AESizeOfParam(_:_:_:_:)
Gets the size and descriptor type of an Apple event parameter from a descriptor of type AERecord or AppleEvent.
Declaration
func AESizeOfParam(_ theAppleEvent: UnsafePointer<AppleEvent>!, _ theAEKeyword: AEKeyword, _ typeCode: UnsafeMutablePointer<DescType>!, _ dataSize: UnsafeMutablePointer<Size>!) -> OSErrParameters
- theAppleEvent:
A pointer to the Apple event to get the parameter data from. See Appleevent.
- theAEKeyword:
The keyword that specifies the desired parameter. Some keyword parameter constants are described in 1527206 Keyword_parameter_constants. See Aekeyword.
- typeCode:
A pointer to a descriptor type. On return, specifies the descriptor type of the Apple event parameter. For a list of AppleScript’s predefined descriptor types, see 1542788 Descriptor_type_constants. See Desctype.
- dataSize:
A pointer to a size variable. On return, the length, in bytes, of the data in the Apple event parameter.
Return Value
A result code. See Result Codes.
Discussion
Thread safe starting in OS X v10.2.