library: libGui #include "TGScrollBar.h"

# TGVScrollBar

class description - source file - inheritance tree (.pdf)

## class TGVScrollBar : public TGScrollBar

| Inheritance Chart:
`TObject`
| <- | `TGObject`
| <- | `TGWindow`
`TQObject`
| <- | `TGFrame`
`TGWidget`
| <- | `TGScrollBar`
| <- | `TGVScrollBar` |

        public:

                              TGVScrollBar(const TGWindow* p = 0, UInt_t w = 2, UInt_t h = 4, UInt_t options = kVerticalFrame, Pixel_t back = GetDefaultFrameBackground())
                              TGVScrollBar(const TGVScrollBar&)
                      virtual ~TGVScrollBar()
               static TClass* Class()
          virtual TGDimension GetDefaultSize() const
               virtual Bool_t HandleButton(Event_t* event)
               virtual Bool_t HandleMotion(Event_t* event)
              virtual TClass* IsA() const
                 virtual void Layout()
                 virtual void SetPosition(Int_t pos)
                 virtual void SetRange(Int_t range, Int_t page_size)
                 virtual void ShowMembers(TMemberInspector& insp, char* parent)
                 virtual void Streamer(TBuffer& b)
                         void StreamerNVirtual(TBuffer& b)

### Data Members

## Class Description

     TGScrollBar and TGScrollBarElement

     The classes in this file implement scrollbars. Scrollbars can be
     either placed horizontal or vertical. A scrollbar contains three
     TGScrollBarElements: The "head", "tail" and "slider". The head and
     tail are fixed at either end and have the typical arrows in them.

     The TGHScrollBar will generate the following event messages:
     kC_HSCROLL, kSB_SLIDERPOS, position, 0
     kC_HSCROLL, kSB_SLIDERTRACK, position, 0

     The TGVScrollBar will generate the following event messages:
     kC_VSCROLL, kSB_SLIDERPOS, position, 0
     kC_VSCROLL, kSB_SLIDERTRACK, position, 0

TGVScrollBar(const TGWindow *p, UInt_t w, UInt_t h, UInt_t options, ULong_t back) : TGScrollBar(p, w, h, options, back)

     Create a vertical scrollbar.

void Layout()

     Layout and move vertical scrollbar components.

Bool_t HandleButton(Event_t *event)

     Handle mouse button event in vertical scrollbar.

Bool_t HandleMotion(Event_t *event)

     Handle mouse motion in a vertical scrollbar.

void SetRange(Int_t range, Int_t page_size)

     Set range of vertical scrollbar.

void SetPosition(Int_t pos)

     Set logical slider position of vertical scrollbar.

### Inline Functions

                    void ~TGVScrollBar()
             TGDimension GetDefaultSize() const
                 TClass* Class()
                 TClass* IsA() const
                    void ShowMembers(TMemberInspector& insp, char* parent)
                    void Streamer(TBuffer& b)
                    void StreamerNVirtual(TBuffer& b)
            TGVScrollBar TGVScrollBar(const TGVScrollBar&)

Author: Fons Rademakers 10/01/98
Last update: root/gui:$Name: $:$Id: TGScrollBar.cxx,v 1.12 2003/11/05 13:08:26 rdm Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *