48 lines
1006 B
C
48 lines
1006 B
C
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#include "windows.h"
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#include <string.h>
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#include <stdio.h>
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#define BIGREAD 256000
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unsigned char readbuff[BIGREAD];
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void main(int argc,char *argv[]) {
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HANDLE hFile;
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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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printf("Getting file type of %s\n",MyPort);
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if ((hFile = CreateFile(
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MyPort,
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GENERIC_READ,
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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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printf("We successfully opened the %s port.\n",MyPort);
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printf("The file type is: 0x%x\n",GetFileType(hFile));
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CloseHandle(hFile);
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} else {
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DWORD LastError;
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LastError = GetLastError();
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printf("Couldn't open the %s device.\n",MyPort);
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printf("Status of failed open is: %x\n",LastError);
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}
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}
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