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IDLffMrSID::Init

IDLffMrSID::Init

Syntax | Return Value | Arguments | Keywords | Examples | Version History

The IDLffMrSID::Init function method initializes an IDLffMrSID object containing the image data from a MrSID image file.

Note: Init methods are special lifecycle methods, and as such cannot be called outside the context of object creation. This means that in most cases, you cannot call the Init method directly. There is one exception to this rule: If you write your own subclass of this class, you can call the Init method from within the Init method of the subclass.

Syntax


Result = OBJ_NEW('IDLffMrSID', Filename [, PROPERTY=value])

or

Result = Obj->[IDLffMrSID::]Init(Filename [, PROPERTY=value])     (In a lifecycle method only.)

Return Value


When this method is called indirectly, as part of the call to the OBJ_NEW function, the return value is an object reference to the newly-created object.

When called directly within a subclass Init method, the return value is 1 if initialization was successful, or zero otherwise.

Arguments


Filename

A scalar string argument containing the full path and filename of a MrSID file to be accessed through this IDLffMrSID object.

Note: This is a required argument; it is not possible to create an IDLffMrSID object without specifying a valid MrSID file.

Keywords


Any property listed under IDLffMrSID Properties that contains the word “Yes” in the “Init” column of the properties table can be initialized during object creation using this method. To initialize the value of a property, specify the property name as a keyword set equal to the appropriate property value.

Examples


oMrSID = OBJ_NEW('IDLffMrSID', FILEPATH('test_gs.sid', $
   SUBDIRECTORY = ['examples', 'data']))

Version History


5.5

Introduced



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