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42 lines
840 B
C
42 lines
840 B
C
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#include <stdio.h>
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int ptt_(int *nport, int *ntx, int *iptt)
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{
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static int open=0;
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char s[10];
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// int i3,i4,i5,i6,i9,i00;
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if(*nport==0) {
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*iptt=*ntx;
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return(0);
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}
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if(*ntx && (!open)) {
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sprintf(s,"COM%d",*nport);
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// hFile=CreateFile(TEXT(s),GENERIC_WRITE,0,NULL,OPEN_EXISTING,
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// FILE_ATTRIBUTE_NORMAL,NULL);
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// if(hFile==INVALID_HANDLE_VALUE) {
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// printf("PTT: Cannot open COM port %d.\n",*nport);
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// return(1);
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// }
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open=1;
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return(0);
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}
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if(*ntx && open) {
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// EscapeCommFunction(hFile,3);
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// EscapeCommFunction(hFile,5);
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*iptt=1;
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}
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else {
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// EscapeCommFunction(hFile,4);
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// EscapeCommFunction(hFile,6);
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// EscapeCommFunction(hFile,9);
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// i00=CloseHandle(hFile);
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*iptt=0;
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open=0;
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}
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return(0);
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}
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