jit.displays

Set and query monitor attributes

Description

The jit.displays object automatically senses additional display hardware attached to your computer and allows you to use standard Jitter get* and set* messages to enumerate the number and coordinates of any and all monitors. The object remembers the original state of your system's display settings when the object is instantiated, which can be easily recalled, and you can also use the object to enable display mirroring.
Typically, the jit.displays object is saved as a portion of a performance patch setup to automatically determine the exact position of your attached hardware and move your output window as needed.

Arguments

None.

Messages

bang Equivalent to the count message. Sends a count of the attached displays out the object's outlet in the form count number-of-displays .
coords display-index [int]
Sends the display screen coordinates for the display whose index is specified out the object's right outlet as a list in the form coords display-index left top bottom right . Displays are counted from 0 (0 is the primary display).
count Sends a count of the attached displays out the object's outlet in the form count number-of-displays .
currentstate display-index [int]
Sends the current state of the display out the object's outlet as a list in the form currentstate display-index width height color-bit-depth refresh-rate . Note that LCD displays report a refresh rate of 0.
gammatable2matrix display-index [int]
matrix-name [symbol]
Copies the gamma table for the display specified by display-index to the matrix named matrix-name.
getmode display-index [int]
Sends available display modes for display specified by display-index out the right outlet as a sequence of lists, one display per line. Each display is described by a list in the form mode display-index mode-index width height color-bit-depth refresh-rate . Note: LCD displays have a refresh rate of 0.
manual display-index [int]
width [int]
height [int]
bit-depth [int]
Macintosh only
Sets the display to a configuration which provides the closest match for the ideal configuration specified by the arguments.
matrix2gammatable matrix-name [symbol]
display-index [int]
Copies the Jitter matrix named matrix-name to the gamma table for the display specified by display-index. On Windows, gamma tables with negative slope are not permitted, and will result in an error message.
mirror src-display-index [int]
dst-display-index [int]
Macintosh only
Enables video mirroring of the display whose number is specified by src-display-index to the display whose number is specified by dst-display-index.
move display-index [int]
newxtop [int]
newytop [int]
Changes the logical screen location of the display whose number is specified by src-display-index. Two additional arguments specify the new screen location. If a location is chosen which overlaps with the location of another display, a new non-overlapping location will be automatically assigned. The final position of the display after a move can be verified using the coords message.
reset Return displays to their snapshot state (see the snapshot method). Note that reset does not have any affect on video mirroring settings, which must be maintained manually.
resetgamma Return display gamma settings to their system default state.
setmode display-index [int]
mode-index [int]
Change the display mode. The two arguments specify the display index, and the mode index (derived from the getmode message).
snapshot Saves the current display mode (on all active displays) for use with the reset and resetmode messages. A snapshot is automatically taken when the object is instantiated.
unmirror display-index [int]
Macintosh only
Disables video mirroring on the specified display.

Attributes

Name Type g/s Description
resetmode int Macintosh only
Display mode flag (default = 1)
Enables or disables reset when the object is freed The jit.displays object remembers the original state of your system's display settings when the object is instantiated (display settings can also be saved using the snapshot message. A resetmode 1 will cause the original display settings to be restored when the patch is closed or the object is otherwise freed.
gamma float (set) Monitor gamma settings (Macintosh default = 0 1.8 1.8 1.8) (Windows default = 0 2.2 2.2 2.2)
The first argument specifies the device. The latter three arguments are used as coefficients in the generation of power-curve gamma tables for the red, green and blue channels. 1.8 represents standard Macintosh gamma, while 2.2 represents standard Windows gamma.

Information for box attributes common to all objects

Examples

See Also

Name Description
jit.desktop Copy the screen contents into a Jitter matrix
Tutorial 38: Basic Performance Setup Tutorial 38: Basic Performance Setup