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- OLE Automation Sample
-
-
- SUMMARY
- =======
-
- The SPoly2 sample draws polygons. The only way to make SPoly2 draw a polygon
- is to use its programmability interface.
-
- One OLE automation object is exposed by Spoly2: spoly.application.
- The object spoly2.application is associated with SPoly's main application
- window. It controls drawing polygons and clearing the display.
-
- MORE INFORMATION
- ================
-
- SPoly2 implements IDispatch for spoly.application by using INTERFACEDATA,
- DispGetIDsOfNames, and DispInvoke.
-
- Methods defined on spoly2.application
- -------------------------------------
-
- Name Description
-
- Draw Draw the polygon.
- Reset Delete all points from the polygon.
- AddPoint(X, Y) Add a point with coordinates (x,y) to the
- polygon.
- EnumPoints as VT_ENUM Return a collection of the polygon's points.
- GetXOrigin as short Get the X origin of the polygon.
- SetXOrigin(x as short) Set the X origin of the polygon.
- GetYOrigin as short Get the Y origin of the polygon.
- SetYOrigin(y as short) Set the Y origin of the polygon.
- GetWidth as short Get the line width of the polygon.
- SetWidth(width as short) Set the line width of the polygon.
-
- Shortcomings of this sample
- ---------------------------
-
- Many items in this sample should be properties. Instead, they are
- implemented as methods. Anything which behaves like an attribute of the
- object should be a property.
-
- This is not a good example of how to implement a collection.
-