DosQueryHType - Parameters

hFile (HFILE) - input

File handle.

pType (PULONG) - output

Address of the value indicating the handle type.

Possible values are shown in the following list:

Bit

Description
15
Network bit:
• The handle refers to a local file, device, or pipe. 1
  The handle refers to a remote file, device, or pipe.
  14
  1 Protected file handle.
  13-8
  Reserved.
  7-0
  HandleClass: Describes the handle class. It may take on the following values in the low byte of pType:
  • Disk file
    
  • Character device
    
  • Pipe.

    Values greater than 2 are reserved.

  pAttr (PULONG) - output

  Address of the device-driver attribute word if pType indicates a local character device.

  ulrc (APIRET) - returns

  Return Code.

  DosQueryHType returns one of the following values:

  • NO_ERROR 6
    ERROR_INVALID_HANDLE
    For a full list of error codes, see Errors.

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