Most of the text on the screen by the following function gdi32.dll displayed: TextOuA, TextOutW, ExtTextOutA, ExtTextOutW. Like user32.dll in DrawTextA, DrawTextW are calling this a number of functions GDI32.DLL achievable. In fact, we all know that screen realize grasping the key word is how to intercept this call a few functions. From easy to difficult, I briefly describe the realization of the need to grasp the words to do several things: First, get the mouse s current location. Second, to the window under the mouse fat redraw message, it calls system function redraw. Third, the system intercepted function call, to be distributed to system function parameters.

...........\Debug
...........\hookdll
...........\.......\Debug
...........\.......\dllmain.c
...........\.......\hookapi.def
...........\.......\hookdll.dsp
...........\.......\hookdll.dsw
...........\.......\hookdll.ncb
...........\.......\hookdll.sln
...........\.......\hookdll.vcproj
...........\.......\hookdll.vcproj.LXM.lxm.user
...........\resource.h
...........\testhook.001
...........\testhook.dsp
...........\testhook.dsw
...........\testhook.ncb
...........\testhook.opt
...........\testhook.rc
...........\testhook.sln
...........\testhook.vcproj
...........\testhook.vcproj.LXM.lxm.user
...........\winmain.c
...........\从屏幕抓词的技术实现.doc

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