Important: The information in this document is obsolete and should not be used for new development.
AESizeOfParam
You can use theAESizeOfParam
function to get the size and descriptor type of an Apple event parameter.
FUNCTION AESizeOfParam (theAppleEvent: AppleEvent; theAEKeyword: AEKeyword; VAR typeCode: DescType; VAR dataSize: Size): OSErr;
theAppleEvent
- The Apple event containing the parameter.
theAEKeyword
- The keyword that specifies the desired parameter.
typeCode
- The descriptor type of the Apple event parameter.
dataSize
- The length, in bytes, of the data in the Apple event parameter.
RESULT CODES
noErr 0 No error errAEDescNotFound -1701 Descriptor record was not found errAENotAEDesc -1704 Not a valid descriptor record errAEReplyNotArrived -1718 Reply has not yet arrived