mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-04 16:31:17 -05:00
44 lines
888 B
C
44 lines
888 B
C
#include <windows.h>
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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 HANDLE hFile;
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static int open=0;
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char s[10];
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int i3=0,i4=0,i5=0,i6=0,i9=0,i00=0;
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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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}
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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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if((i00+i3+i4+i5+i6+i9)==-99) return -1; //Silence compiler warning
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return 0;
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}
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