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RESOLUTION(3GC)       AVIATOR GRAPHICS INTERFACE CLASSES        RESOLUTION(3GC)



NAME
        FB_CLASS__RESOLUTION - resolution class

SYNOPSIS
        #include <agi.h>
        register Fbuffer fbp;

        fbstart(fbp, FB_CLASS__RESOLUTION)  {
        }  fbend(fbp);

DESCRIPTION
        The class FB_CLASS__RESOLUTION is used for change the frame buffers
        resolution and video timing.

MEMBERS
        The following public members can be accessed by using routines
        fbput(3G) and fbget(3G).  These 32 bit numbers can only be signed
        integer.

        FB_MEMBER__PIXEL_FREQUENCY__INTEGER
                PIXEL_FREQUENCY is the rate at which pixels are scanned out to
                the monitor, measured in Hz.
        FB_MEMBER__HORIZONTAL_FREQUENCY__INTEGER
                HORIZONTAL_FREQUENCY is the rate at which horizontal lines are
                scanned out to the monitor, measured in Hz.
        FB_MEMBER__VERTICAL_FREQUENCY__INTEGER
                VERTICAL_FREQUENCY is the refresh rate or the rate frames are
                scanned out to the monitor measured in Hz.
        FB_MEMBER__HORIZONTAL_FRONT_PORCH__INTEGER
                HORIZONTAL_FRONT_PORCH is the number of pixels during
                horizontal blanking before the horizontal sync pulse, measured
                in pixels.
        FB_MEMBER__HORIZONTAL_SYNC_WIDTH__INTEGER
                HORIZONTAL_SYNC_WIDTH is the number of pixels during
                horizontal sync pulse, measured in pixels.
        FB_MEMBER__HORIZONTAL_BACK_PORCH__INTEGER
                HORIZONTAL_BACK_PORCH is the number of pixels during
                horizontal blanking after the horizontal sync pulse, measured
                in pixels.
        FB_MEMBER__HORIZONTAL_DISPLAY__INTEGER
                HORIZONTAL_DISPLAY is the number of visible pixels, measured
                in pixels.
        FB_MEMBER__VERTICAL_FRONT_PORCH__INTEGER
                VERTICAL_FRONT_PORCH is the number of lines during vertical
                blanking before the vertical sync pulse, measured in lines.
        FB_MEMBER__VERTICAL_SYNC_WIDTH__INTEGER
                VERTICAL_SYNC_WIDTH is the number of lines during vertical
                sync pulse, measured in lines.
        FB_MEMBER__VERTICAL_BACK_PORCH__INTEGER
                VERTICAL_BACK_PORCH is the number of lines during vertical
                blanking after the vertical sync pulse, measured in lines.
        FB_MEMBER__VERTICAL_DISPLAY__INTEGER
                VERTICAL_DISPLAY is the number of visible lines, measured
                in lines.

FUNCTIONS
        The following public functions can be called by using the fbcall(3G)
        routine:

        FB_FUNCTION__STORE
                The STORE function stores all the current members into the
                frame buffer.
        FB_FUNCTION__LOAD
                The LOAD function loads all of the members from the frame
                buffer.

SEE ALSO
        fbcall(3G), fbend(3G), fbget(3G), fbput(3G), fbstart(3G)

WARNING
        Don't use this class unless you know what you're doing.

PERFORMANCE



AGI Release 1.8         Last change: 25 December 1991