Device Types
MCI recognizes a basic set of
device types. A device type is a set of MCI drivers that share a common command set and
are used to control similar multimedia devices or data files. Many MCI commands,
such as
open (
MCI_OPEN), require you to specify a device type.
The following table lists the defined device types. The current implementation
of MCI includes command sets for a subset of these devices.
Device type
| Constant
| Description
|
cdaudio
| MCI_DEVTYPE_CD_AUDIO
| CD audio player
|
dat
| MCI_DEVTYPE_DAT
| Digital-audio tape player
|
digitalvideo
| MCI_DEVTYPE_DIGITAL_VIDEO
| Digital video in a window (not GDI-based)
|
other
| MCI_DEVTYPE_OTHER
| Undefined MCI device
|
overlay
| MCI_DEVTYPE_OVERLAY
| Overlay device (analog video in a window)
|
scanner
| MCI_DEVTYPE_SCANNER
| Image scanner
|
sequencer
| MCI_DEVTYPE_SEQUENCER
| MIDI sequencer
|
| MCI_DEVTYPE_VCR
| Video-cassette recorder or player
|
| MCI_DEVTYPE_VIDEODISC
| Videodisc player
|
waveaudio
| MCI_DEVTYPE_WAVEFORM_AUDIO
| Audio device that plays digitized waveform files
|
In this document, the names of device types are bold. Device-type names are
used with the command-string interface. Device-type constants are used with the
command-message interface.
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