Topic       : The ATARI Compendium
Author      : Scott Sanders / JAY Software
Version     : 1.25 (20/6/2003)
Subject     : Documentation
Nodes       : 1117
Index Size  : 32614
HCP-Version : 6
Compiled on : Atari
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View Ref-Filevt_origin()
vt_alignment()                                                          VDI

Syntax

VOID vt_alignment( handle, dx, dy )
WORD handle, dx, dy;

Function      vt_alignment() allows an offset to be specifies that will be
              applied to all coordinates output from the graphics tablet.

Opcode        5

Sub-Opcode    85

Availability  Supported by all tablet drivers.

Parameters    handle specifies a valid workstation handle.
              dx and dy are the delta offsets from ( 0, 0 ) to apply to
              values from the graphics tablet.

Binding       contrl[0] = 5;
              contrl[1] = 0;
              contrl[3] = 2;
              contrl[5] = 85;
              contrl[6] = handle;

              intin[0] = dx;
              intin[1] = dy;

              vdi();

Comments      This call is used to 'fine-tune' the true starting point of
              the tablet.

See Also      vt_origin()

Group         VDI Tablet Escapes