mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-22 20:28:42 -05:00
44 lines
888 B
C
44 lines
888 B
C
#include <windows.h>
|
|
#include <stdio.h>
|
|
|
|
int ptt_(int *nport, int *ntx, int *iptt)
|
|
{
|
|
static HANDLE hFile;
|
|
static int open=0;
|
|
char s[10];
|
|
int i3=0,i4=0,i5=0,i6=0,i9=0,i00=0;
|
|
|
|
if(*nport==0) {
|
|
*iptt=*ntx;
|
|
return(0);
|
|
}
|
|
|
|
if(*ntx && (!open)) {
|
|
sprintf(s,"COM%d",*nport);
|
|
hFile=CreateFile(TEXT(s),GENERIC_WRITE,0,NULL,OPEN_EXISTING,
|
|
FILE_ATTRIBUTE_NORMAL,NULL);
|
|
if(hFile==INVALID_HANDLE_VALUE) {
|
|
// printf("PTT: Cannot open COM port %d.\n",*nport);
|
|
return 1;
|
|
}
|
|
open=1;
|
|
}
|
|
|
|
if(*ntx && open) {
|
|
EscapeCommFunction(hFile,3);
|
|
EscapeCommFunction(hFile,5);
|
|
*iptt=1;
|
|
}
|
|
|
|
else {
|
|
EscapeCommFunction(hFile,4);
|
|
EscapeCommFunction(hFile,6);
|
|
EscapeCommFunction(hFile,9);
|
|
i00=CloseHandle(hFile);
|
|
*iptt=0;
|
|
open=0;
|
|
}
|
|
if((i00+i3+i4+i5+i6+i9)==-99) return -1; //Silence compiler warning
|
|
return 0;
|
|
}
|