# TVirtualPad* Abstract base class for Pads and Canvases ```cpp public TObject, public TAttLine, public TAttFill, public TAttPad, public TQObject ``` ## class **TVirtualPad** ```cpp protected: Bool_t fResizing; //!true when resizing the pad virtual void *GetSender() { return this; } //used to set gTQSender public: TVirtualPad(); TVirtualPad(const char *name, const char *title, Double_t xlow, Double_t ylow, Double_t xup, Double_t yup, Color_t color=19, Short_t bordersize=4, Short_t bordermode=1); virtual ~TVirtualPad(); virtual void AbsCoordinates(Bool_t set) = 0; virtual Double_t AbsPixeltoX(Int_t px) = 0; virtual Double_t AbsPixeltoY(Int_t py) = 0; virtual void AddExec(const char *name, const char *command) = 0; virtual TLegend *BuildLegend(Double_t x1=0.5, Double_t y1=0.67, Double_t x2=0.88, Double_t y2=0.88, const char *title="", Option_t * option ="") = 0; virtual TVirtualPad* cd(Int_t subpadnumber=0) = 0; virtual void Clear(Option_t *option="") = 0; virtual Int_t Clip(Double_t *x, Double_t *y, Double_t xclipl, Double_t yclipb, Double_t xclipr, Double_t yclipt) = 0; virtual void Close(Option_t *option="") = 0; virtual void CopyPixmap() = 0; virtual void CopyPixmaps() = 0; virtual void DeleteExec(const char *name) = 0; virtual void Divide(Int_t nx=1, Int_t ny=1, Float_t xmargin=0.01, Float_t ymargin=0.01, Int_t color=0) = 0; virtual void Draw(Option_t *option="") = 0; virtual void DrawClassObject(const TObject *obj, Option_t *option="") = 0; virtual TH1F *DrawFrame(Double_t xmin, Double_t ymin, Double_t xmax, Double_t ymax, const char *title="") = 0; virtual void ExecuteEventAxis(Int_t event, Int_t px, Int_t py, TAxis *axis) = 0; virtual void UnZoomed() { Emit("UnZoomed()"); } // *SIGNAL* virtual Short_t GetBorderMode() const = 0; virtual Short_t GetBorderSize() const = 0; virtual Int_t GetCanvasID() const = 0; virtual TCanvasImp *GetCanvasImp() const = 0; virtual TCanvas *GetCanvas() const = 0; virtual TVirtualPad *GetVirtCanvas() const = 0; virtual Int_t GetEvent() const = 0; virtual Int_t GetEventX() const = 0; virtual Int_t GetEventY() const = 0; virtual TFrame *GetFrame() = 0; virtual Color_t GetHighLightColor() const = 0; virtual Int_t GetNumber() const = 0; virtual void GetRange(Double_t &x1, Double_t &y1, Double_t &x2, Double_t &y2) = 0; virtual void GetRangeAxis(Double_t &xmin, Double_t &ymin, Double_t &xmax, Double_t &ymax) = 0; virtual void GetPadPar(Double_t &xlow, Double_t &ylow, Double_t &xup, Double_t &yup) = 0; virtual Double_t GetXlowNDC() const = 0; virtual Double_t GetYlowNDC() const = 0; virtual Double_t GetWNDC() const = 0; virtual Double_t GetHNDC() const = 0; virtual UInt_t GetWw() const = 0; virtual UInt_t GetWh() const = 0; virtual Double_t GetAbsXlowNDC() const = 0; virtual Double_t GetAbsYlowNDC() const = 0; virtual Double_t GetAbsWNDC() const = 0; virtual Double_t GetAbsHNDC() const = 0; virtual Double_t GetAspectRatio() const = 0; virtual Double_t GetPhi() const = 0; virtual Double_t GetTheta() const = 0; virtual Double_t GetUxmin() const = 0; virtual Double_t GetUymin() const = 0; virtual Double_t GetUxmax() const = 0; virtual Double_t GetUymax() const = 0; virtual Bool_t GetGridx() const = 0; virtual Bool_t GetGridy() const = 0; virtual Int_t GetTickx() const = 0; virtual Int_t GetTicky() const = 0; virtual Double_t GetX1() const = 0; virtual Double_t GetX2() const = 0; virtual Double_t GetY1() const = 0; virtual Double_t GetY2() const = 0; virtual TList *GetListOfPrimitives() const = 0; virtual TList *GetListOfExecs() const = 0; virtual TObject *GetPrimitive(const char *name) const = 0; virtual TObject *GetSelected() const = 0; virtual TVirtualPad *GetPad(Int_t subpadnumber) const = 0; virtual TObject *GetPadPointer() const = 0; virtual TVirtualPad *GetPadSave() const = 0; virtual TVirtualPad *GetSelectedPad() const = 0; virtual TView *GetView() const = 0; virtual Int_t GetLogx() const = 0; virtual Int_t GetLogy() const = 0; virtual Int_t GetLogz() const = 0; virtual TVirtualPad *GetMother() const = 0; virtual const char *GetName() const = 0; virtual const char *GetTitle() const = 0; virtual Int_t GetPadPaint() const = 0; virtual Int_t GetPixmapID() const = 0; virtual TObject *GetView3D() const = 0; virtual Bool_t HasCrosshair() const = 0; virtual void HighLight(Color_t col=kRed, Bool_t set=kTRUE) = 0; virtual Bool_t HasFixedAspectRatio() const = 0; virtual Bool_t IsBatch() const = 0; Bool_t IsBeingResized() const { return fResizing; } virtual Bool_t IsEditable() const = 0; virtual Bool_t IsModified() const = 0; virtual Bool_t IsRetained() const = 0; virtual Bool_t IsVertical() const = 0; virtual void ls(Option_t *option="") const = 0; virtual void Modified(Bool_t flag=1) = 0; virtual Bool_t OpaqueMoving() const = 0; virtual Bool_t OpaqueResizing() const = 0; virtual Double_t PadtoX(Double_t x) const = 0; virtual Double_t PadtoY(Double_t y) const = 0; virtual void Paint(Option_t *option="") = 0; virtual void PaintBorderPS(Double_t xl,Double_t yl,Double_t xt,Double_t yt,Int_t bmode,Int_t bsize,Int_t dark,Int_t light) = 0; virtual void PaintBox(Double_t x1, Double_t y1, Double_t x2, Double_t y2, Option_t *option="") = 0; virtual void PaintFillArea(Int_t n, Float_t *x, Float_t *y, Option_t *option="") = 0; virtual void PaintFillArea(Int_t n, Double_t *x, Double_t *y, Option_t *option="") = 0; virtual void PaintPadFrame(Double_t xmin, Double_t ymin, Double_t xmax, Double_t ymax) = 0; virtual void PaintLine(Double_t x1, Double_t y1, Double_t x2, Double_t y2) = 0; virtual void PaintLineNDC(Double_t u1, Double_t v1,Double_t u2, Double_t v2) = 0; virtual void PaintLine3D(Float_t *p1, Float_t *p2) = 0; virtual void PaintLine3D(Double_t *p1, Double_t *p2) = 0; virtual void PaintPolyLine(Int_t n, Float_t *x, Float_t *y, Option_t *option="") = 0; virtual void PaintPolyLine(Int_t n, Double_t *x, Double_t *y, Option_t *option="") = 0; virtual void PaintPolyLine3D(Int_t n, Double_t *p) = 0; virtual void PaintPolyLineNDC(Int_t n, Double_t *x, Double_t *y, Option_t *option="") = 0; virtual void PaintPolyMarker(Int_t n, Float_t *x, Float_t *y, Option_t *option="") = 0; virtual void PaintPolyMarker(Int_t n, Double_t *x, Double_t *y, Option_t *option="") = 0; virtual void PaintModified() = 0; virtual void PaintText(Double_t x, Double_t y, const char *text) = 0; virtual void PaintText(Double_t x, Double_t y, const wchar_t *text) = 0; virtual void PaintTextNDC(Double_t u, Double_t v, const char *text) = 0; virtual void PaintTextNDC(Double_t u, Double_t v, const wchar_t *text) = 0; virtual Double_t PixeltoX(Int_t px) = 0; virtual Double_t PixeltoY(Int_t py) = 0; virtual void Pop() = 0; virtual void Print(const char *filename="") const = 0; virtual void Print(const char *filename, Option_t *option) = 0; virtual void Range(Double_t x1, Double_t y1, Double_t x2, Double_t y2) = 0; virtual void RangeAxis(Double_t xmin, Double_t ymin, Double_t xmax, Double_t ymax) = 0; virtual void RecursiveRemove(TObject *obj) = 0; virtual void RedrawAxis(Option_t *option="") = 0; virtual void ResetView3D(TObject *view=0) = 0; virtual void ResizePad(Option_t *option="") = 0; virtual void SaveAs(const char *filename="",Option_t *option="") const = 0; virtual void SetBatch(Bool_t batch=kTRUE) = 0; virtual void SetBorderMode(Short_t bordermode) = 0; virtual void SetBorderSize(Short_t bordersize) = 0; virtual void SetCanvas(TCanvas *c) = 0; virtual void SetCanvasSize(UInt_t ww, UInt_t wh) = 0; virtual void SetCrosshair(Int_t crhair=1) = 0; virtual void SetCursor(ECursor cursor) = 0; virtual void SetDoubleBuffer(Int_t mode=1) = 0; virtual void SetEditable(Bool_t mode=kTRUE) = 0; virtual void SetFixedAspectRatio(Bool_t fixed = kTRUE) = 0; virtual void SetGrid(Int_t valuex = 1, Int_t valuey = 1) = 0; virtual void SetGridx(Int_t value = 1) = 0; virtual void SetGridy(Int_t value = 1) = 0; virtual void SetLogx(Int_t value = 1) = 0; virtual void SetLogy(Int_t value = 1) = 0; virtual void SetLogz(Int_t value = 1) = 0; virtual void SetPad(const char *name, const char *title, Double_t xlow, Double_t ylow, Double_t xup, Double_t yup, Color_t color=35, Short_t bordersize=5, Short_t bordermode=-1) = 0; virtual void SetPad(Double_t xlow, Double_t ylow, Double_t xup, Double_t yup) = 0; virtual void SetAttFillPS(Color_t color, Style_t style) = 0; virtual void SetAttLinePS(Color_t color, Style_t style, Width_t lwidth) = 0; virtual void SetAttMarkerPS(Color_t color, Style_t style, Size_t msize) = 0; virtual void SetAttTextPS(Int_t align, Float_t angle, Color_t color, Style_t font, Float_t tsize) = 0; virtual void SetName(const char *name) = 0; virtual void SetSelected(TObject *obj) = 0; virtual void SetTicks(Int_t valuex = 1, Int_t valuey = 1) = 0; virtual void SetTickx(Int_t value = 1) = 0; virtual void SetTicky(Int_t value = 1) = 0; virtual void SetTitle(const char *title="") = 0; virtual void SetTheta(Double_t theta=30) = 0; virtual void SetPhi(Double_t phi=30) = 0; virtual void SetToolTipText(const char *text, Long_t delayms = 1000) = 0; virtual void SetVertical(Bool_t vert=kTRUE) = 0; virtual void SetView(TView *view=0) = 0; virtual void SetViewer3D(TVirtualViewer3D * /*viewer3d*/) {} virtual void ShowGuidelines(TObject *object, const Int_t event, const char mode = 'i', const bool cling = true) = 0; virtual TObject *WaitPrimitive(const char *pname="", const char *emode="") = 0; virtual void Update() = 0; virtual Int_t UtoAbsPixel(Double_t u) const = 0; virtual Int_t VtoAbsPixel(Double_t v) const = 0; virtual Int_t UtoPixel(Double_t u) const = 0; virtual Int_t VtoPixel(Double_t v) const = 0; virtual Int_t XtoAbsPixel(Double_t x) const = 0; virtual Int_t YtoAbsPixel(Double_t y) const = 0; virtual Double_t XtoPad(Double_t x) const = 0; virtual Double_t YtoPad(Double_t y) const = 0; virtual Int_t XtoPixel(Double_t x) const = 0; virtual Int_t YtoPixel(Double_t y) const = 0; virtual Int_t IncrementPaletteColor(Int_t i, TString opt) = 0; virtual Int_t NextPaletteColor() = 0; virtual Bool_t PlaceBox(TObject *o, Double_t w, Double_t h, Double_t &xl, Double_t &yb) = 0; virtual TObject *CreateToolTip(const TBox *b, const char *text, Long_t delayms) = 0; virtual void DeleteToolTip(TObject *tip) = 0; virtual void ResetToolTip(TObject *tip) = 0; virtual void CloseToolTip(TObject *tip) = 0; virtual TVirtualViewer3D *GetViewer3D(Option_t * type = "") = 0; virtual Bool_t HasViewer3D() const = 0; virtual void ReleaseViewer3D(Option_t * type = "") = 0; virtual Int_t GetGLDevice() = 0; virtual void SetCopyGLDevice(Bool_t copy) = 0; virtual TVirtualPadPainter *GetPainter() = 0; virtual Bool_t PadInSelectionMode() const; virtual Bool_t PadInHighlightMode() const; virtual void PushTopLevelSelectable(TObject *top); virtual void PushSelectableObject(TObject *obj); virtual void PopTopLevelSelectable(); static TVirtualPad *&Pad(); ``` **TPickerStackGuard** ```cpp public: TPickerStackGuard(TObject *obj); ~TPickerStackGuard(); private: TPickerStackGuard(const TPickerStackGuard &rhs); TPickerStackGuard &operator = (const TPickerStackGuard &rhs); ```