Legacy Document

Important: The information in this document is obsolete and should not be used for new development.

Inside Macintosh: More Macintosh Toolbox /

Chapter 4 - List Manager / List Manager Reference

List Manager Routines / Accessing and Manipulating Cell Data

LClrCell
You can use the LClrCell procedure to clear the data contained in a cell.
PROCEDURE LClrCell (theCell: Cell; lHandle: ListHandle);
theCell
The coordinates of the cell to be cleared.
lHandle
The list containing the cell given in the theCell parameter.

DESCRIPTION
The LClrCell procedure clears the data contained in the cell specified by the theCell parameter.
If the cell coordinates specified by the theCell parameter are invalid, then the LClrCell procedure does nothing.
If the data of a visible cell is cleared and the automatic drawing mode is enabled, LClrCell updates the list.

SPECIAL CONSIDERATIONS
You should not call the LClrCell procedure from within an interrupt, such as in a completion routine or VBL task.

ASSEMBLY-LANGUAGE INFORMATION
The trap macro and routine selector for the LClrCell procedure are
Trap macro Selector
_Pack0 $001C