Positioning of Windows that takes into account usable area, i.e. total area less the system toolbar
management of multi-threaded logging output in terminal console
Execution of events sent to shared instance of EL_MAIN_THREAD_EVENT_REQUEST_QUEUE by main GUI thread.

EL_VISION_2_USER_INTERFACE

Instance of EL_VISION_2_APPLICATION that creates a titled application window conforming to EL_TITLED_WINDOW

Further Information

Click on class link to see client examples.

Override to EV_FONT_IMP fixing issue of setting font height in pixels. This version is compiled only if ISE_C_COMPILER = msc_vc140. It scales the font height differently if the deployment platform is Windows 10

EL_SCREEN_IMP

Windows implemenation of interface EL_SCREEN_I

imp_mswin/screen

EL_USEABLE_SCREEN_IMP

Windows implementation of EL_USEABLE_SCREEN_I

imp_mswin/support

EL_FONT_FAMILIES_IMP

Windows implementation of EL_FONT_FAMILIES_I

EL_GDI_BITMAP_ROUTINES

GDI+ bitmap routines accessible via EL_MODULE_GDI_BITMAP

EL_MODULE_GDI_BITMAP

Shared instance of EL_GDI_BITMAP_ROUTINES

EL_PANGO_FONT_FAMILIES_IMP

Windows implementation of EL_FONT_FAMILIES_I for fonts compatible with Cairo Pango API compatible

EL_STOCK_COLORS_IMP

Windows implementation of EL_STOCK_COLORS_I interface

EL_WEL_FONT_ENUMERATOR_IMP

Extend version of EV_WEL_FONT_ENUMERATOR_IMP

imp_unix/c_interface

EL_GTK_2_C_API

GTK2 C interface

EL_X11_COLOR

X11 color structure

typedef struct {
   unsigned long pixel;   /* pixel value */
   unsigned short red, green, blue;   /* rgb values */
   char flags;            /* DoRed, DoGreen, DoBlue */
   char pad;
} XColor;

EL_X11_C_API

Functions from X11/Xlib.h

EL_X11_DISPLAY

X11 default display

EL_X11_DISPLAY_OUTPUT_INFO

Class based on C-struct

typedef struct _XRROutputInfo {
   Time       timestamp;
   RRCrtc       crtc;
   char       *name;
   int          nameLen;
   unsigned long   mm_width;
   unsigned long   mm_height;
   Connection       connection;
   SubpixelOrder   subpixel_order;
   int          ncrtc;
   RRCrtc       *crtcs;
   int          nclone;
   RROutput       *clones;
   int          nmode;
   int          npreferred;
   RRMode       *modes;
} XRROutputInfo;

Further Information

Click on class link to see notes.

EL_X11_EXTENSIONS_C_API

Functions from X11/extensions/Xrandr.h

EL_X11_IMAGE

Owned XImage structure

EL_X11_SCREEN_RESOURCES

Class based on C-struct

typedef struct _XRRScreenResources {
   Time   timestamp;
   Time   configTimestamp;
   int      ncrtc;
   RRCrtc   *crtcs;
   int      noutput;
   RROutput   *outputs;
   int      nmode;
   XRRModeInfo   *modes;
} XRRScreenResources;

imp_unix/interface

EL_FONT_IMP

Unix counterpart to Windows EL_FONT_IMP which fixes a problem settting the height in pixels

EL_SCREEN_IMP

Unix implemenation of interface EL_SCREEN_I

imp_unix/screen

EL_USEABLE_SCREEN_IMP

Unix implementation of EL_USEABLE_SCREEN_I

imp_unix/support

EL_FONT_FAMILIES_IMP

Unix implementation of EL_FONT_FAMILIES_I

EL_GTK_ROUTINES

GTK routines accessible via EL_MODULE_GTK

EL_MODULE_GTK

Access to shared instance of EL_GTK_ROUTINES

EL_PANGO_FONT_FAMILIES_IMP

Unix implementation of EL_FONT_FAMILIES_I for fonts compatible with Cairo Pango API

EL_STOCK_COLORS_IMP

Unix implementation of EL_STOCK_COLORS_I interface

interface

EL_FONT_I

Font i

EL_PIXMAP_I

EiffelVision pixmap. Implementation interface.

EL_SCREEN_I

Screen i

kernel

EL_COLOR

Color

kernel/events

EL_HAND_STYLE_POINTER_ACTION

Changes pointer style to a hand icon when pointer enters widget

EL_WINDOW_DRAG

Allows any EV_WIDGET to be used as handle to drag a window to a new position

kernel/key

EL_KEY

Represents keyboard key using a virtual key code. code can be any of the constant values defined in EV_KEY_CONSTANTS.

EL_KEYBOARD_ACCELERATED

Window that responds to keyboard acceleration keys

EL_KEYBOARD_SHORTCUTS

Adds keyboard shortcuts to EV_WINDOW.accelerators

EL_KEY_MODIFIER_CONSTANTS

Key modifier constants that can be combined with NATURAL_32.bit_xor

EL_KEY_TEXTS

Names of punctuation and control keys accessible via EL_SHARED_KEY_TEXTS

EL_SHARED_KEY_CONSTANTS

Shared instance of EV_KEY_CONSTANTS

EL_SHARED_KEY_TEXTS

Shared KEY texts

kernel/properties

EL_DESELECTABLE_WIDGET

Deselectable widget

EL_RADIO_MENU_DESELECTOR

Helper class to deselect radio items

kernel/screen

EL_ADJUSTED_DISPLAY_SIZE

Read and writes user adjusted display size. Typically during installation the user adjusts a window to A5 paper size. This is used to accurately determine the display size in the event it cannot be accurately determined by system calls.

EL_MODULE_SCREEN

Module screen

Further Information

Click on class link to see client examples.

EL_PAPER_DIMENSIONS

A4/A5 paper dimensions as reals and string tuple

EL_SCREEN

Screen

EL_SCREEN_RESOLUTION_SCALING

Screen resolution scaling

EL_SHARED_PAPER_DIMENSIONS

Shared instance of EL_PAPER_DIMENSIONS

EL_SHARED_USEABLE_SCREEN

Shared instance of EL_USEABLE_SCREEN_IMP

EL_USEABLE_SCREEN_I

Finds the useable screen area excluding the taskbar etc

kernel/text

EL_ALIGNED_TEXT

Text aligned within a rectangle

EL_PASSPHRASE_FIELD

Passphrase field

EL_TEXTABLE

Textable widget settable from string of type ZSTRING

EL_TEXT_ALIGNMENT

Text alignment

EL_TEXT_RECTANGLE

Container for wrapping text into a rectangular area before rendering it with a drawing command

Supports

* Multiple simultaneous font sizes
* Word wrapping
* Squeezing of text into available space by adjusting the font size
* Rotation of text area

EL_WORD_WRAPPABLE

Word wrappable

kernel/text/style

EL_FONT

Font

Further Information

Click on class link to see client examples.

EL_FONT_KEY

Hashable font key based on 5 characteristics

Further Information

Click on class link to see notes.

Click on class link to see client examples.

EL_MODULE_COLOR

Shared instance of class EV_STOCK_COLORS

Further Information

Click on class link to see client examples.

EL_MODULE_TEXT

Shared global instance of object conforming to EL_RENDERED_TEXT_ROUTINES

Further Information

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EL_MODULE_VISION_2

Shared instance of class EL_VISION_2_FACTORY

Further Information

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EL_MODULE_WIDGET

Shared instance of class EL_WIDGET_ROUTINES

Further Information

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EL_HORIZONTAL_SELECTION

Horizontal selection

EL_RENDERED_TEXT_ROUTINES

Vision 2 giving access to various shared objects and routines related to

Fonts and font string measurement
Word wrapping
Color code conversion
Action management

Click on class link to see client examples.