Unit 'intuition'	Package
[Overview][Constants][Types][Procedures and functions][Variables][Index]	[#os4units]

QueryOverscan

Inquire about a standard overscan region.

Declaration

Source position: intuition.pas line 3881

function QueryOverscan(

DisplayID: LongWord;

OScanType: LongInt

):LongInt;

`DisplayID`		ID to be queried
`Rect`		Pointer to struct Rectangle to store result
`OScanType`		Overscan type OSCAN_*

0 (False) if the MonitorSpec your NewScreen requests does not exist. Non-zero (True) if it does.

This function fills in a rectangle with one of the system overscan dimensions, scaled appropriately for the mode of the DisplayID it is passed.

System overscan values for OScanType:

OSCAN_TEXT:: completely visible, by user preference. Used for Workbench screen and screen dimensions STDSCREENWIDTH and STDSCREENHEIGHT. Left/Top is always 0,0.
OSCAN_STANDARD:: just beyond visible bounds of monitor, by user preference. Left/Top may be negative.
OSCAN_MAX:: The largest region we can display, and display any smaller region.
OSCAN_VIDEO:: The absolute largest region that the graphics.library can display. This region must be used as-is.