40 lines
582 B
C
40 lines
582 B
C
#include <u.h>
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#include <libc.h>
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#include <draw.h>
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#include <mouse.h>
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#include <cursor.h>
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#include <drawfcall.h>
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void
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usage(void)
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{
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fprint(2, "usage: devdraw (don't run directly)\n");
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exits("usage");
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}
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void
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main(int argc, char **argv)
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{
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int n;
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uchar buf[1024*1024];
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Wsysmsg m;
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ARGBEGIN{
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case 'D':
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break;
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default:
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usage();
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}ARGEND
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if(argc != 0)
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usage();
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while((n = readwsysmsg(0, buf, sizeof buf)) > 0){
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convM2W(buf, n, &m);
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m.type = Rerror;
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m.error = "no window system present";
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n = convW2M(&m, buf, sizeof buf);
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write(1, buf, n);
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}
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exits(0);
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}
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