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Inside Macintosh: Interapplication Communication /

Chapter 12 - Data Access Manager / Data Access Manager Reference

Data Access Manager Routines / Initializing the Data Access Manager

InitDBPack

Use the InitDBPack function to initialize the Data Access Manager.

FUNCTION InitDBPack: OSErr;

DESCRIPTION

The InitDBPack function initializes the Data Access Manager. You must call the InitDBPack function before you call any other Data Access Manager routines. If the Data Access Manager has already been initialized, the InitDBPack function returns the noErr result code but does nothing else.

The interface routine that implements the InitDBPack function includes a version number for the Data Access Manager. If the Data Access Manager is a different version from that specified by the interface routine, then the InitDBPack function returns the rcDBWrongVersion result code.

SPECIAL CONSIDERATIONS

The InitDBPack function may move or purge memory. You should not call this routine from within an interrupt, such as in a completion routine or a VBL task.

ASSEMBLY-LANGUAGE INFORMATION

The trap macro and routine selector for the InitDBPack function are

Trap macro	Selector
_InitDBPack	$0100

RESULT CODES

noErr	0	No error
rcDBWrongVersion	-812	Wrong version number