌dvances or backs up the videodisc � � 쿾layer one or more frames. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_WHERE 쿝eturns the source and destination � � 퀁ectangles set by MCI_PUT. It also � � 퀁eturns the size and position of the� � 퀆ideo window. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_WINDOW 쿞pecifies the window in which to � � 쿭isplay video output, and controls � � 퀃he visibility of the default video � � 퀇indow. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �Editing Command Messages� � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_COPY 쿎opies specified data range into � � 쿬lipboard or buffer. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_CUT 쿝emoves specified data range and � � �places it into clipboard or buffer. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_DELETE 쿏eletes specified data range. � � 쿎lipboard or buffer is not used. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_PASTE 쿏eletes selected data range if � � 쿭ifference between FROM and TO is � � 쿺ore than zero, then inserts data � � 쿯rom buffer or clipboard. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_REDO 쿝everses previous MCI_UNDO command. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_UNDO 쿎ancels previous RECORD, CUT, PASTE,� � 쿽r DELETE. � 읕컴컴컴컴컴컴컴컴컴컴컴컨컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴�
The following table lists the system command messages specified with mciSendCommand.
旼컴컴컴컴컴컴컴컴컴컴컴컫컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_DEVICESETTINGS 쿛rovides a media control interface � � 쿭river the opportunity to insert � � 쿬ustom settings pages. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_GROUP 쿘akes and breaks device group � � 쿪ssociations. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_MASTERAUDIO 쿞ets the system master volume and � � 퀃oggles speakers and headphones. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_SYSINFO 쿒ets and sets device and system � � 쿶nformation. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_CONNECTORINFO 쿒ets information regarding the � � 쿻umber and types of connectors � � 쿭efined for a device. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_DEFAULT_CONNECTION 쿘akes, breaks, or queries default � � 쿬onnections established for a � � 쿭evice. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_CONNECTION 쿒ets the device context connection � � 쿽r establishes an alias for a � � 쿬onnected device. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_ACQUIREDEVICE 쿌cquires a device for use. � 쳐컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿘CI_RELEASEDEVICE 쿝eleases a device from use. � 읕컴컴컴컴컴컴컴컴컴컴컴컨컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴�