Legacy Document

Important: The information in this document is obsolete and should not be used for new development.

Inside Macintosh: Advanced Color Imaging Reference /

Chapter 2 - Color Picker Manager Reference /

Color Picker-Defined Functions / Responding to Requests to Return and Set Color Picker Information

MySetBaseItem
Color picker-defined subroutine that handles a kSetBaseItem request.
If you create a color picker, it must respond to the kSetBaseItem request code. The Color Picker Manager sends this code to obtain the first item in your color picker's item list. A color picker responds to the kSetBaseItem request code by calling a color picker-defined subroutine (for example, MySetBaseItem) to handle the request.
pascal ComponentResult MySetBaseItem (
PickerStorageHndl storage, 
short baseItem);
storage
A handle to your color picker's global data.
baseItem
In the dialog item list, the number of the first item that belongs to your color picker.

DISCUSSION
Your MySetBaseItem function allows your color picker to access its dialog items through the Dialog Manager, where
RealItemNumber = baseItem + locaItemNumber (1 based)
Your function should return noErr if successful, or an appropriate result code otherwise.