SELECT_GRAPHICS_OBJECT@

Platform

Win32, x64

Purpose

To select the current drawing surface.

Syntax

INTEGER FUNCTION SELECT_GRAPHICS_OBJECT@( UID )
INTEGER UID

Description

Drawing surfaces are created by %gr (Graphics Region), OPEN_PRINTER@ etc. and CREATE_GRAPHICS_REGION@. UID is a value that is supplied to %`gr, or OPEN_PRINTER@ etc.. ClearWin+ drawing routines are applied to the current drawing surface. Call this function if there is more than one drawing surface in order to draw on a surface that is not the current one.

This is an alternate function to SELECT_GRAPHICS_REGION@.

Return value

The value 1 is returned for success or zero for failure (invalid identifier).

 

 

Basket
Empty
 
Copyright © 1999-2020 Silverfrost Limited