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WPF PDF viewer
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Introduction: 
blueware 2016-08-23
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How to view word document in WPF application
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Introduction The Sample demonstrates how to view word document in WPF application. WPF does not support to view Word documents directly but some customers want to show word document in WPF. So we can use WPF DocumentViewer control to host fixed document such as XPS document. And we also can convert word document to xps document using VSTO.
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COM Connection Points (Marshall-ed as Events in .N
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A typical scenario in COM has client objects instantiating server objects and then making calls to those objects. Without a special mechanism, however, it would be very difficult for those server objects to turn around and make calls back to the client objects. COM connection points provide this special mechanism, enabling two-way communication between the server and client. Using connection points, the server can call the client when certain events happen on the server. With connection points, the server specifies the events that it is capable of raising by defining an interface. Clients that have actions to be taken when these events are raised on the server register themselves with the server. The clients subsequently provide the implementation for the interface defined by the server. There are standard mechanisms through which clients can register themselves with the server. COM p
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