FLTK 1.4.5: Fl_Single_Window Class Reference

FLTK 1.4.5

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Fl_Single_Window Class Reference

This is the same as Fl_Window. More...

`#include <Fl_Single_Window.H>`

Inheritance diagram for Fl_Single_Window:

## Public Member Functions
| Fl_Single_Window (int W, int H, const char *l=0)
| Creates a new Fl_Single_Window widget using the given size, and label (title) string.
| Fl_Single_Window (int X, int Y, int W, int H, const char *l=0)
| Creates a new Fl_Single_Window widget using the given position, size, and label (title) string.
void | flush () FL_OVERRIDE
| Same as Fl_Window::flush().
void | make_current ()
| Same as Fl_Window::make_current().
void | show () FL_OVERRIDE
| Makes a widget visible.
void | show (int argc, char **argv)
| Same as Fl_Window::show(int argc, char **argv).
Public Member Functions inherited from Fl_Window
void | allow_expand_outside_parent ()
| Allow this subwindow to expand outside the area of its parent window.
virtual class Fl_Double_Window * | as_double_window ()
| Return non-null if this is an Fl_Double_Window object.
virtual class Fl_Overlay_Window * | as_overlay_window ()
| Return non-null if this is an Fl_Overlay_Window object.
Fl_Window const * | as_window () const FL_OVERRIDE
Fl_Window * | as_window () FL_OVERRIDE
| Returns an Fl_Window pointer if this widget is an Fl_Window.
unsigned int | border () const
| Returns whether the window possesses a border.
void | border (int b)
| Sets whether or not the window manager border is around the window.
void | clear_border ()
| Fast inline function to turn the window manager border off.
void | clear_modal_states ()
| Clears the "modal" flags and converts a "modal" or "non-modal" window back into a "normal" window.
void | copy_label (const char *a)
| Sets the window titlebar label to a copy of a character string.
void | cursor (const Fl_RGB_Image *, int, int)
| Changes the cursor for this window using the provided image as cursor's shape.
void | cursor (Fl_Cursor c, Fl_Color, Fl_Color=FL_WHITE)
| For back compatibility only.
void | cursor (Fl_Cursor)
| Changes the cursor for this window.
int | decorated_h () const
| Returns the window height including any window title bar and any frame added by the window manager.
int | decorated_w () const
| Returns the window width including any frame added by the window manager.
void | default_cursor (Fl_Cursor c, Fl_Color, Fl_Color=FL_WHITE)
| For back compatibility only.
void | default_cursor (Fl_Cursor)
| Sets the default window cursor.
void | draw_backdrop ()
| Draw the background image if one is set and is aligned inside.
| Fl_Window (int w, int h, const char *title=0)
| Creates a window from the given width `w`, height `h`, and `title`.
| Fl_Window (int x, int y, int w, int h, const char *title=0)
| Creates a window from the given position (x, y), size (w, h) and title.
void | free_position ()
| Undoes the effect of a previous resize() or show() so that the next time show() is called the window manager is free to position the window.
void | fullscreen ()
| Makes the window completely fill one or more screens, without any window manager border visible.
unsigned int | fullscreen_active () const
| Returns non zero if FULLSCREEN flag is set, 0 otherwise.
void | fullscreen_off ()
| Turns off any side effects of fullscreen().
void | fullscreen_off (int X, int Y, int W, int H)
| Turns off any side effects of fullscreen() and does resize(x,y,w,h).
void | fullscreen_screens (int top, int bottom, int left, int right)
| Sets which screens should be used when this window is in fullscreen mode.
uchar | get_size_range (int *minw, int *minh, int *maxw=NULL, int *maxh=NULL, int *dw=NULL, int *dh=NULL, int *aspect=NULL)
| Gets the allowable range to which the user can resize this window.
int | handle (int) FL_OVERRIDE
| Handles the specified event.
void | hide () FL_OVERRIDE
| Removes the window from the screen.
void | hotspot (const Fl_Widget &p, int offscreen=0)
| See void Fl_Window::hotspot(int x, int y, int offscreen = 0).
void | hotspot (const Fl_Widget *, int offscreen=0)
| See void Fl_Window::hotspot(int x, int y, int offscreen = 0).
void | hotspot (int x, int y, int offscreen=0)
| Positions the window so that the mouse is pointing at the given position, or at the center of the given widget, which may be the window itself.
const void * | icon () const
| Gets the current icon window target dependent data.
void | icon (const Fl_RGB_Image *)
| Sets or resets a single window icon.
void | icon (const void *ic)
| Platform-specific method to set the window icon usable on Windows and X11 only.
void | iconize ()
| Iconifies the window.
const char * | iconlabel () const
| See void Fl_Window::iconlabel(const char*).
void | iconlabel (const char *)
| Sets the icon label.
void | icons (const Fl_RGB_Image *[], int)
| Sets the window icons.
void | icons (HICON big_icon, HICON small_icon)
| Sets the window icons using HICON handles (Windows platform only).
const char * | label () const
| See void Fl_Window::label(const char*).
void | label (const char *)
| Sets the window title bar label.
void | label (const char *label, const char *iconlabel)
| Sets the icon label.
void | make_current ()
| Sets things up so that the drawing functions in <FL/fl_draw.H> will go into this window.
void | maximize ()
| Maximizes a top-level window to its current screen.
unsigned int | maximize_active () const
| Returns whether the window is currently maximized.
unsigned int | menu_window () const
| Returns true if this window is a menu window.
unsigned int | modal () const
| Returns true if this window is modal.
unsigned int | non_modal () const
| Returns true if this window is modal or non-modal.
fl_uintptr_t | os_id ()
| Returns a platform-specific identification of a shown window, or 0 if not shown.
unsigned int | override () const
| Returns non zero if OVERRIDE flag is set, 0 otherwise.
void | resize (int X, int Y, int W, int H) FL_OVERRIDE
| Changes the size and position of the window.
int | screen_num ()
| The number of the screen containing the mapped window.
void | screen_num (int screen_num)
| Set the number of the screen where to map the window.
void | set_menu_window ()
| Marks the window as a menu window.
void | set_modal ()
| A "modal" window, when shown(), will prevent any events from being delivered to other windows in the same program, and will also remain on top of the other windows (if the X window manager supports the "transient for" property).
void | set_non_modal ()
| A "non-modal" window (terminology borrowed from Microsoft Windows) acts like a modal() one in that it remains on top, but it has no effect on event delivery.
void | set_override ()
| Activates the flags NOBORDER|OVERRIDE.
void | set_tooltip_window ()
| Marks the window as a tooltip window.
const Fl_Image * | shape ()
| Returns the image controlling the window shape or NULL.
void | shape (const Fl_Image &b)
| Set the window's shape with an Fl_Image.
void | shape (const Fl_Image *img)
| Assigns a non-rectangular shape to the window.
void | show () FL_OVERRIDE
| Puts the window on the screen.
void | show (int argc, char **argv)
| Puts the window on the screen with show() and parses command-line arguments.
int | shown ()
| Returns non-zero if show() has been called (but not hide() ).
void | size_range (int minw, int minh, int maxw=0, int maxh=0, int dw=0, int dh=0, int aspect=0)
| Sets the allowable range to which the user can resize this window.
unsigned int | tooltip_window () const
| Returns true if this window is a tooltip window.
void | un_maximize ()
| Returns a previously maximized top-level window to its previous size.
void | wait_for_expose ()
| Waits for the window to be displayed after calling show().
int | x_root () const
| Gets the x position of the window on the screen.
const char * | xclass () const
| Returns the xclass for this window, or a default.
void | xclass (const char *c)
| Sets the xclass for this window.
int | y_root () const
| Gets the y position of the window on the screen.
virtual | ~Fl_Window ()
| The destructor also deletes all the children.
Public Member Functions inherited from Fl_Group
Fl_Widget *& | _ddfdesign_kludge ()
| This is for forms compatibility only.
void | add (Fl_Widget &)
| The widget is removed from its current group (if any) and then added to the end of this group.
void | add (Fl_Widget *o)
| See void Fl_Group::add(Fl_Widget &w).
void | add_resizable (Fl_Widget &o)
| Adds a widget to the group and makes it the resizable widget.
Fl_Widget *const * | array () const
| Returns a pointer to the array of children.
Fl_Group const * | as_group () const FL_OVERRIDE
Fl_Group * | as_group () FL_OVERRIDE
| Returns an Fl_Group pointer if this widget is an Fl_Group.
void | begin ()
| Sets the current group so you can build the widget tree by just constructing the widgets.
Fl_Widget * | child (int n) const
| Returns the n'th child.
int | children () const
| Returns how many child widgets the group has.
void | clear ()
| Deletes all child widgets from memory recursively.
unsigned int | clip_children ()
| Returns the current clipping mode.
void | clip_children (int c)
| Controls whether the group widget clips the drawing of child widgets to its bounding box.
virtual int | delete_child (int n)
| Removes the widget at `index` from the group and deletes it.
void | end ()
| Exactly the same as current(this->parent()).
int | find (const Fl_Widget &o) const
| See int Fl_Group::find(const Fl_Widget *w) const.
int | find (const Fl_Widget *) const
| Searches the child array for the widget and returns the index.
| Fl_Group (int, int, int, int, const char *=0)
| Creates a new Fl_Group widget using the given position, size, and label string.
void | focus (Fl_Widget *W)
void | forms_end ()
| This is for forms compatibility only.
void | init_sizes ()
| Resets the internal array of widget sizes and positions.
void | insert (Fl_Widget &, int i)
| The widget is removed from its current group (if any) and then inserted into this group.
void | insert (Fl_Widget &o, Fl_Widget *before)
| This does insert(w, find(before)).
void | remove (Fl_Widget &)
| Removes a widget from the group but does not delete it.
void | remove (Fl_Widget *o)
| Removes the widget `o` from the group.
void | remove (int index)
| Removes the widget at `index` from the group but does not delete it.
Fl_Widget * | resizable () const
| Returns the group's resizable widget.
void | resizable (Fl_Widget &o)
| Sets the group's resizable widget.
void | resizable (Fl_Widget *o)
| The resizable widget defines both the resizing box and the resizing behavior of the group and its children.
virtual | ~Fl_Group ()
| The destructor also deletes all the children.
Public Member Functions inherited from Fl_Widget
void | _clear_fullscreen ()
void | _set_fullscreen ()
void | activate ()
| Activates the widget.
unsigned int | active () const
| Returns whether the widget is active.
int | active_r () const
| Returns whether the widget and all of its parents are active.
Fl_Align | align () const
| Gets the label alignment.
void | align (Fl_Align alignment)
| Sets the label alignment.
long | argument () const
| Gets the current user data (long) argument that is passed to the callback function.
void | argument (long v)
| Sets the current user data (long) argument that is passed to the callback function.
virtual class Fl_Gl_Window * | as_gl_window ()
| Returns an Fl_Gl_Window pointer if this widget is an Fl_Gl_Window.
virtual class Fl_Gl_Window const * | as_gl_window () const
void | bind_deimage (Fl_Image *img)
| Sets the image to use as part of the widget label when in the inactive state.
void | bind_deimage (int f)
| Bind the inactive image to the widget, so the widget will delete the image when it is no longer needed.
void | bind_image (Fl_Image *img)
| Sets the image to use as part of the widget label when in the active state.
void | bind_image (int f)
| Bind the image to the widget, so the widget will delete the image when it is no longer needed.
Fl_Boxtype | box () const
| Gets the box type of the widget.
void | box (Fl_Boxtype new_box)
| Sets the box type for the widget.
Fl_Callback_p | callback () const
| Gets the current callback function for the widget.
void | callback (Fl_Callback *cb)
| Sets the current callback function for the widget.
void | callback (Fl_Callback *cb, Fl_Callback_User_Data *p, bool auto_free)
| Sets the current callback function and managed user data for the widget.
void | callback (Fl_Callback *cb, void *p)
| Sets the current callback function and data for the widget.
void | callback (Fl_Callback0 *cb)
| Sets the current callback function for the widget.
void | callback (Fl_Callback1 *cb, long p=0)
| Sets the current callback function for the widget.
unsigned int | changed () const
| Checks if the widget value changed since the last callback.
void | clear_active ()
| Marks the widget as inactive without sending events or changing focus.
void | clear_changed ()
| Marks the value of the widget as unchanged.
void | clear_damage (uchar c=0)
| Clears or sets the damage flags.
void | clear_output ()
| Sets a widget to accept input.
void | clear_visible ()
| Hides the widget.
void | clear_visible_focus ()
| Disables keyboard focus navigation with this widget.
Fl_Color | color () const
| Gets the background color of the widget.
void | color (Fl_Color bg)
| Sets the background color of the widget.
void | color (Fl_Color bg, Fl_Color sel)
| Sets the background and selection color of the widget.
Fl_Color | color2 () const
| For back compatibility only.
void | color2 (unsigned a)
| For back compatibility only.
int | contains (const Fl_Widget *w) const
| Checks if w is a child of this widget.
void | copy_label (const char *new_label)
| Sets the current label.
void | copy_tooltip (const char *text)
| Sets the current tooltip text.
uchar | damage () const
| Returns non-zero if draw() needs to be called.
void | damage (uchar c)
| Sets the damage bits for the widget.
void | damage (uchar c, int x, int y, int w, int h)
| Sets the damage bits for an area inside the widget.
int | damage_resize (int, int, int, int)
| Internal use only.
void | deactivate ()
| Deactivates the widget.
Fl_Image * | deimage ()
| Gets the image that is used as part of the widget label when in the inactive state.
const Fl_Image * | deimage () const
| Gets the image that is used as part of the widget label when in the inactive state.
void | deimage (Fl_Image &img)
| Sets the image to use as part of the widget label when in the inactive state.
void | deimage (Fl_Image *img)
| Sets the image to use as part of the widget label when in the inactive state.
int | deimage_bound () const
| Returns whether the inactive image is managed by the widget.
void | do_callback (Fl_Callback_Reason reason=FL_REASON_UNKNOWN)
| Calls the widget callback function with default arguments.
void | do_callback (Fl_Widget *widget, long arg, Fl_Callback_Reason reason=FL_REASON_UNKNOWN)
| Calls the widget callback function with arbitrary arguments.
void | do_callback (Fl_Widget *widget, void *arg=0, Fl_Callback_Reason reason=FL_REASON_UNKNOWN)
| Calls the widget callback function with arbitrary arguments.
void | draw_label (int, int, int, int, Fl_Align) const
| Draws the label in an arbitrary bounding box with an arbitrary alignment.
int | h () const
| Gets the widget height.
int | horizontal_label_margin ()
| Get the spacing between the label and the horizontal edge of the widget.
void | horizontal_label_margin (int px)
| Set the spacing between the label and the horizontal edge of the widget.
Fl_Image * | image ()
| Gets the image that is used as part of the widget label when in the active state.
const Fl_Image * | image () const
| Gets the image that is used as part of the widget label when in the active state.
void | image (Fl_Image &img)
| Sets the image to use as part of the widget label when in the active state.
void | image (Fl_Image *img)
| Sets the image to use as part of the widget label when in the active state.
int | image_bound () const
| Returns whether the image is managed by the widget.
int | inside (const Fl_Widget *wgt) const
| Checks if this widget is a child of `wgt`.
int | is_label_copied () const
| Returns whether the current label was assigned with copy_label().
const char * | label () const
| Gets the current label text.
void | label (const char *text)
| Sets the current label pointer.
void | label (Fl_Labeltype a, const char *b)
| Shortcut to set the label text and type in one call.
int | label_image_spacing ()
| Return the gap size between the label and the image.
void | label_image_spacing (int gap)
| Set the gap between the label and the image in pixels.
Fl_Color | labelcolor () const
| Gets the label color.
void | labelcolor (Fl_Color c)
| Sets the label color.
Fl_Font | labelfont () const
| Gets the font to use.
void | labelfont (Fl_Font f)
| Sets the font to use.
Fl_Fontsize | labelsize () const
| Gets the font size in pixels.
void | labelsize (Fl_Fontsize pix)
| Sets the font size in pixels.
Fl_Labeltype | labeltype () const
| Gets the label type.
void | labeltype (Fl_Labeltype a)
| Sets the label type.
void | measure_label (int &ww, int &hh) const
| Sets width ww and height hh accordingly with the label size.
bool | needs_keyboard () const
| Returns whether this widget needs a keyboard.
void | needs_keyboard (bool needs)
| Sets whether this widget needs a keyboard.
unsigned int | output () const
| Returns if a widget is used for output only.
Fl_Group * | parent () const
| Returns a pointer to the parent widget.
void | parent (Fl_Group *p)
| Internal use only - "for hacks only".
void | position (int X, int Y)
| Repositions the window or widget.
void | redraw ()
| Schedules the drawing of the widget.
void | redraw_label ()
| Schedules the drawing of the label.
Fl_Color | selection_color () const
| Gets the selection color.
void | selection_color (Fl_Color a)
| Sets the selection color.
void | set_active ()
| Marks the widget as active without sending events or changing focus.
void | set_changed ()
| Marks the value of the widget as changed.
void | set_output ()
| Sets a widget to output only.
void | set_visible ()
| Makes the widget visible.
void | set_visible_focus ()
| Enables keyboard focus navigation with this widget.
int | shortcut_label () const
| Returns whether the widget's label uses '&' to indicate shortcuts.
void | shortcut_label (int value)
| Sets whether the widget's label uses '&' to indicate shortcuts.
void | size (int W, int H)
| Changes the size of the widget.
int | take_focus ()
| Gives the widget the keyboard focus.
unsigned int | takesevents () const
| Returns if the widget is able to take events.
int | test_shortcut ()
| Returns true if the widget's label contains the entered '&x' shortcut.
const char * | tooltip () const
| Gets the current tooltip text.
void | tooltip (const char *text)
| Sets the current tooltip text.
Fl_Window * | top_window () const
| Returns a pointer to the top-level window for the widget.
Fl_Window * | top_window_offset (int &xoff, int &yoff) const
| Finds the x/y offset of the current widget relative to the top-level window.
uchar | type () const
| Gets the widget type.
void | type (uchar t)
| Sets the widget type.
int | use_accents_menu ()
| Returns non zero if MAC_USE_ACCENTS_MENU flag is set, 0 otherwise.
void * | user_data () const
| Gets the user data for this widget.
void | user_data (Fl_Callback_User_Data *v, bool auto_free)
| Sets the user data for this widget.
void | user_data (void *v)
| Sets the user data for this widget.
int | vertical_label_margin ()
| Get the spacing between the label and the vertical edge of the widget.
void | vertical_label_margin (int px)
| Set the spacing between the label and the vertical edge of the widget.
unsigned int | visible () const
| Returns whether a widget is visible.
unsigned int | visible_focus () const
| Checks whether this widget has a visible focus.
void | visible_focus (int v)
| Modifies keyboard focus navigation.
int | visible_r () const
| Returns whether a widget and all its parents are visible.
int | w () const
| Gets the widget width.
Fl_When | when () const
| Returns the conditions under which the callback is called.
void | when (uchar i)
| Sets the flags used to decide when a callback is called.
Fl_Window * | window () const
| Returns a pointer to the nearest parent window up the widget hierarchy.
int | x () const
| Gets the widget position in its window.
int | y () const
| Gets the widget position in its window.
virtual | ~Fl_Widget ()
| Destroys the widget.

## Additional Inherited Members
Public Types inherited from Fl_Window
typedef struct HICON__ * | HICON
Static Public Member Functions inherited from Fl_Window
static Fl_Window * | current ()
| Returns the last window that was made current.
static void | default_callback (Fl_Window *, void *v)
| Back compatibility: Sets the default callback v for win to call on close event.
static void | default_icon (const Fl_RGB_Image *)
| Sets a single default window icon.
static void | default_icons (const Fl_RGB_Image *[], int)
| Sets the default window icons.
static void | default_icons (HICON big_icon, HICON small_icon)
| Sets the default window icons (Windows platform only).
static const char * | default_xclass ()
| Returns the default xclass.
static void | default_xclass (const char *)
| Sets the default window xclass.
static bool | is_a_rescale ()
| Returns true when a window is being rescaled.
static char | show_next_window_iconic ()
| Returns the static flag whether the next window should be opened iconified.
static void | show_next_window_iconic (char stat)
| Sets a static flag whether the next window should be opened iconified.
Static Public Member Functions inherited from Fl_Group
static Fl_Group * | current ()
| Returns the currently active group.
static void | current (Fl_Group *g)
| Sets the current group.
Static Public Member Functions inherited from Fl_Widget
static void | default_callback (Fl_Widget *widget, void *data)
| The default callback for all widgets that don't set a callback.
static unsigned int | label_shortcut (const char *t)
| Returns the Unicode value of the '&x' shortcut in a given text.
static int | test_shortcut (const char *, const bool require_alt=false)
| Returns true if the given text `t` contains the entered '&x' shortcut.
Protected Types inherited from Fl_Widget
enum | { INACTIVE = 1<<0 , INVISIBLE = 1<<1 , OUTPUT = 1<<2 , NOBORDER = 1<<3 , FORCE_POSITION = 1<<4 , NON_MODAL = 1<<5 , SHORTCUT_LABEL = 1<<6 , CHANGED = 1<<7 , OVERRIDE = 1<<8 , VISIBLE_FOCUS = 1<<9 , COPIED_LABEL = 1<<10 , CLIP_CHILDREN = 1<<11 , MENU_WINDOW = 1<<12 , TOOLTIP_WINDOW = 1<<13 , MODAL = 1<<14 , NO_OVERLAY = 1<<15 , GROUP_RELATIVE = 1<<16 , COPIED_TOOLTIP = 1<<17 , FULLSCREEN = 1<<18 , MAC_USE_ACCENTS_MENU = 1<<19 , NEEDS_KEYBOARD = 1<<20 , IMAGE_BOUND = 1<<21 , DEIMAGE_BOUND = 1<<22 , AUTO_DELETE_USER_DATA = 1<<23 , MAXIMIZED = 1<<24 , POPUP = 1<<25 , USERFLAG3 = 1<<29 , USERFLAG2 = 1<<30 , USERFLAG1 = 1<<31 }
| flags possible values enumeration. More...
Protected Member Functions inherited from Fl_Window
void | default_size_range ()
| Protected method to calculate the default size range of a window.
void | draw () FL_OVERRIDE
| Draws the widget.
int | force_position () const
| Returns the internal state of the window's `FORCE_POSITION` flag.
void | force_position (int force)
| Sets an internal flag that tells FLTK and the window manager to honor position requests.
void | free_icons ()
| Deletes all icons previously attached to the window.
int | is_resizable ()
| Protected method to determine whether a window is resizable.
Protected Member Functions inherited from Fl_Group
Fl_Rect * | bounds ()
| Returns the internal array of widget sizes and positions.
void | draw_child (Fl_Widget &widget) const
| Forces a child to redraw.
void | draw_children ()
| Draws all children of the group.
void | draw_outside_label (const Fl_Widget &widget) const
| Parents normally call this to draw outside labels of child widgets.
virtual int | on_insert (Fl_Widget *, int)
| Allow derived groups to act when a widget is added as a child.
virtual int | on_move (int, int)
| Allow derived groups to act when a widget is moved within the group.
virtual void | on_remove (int)
| Allow derived groups to act when a child widget is removed from the group.
int * | sizes ()
| Returns the internal array of widget sizes and positions.
void | update_child (Fl_Widget &widget) const
| Draws a child only if it needs it.
Protected Member Functions inherited from Fl_Widget
void | clear_flag (unsigned int c)
| Clears a flag in the flags mask.
void | draw_backdrop () const
| If FL_ALIGN_IMAGE_BACKDROP is set, the image or deimage will be drawn.
void | draw_box () const
| Draws the widget box according its box style.
void | draw_box (Fl_Boxtype t, Fl_Color c) const
| Draws a box of type t, of color c at the widget's position and size.
void | draw_box (Fl_Boxtype t, int x, int y, int w, int h, Fl_Color c) const
| Draws a box of type t, of color c at the position X,Y and size W,H.
void | draw_focus () const
| Draws a focus rectangle around the widget.
void | draw_focus (Fl_Boxtype t, int X, int Y, int W, int H) const
| Draws a focus rectangle around the widget.
void | draw_focus (Fl_Boxtype t, int x, int y, int w, int h, Fl_Color bg) const
| Draws a focus box for the widget at the given position and size.
void | draw_label () const
| Draws the widget's label at the defined label position.
void | draw_label (int, int, int, int) const
| Draws the label in an arbitrary bounding box.
| Fl_Widget (int x, int y, int w, int h, const char *label=0L)
| Creates a widget at the given position and size.
unsigned int | flags () const
| Gets the widget flags mask.
void | h (int v)
| Internal use only.
void | set_flag (unsigned int c)
| Sets a flag in the flags mask.
void | w (int v)
| Internal use only.
void | x (int v)
| Internal use only.
void | y (int v)
| Internal use only.
Static Protected Attributes inherited from Fl_Window
static Fl_Window * | current_
| Stores the last window that was made current.

## Detailed Description

This is the same as Fl_Window.

However, it is possible that some implementations will provide double-buffered windows by default. This subclass can be used to force single-buffering. This may be useful for modifying existing programs that use incremental update, or for some types of image data, such as a movie flipbook.

## Member Function Documentation

## ◆ flush()

void Fl_Single_Window::flush | ( |  | ) |
| inlinevirtual

Same as Fl_Window::flush().

Reimplemented from Fl_Window.

## ◆ show()

void Fl_Single_Window::show | ( |  | ) |
| virtual

Makes a widget visible.

An invisible widget never gets redrawn and does not get keyboard or mouse events, but can receive a few other events like FL_SHOW.

The visible() method returns true if the widget is set to be visible. The visible_r() method returns true if the widget and all of its parents are visible. A widget is only visible if visible() is true on it and all of its parents.

Changing it will send FL_SHOW or FL_HIDE events to the widget. Do not change it if the parent is not visible, as this will send false FL_SHOW or FL_HIDE events to the widget. redraw() is called if necessary on this or the parent.

See also
  hide(), visible(), visible_r()

Reimplemented from Fl_Widget.

The documentation for this class was generated from the following files:

- Fl_Single_Window.H
- Fl_Single_Window.cxx