Windows

Defines window objects. A window is a user interface object that is the basic building block for creating an interface, because all user interaction occurs through windows. Windows can be manipulated in almost limitless combinations to build a user interface to the most complex application.

Establishing a Window

Call up the Development Center with the DC command, select WINDOWS from the OBJECTS drop-down menu, and use the tools of the Development Center to define the desired window. The Development Center calls up the Screen Painter for you and automatically CREATEs the window. Another way is to "paint" the window by calling up the Screen Painter directly:

window define winname [in dirname]

The Screen Painter adds appropriate entries to the Windows entity set thus defining the window.

When you are satisfied with the window, exit the Screen Painter, and answer OK to the prompts to save the window.

Fields of Windows Entity Set

Attributes	Description
WinName	Name of the window
WNum	Identification number of the window
Row, Col	Position of the window (characters)
Wdth, Hght	Size of the window (characters)
DM	Display mode of the window
BC	Fill (background) color of the window (pre-defined)
FC	Pen (foreground) color of the window (pre-defined)
Fill	Fill character for blank spaces in the physical window
Bord	Whether the window has a border
BordDM	Display mode of the window border
BordFC	Pen (foreground) color of the window border (pre-defined)
BordBC	Fill (background) color of the window border (pre-defined)
BordDefault	Characters for a text-class window's border
DirName	Application directory location of the window
WinType	User-assigned classification for the window
WdgBorderStyle	The type of border the window has
WdgCaption	Whether the window has a caption bar
WdgResize	Whether the window can be resized
WdgMinimize	Whether the window can be minimized
WdgMaximize	Whether the window can be maximized
WdgSysMenu	Whether the window has a system menu
WdgPSWdth, WdgPSHght	Logical size of the window (characters)
WdgPSRow, WdgPSCol	Position of the physical window with regard to its logical dimensions
WdgModal	"Modality" of the window
WdgScrollBars	Whether the window has scroll bars
WdgClass	Class ("type") of window
WdgSubClass	Subclass of window
WdgRow, WdgCol	Position of the window in its parent (twips)
WdgWdth, WdgHght	Physical size of the window (twips)
WdgFont, WdgFontSize	The font and point size to be used when displaying text in the window
WinOwnerName	Name of the window's parent
WinOwnerDirName	Application directory location of the window's parent
WdgAlwaysOnTop	Whether the window must always appear atop other windows
WdgFCRed, WdgFCGreen, WdgFCBlue	Pen (foreground) color of the window (custom blended)
WdgBCRed, WdgBCGreen, WdgBCBlue	Fill (background) color of the window (custom blended)
WdgLostFocus	Whether the window responds to a Lost Focus event with a callback
WdgGotFocus	Whether the window responds to a Got Focus event with a callback
WdgClosed	Whether the window responds to a Closed event with a callback
WdgHMargin, WdgVMargin	Interior margins of the window (twips)
WdgMinimized	Whether the window has the minimized state
WdgMaximized	Whether the window has the maximized state
WdgMoved	Whether the window has the moved state
WdgResized	Whether the window has the resized state
WdgRestored	Whether the window has the restored state
WdgLabel	The text of the window's caption
WdgIcon	The icon used to represent the minimized window
WdgMove	Whether the window can be moved
WdgAutoSize	"Autosize" status of the window
HMargin, VMargin	Interior margins of the window (characters)
WdgAvailable	"Availability" of the window for end-user interaction
WdgTag	Alphanumeric identifier for the window
WdgStyle	Style of window
ObjectKey	A unique identifier assigned by the Development Center