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Adam
b4a8d373d8
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5 years ago | |
|---|---|---|
| .. | ||
| cenumpt.cpp | 5 years ago | |
| cenumpt.h | 5 years ago | |
| clsid.c | 5 years ago | |
| clsid.h | 5 years ago | |
| cpoint.cpp | 5 years ago | |
| cpoint.h | 5 years ago | |
| cpoly.cpp | 5 years ago | |
| cpoly.h | 5 years ago | |
| hostenv.h | 5 years ago | |
| macmain.cpp | 5 years ago | |
| makefile | 5 years ago | |
| misc.cpp | 5 years ago | |
| mk.bat | 5 years ago | |
| mk.cmd | 5 years ago | |
| readme.txt | 5 years ago | |
| resource.h | 5 years ago | |
| spoly.def | 5 years ago | |
| spoly.h | 5 years ago | |
| spoly.ico | 5 years ago | |
| spoly.r | 5 years ago | |
| spoly.r32 | 5 years ago | |
| spoly.rc | 5 years ago | |
| spoly.reg | 5 years ago | |
| statbar.cpp | 5 years ago | |
| statbar.h | 5 years ago | |
| winmain.cpp | 5 years ago | |
readme.txt
------------------------------------
OLE Automation Sample Program: SPoly
------------------------------------
SPoly is a program which draws polygons. The only way to
make spoly draw a polygon is to use its programmability
interface.
One OLE Automation object is exposed by Spoly:
* spoly.application
Spoly.Application is the object associated with spoly's main
window. It controls drawing polygons and clearing the display.
-----------------
Program Structure
-----------------
SPoly implements IDispatch by hand for spoly.application.
------------------------------------
Methods defined on spoly.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 and the line width of the polygon.
SetWidth(width as short) Set the line width of the polygon.
---------------------------
Shortcomings of this sample
---------------------------
1. 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.
2. This is not a good example of how to implement a collection.