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README
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This directory contains the source for the example programs described
in O'Reilly and Associates' X Toolkit Intrinsics Programming Manual,
Motif Edition (and a few not described there). These examples require
Motif 1.2 and the X11R5 version of Xt and the other X libraries.
Most of the files in the top level directory are application defaults
files for the examples in the subdirectories. To run the programs using
the application defaults files (in many cases necessary for the programs
to operate properly), simply set the XAPPLRESDIR environment variable
to point to this directory (or install these files in
/usr/lib/X11/app-defaults). Note that the value of XAPPLRESDIR must
end in a /.
The example code is in subdirectories named after the chapter where
the examples are described.
If you are getting this archive from UUNET, the source for the
xtetris game is in the xtetris subdirectory. If you are getting
this archive from the X11 source tape from MIT, then the source for
xtetris is in the directory contrib/games/xtetris.
Note that the Makefiles do not install the example
programs. The examples are intended to be run from this directory so
that they don't clutter up /usr/bin/X11/ because they are not generally
useful as real programs (with the possible exception of xtetris).
The following lists what is demonstrated in each of the directories.
ch02 contains the following example programs:
xhello: a simple hello world program using the Label widget
xgoodbye: xhello with a callback on a PushButton widget
xsetstring: demonstrates how to use XtVaSetValues and how to set
a compound string in the code.
xgetstring: demonstrates how to use XtVaGetValues and how to get a
compound string in the code.
ch03 contains the following example programs:
xrowcolumn: a simple XmRowColumn containing PushButtons
xform: a simple XmForm containing PushButtons
xmainwindow: an XmMainWindow, with a menu bar, a File menu containing
quit, and a Help menu containing a help button that posts
a dialog -- both menus have tear-off behavior enabled
Ex3-8: example 3-8 from book -- passing a number to a callback
through client_data
Ex3-9: example 3-9 from book -- passing a structure to a callback
through client_data
ch04 contains the following example programs:
xbitmap1: simplest bitmap editor, using BitmapEdit widget
xbitmap2: add small pixmaps to xbitmap1, using XmDrawingArea
xbitmap3: add small pixmaps to xbitmap1, using XmPrimitive
xbitmap4: implement xbitmap1, not using BitmapEdit widget
xbitmap5: both reads and writes standard bitmap files, using BitmapEdit
BitmapEdit.c: source file for BitmapEdit widget, described in chapters
6 and 7
BitmapEdiP.h: private include file for BitmapEdit, described in Chapter 6
BitmapEdit.h: public include file for BitmapEdit, described in Chapter 6
ch05 contains the following example programs:
xcomstring: demonstrates creating compound string segments and
modifying fonts in the middle of a compound string
xuildemo: a hello, world program written using uil
ch08 contains the following examples programs:
xmotdbltst: tests motion events and double clicks in the same
translation table to show that this is erratic
xtryaccel: adds accelerators to xbox1 so that 'q' and 'p'
invoke actions from anywhere in the application -- note that
this example uses the Athena widgets because it does not
work in Motif because Motif modifies translation and
accelerator tables internally
ch09 contains the following example programs:
xfileinput: gets input from file using XtAppAddInput; invoke with
filename command-line argument
xpipeinput: gets input from pipe using XtAppAddInput; specify on
command-line any program that prints characters to standard
out (xpipeinput "cal 10 1989")
xstdin: gets input from pipe from stdin
xworkproc: uses a work procedure to create a popup widget using
idle time
ch10 contains the following example programs:
xpixmap.c: invokes a resource converter from the application;
since the Motif converter CvtStringToPixmap is not
application accessible, the program uses the Xmu
StringToBitmap converter
xfallback.c: defines a set of fallback resources
ch11 contains the following example programs:
xicon: an example of specifying an icon pixmap
xselectbit: a simple version of xbitmap the provides selection
capabilities
BitmapEdit.c: source file for a version of the BitmapEdit widget
the implements selections
(uses XmuConvertStandardSelection from the Xmu library)
BitmapEdiP.h: private include file for BitmapEdit
BitmapEdit.h: public include file for BitmapEdit
icon.bit: an icon bitmap file used in xicon.c.
ch12 contains the following example programs:
xscrollbox: a simple version of xbitmap that tests ScrollBox
ScrollBox.c: source file for a minimal composite widget that manages
two scrollbars and a main window
ScrollBox.h: public include file for ScrollBox
ScrollBoxP.h: private include file for ScrollBox
ch13 contains the following example programs:
xpopup: a basic Motif popup menu without accelerators or mnemonics
xpopupcasc: a Motif popup menu with a cascading submenu
xmenu1: a simple spring-loaded popup menu using the Athena widgets
xmenu2: a simple pulldown menu from an Athena command widget
xmenu3: a simple pulldown menu using the Athena MenuButton widget
xmenu4: a pulldown menu with a submenu, using the Athena widgets
xmenu5: a spring-loaded popup menu with a submenu, using the
Athena widgets
xmenu6: an attempt at a pulldown menu identical to xmenu2 except
using XtCallbackExclusive with callbacks only and no
actions -- doesn't work because XtCallbackExclusive calls
XtPopup which can't pass the right parameters to _XtPopup
(even if you write your own callback it still won't work --
this type of menu must use the XtMenuPopup action) --
fixed by XtPopupSpringLoaded
xmenu7: a pulldown menu using the Athena SimpleMenu, MenuButton,
and all three Sme gadgets
xdialog: a dialog box using the Athena widgets that is popped up
with XtCallbackExclusive callback
ch14 contains the following example programs:
xtwodisp: an application with windows on two displays
xtwoapp: an application that uses two application contexts and
two displays