TGCheckButton

    protected:

      virtual void DoRedraw()
      virtual void EmitSignals(Bool_t wasUp = kTRUE)
              void Init()
              void PSetState(EButtonState state, Bool_t emit)

    public:

                          TGCheckButton(const TGWindow* p, TGHotString* s, Int_t id = -1, GContext_t norm = GetDefaultGC()(), FontStruct_t font = GetDefaultFontStruct(), UInt_t option = 0)
                          TGCheckButton(const TGWindow* p = 0, const char* s = "0", Int_t id = -1, GContext_t norm = GetDefaultGC()(), FontStruct_t font = GetDefaultFontStruct(), UInt_t option = 0)
                          TGCheckButton(const TGWindow* p, const char* s, const char* cmd, Int_t id = -1, GContext_t norm = GetDefaultGC()(), FontStruct_t font = GetDefaultFontStruct(), UInt_t option = 0)
                          TGCheckButton(const TGCheckButton&)
                  virtual ~TGCheckButton()
           static TClass* Class()
      static FontStruct_t GetDefaultFontStruct()
       static const TGGC& GetDefaultGC()
      virtual TGDimension GetDefaultSize() const
           virtual Bool_t HandleButton(Event_t* event)
           virtual Bool_t HandleCrossing(Event_t* event)
           virtual Bool_t HandleKey(Event_t* event)
          virtual TClass* IsA() const
           virtual Bool_t IsDown() const
           virtual Bool_t IsOn() const
           virtual Bool_t IsToggleButton() const
             virtual void SavePrimitive(ostream& out, Option_t* option = "")
             virtual void SetState(EButtonState state, Bool_t emit = kFALSE)
             virtual void ShowMembers(TMemberInspector& insp, char* parent)
             virtual void Streamer(TBuffer& b)
                     void StreamerNVirtual(TBuffer& b)

    protected:

              EButtonState fPrevState     previous check button state
      static const TGFont* fgDefaultFont  
        static const TGGC* fgDefaultGC    

Class Description

                                                                      
 TGButton, TGTextButton, TGPictureButton, TGCheckButton and           
 TGRadioButton                                                        
                                                                      
 This header defines all GUI button widgets.                          
                                                                      
 TGButton is a button abstract base class. It defines general button  
 behaviour.                                                           
                                                                      
 Selecting a text or picture button will generate the event:          
 kC_COMMAND, kCM_BUTTON, button id, user data.                        
                                                                      
 Selecting a check button will generate the event:                    
 kC_COMMAND, kCM_CHECKBUTTON, button id, user data.                   
                                                                      
 Selecting a radio button will generate the event:                    
 kC_COMMAND, kCM_RADIOBUTTON, button id, user data.                   
                                                                      
 If a command string has been specified (via SetCommand()) then this  
 command string will be executed via the interpreter whenever a       
 button is selected. A command string can contain the macros:         
 $MSG   -- kC_COMMAND, kCM[CHECK|RADIO]BUTTON packed message          
           (use GET_MSG() and GET_SUBMSG() to unpack)                 
 $PARM1 -- button id                                                  
 $PARM2 -- user data pointer                                          
 Before executing these macros are expanded into the respective       
 Long_t's                                                             
                                                                      

 Create a check button widget. The hotstring will be adopted and deleted
 by the check button.

 Create a check button widget.

 Create a check button widget.

 Common initialization.

 Delete a check button.

 Set check button state.

 Set check button state.

 Handle mouse button event.

 Handle mouse crossing event.

 Handle key event. This function will be called when the hotkey is hit.

 Draw the check button widget.

 Return default font structure.

 Return default graphics context.

 Save a check button widget as a C++ statement(s) on output stream out