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// |
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// Copyright (C) 2004-2005 Martin Wickett |
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// |
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|
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#include "hook.h" |
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|
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HINSTANCE WTSWinClipper::mCbtDllHinst = 0; |
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SETHOOKS WTSWinClipper::mSetCbtHook = 0; |
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REMOVEHOOKS WTSWinClipper::mRemoveCbtHook = 0; |
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GETINSTANCECOUNT WTSWinClipper::mGetInstanceCount = 0; |
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|
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bool WTSWinClipper::Init() |
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{ |
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if ( mCbtDllHinst ) |
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return true; |
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|
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while ( true ) { |
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// try to load hookdll.dll |
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if ( !( mCbtDllHinst = LoadLibrary( "hookdll.dll" ) ) ) |
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break; |
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|
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// check number of instances |
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if ( ! |
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( mGetInstanceCount = |
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( GETINSTANCECOUNT ) GetProcAddress( mCbtDllHinst, |
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"GetInstanceCount" ) ) ) |
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break; |
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|
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|
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// get our hook function |
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if ( ! |
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( mSetCbtHook = |
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( SETHOOKS ) GetProcAddress( mCbtDllHinst, "SetCbtHook" ) ) ) |
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break; |
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|
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// get our unkook function |
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if ( ! |
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( mRemoveCbtHook = |
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( REMOVEHOOKS ) GetProcAddress( mCbtDllHinst, "RemoveCbtHook" ) ) ) |
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break; |
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|
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// report success |
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return true; |
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} |
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|
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// if we got here something went wrong |
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if ( mCbtDllHinst ) { |
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FreeLibrary( mCbtDllHinst ); |
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mCbtDllHinst = 0; |
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} |
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|
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return false; |
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} |