Screen functions

fl global screen functions declared in <FL/Fl.H> More...

Functions
static int	Fl::h ()
	Returns the height in pixels of the main screen work area.
static int	Fl::screen_count ()
	Gets the number of available screens.
static void	Fl::screen_dpi (float &h, float &v, int n=0)
	Gets the screen resolution in dots-per-inch for the given screen. More...
static int	Fl::screen_num (int x, int y)
	Gets the screen number of a screen that contains the specified screen position x, y. More...
static int	Fl::screen_num (int x, int y, int w, int h)
	Gets the screen number for the screen which intersects the most with the rectangle defined by x, y, w, h. More...
static void	Fl::screen_work_area (int &X, int &Y, int &W, int &H)
	Gets the bounding box of the work area of the screen that contains the mouse pointer. More...
static void	Fl::screen_work_area (int &X, int &Y, int &W, int &H, int mx, int my)
	Gets the bounding box of the work area of a screen that contains the specified screen position mx, my. More...
static void	Fl::screen_work_area (int &X, int &Y, int &W, int &H, int n)
	Gets the bounding box of the work area of the given screen. More...
static void	Fl::screen_xywh (int &X, int &Y, int &W, int &H)
	Gets the bounding box of a screen that contains the mouse pointer. More...
static void	Fl::screen_xywh (int &X, int &Y, int &W, int &H, int mx, int my)
	Gets the bounding box of a screen that contains the specified screen position mx, my. More...
static void	Fl::screen_xywh (int &X, int &Y, int &W, int &H, int mx, int my, int mw, int mh)
	Gets the screen bounding rect for the screen which intersects the most with the rectangle defined by mx, my, mw, mh. More...
static void	Fl::screen_xywh (int &X, int &Y, int &W, int &H, int n)
	Gets the screen bounding rect for the given screen. More...
static int	Fl::w ()
	Returns the width in pixels of the main screen work area.
static int	Fl::x ()
	Returns the leftmost x coordinate of the main screen work area.
static int	Fl::y ()
	Returns the topmost y coordinate of the main screen work area.

Detailed Description

fl global screen functions declared in <FL/Fl.H>

Function Documentation

screen_dpi()

void Fl::screen_dpi ( float &  h, float &  v, int  n = 0  )

static

Gets the screen resolution in dots-per-inch for the given screen.

Parameters

[out]	h,v	horizontal and vertical resolution
[in]	n	the screen number (0 to Fl::screen_count() - 1)

See also

void screen_xywh(int &x, int &y, int &w, int &h, int mx, int my)

screen_num() [1/2]

int Fl::screen_num ( int  x, int  y  )

static

Gets the screen number of a screen that contains the specified screen position x, y.

Parameters

[in]

x,y

the absolute screen position

screen_num() [2/2]

int Fl::screen_num ( int  x, int  y, int  w, int  h  )

static

Gets the screen number for the screen which intersects the most with the rectangle defined by x, y, w, h.

Parameters

[in]

x,y,w,h

the rectangle to search for intersection with

screen_work_area() [1/3]

static void Fl::screen_work_area ( int &  X, int &  Y, int &  W, int &  H  )

inlinestatic

Gets the bounding box of the work area of the screen that contains the mouse pointer.

Parameters

[out]

X,Y,W,H

the work area bounding box

See also

void screen_work_area(int &x, int &y, int &w, int &h, int mx, int my)

screen_work_area() [2/3]

void Fl::screen_work_area ( int &  X, int &  Y, int &  W, int &  H, int  mx, int  my  )

static

Gets the bounding box of the work area of a screen that contains the specified screen position mx, my.

Parameters

[out]	X,Y,W,H	the work area bounding box
[in]	mx,my	the absolute screen position

screen_work_area() [3/3]

void Fl::screen_work_area ( int &  X, int &  Y, int &  W, int &  H, int  n  )

static

Gets the bounding box of the work area of the given screen.

Parameters

[out]	X,Y,W,H	the work area bounding box
[in]	n	the screen number (0 to Fl::screen_count() - 1)

See also

void screen_xywh(int &x, int &y, int &w, int &h, int mx, int my)

screen_xywh() [1/4]

static void Fl::screen_xywh ( int &  X, int &  Y, int &  W, int &  H  )

inlinestatic

Gets the bounding box of a screen that contains the mouse pointer.

Parameters

[out]

X,Y,W,H

the corresponding screen bounding box

See also

void screen_xywh(int &x, int &y, int &w, int &h, int mx, int my)

screen_xywh() [2/4]

void Fl::screen_xywh ( int &  X, int &  Y, int &  W, int &  H, int  mx, int  my  )

static

Gets the bounding box of a screen that contains the specified screen position mx, my.

Parameters

[out]	X,Y,W,H	the corresponding screen bounding box
[in]	mx,my	the absolute screen position

screen_xywh() [3/4]

void Fl::screen_xywh ( int &  X, int &  Y, int &  W, int &  H, int  mx, int  my, int  mw, int  mh  )

static

Gets the screen bounding rect for the screen which intersects the most with the rectangle defined by mx, my, mw, mh.

Parameters

[out]	X,Y,W,H	the corresponding screen bounding box
[in]	mx,my,mw,mh	the rectangle to search for intersection with

See also

void screen_xywh(int &X, int &Y, int &W, int &H, int n)

screen_xywh() [4/4]

void Fl::screen_xywh ( int &  X, int &  Y, int &  W, int &  H, int  n  )

static

Gets the screen bounding rect for the given screen.

Under MSWindows, Mac OS X, and the Gnome desktop, screen #0 contains the menubar/taskbar

Parameters

[out]	X,Y,W,H	the corresponding screen bounding box
[in]	n	the screen number (0 to Fl::screen_count() - 1)

See also

void screen_xywh(int &x, int &y, int &w, int &h, int mx, int my)