Screen functions

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

Functions
static int	Fl::h ()
	Returns the height of the screen work area in pixels.
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.
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.
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.
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.
static void	Fl::screen_xywh (int &X, int &Y, int &W, int &H, int n)
	Gets the screen bounding rect for the given screen.
static int	Fl::w ()
	Returns the width of the screen work area in pixels.
static int	Fl::x ()
	Returns the origin of the current screen work area, where 0 indicates the left side of the screen.
static int	Fl::y ()
	Returns the origin of the current screen work area, where 0 indicates the top edge of the screen.

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_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.

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)