810fd37bee
* harbour/source/vm/classes.c
* pacified BCC warning
+ harbour/tests/mt/mttest11.prg
+ added new test for asynchronous screen updating in MT mode
52 lines
1.2 KiB
Plaintext
52 lines
1.2 KiB
Plaintext
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* demonstration/test code for asynchronous screen updating without
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* breaking foreground screen operations.
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*
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* Copyright 2008 Przemyslaw Czerpak <druzus / at / priv.onet.pl>
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* www - http://www.harbour-project.org
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*
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*/
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proc main()
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local getList := {}
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local cVar := space( 20 )
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CLEAR SCREEN
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if ! hb_mtvm()
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? "No MT support in HVM. Clock will not be shown."
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WAIT
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else
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hb_threadStart( @thFunc() )
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endif
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@ 10, 10 SAY "Insert cVar:" GET cVar
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READ
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SetPos( 12, 0 )
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? "Result -> [" + cVar + "]"
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WAIT
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return
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func thFunc()
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local cTime
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while .T.
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cTime := dtoc( date() ) + " " + time()
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/* use hb_dispOutAt() which does not change current default
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* color and cursor position so can be executed without bad
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* side effects for other threads which updates screen.
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* This functions also accepts colors as numeric values.
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* Similar functionality have hb_dispBox() and hb_scroll().
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* All these functions changes only screen buffer but do not
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* touch cursor position and current color settings.
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*/
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hb_dispOutAt( 0, maxcol() - len( cTime ) + 1, cTime, "GR+/N" )
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hb_idleSleep( 1 )
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enddo
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return nil
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