{{page>en:templates:fapiint}} ====== DosQHandType ====== This call determines whether a handle references a file or a device. ===== Syntax ===== 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}}