This section describes the media control interface command messages.
All messages except system messages operate in an asynchronous mode without notification unless MCI_NOTIFY or MCI_WAIT is specified. These two flags are mutually exclusive. If both are used, the error MCIERR_FLAGS_NOT_COMPATIBLE is returned.
If MCI_WAIT is used, control is not returned to the caller until the command completes. MCI_NOTIFY returns control to the caller and then completes the command. A notification will be sent to the application if MCIERR_SUCCESS was returned on the call. The second parameter specified for each message is a pointer to a control block structure associated with that message. This pointer is passed in the pParam2 parameter of mciSendCommand. The following table lists the command messages.
旼컴컴컴컴컴컴컴컴컴컴컴컴쩡컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� 쿎ommand 쿏escription � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_ACQUIREDEVICE 쿝equests the use of the media � � 쿭evice. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_BUFFER 쿌llows an application to allocate � � �(or deallocate) buffers for use � � 퀇ith the audio device. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_CAPTURE 쿎auses a video device to capture � � 퀃he current video image. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_CLOSE 쿎loses a device. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_CONNECTION 쿜ueries the device ID of a � � 쿬onnected device. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_CONNECTOR 쿐nables or disables a connector, or� � 퀃o query the status of a connector.� 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_CONNECTORINFO 쿏etermines the total number of � � 쿬onnectors on a device, the number � � 쿽f connectors of a specific type, � � 퀃he type of each of the connectors,� � 쿪nd whether or not a particular � � 퀃ype of connection is valid for a � � 쿬onnector. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_COPY 쿎opies data from the device element� � 퀃o the clipboard or a user-supplied� � 쿫uffer. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_CUE 쿞ignals a device to ready itself � � �(preroll) so that a subsequent � � 쿾layback or recording operation � � 쿫egins with minimum delay. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_CUT 쿝emoves data from the device � � 쿮lement and copies it to the � � 쿬lipboard or a user-supplied � � 쿫uffer. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_DEFAULT_CONNECTION 쿘akes, breaks, and queries default � � 쿬onnections between devices. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_DELETE 쿝emoves the specified range of data� � 쿯rom the device element. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_DEVICESETTINGS 쿌llows a media control driver (MCD)� � 퀃o insert custom settings pages � � 쿶nto a Settings notebook. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_ESCAPE 쿞ends a string directly to the � � 쿭river. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_FREEZE 쿑reezes the motion of a video � � 쿶mage. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_GETDEVCAPS 쿝eturns static information about a � � 쿾articular driver. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_GETIMAGEBUFFER 쿝eads data from the image capture � � 쿫uffer. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_GETIMAGEPALETTE 쿚btains a palette or color map for � � 퀃he current image. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_GETTOC 쿔nterrogates the device, and � � 퀁eturns a table of contents � � 퀂tructure for the currently loaded � � 쿭isk. (CD Audio Only) � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_GROUP 쿢sed to provide the appropriate � � 쿺essage handling for GROUP � � 쿬ommands. GROUP commands allow you� � 퀃o control several multimedia � � 쿭evices from a single MCI command. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_INFO 쿝eturns string information from a � � 쿺edia device. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_LOAD 쿞pecifies a new file or RIFF chunk � � 퀃o be loaded into an already � � 쿮xisting device context. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_MASTERAUDIO 쿛rovides support for setting and � � 퀁etrieving system-wide audio � � 쿬ontrol parameters. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_MIXNOTIFY 쿙otifies an application of mixer � � 쿪ttribute changes. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_MIXSETUP 쿔nforms the mixer device that the � � 쿪pplication wishes to read or write� � 쿫uffers directly and sets up the � � 쿭evice in the correct mode. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_OPEN 쿚pens a logical multimedia device � � 쿪nd creates a new device context � � 쿯or use by an application. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_PASTE 쿛astes data from the clipboard or a� � 퀅ser-supplied buffer into the � � 퀂pecified range of a device � � 쿮lement. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_PAUSE 쿞uspends playback or recording. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_PLAY 쿞ignals the device to begin � � 퀃ransmitting data. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_PUT 쿞ets the source and destination � � 퀁ectangle arrays for the � � 퀃ransformation of the video image. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_RECORD 쿞tarts the device recording input � � 쿭ata. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_REDO 쿝edoes the record, cut, paste, or � � 쿭elete operation most recently � � 퀅ndone by MCI_UNDO. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_RELEASEDEVICE 쿝eleases the exclusive use of � � 쿾hysical device resources by a � � 쿭evice context or device group. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_RESTORE 쿎auses a video device to restore � � 퀃he image or bitmap. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_RESUME 쿝esumes playing or recording from a� � 쿾aused state. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_REWIND 쿞eeks the media to the beginning � � 쿾oint. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_SAVE 쿟his message saves the current � � 쿯ile. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_SEEK 쿎hanges the current media position � � 쿽f the device. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_SET 쿞ets device information. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_SET_CUEPOINT 쿞ets run-time cue points in the � � 쿺edia device. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_SETIMAGEBUFFER 쿥rites data to the image capture � � 쿫uffer. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_SETIMAGEPALETTE 쿞ets a palette or color map to be � � 퀅sed for mapping images. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_SET_POSITION_ADVISE 쿐nables periodic position-change � � 쿺essages from the media device. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_SET_SYNC_OFFSET 쿞pecifies positional offsets for � � 쿭evices operating in � � 퀂ynchronization. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_SETTUNER 쿞ets the frequency for the tuner � � 쿭evice. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_SPIN 쿞pins the player up or down. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_STATUS 쿚btains information about the � � 퀂tatus of a media control interface� � 쿭evice. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_STEP 쿞teps the player one or more � � 쿯rames. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_STOP 쿞tops audio or video playback or � � 퀁ecording. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_SYSINFO 쿝eturns information about media � � 쿬ontrol interface devices. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_UNDO 쿢ndoes the operation most recently � � 쿾erformed by record, cut, paste, or� � 쿭elete. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_UNFREEZE 쿝estores motion to an area of the � � 쿭isplay frozen with MCI_FREEZE. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_WHERE 쿝eturns the extent of the clipping � � 퀁ectangles. � 쳐컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� �MCI_WINDOW 쿞pecifies the window and the window� � 쿬haracteristics that a graphic � � 쿭evice should use for display. � 읕컴컴컴컴컴컴컴컴컴컴컴컴좔컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴�