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ID: 15479, Hooking events generically

by Carl Reynolds Email:

Procedures HookProc, UnhookProc and PriorHook enable "safe" hooking of the same event or WindowProc by more than one object in a generic fashion
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For Delphi, Version 5.0  to 5.0 1373 downloads
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Size: 3,640 bytes
Updated on Mon, 29 Jan 2001 18:46:57 GMT
Originally uploaded on Thu, 04 Jan 2001 16:34:00 GMT
SHA1 Hash: 369D0622ABB3D8807E6DD43F3703A2039B0EA912
MD5 Hash: 614CD5F5AAF1E86845E6B2D3FEEE4FE4

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Use the three functions in this unit, HookProc, UnhookProc and PriorHook to safely and generically hook events or method properties, eg. WindowProc. For example, multiple components can simultaneously hook the same event without needing to be aware of each other if they use these methods, and said components can be safely deleted at any time and in any order.

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