By Ulrich Sendler
In the area of CAD & workplace Integration a brand new know-how has been brought that might overturn many accredited principles, either for developer and end-user. what's this innovative new expertise? referred to as "OLE for layout and Modeling" it's an enhancement of Microsoft home windows OLE for top functionality CAD/CAM/CAE-software. With this e-book, the reader will comprehend, how OLE for D&M permits clients to introduce and manage CAD types inside of standard text-processing and DTP-documents. And why even high-end 3D layout gadgets can now be transferred among diverse platforms utilizing effortless "drag and drop" operations. additionally this "plug and play" CAD know-how makes it attainable to take advantage of older CAD files and older software program in a wholly new context. on the way to be aware of, the place expertise goes to, you have to learn it.
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Extra resources for CAD & Office Integration: OLE for Design and Modeling. A New Technology for CA Software
Yet that would just have been another half measure. Mark Fortenberry, manager of the development group responsible for OLE interfaces, puts it like this: "That would have been just one more proprietary solution. The time for software like that is now past. The true strength of OLE is the very fact that it allows totally different applications to operate together. If we want to extend its impact to the field of graphical applications, we have to formulate the primary interfaces in general terms and make them available to any developer who is interested:' At talks with Microsoft in May 1994, the project was discussed and the first practical examples were demonstrated.
The properties and the behavior are protected. " (Figure 1 from Dr. Oesterhelt's speech in 1990) Keep it under cover Indirect access Unknown quantity 30 2 MS-Windows and OLE: Platform for Integration , bJe-ct ':~:r C:::~~ Int~rfacaD Figure 12: "As a user you have no direct access to a COM object. " (Figures 7-16 and 7-17, Meyer/Obermayr) Point to it Central switchboard: QueryInterface Do you know this one? You have to be smart Highly versatile methods are grouped in interfaces. This is all done in such a way that no object (and no developer or user) needs to know how the individual object and its methods are implemented.
You have to be smart Highly versatile methods are grouped in interfaces. This is all done in such a way that no object (and no developer or user) needs to know how the individual object and its methods are implemented. An interface in this context is nothing more than a group of pointers to the methods of the object. Thus to trigger a method an outside object needs to know which interface contains the pointer to that method. So how do you find out the right interfaces and the pointers they contain?