32 lines
1.6 KiB
Plaintext
32 lines
1.6 KiB
Plaintext
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Simpsvr
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--------
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This sample is the simplest OLE 2.0 object that can be written and
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still support the visual editing feature. The object that this server
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supports is a colored square with a black border.
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See the MAKEFILE for compilation instructions.
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Simple Server Objects Overview
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------------------------------
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Simple server consists of three main objects. The top level is CSimpSvrApp,
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under which is CSimpSvrDoc, and the innermost level is CSimpSvrObj.CSimpSvrApp
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is used to hold all the main window information. (eg. handle to the main
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window, handles to the main, color, and help menus and the application
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instance) Therefore, CSimpSvrApp always exists as long as the simple server
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application is alive. The CSimpSvrApp instantiates the Class Factory, if
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simple server is started as embedding. (ie. started by OLE) The next level
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object is CSimpSvrDoc object. It is instantiated by the time CSimpSvrApp is
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created. It manipulates the document window and also the hatch window.
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(See OLE2UI for detail on the hatch window) The CSimpSvrObj, the innermost
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simple server object, shows six OLE interfaces implementations in its nested
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classes. The six OLE interfaces demonstrated are IOleObject, IPersistStorage,
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IDataObject,IOleInPlaceActiveObject,IOleInPlaceObject,and IExternalConnection.
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These six interfaces are implemented as different classes namely: COleObject,
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CPersistStorage, CDataObject, COleInPlaceActiveObject, COleInPlaceObject,
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and CExternalConnection. The CSimpSvrObj handles the drawing of the object
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and all the OLE connections between the container and the server.
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