All DatabasesInside Mac - Basic Toolbox
ResError
ResError Find if an error occurred in a resource operation
#include <Resources.h> Resource Manager
short ResError( );
returns an Error Code from last operation (0=no error)
All resource-related functions store a result code in a low-memory global.
You can use ResError to read that code and see if the most recent operation
caused an error, and if so, what the error was.
Returns: an integer; the Error Code of the most recent resource-related
operation. It may be a file system error or one of the following
resource error constants:
noErr (0) No Error (this constant is defined in MacTypes.h)
resNotFound (-192) Resource not found
resFNotFound (-193) Resource file not found
addResFailed (-194) AddResource failed
rmvResFailed (-196) RmveResource failed
(-197) (not used)
resAttrErr (-198) Attribute does not permit operation
mapReadErr (-199) Error reading resource map
Notes: ResError is functionally equivalent to reading the low-memory global,
ResErr; i.e., the following are the same, except the latter generates less
code and is faster:
if ( ResError() ) { ... an error occurred ... }
if ( ResErr ) { ... an error occurred ... }
ResError may return other system errors, for instance, dskFulErr or
memFullErr. See Error Codes for a full list.
A few Resource Manager functions indicate errors by returning a NIL
handle (e.g., GetResource). When these calls fail, ResError returns
noErr, so be sure to check for NIL handles!
Referenced by (107):