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	| '''INT''' regionnumber || - The [[region]] in which to put the scroll window		| '''INT''' regionnumber || - The [[region]] in which to put the scroll window
	|-		|-
-	| '''INT''' lockindicator || - A [[bitflag]] defining whether each of the two scroll planes is horizontally/vertically cyclical	+	| '''INT''' lockindicator || - A [[bit flag]] defining whether each of the two scroll planes is horizontally/vertically cyclical
	|}		|}

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Revision as of 20:19, 30 November 2007

Contents 1 Definition 2 Parameters 3 Returns 4 Notes 5 Using Scrolling

Definition

INT Start_scroll ( <INT scrollnumber> , <INT fileID> , <INT graphID> , <INT backgroundgraphID> , <INT regionnumber> , <INT lockindicator> )

This creates a scroll window in which it will perform a view against a background graphic. That is, by using a graphic bigger than the display window, a part of this graphic can be shown and shifted in any direction. After this function, the use of the struct scroll makes sense.

Parameters

INT scrollnumber	- The ID for the new scroll window, so it can be referenced to later
INT fileID	- The fileID of the file containing the scroll graphics
INT graphID	- The graphID of the graphic of the main graphic to be scrolled
INT backgroundgraphID	- The graphID of the graphic for the background of the scroll window
INT regionnumber	- The region in which to put the scroll window
INT lockindicator	- A bit flag defining whether each of the two scroll planes is horizontally/vertically cyclical

Returns

INT : true

Notes

The locking indicator can be combinations of the following flags:

1	- The foreground will be displayed horizontally cyclical
2	- The foreground will be displayed vertically cyclical
4	- The background will be displayed horizontally cyclical
8	- The background will be displayed vertically cyclical

Combine them using the bitwise OR operator.

Using Scrolling

For each process that you want to be part of a scroll window, you must set the local variable ctype to value C_SCROLL. It should also be noted that the local variable c_number is used for selecting in which scroll a process should be displayed. Additionally, you must set the camera property of the scroll structure to the processID of the process you wish to be followed.