TGTripleVSlider

    protected:

      virtual void DoRedraw()
      virtual void SetPointerPos(Int_t z, Int_t opt = 0)

    public:

                      TGTripleVSlider(const TGWindow* p = 0, UInt_t h = 1, UInt_t type = 1, Int_t id = -1, UInt_t options = kVerticalFrame, Pixel_t back = GetDefaultFrameBackground(), Bool_t reversed = kFALSE, Bool_t mark_ends = kFALSE, Bool_t constrained = kTRUE, Bool_t relative = kFALSE)
                      TGTripleVSlider(const TGTripleVSlider&)
              virtual ~TGTripleVSlider()
       static TClass* Class()
         virtual void DrawPointer()
      virtual Float_t GetPointerPosition() const
       virtual Bool_t HandleButton(Event_t* event)
       virtual Bool_t HandleMotion(Event_t* event)
      virtual TClass* IsA() const
         virtual void PointerPositionChanged()
         virtual void SavePrimitive(ostream& out, Option_t* option = "")
         virtual void SetConstrained(Bool_t on = kTRUE)
         virtual void SetPointerPosition(Float_t pos)
         virtual void SetRelative(Bool_t rel = kTRUE)
         virtual void ShowMembers(TMemberInspector& insp, char* parent)
         virtual void Streamer(TBuffer& b)
                 void StreamerNVirtual(TBuffer& b)

    protected:

                 Int_t fCz           vertical pointer position in pixel coordinates
               Float_t fSCz          vertical pointer position
                Bool_t fConstrained  kTRUE if pointer is constrained to slider edges
                Bool_t fRelative     kTRUE if pointer position is relative to slider
      const TGPicture* fPointerPic   picture to draw pointer

Class Description

                                                                      
 TGTripleVSlider and TGTripleHSlider                                  
                                                                      
 TripleSlider inherit from DoubleSlider widgets and allow easy        
 selection of a min, max and pointer value out of a range.            
 The pointer position can be constrained to edges of slider and / or  
 can be relative to the slider position.                              
                                                                      
 To change the min value press the mouse near to the left / bottom    
 edge of the slider.                                                  
 To change the max value press the mouse near to the right / top      
 edge of the slider.                                                  
 To change both values simultaneously press the mouse near to the     
 center of the slider.                                                
 To change pointer value press the mouse on the pointer and drag it   
 to the desired position                                              
                                                                      
 Dragging the slider will generate the event:                         
 kC_VSLIDER, kSL_POS, slider id, 0  (for vertical slider)             
 kC_HSLIDER, kSL_POS, slider id, 0  (for horizontal slider)           
                                                                      
 Pressing the mouse will generate the event:                          
 kC_VSLIDER, kSL_PRESS, slider id, 0  (for vertical slider)           
 kC_HSLIDER, kSL_PRESS, slider id, 0  (for horizontal slider)         
                                                                      
 Releasing the mouse will generate the event:                         
 kC_VSLIDER, kSL_RELEASE, slider id, 0  (for vertical slider)         
 kC_HSLIDER, kSL_RELEASE, slider id, 0  (for horizontal slider)       
                                                                      
 Moving the pointer will generate the event:                          
 kC_VSLIDER, kSL_POINTER, slider id, 0  (for vertical slider)         
 kC_HSLIDER, kSL_POINTER, slider id, 0  (for horizontal slider)       
                                                                      
 Use the functions GetMinPosition(), GetMaxPosition() and             
 GetPosition() to retrieve the position of the slider.                
 Use the function GetPointerPosition() to retrieve the position of    
 the pointer                                                          
                                                                      

 Create a vertical slider widget.

 Delete vertical slider widget.

 Redraw vertical slider widget.

 Draw slider pointer

 Handle mouse button event in vertical slider.

 Handle mouse motion event in vertical slider.

 Set pointer position constrained in the slider range.

 Set slider pointer position in pixel value.

 Set pointer position in scaled (real) value

 Save an horizontal slider as a C++ statement(s) on output stream out.