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CopyParam

Header: Files.h

struct CopyParam {
    QElemPtr qLink; 
    SInt16 qType; 
    SInt16 ioTrap; 
    Ptr ioCmdAddr; 
    IOCompletionUPP ioCompletion; 
    volatile OSErr ioResult; 
    StringPtr ioNamePtr; 
    SInt16 ioVRefNum; 
    SInt16 ioDstVRefNum; 
    SInt16 filler8; 
    StringPtr ioNewName; 
    StringPtr ioCopyName; 
    SInt32 ioNewDirID; 
    SInt32 filler14; 
    SInt32 filler15; 
    SInt32 ioDirID;
};
typedef CopyParam CopyParamPtr;

Field descriptions

qLink

A pointer to the next entry in the file I/O queue. (This field is used internally by the File Manager to keep track of asynchronous calls awaiting execution.)

qType

The queue type. (This field is used internally by the File Manager.)

ioTrap

The trap number of the function that was called. (This field is used internally by the File Manager.)

ioCmdAddr

The address of the function that was called. (This field is used internally by the File Manager.)

ioCompletion

A pointer to a completion routine to be executed at the end of an asynchronous call. It should be NULL for asynchronous calls with no completion routine and is automatically set to NULL for all synchronous calls. See IOCompletionProcPtr for information about completion routines.

ioResult

The result code of the function. For synchronous calls, this field is the same as the result code of the function call itself. To determine when an asynchronous call has actually been completed, your application can poll this field; it’s set to a positive number when the call is made and receives the actual result code when the call is completed.

ioNamePtr

A pointer to a pathname. Whenever a function description specifies that ioNamePtr is used—whether for input, output, or both—it’s very important that you set this field to point to storage for a Str255 value (if you’re using a pathname) or to NULL (if you’re not).

ioVRefNum

A volume specification (volume reference number, working directory reference number, drive number, or 0 for default volume).

ioDstVRefNum

A volume reference number for the destination volume.

filler8

Reserved.

ioNewName

A pointer to the destination pathname.

ioCopyName

A pointer to an optional name.

ioNewDirID

A destination directory ID.

filler14
filler15
ioDirID

© 2000 Apple Computer, Inc. (Last Updated 6/30/2000)