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62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
#ifndef CXWINDOWSUTIL_H
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#define CXWINDOWSUTIL_H
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#include "BasicTypes.h"
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#include "CString.h"
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#include <X11/Xlib.h>
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class CXWindowsUtil {
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public:
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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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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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static Time getCurrentTime(Display*, Window);
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// class to set an X error handler in the c'tor and restore the
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// previous error handler in the d'tor. a lock should only
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// be installed while the display is locked by the thread.
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//
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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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class CErrorLock {
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public:
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typedef void (*ErrorHandler)(Display*, XErrorEvent*, void* userData);
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CErrorLock();
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CErrorLock(bool* errorFlag);
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CErrorLock(ErrorHandler, 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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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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};
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#endif
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