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Initial commit of the synergy trunk sources from sf.net
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185
lib/platform/CXWindowsUtil.h
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185
lib/platform/CXWindowsUtil.h
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/*
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* synergy -- mouse and keyboard sharing utility
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* Copyright (C) 2002 Chris Schoeneman
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*
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* This package is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* found in the file COPYING that should have accompanied this file.
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*
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* This package is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef CXWINDOWSUTIL_H
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#define CXWINDOWSUTIL_H
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#include "CString.h"
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#include "BasicTypes.h"
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#include "stdmap.h"
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#include "stdvector.h"
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#if X_DISPLAY_MISSING
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# error X11 is required to build synergy
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#else
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# include <X11/Xlib.h>
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#endif
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//! X11 utility functions
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class CXWindowsUtil {
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public:
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typedef std::vector<KeySym> KeySyms;
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//! Get property
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/*!
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Gets property \c property on \c window. \b Appends the data to
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\c *data if \c data is not NULL, saves the property type in \c *type
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if \c type is not NULL, and saves the property format in \c *format
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if \c format is not NULL. If \c deleteProperty is true then the
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property is deleted after being read.
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*/
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static bool getWindowProperty(Display*,
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Window window, Atom property,
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CString* data, Atom* type,
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SInt32* format, bool deleteProperty);
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//! Set property
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/*!
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Sets property \c property on \c window to \c size bytes of data from
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\c data.
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*/
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static bool setWindowProperty(Display*,
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Window window, Atom property,
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const void* data, UInt32 size,
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Atom type, SInt32 format);
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//! Get X server time
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/*!
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Returns the current X server time.
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*/
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static Time getCurrentTime(Display*, Window);
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//! Convert KeySym to KeyID
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/*!
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Converts a KeySym to the equivalent KeyID. Returns kKeyNone if the
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KeySym cannot be mapped.
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*/
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static UInt32 mapKeySymToKeyID(KeySym);
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//! Convert KeySym to corresponding KeyModifierMask
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/*!
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Converts a KeySym to the corresponding KeyModifierMask, or 0 if the
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KeySym is not a modifier.
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*/
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static UInt32 getModifierBitForKeySym(KeySym keysym);
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//! Convert Atom to its string
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/*!
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Converts \p atom to its string representation.
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*/
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static CString atomToString(Display*, Atom atom);
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//! Convert several Atoms to a string
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/*!
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Converts each atom in \p atoms to its string representation and
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concatenates the results.
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*/
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static CString atomsToString(Display* display,
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const Atom* atom, UInt32 num);
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//! Prepare a property of atoms for use
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/*!
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64-bit systems may need to modify a property's data if it's a
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list of Atoms before using it.
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*/
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static void convertAtomProperty(CString& data);
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//! Append an Atom to property data
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/*!
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Converts \p atom to a 32-bit on-the-wire format and appends it to
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\p data.
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*/
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static void appendAtomData(CString& data, Atom atom);
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//! Replace an Atom in property data
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/*!
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Converts \p atom to a 32-bit on-the-wire format and replaces the atom
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at index \p index in \p data.
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*/
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static void replaceAtomData(CString& data,
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UInt32 index, Atom atom);
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//! Append an Time to property data
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/*!
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Converts \p time to a 32-bit on-the-wire format and appends it to
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\p data.
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*/
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static void appendTimeData(CString& data, Time time);
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//! X11 error handler
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/*!
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This class sets an X error handler in the c'tor and restores the
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previous error handler in the d'tor. A lock should only be
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installed while the display is locked by the thread.
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CErrorLock() ignores errors
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CErrorLock(bool* flag) sets *flag to true if any error occurs
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*/
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class CErrorLock {
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public:
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//! Error handler type
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typedef void (*ErrorHandler)(Display*, XErrorEvent*, void* userData);
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/*!
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Ignore X11 errors.
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*/
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CErrorLock(Display*);
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/*!
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Set \c *errorFlag if any error occurs.
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*/
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CErrorLock(Display*, bool* errorFlag);
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/*!
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Call \c handler on each error.
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*/
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CErrorLock(Display*, ErrorHandler handler, void* userData);
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~CErrorLock();
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private:
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void install(ErrorHandler, void*);
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static int internalHandler(Display*, XErrorEvent*);
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static void ignoreHandler(Display*, XErrorEvent*, void*);
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static void saveHandler(Display*, XErrorEvent*, void*);
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private:
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typedef int (*XErrorHandler)(Display*, XErrorEvent*);
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Display* m_display;
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ErrorHandler m_handler;
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void* m_userData;
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XErrorHandler m_oldXHandler;
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CErrorLock* m_next;
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static CErrorLock* s_top;
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};
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private:
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class CPropertyNotifyPredicateInfo {
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public:
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Window m_window;
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Atom m_property;
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};
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static Bool propertyNotifyPredicate(Display*,
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XEvent* xevent, XPointer arg);
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static void initKeyMaps();
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private:
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typedef std::map<KeySym, UInt32> CKeySymMap;
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static CKeySymMap s_keySymToUCS4;
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};
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#endif
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