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-Filevswr_mode()                                                             VDI

Syntax

WORD vswr_mode( handle, mode )
WORD handle, mode;

Function      vswr_mode() defines the writing mode for rendering VDI
              objects.

Opcode        32

Availability  Supported by all drivers.

Parameters    handle specifies a valid workstation handle.
              mode specifies a writing mode as follows:

              Name       mode   Example

              MD_REPLACE   1





              MD_TRANS     2





              MD_XOR       3





              MD_ERASE     4






Binding       contrl[0] = 32;
              contrl[1] = 0;
              contrl[3] = 1;
              contrl[6] = handle;

              intin[0] = mode;

              vdi();

              return intout[0];

Return Value  vswr_mode() returns the writing mode set.

Comments      In true-color modes, MD_ERASE and MD_TRANS work a little
              differently, they write (or avoid writing on) whatever color
              is currently held in VDI color 0 (as opposed to the actual
              register reference of 0).

Group         VDI Attributes