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diff --git a/libXaw/man/Xaw.man b/libXaw/man/Xaw.man new file mode 100644 index 000000000..a1425952b --- /dev/null +++ b/libXaw/man/Xaw.man @@ -0,0 +1,628 @@ +.\" +.\" Copyright (c) 1999 by The XFree86 Project, Inc. +.\" +.\" Permission is hereby granted, free of charge, to any person obtaining a +.\" copy of this software and associated documentation files (the "Software"), +.\" to deal in the Software without restriction, including without limitation +.\" the rights to use, copy, modify, merge, publish, distribute, sublicense, +.\" and/or sell copies of the Software, and to permit persons to whom the +.\" Software is furnished to do so, subject to the following conditions: +.\" +.\" The above copyright notice and this permission notice shall be included in +.\" all copies or substantial portions of the Software. +.\" +.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +.\" IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +.\" FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +.\" THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, +.\" WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF +.\" OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +.\" SOFTWARE. +.\" +.\" Except as contained in this notice, the name of the XFree86 Project shall +.\" not be used in advertising or otherwise to promote the sale, use or other +.\" dealings in this Software without prior written authorization from the +.\" XFree86 Project. +.\" +.\" Author: Paulo César Pereira de Andrade +.\" +.\" $XFree86: xc/lib/Xaw/Xaw.man,v 1.7 2001/11/04 21:16:39 paulo Exp $ +.\" +.de EX +.sp +.nf +.ft CW +.. +.de EE +.ft R +.fi +.sp +.. +.de TQ +.\".br +.ns +.TP \\$1 +.. +.TH Xaw 3 __vendorversion__ +.SH NAME + Xaw \- X Athena Widgets +.SH DESCRIPTION +.B Xaw +is a widget set based on the X Toolkit Intrinsics (Xt) Library. This +release by the X.org Foundation includes additions and modifications +originally made for The XFree86 Project, Inc. This manual page describes +these changes as well as some of the common interfaces between its version +and the previous X Consortium release (Xaw6). +.SH ACTIONS +All of the \fIXaw\fR widgets now have the additional translations +.B call-proc, declare, get-values +and \fBset-values\fP. The syntax for these actions is: +.PP +.I action-name \fP(\fIboolean-expression\fP, \fIarguments\fP) +.PP +\fBAction-name\fP is one of \fIcall-proc\fP, \fIdeclare\fP, +\fIget-values\fP or \fIset-values\fP. +.PP +\fBBoolean-expression\fP is composed with the operators \fI|\fR (or), \fI&\fR +(and), \fI^\fR (xor), and \fI~\fR (not). The operands can be a variable name, +which starts with a \fI$\fR; a resource name without the bindings \fI.\fP +or \fI*\fP; or a constant name, including \fImine\fP (event->xany.window +== XtWindow(widget)), \fIfaked\fP (event->xany.send_event != 0), \fItrue\fP (1) +and \fIfalse\fP (0). +.PP +\fBArguments\fP are self-explanatory; when starting with a \fI$\fP they name +a variable, otherwise, they indicate a resource name. +.TP 8 +.B call-proc \fP(\fIboolean-expression\fP, \fIprocedure-name\fP) +This action allows the evaluation of a boolean expression in the first +parameter before calling a action procedure. The procedure is only called +if the expression evaluates as true. Example: +.EX +call-proc("$inside & $pressed", notify) +.EE +.TP 8 +.B declare \fP(\fIboolean-expression\fP, \fIvariable\fP, \fIvalue\fP, ...) +This action is used to create new variables or change their values. Any +number of variable-value tuples may be specified. Example: +.EX +declare(1, $pressed, 1) +.EE +.TP 8 +.B get-values \fP(\fIboolean-expression\fP, \fIvariable\fP, \fIvalue\fP, ...) +This action reads a widget resource value into a variable. Any number of +variable-value tuples may be specified. Example: +.EX +get-values(1, $fg, foreground, $bg, background) +.EE +.TP 8 +.B set-values \fP(\fIboolean-expression\fP, \fIvariable\fP, \fIvalue\fP, ...) +This action sets a widget resource to the given value, which may be a +variable. Any number of variable-value tuples may be specified. Example: +.EX +set-values(1, foreground, $bg, background, $fg) +.EE +.PP +Here is a sample translation to make a label widget behave like a button: +.PP +.nf +<Map>: get-values(1, $fg, foreground, $bg, background)\en\e +<Btn1Down>: set-values(1, foreground, yellow, background, gray30)\en\e +<Btn1Up>: set-values(1, foreground, $fg, background, $bg) +.fi +.SH DISPLAY LISTS +All of the \fBXaw\fP widgets have now the additional resource +\fIdisplayList\fP. This resource allows drawing the widget decorations +using commands embedded in a resource string. The displayList resource has +the syntax: +.PP +\fI[class-name:]function-name arguments[[{;\en}]...]\fP +.PP +\fBClass-name\fP is any registered set of functions to draw in the widget. +Currently the only existing class is \fIxlib\fP, which provides access to +the Xlib drawing primitives. +.PP +\fBFunction-name\fP is the drawing or configuration function to be called, +described bellow. +.PP +\fBArguments\fP may be anything suitable to the displayList function being +called. When the function requires a coordinate, the syntax is +\fI{+-}<integer>\fP or \fI<integer>/<integer>\fP. Examples: +.nf + +0,+0 top, left + -0,-0 bottom, right + -+10,-+10 bottom+10, right+10 + +0,1/2 left, vertical-center +.fi +.TP 8 +.B arc-mode \fPmode +Sets the arc mode. Accepted \fImode\fPs are "pieslice" and "chord", which +set the arc to ArcPieSlice or ArcChord, respectively. Example: +.EX +arc-mode chord +.EE +.TP 8 +.B bg \fPcolor-spec +.TQ +.B background \fPcolor-spec +Sets the background color. \fIcolor-spec\fP must a valid color +specification. Example: +.EX +background red +.EE +.TP 8 +.B cap-style \fPstyle +Sets the cap style. Accepted \fIstyle\fPs are "notlast", "butt", "round", +and "projecting", which set the cap style to CapNotLast, CapBut, CapRound +or CapProjecting, respectively. Example: +.EX +cap-style round +.EE +.TP 8 +.B clip-mask \fPpixmap-spec +Sets the pixmap for the clip mask. Requires a pixmap parameter, as +described in the \fBPIXMAPS\fP section below. Example: +.EX +clip-mask xlogo11 +.EE +.TP 8 +.B clip-origin \fPx,y +Sets the clip x and y origin. Requires two arguments, the x and y +coordinates. Example: +.EX +clip-origin 10,10 +.EE +.TP 8 +.B clip-rects \fPx1,y1,x2,y2 [...,xn,yn] +.TQ +.B clip-rectangles \fPx1,y1,x2,y2 [...,xn,yn] +Sets a list of rectangles to the clip mask. The number of arguments must +be a multiple of four. The arguments are coordinates. The parser +calculates the width and height of the rectangles. Example: +.EX +clip-rects 0,0,10,20, 20,10,30,30 +.EE +.TP 8 +.B coord-mode \fPmode +Changes the coord mode for \fIfill-polygon\fP, \fIdraw-lines\fP, and +\fIdraw-points\fP. Accepted parameters are "modeorigin" and "previous", +that sets the coord mode to CoordModeOrigin or CoordModePrevious, +respectively. Example: +.EX +coord-mode previous +.EE +.TP 8 +.B copy-area \fP{pixmap-spec|.},dstx,dsty[,x2,y2,srcx,srcy] +Calls XCopyArea. The character \fI.\fP means copy the window contents; +pixmap-spec is as defined in the \fBPIXMAPS\fP section below. \fIX2\fP and +\fIy2\fP are the coordinates of the end copy, not the width and height; if +not defined, the parser calculates them. \fIsrc_x\fP and \fIsrc_y\fP +default to zero. Example: +.EX +copy-area Term,10,10 +.EE +.TP 8 +.B copy-plane \fP{pixmap-spec|.},dstx,dsty[,x2,y2,srcx,srcy,plane] +Calls XCopyPlane. The character \fI.\fP means copy the window contents; +pixmap-spec is as defined in the \fBPIXMAPS\fP section below. \fIX2\fP and +\fIy2\fP are the coordinates of the end copy, not the width and height; if +not defined, the parser calculates them. \fIsrc_x\fP and \fIsrc_y\fP +default to zero. \fIPlane\fP defaults to one. Example: +.EX +copy-plane star,10,10 +.EE +.TP 8 +.B dashes \fPi1[...,in] +Sets the dashes for line drawing. Accepts up to 127 arguments. Example: +.EX +dashes 3,7 9,10 +.EE +.TP 8 +.B draw-arc \fPx1,y1,x2,y2[,start-angle,end-angle] +Draws an arc. The four first arguments are the rectangle enclosing the +arc. The two remaining arguments, if specified, are the start and end +angle, in degrees. Example: +.EX +draw-arc +0,+0,-1,-1,0,90 +.EE +.TP 8 +.B draw-rect \fPx1,y1,x2,y2 +.TQ +.B draw-rectangle \fPx1,y1,x2,y2 +Draws a rectangle. Requires four arguments, which are the start and end +coordinate pairs. Example: +.EX +draw-rect +1,+1,-5,-5 +.EE +.TP 8 +.B draw-string \fPx,y,"string" +Draws a text string. Requires three arguments, a x coordinate, a y +coordinate, and a string. Strings that have white space can be quoted with +the \fI"\fP character; the backslash character \fI\e\fP can also be used, +but it will be necessary escape it twice. Example: +.EX + draw-string 10,10, "Hello world!"\fP +.EE +.TP 8 +.B exposures \fPboolean +Sets graphics exposures in the GC. Allowed parameters are a integer or the +strings "true", "false", "on" and "off". Example: +.EX +exposures true +.EE +.TP 8 +.B fill-arc \fPx1,y1,x2,y2[,start-angle,end-angle] +Like \fIdraw-arc\fP, but fills the contents of the arc with the currently +selected foreground. Example: +.EX +fill-arc +0,+0,-1,-1,0,180 +.EE +.TP 8 +.B fill-poly \fPx1,y1 [...,xn,yn] +.TQ +.B fill-polygon \fPx1,y1 [...,xn,yn] +Like \fIdraw-lines\fP, but fills the enclosed polygon and joins the first +and last point, if they are not at the same position. Example: +.EX +fill-poly +0,+10, +10,+20, +30,+0 +.EE +.TP +.B fill-rect \fPx1,y1,x2,y2 +.TQ +.B fill-rectangle \fPx1,y1,x2,y2 +Like \fIdraw-rect\fP, but fills the contents of the rectangle with the +selected foreground color. Example: +.EX +fill-rect +10,+10,-20,-20 +.EE +.TP 8 +.B fill-rule \fPrule +Sets the fill rule. Accepted parameters are "evenodd" and "winding", which +set the fill rule to EvenOddRule or WindingRule, respectively. Example: +.EX +fill-rule winding +.EE +.TP 8 +.B fill-style \fPstyle +Sets the fill style. Allowed parameters are "solid", "tiled", "stippled" and +"opaquestippled", which set the fill style to FillSolid, FillTiled, +FillStippled or FillOpaqueStippled, respectively. Example: +.EX +fill-style tiled +.EE +.TP 8 +.B font \fPfont-spec +Sets the font for text functions. Example: +.EX +font -*-*-*-R-*-*-*-120-*-*-*-*-ISO8859-1 +.EE +.TP 8 +.B fg \fPcolor-spec +.TQ +.B foreground \fPcolor-spec +Like \fIbackground\fP, but sets the current foreground color. Example: +.EX +foreground blue +.EE +.TP 8 +.B mask +This command is useful when you want to draw only in the region that really +needs to be repainted. Requires no arguments. +.TP 8 +.B function \fPfunction-spec +Sets the specific GC function. Allowed parameters are "set", "clear", "and", +"andreverse", "copy", "andinverted", "noop", "xor", "or", "nor", "equiv", +"invert", "orreverse", "copyinverted" and "nand", which set the function to +GXset, GXclear, GXand, GXandReverse, GXcopy, GXandInverted, GXnoop, GXxor, +GXor, GXnor, GXequiv, GXinvert, GXorReverse, GXcopyInverted or GXnand, +respectively. Example: +.EX +function xor +.EE +.TP 8 +.B join-style \fPstyle +Sets the join style. Allowed parameters are "miter", "round" and "bevel", +which set the join style to JoinMiter, JoinRound and JoinBevel, +respectively. Example: +.EX +join-style round +.EE +.TP 8 +.B image \fP{pixmap-spec},xs,ys,[xe,ye] +This function is implemented as a way to quickly compose complex +decorations in widgets. \fIPixmap-spec\fP is as defined in the +\fBPIXMAPS\fP section below. \fIxs\fP and \fIys\fP are the coordinates from +where to start copying the pixmap; \fIxe\fP and \fIye\fP are optional (they +default to xs + pixmap.width and ys + pixmap.height, respectively). If the +pixmap has a mask, the copy is masked accordingly. Example: +.EX +image pixmap.xpm,0,0,20,20 +.EE +.TP 8 +.B line \fPx1,y1,x2,y2 +.TQ +.B draw-line \fPx1,y1,x2,y2 +Draws a line with the current foreground color. Requires four arguments, +the starting and ending coordinate pairs. Example: +.EX +line +0,+0, -1,-1 +.EE +.TP 8 +.B line-width \fPinteger +Selects a line width for drawing. Example: +.EX +line-width 2 +.EE +.TP 8 +.B line-style \fPstyle +Sets the line style. Accepted parameters are "solid", "onoffdash" and +"doubledash", which set the line style to LineSolid, LineOnOffDash or +LineDoubleDash, respectively. Example: +.EX +line-style onoffdash +.EE +.TP 8 +.B lines \fPx1,y1,x2,y2 [...,xn,yn] +.TQ +.B draw-lines \fPx1,y1,x2,y2 [...,xn,yn] +Draws a list of lines. Any number of argument pairs may be supplied. +Example: +.EX +lines +0,-1, -1,-1, -1,+0 +.EE +.TP 8 +.B paint-string \fPx,y,"string" +Identical to draw-string, but also uses the background color. Example: +.EX + paint-string 10,20, "Sample text"\fP +.EE +.TP 8 +.B point \fPx,y +.TQ +.B draw-point \fPx,y +Draws a point. Requires two arguments, a coordinate pair. Example: +.EX +point +10,+10 +.EE +.TP 8 +.B plane-mask \fPinteger +Sets the plane mask. Requires an integer parameter. Example: +.EX +plane-mask -1 +.EE +.TP 8 +.B points \fPx1,y1 [...,xn,yn] +.TQ +.B draw-points \fPx1,y1 [...,xn,yn] +Draws a list of points at the specified coordinates. Example: +.EX +points +1,+2, +1,+4, +1,+6 +.EE +.TP 8 +.B segments \fPx1,y1,x2,y2 [...,xn,yn] +.TQ +.B draw-segments \fPx1,y1,x2,y2 [...,xn,yn] +Draws a list of segment lines. The number of parameters must be multiple +of 4. Example: +.EX +segments +1,+2,+1,-3, +2,-2,-3,-2 +.EE +.TP 8 +.B shape-mode \fPmode +Sets the shape mode used in \fIfill-polygon\fP. Accepted parameters are +"complex", "convex" or "nonconvex", which set the shape mode to Complex, +Convex or Nonconvex, accordingly. Example: +.EX +shape-mode convex +.EE +.TP 8 +.B stipple \fPpixmap-spec +Sets the pixmap for a stipple. Requires a pixmap parameter, as described +in the \fBPIXMAPS\fP section below. Example: +.EX +stipple plaid +.EE +.TP 8 +.B subwindow-mode \fPmode +Sets the subwindow mode in the GC. Accepted parameters are +"includeinferiors" and "clipbychildren", which set the subwindow mode to +IncludeInferiors or ClipByChildren, respectively. Example: +.EX +subwindow-mode includeinferiors +.EE +.TP 8 +.B tile \fPpixmap-spec +Sets the pixmap for a tile. Requires a pixmap parameter, as described +in the \fBPIXMAPS\fP section below. Example: +.EX +tile xlogo11?foreground=red&background=gray80 +.EE +.TP 8 +.B ts-origin \fPx,y +Sets the tile stipple x and y origin. Requires two arguments, a x and y +coordinate. Example: +.EX +ts-origin 10,10 +.EE +.TP 8 +.B umask +Disables the GC mask, if it has been set with the command \fImask\fP. +Requires no arguments. +.PP +Example for drawing a shadow effect in a widget: +.EX +foreground gray30;\e +draw-lines +1,-1,-1,-1,-1,+1;\e +foreground gray85;\e +draw-lines -1,+0,+0,+0,+0,-1 +.EE +.SH PIXMAPS +A String to Pixmap converter has been added to \fBXaw\fP. This converter +is meant to be extended, and has enough abstraction to allow loading +several image formats. It uses a format that resembles a \fIURL\fP, with +the syntax: +.PP +.I [type:]name[?arg=val[{&}...]] +.PP +\fBType\fP can be one of \fIbitmap\fP, \fIgradient\fP or \fIxpm\fP. +.PP +\fBName\fP may be a file name, or, in the case of type \fIgradient\fP, may be +either \fIvertical\fP or \fIhorizontal\fP. +.PP +\fBArg=val\fP is a list of arguments to the converter. An argument list is +preceded by a question mark, and multiple arguments are separated by +ampersands. The most common arguments are \fIforeground\fP and +\fIbackground\fP. Gradients also support the arguments \fIstart\fP and +\fIend\fP (colors with which to start and end the gradient); the +\fPsteps\fP argument, to allow using less colors; and the \fIdimension\fP +argument to specify the size of the gradient. The \fIxpm\fP converter +understands the \fIcloseness\fP argument, which aids in using fewer colors +(useful if you have a limited colormap). +.SH TEXT WIDGET +Most of the changes to this version of the Xaw library were done in the +TextWidget, TextSrcObject, TextSinkObject and related files. +.PP +A couple of highly visible changes in the Text widget are due to many bugs +in the Xaw6 implementation involving scrollbars and auto-resizing. +Scrollbars being added or removed caused several problems in keeping the +text cursor visible, and in Xaw6 it was very easy to have a widget thinking +the cursor was visible, when it was not. Also, permitting automatic +resizing of the widget to a larger geometry created other problems, making +it difficult to have a consistent layout in the application, and, if the +window manager did not interfere, windows larger than the screen could +result. Therefore, some functionality involving scrollbars and +auto-resizing has been disabled; see the section on new and modified +Text widget resources below. +.PP +The Text widget's default key bindings were originally based on the Emacs +text editor. In this release, even more operations familiar to Emacs users +have been added. New text actions include: +.TP 8 +.B indent +Indents text blocks. Not bound by default. The Text widget also does not +attempt to perform auto-indentation of its source object by default. +.TP 8 +.B keyboard-reset +Resets the keyboard state. Reverts the action multiplier to 1, and if undo +is enabled, toggles between undo and redo. Bound by default to +\fIControl<Key>G\fP. +.TP 8 +.B kill-ring-yank +In this version of Xaw, text killed in any text field is kept in memory, +allowing cut and paste operations internally to the program between text +fields. Bound by default to \fIMeta<Key>Y\fP. +.TP 8 +.B numeric +Listed here only for purposes of documentation. Called by default when one +of the characters \fI1, 2, 3, 4, 5, 6, 7, 8, 9, 0,\fP or \fI-\fP is typed, +allowing composition of the multiplication number of text actions. +.TP 8 +.B set-keyboard-focus +Sets the input focus of the top level widget to the text field. Not +enabled by default, but bound to the \fI<Btn1Down>\fP event. +.TP 8 +.B toggle-overwrite +Toggles overwrite mode. In overwrite mode, any text inserted in a text +field will replace existing text. Bound by default to \fI<Key>Insert\fP. +.TP 8 +.B undo +Sets the \fIenableUndo\fP resource of the textSrcObject. Not enabled by +default, but bound to \fIControl<Key>_\fP. +.PP +New and modified Text widget resources include: +.TP 8 +.B justify (\fPClass\fB Justify) +Sets the text justification. Can be one of \fIleft, right, center\fP, or +\fIfull\fP. Only enabled when the \fIautoFill\fP resource is set, and the +resources \fIleftColumn\fP and \fIrightColumn\fP are correctly set. +.TP 8 +.B leftColumn (\fPClass\fB Column) +Specifies the left column at which to break text. Text lines started with +an alphanumeric character will automatically start at this column. +.TP 8 +.B positionCallback (\fPClass\fB Callback) +Allows installation of a callback to be called every time the cursor is +moved, and/or the file changes its size. The callback is called with a +pointer to a structure containing the following data: +.nf +typedef struct { + int line_number; + int column_number; + XawTextPosition insert_position; + XawTextPosition last_position; + Boolean overwrite_mode; +} XawTextPositionInfo; +.fi +This callback is intended to help programmers write text editors based +on the Xaw widget set. +.TP 8 +.B resize (\fPClass\fB Resize) +No longer supported, but recognized for backward compatibility with +resource specifications written for the Xaw6 Text widget. +.TP 8 +.B rightColumn (\fPClass\fB Column) +Specifies the right column at which to break text. Text lines started with +an alphanumeric character will automatically end at this column. +.TP 8 +.B scrollHorizontal (\fPClass\fB Scroll) +.TQ +.B scrollVertical (\fPClass\fB Scroll) +These resources control the placement of scrollbars on the left and bottom +edges of the Text widget. They accept the values \fIXawtextScrollAlways\fP +and \fIXawtextScrollNever\fP. A converter is registered for this resource +that will convert the following strings: \fIalways\fP and \fInever\fP. The +value \fIXawtextScrollWhenNeeded\fP (and \fIwhenNeeded\fP, recognized by +the converter), is accepted for backwards compatibility with resource +specifications written for the Xaw6 Text widget, but ignored (effectively +treated as \fIXawtextScrollNever\fP). +.SH TEXT SOURCE OBJECT +The textSrcObject allows display of its contents to more than one window, +and also stores undo information. The new resources for the textSrcObject +are: +.TP 8 +.B callback (\fPClass\fB Callback) +Previous versions of Xaw had this resource in subclasses of the TextSource +object. This was changed to make it possible to tell the callback the +state of the text when undo is enabled. +.TP 8 +.B enableUndo (\fPClass\fB Undo) +A boolean resource that enables or disables the undo function. The default +value is False. +.TP 8 +.B sourceChanged (\fPClass\fB Changed) +Like the callback resource, this resource was previously in subclasses of +the TextSource object. It is now in the textSrcObject to control the +changed/unchanged state when undo is enabled. +.SH TEXT SINK OBJECT +The textSinkObject subclasses asciiSinkObject and multiSinkObject have been +changed slightly to use a new cursor shape (no longer a caret at the +baseline) that indicates the input focus of the text widget, and allow +specification of the cursor color. The new resource is: +.TP 8 +.B cursorColor (\fPClass\fB Color) +Sets the cursor color of the text. This color is also used to draw +selected text. +.SH SIMPLE MENU WIDGET +The simpleMenuWidget algorithm to lay out menu entries has been changed to +enable multiple columns when a single column does not fit on the screen. +It was also modified to enable submenus. +.SH SME BSB OBJECT +A new resource has been added to the smeBSBObject to allow binding submenus +to it. The new resource is: +.TP 8 +.B menuName (\fPClass\fB MenuName) +Specifies the name of the popup widget to be popped up when the pointer is +over the menu entry, or NULL. Note that the named menu must be a child of +the popup parent of the smeBSBObject. +.SH AUTHORS +The original X Consortium version of the Athena Widget Set and its +documentation were the work of many people, including Chris D. Peterson, +Ralph Swick, Mark Ackerman, Donna Converse, Jim Fulton, Loretta +Guarino-Reid, Charles Haynes, Rich Hyde, Mary Larson, Joel McCormack, Ron +Newman, Jeanne Rich, Terry Weissman, Mike Gancarz, Phil Karlton, Kathleen +Langone, Ram Rao, Smokey Wallace, Al Mento, and Jean Diaz. +.PP +The additions and modifications to \fIXaw\fR which were +originally made for XFree86 were written by Paulo +C\('esar Pereira de Andrade. +.SH SEE ALSO +.I Athena Widget Set - C Language Interface |