53 lines
977 B
C
53 lines
977 B
C
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include "windows.h"
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#define FAILURE(e) printf("FAIL: %d/%d\n",e,__LINE__);exit(1)
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int _CRTAPI1 main(int argc,char *argv[]) {
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HANDLE hFile;
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DWORD junk;
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char *myPort = "COM1";
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if (argc > 1) {
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myPort = argv[1];
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}
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if ((hFile = CreateFile(
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myPort,
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GENERIC_READ | GENERIC_WRITE,
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0,
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NULL,
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CREATE_ALWAYS,
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FILE_ATTRIBUTE_NORMAL,
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NULL
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)) != ((HANDLE)-1)) {
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if (!DeviceIoControl(
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hFile,
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0x001b004c,
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NULL,
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0,
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NULL,
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0,
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&junk,
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NULL
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)) {
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FAILURE(GetLastError());
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}
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} else {
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FAILURE(GetLastError());
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}
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}
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