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VDCWINCD.C
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Wrap
C/C++ Source or Header
|
1993-08-10
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550b
|
31 lines
/*
SG C Tools 1.2
(C) 1993 Steve Goldsmith
All Rights Reserved
Compiled with HI-TECH C 3.09 (CP/M-80).
*/
#include <hitech.h>
#include <vdc.h>
extern uchar vdcScrHorz;
extern ushort vdcDispMem;
/* clear window given x1, y1, x2, y2 rectangle in current page */
void clrwinvdc(uchar X1, uchar Y1, uchar X2, uchar Y2, uchar Ch)
{
uchar XLen;
ushort DispOfs;
DispOfs = Y1*vdcScrHorz+vdcDispMem+X1;
XLen = X2-X1+1;
for(; Y1 <= Y2; Y1++)
{
fillmemvdc(DispOfs,XLen,Ch);
DispOfs += vdcScrHorz;
}
}