Mac Dev Center Mac OS X Reference Library Drivers, Kernel, & Hardware: User-Space Device Access Disc Recording Framework Reference

Overview

This category on DRDevice defines methods that make retrieving the more commonly accessed DRDevice status dictionary properties easier.

Methods

-bsdName

-mediaIsAppendable

-mediaIsBlank

-mediaIsBusy

-mediaIsErasable

-mediaIsOverwritable

-mediaIsPresent

-mediaIsReserved

-mediaIsTransitioning

-mediaSpaceFree

-mediaSpaceOverwritable

-mediaSpaceUsed

-mediaType

-trayIsOpen

- (NSString*) bsdName; 

Discussion

Returns the bsd /dev node name.

- (BOOL) mediaIsAppendable; 

Discussion

Returns YES if the media in the device can have more data appended to any existing data.

- (BOOL) mediaIsBlank; 

Discussion

Returns YES the media in the device is blank.

- (BOOL) mediaIsBusy; 

Discussion

Returns YES if the media is in use by some process - even the one making this call.

- (BOOL) mediaIsErasable; 

Discussion

Returns YES if the media can be erased (i.e., CD-RW, DVD-RW, etc).

- (BOOL) mediaIsOverwritable; 

Discussion

Returns YES if the media in the device can be fully (re)written.

- (BOOL) mediaIsPresent; 

Discussion

Reports the presence of the media.

- (BOOL) mediaIsReserved; 

Discussion

Returns YES if the application calling this method currently holds the reservation on the media.

- (BOOL) mediaIsTransitioning; 

Discussion

Returns YES if the media is in transition (spinning up or down for example).

- (DRMSF*) mediaSpaceFree; 

Discussion

Returns the amount of free space on the media.

- (DRMSF*) mediaSpaceOverwritable; 

Discussion

Returns the amount of writable space on the media.

- (DRMSF*) mediaSpaceUsed; 

Discussion

Returns the amount of used space on the media.

- (NSString*) mediaType; 

Discussion

Returns the type of media currently inserted into the device.

- (BOOL) trayIsOpen; 

Return Value

Returns YES if the device has a tray and it is open.

Discussion

Reports the tray state of the device.