| MCI_DGV_INFO_ITEM | Specifies that a constant indicating the information desired is included in the dwItem field of the data structure identified by lParam2. The following constants are defined for digital-video devices: |
| MCI_DGV_INFO_AUDIO_ALG | Returns the name for the current audio compression algorithm. | |
| MCI_DGV_INFO_AUDIO_QUALITY | Returns the name for the current audio quality descriptor. | |
| MCI_DGV_INFO_STILL_ALG | Returns the name for the current still image compression algorithm. | |
| MCI_DGV_INFO_STILL_QUALITY | Returns the name for the current still image quality descriptor. | |
| MCI_DGV_INFO_USAGE | Returns a string describing usage restrictions that might be imposed by the owner of the visual or audible data in the workspace. | |
| MCI_DGV_INFO_VIDEO_ALG | Returns the name for the current video compression algorithm. | |
| MCI_DGV_INFO_VIDEO_QUALITY | Returns the name for the current video quality descriptor. | |
| MCI_INFO_VERSION | Returns the release level of the device driver and hardware. Device driver developers must document the syntax of the returned string. |
| MCI_DGV_INFO_TEXT | Returns the text-string in the title bar of the window associated with the device instance. | |
| MCI_INFO_FILE | Obtains the path and filename of the last file specified with the MCI_OPEN, or MCI_LOAD command. If a file has not been specified, the device returns a null-string. This flag is only supported by devices that return TRUE to the MCI_GETDEVCAPS_USES_FILES flag of the MCI_GETDEVCAPS command. | |
| LPMCI_DGV_INFO_PARMS lParam2 | Specifies a far pointer to the MCI_DGV_INFO_PARMS data structure. | |
| Return Value | Returns zero if successful. Otherwise, it returns an MCI error code. | |
| Comments | Information is returned in the lpstrReturn field of the data structure identified by lParam2. The dwReturnSize field specifies the buffer length for the return data. |