DosQHandType (FileHandle, HandType, FlagWord)
===== Parameters =====
* FileHandle ([[HFILE]]) - input : File handle.
* HandType ([[PUSHORT]]) - output : Address of the value indicating the handle type. HandType is composed of two bytes:
*15 - Network bit:
*0 = The handle refers to a local file, device, or pipe.
*1 = Means that the handle refers to a remote file, device, or pipe.
*14-8 - Reserved.
*7-0 - HandleClass describes the handle class. It may take on the following values in the low byte of HandleType:
*0 - Handle is for a disk file
*1 - Handle is for a character device
*2 - Handle is for a pipe.
Values greater than 2 are reserved.
* FlagWord ([[PUSHORT]]) - output : Address of the device driver's attribute word if HandleType indicates a local character device.
===== Return Code =====
rc ([[USHORT]]) - return
Return code descriptions are:
* 0 NO_ERROR
* 6 ERROR_INVALID_HANDLE
===== Remarks =====
This function allows programs that are interactive or file-oriented to determine the source of their input. For example, CMD.EXE suppresses writing prompts if the input is from a disk file.
===== Bindings =====
====C====
#define INCL_DOSFILEMGR
USHORT rc = DosQHandType(FileHandle, HandType, FlagWord);
HFILE FileHandle; /* File handle */
PUSHORT HandType; /* Handle type (returned) */
PUSHORT FlagWord; /* Device driver attribute (returned) */
USHORT rc; /* return code */
====MASM====
EXTRN DosQHandType:FAR
INCL_DOSFILEMGR EQU 1
PUSH WORD FileHandle ;File handle
PUSH@ WORD HandType ;Handle type (returned)
PUSH@ WORD FlagWord ;Device driver attribute (returned)
CALL DosQHandType
Returns WORD
{{page>en:templates:fapi}}