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ICONVERT.OPL
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1993-12-26
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909b
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54 lines
REM ICONVERT
REM converts 24x24 monochrome bitmaps to 48x48 with grey plane
REM by Roger Burton-West <ubte30e@ucl.ac.uk>
REM copy freely and of your own will
PROC iconvert:
local f$(128),m$(128)
local buffer%(2049),buf%
local h1%,m&
local wi%,wo%,x%,y%
f$="\OPD\*.PIC"
m$="\OPD\.pic"
dINIT "Icon converter"
dFILE f$,"Source file:",8
dFILE m$,"Target file:",9
if DIALOG=0
return
endif
err%:(ioopen(h1%,f$,$600))
m&=0
err%:(ioseek(h1%,2,m&))
if m&<>116
ALERT("File is wrong length")
RETURN
endif
err%:(ioclose(h1%))
wi%=gLOADBIT(f$,0)
wo%=gCREATE(0,0,48,48,1,1)
gGREY 2
gCLS
gAT 24,24
gCOPY wi%,0,0,24,24,3
y%=24
do
gAT 24,y%-1
gCOPY wo%,24,y%,24,y%,3
y%=y%-1
until y%=0
x%=24
do
gAT x%-1,0
gCOPY wo%,x%,0,x%,48,3
x%=x%-1
until x%=0
gSAVEBIT m$
ENDP
PROC err%:(x%)
if x%<0
raise x%
endif
return x%
ENDP