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PC World Komputer 1998 April B
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Pcwk4b98.iso
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Borland
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Dbase50w
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SAMPLES1.PAK
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SAMPLES.TXT
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1994-08-02
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Copyright (c) 1991-1994 Borland International, Inc.
All Rights Reserved.
This document describes the sample program files, which are installed
in the SAMPLES subdirectory.
Several programs use the dBASE for Windows Form syntax, which lets
you run multiple programs simultaneously. For example, start openform.prg
by either typing DO OPENFORM in the Command window or double-clicking on
its icon in the Navigator. After the openform form appears, you can
start Winapi.wfm again either through the Command window or Navigator.
You can then switch freely between the two forms.
All samples should be run from the <_dbwinhome>\samples directory.
There is a SAMPLES.CAT catalog that lists all the samples files described
below.
Note: The files in the samples\extern, and samples\music
directories are described in extern.txt, and music.txt,
which are located in the corresponding diretories.
ANIMALS.WFM
-----------
Files used: ANIMALS.DBF, ANIMALS.DBT, ANIMALS.QBE, ANIMALS.MDX
BUTTONS.CC
This program shows how the dBASE for Windows form controls defined on
database fields are related and change as the record pointer changes. It
also displays imaging commands. The image displayed is stored in
a binary field in ANIMALS.DBF. An animal's size will turn red when that
animal has a size of > 10.
You can type "Do animals.wfm" in the Command window to run this file,
and then click the Design SpeedBar button to design it. Alternatively,
in the Navigator, you can select the Forms icon, and
right-click the icon for ANIMALS.WFM to SpeedMenu where you can choose
an option. You can then select Design Form to design the form.
When you want to run the form, click the Run (lightning bolt) SpeedBar
button.
BINTREE.PRG
-----------
File used: CLIENTS.DBF
This program shows how you can use the dBASE object extensions to create
a binary tree. It builds a tree of client names, from CLIENTS.DBF, in
alphabetical order. The tree goes left to right alphabetically, for
example, left child, parent, right child.
BUTTONS.CC
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This is a procedure file containing custom control classes for dBASE
forms. You can use the controls in this file by issuing a SET PROCEDURE
TO within your program, and then using the custom controls as you would
any built-in ones as in: DEFINE CANCELBUTTON C OF THIS....
If you have this procedure file loaded before opening the Form Designer,
the custom controls defined in it will appear in the Control Palette
under Custom. You can then add these controls to your form visually and
modify their properties in the Object Inspector and the Procedure Editor.
CAL.WFM
-------
This is a simple calculator form. It allows mathematical calculations,
memory manipulations, and hex/decimal conversions. The results appear in
the display entry field at the top of the form. The memory value appears
in the memory entry field at the bottom of the form.
You can modify and inspect this form through the Form Designer.
CHANGDIR.PRG
------------
File used: BUTTONS.CC
CHANGDIR.PRG is a tool for changing directories. It allows you to
traverse a directory tree, select a directory and either change
directories to the one you seleted (by pressing the OK button), or cancel
the program (by pressing the Cancel button).
CONTACT.WFM
-----------
Files used: COMPANY.DBF, CONTACT.DBF, CONTACT.DBT, CONTACT.MDX, CONTACT.QBE,
COMPANY.DBT, COMPANY.MDX
BUTTONS.CC
This program relates 2 tables and shows how form controls
work together and change as the record pointer moves in the main table.
It defines a form with a list box containing the names of companies,
radio buttons with company types, an entry field showing the contact for
the current company (from the contact table),and an editor showing notes
for that contact (also from the contact table).
The Close push button closes the form.
CONTACT.WFM can be modified through the Form Designer.
CUSTOMER.WFM
------------
Files used: CUSTOMER.DBF, CUSTOMER.DBT, CUSTOMER.MDX, CUSTOMER.QBE,
ORDERS.DBF, ORDERS.QBE,
CUSTOMER.MNU, DIVESHOP.BMP,
BUTTONS.CC
This is a form that shows information about different customers in a
company. It also illustrates how you can use transactions in a dBASE form.
You can move through the existing customers by selecting the Next/Previous
buttons, Cancel to leave the form, or edit the information about the current
customer.
You can look at the form in two modes -- View or Edit. Initially
the form is in View mode, which doesn't allow editing of information.
To change to Edit mode, choose Customer|Edit from the menu. Changing
information in Edit mode, and moving to another customer will display
a dialog box, which asks if you want to save the information you just
changed. You will not see this dialog box when moving between records
in View mode.
This form contains a menu that allows adding or deleting a customer and
searching for a customer based on the NAME index tag.
DBCLOCK.PRG
-----------
Files used: DBTIMER.VBX, DBCLOCK.BFM
This is a simple clock program. It brings up a form with a time display.
The time display changes size as you resize the form. It will always be
centered in the form. There is also a menu that allows changing the font
and color properties of the time display, as well as the format of the
displayed time (12/24 hour).
EQUIPMNT.WFM
------------
Files used: EQUIPMNT.WFM, GETFLTS.WFM, CHANGEQ.WFM,
EQUIPMNT.QBE, CHANGEQ.QBE,
FLIGHTS.DBF, FLIGHTS.MDX, AIRCRDB.DBF, AIRCRDB.DBT,
AIRCRDB.MDX,
EQUIPMNT.MNU
EQUIPMNT.H,
AIRBRLND.BMP, AIRBRLN2.BMP
Note: There is also an EQUIPMNT.CAT catalog that lists the
above files.
This is an application that lets you change airplanes for different flights
of the Airborland airlines.
It brings up a form with a menu that lets you select the flight for which
you want to change the equipment. After you select the flight, you will
see a browse of all flights corresponding to your selection, an image of
the plane used for the flight currently highlighted in the browse, and a
button you can press to actually change the plane.
Pressing the Change Equipmnt button displays another form with a
list box of different plane names and the image corresponding to the
selected plane type. You can select an airplane from here, and the
current flight will be modified to use the new plane.
To exit the program, choose File|Exit.
EVENT.PRG
---------
This is a program that shows how you can use the different event handlers
attached to a form to detect combinations of mouse and keyboard
key presses. It displays two forms. One of them you can resize by
dragging the mouse -- the form will follow (without you having to
drag the border). The other one lets you create as many buttons
as you want, move them around and align them by combining different key
click combinations.
FONT.WFM
--------
Shows how to set different fonts and colors for the form
controls. Fonts can be set for all the form controls.
LINKLIST.PRG
------------
This is a simple program that creates a linked list of integers from 1 to
10. Each link has a value and next properties. After the list is created,
a function is called to step through it and display the contents of each
link.
NAMEINFO.WFM
------------
Files used: NAMES.DBF, NAMES.DBT, NAMES.QBE,
NAMESRCH.WFM
BUTTONS.CC
This program shows dBASE for Windows' DDE capabilities. It establishes
a link with WordPerfect to create a "Thank you" letter for customers
that had purchased software.
OPENFORM.PRG
------------
Files used: COUNTRY.DBF, COUNTRY.DBT, COUNTRY.MDX,
BUTTONS.CC
This program shows how the OPEN FORM command works. OPEN FORM displays a
form and enables the controls contained on that form. It does not stop
program control flow.
In this program, you can select a country in one form, then view
information about that country in a second form. You can then select
more countries from the first form, and display forms with information
about them. All information forms remain onscreen until you close them.
ORDERS.WFM
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Files used: ORDERS.QBE, ORDERS.DBF, ORDERS.MDX,
LINEITEM.DBF, LINEITEM.MDX
CUSTOMER.DBF, CUSTOMER.DBT, CUSTOMER.MDX,
ORDERS.MNU,
DIVESHOP.BMP,
BUTTONS.CC
This form displays information about a customer order. It uses a format
similar to Customer.wfm. It has buttons that let you move around in the
Orders table. The Orders table is related to the Customer and Lineitems
tables. Each order could have many line items ordered. These items are
displayed in a browse control on the form that changes as you move
through the orders. There is also a customer number displayed for
each order.
There is also a menu attached to this form through which you can add or
delete an order, or search for an order based on the current index,
order_no
SEARCH.WFM
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Files used: BUTTONS.CC
This is a generic search form that allows you to enter a value, and then
save it by pressing Ok, or ignore it by pressing Cancel. The value is
saved as a property of the form, so that the form calling Search.wfm can
search and perform some action based on the value.
SWITCH.WFM
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Files used: SWITCH.VBX, SWITCH.BFM
This form illustrates how to use VBX controls in dBASE forms.
It displays a simple two-state switch that changes the color of the form
and the caption of the switch control when it's turned on or off.
PICTURES.WFM
------------
Files used: PICTURES.DBF, PICTURES.DBT, PICTURES.MDX, PICTURES.QBE
Note: All ole field values contain embedded data. Windows
saves the full path with each linked file, so only
embedded data can be used if the files are to be portable.
This program shows how the form controls defined on table
fields are related and change as the record pointer changes. It also
shows how you can view OLE fields in dBASE forms.
A form is defined with a list box of image names and an OLE control
containing an image you can modify through Paintbrush. The OLE control
corresponds to the currently highlighted name. There is also a sound
button that will play a sound corresponding to the image. Both the OLE
image and the sound are stored in binary fields in Pictures.dbf.
Double-clicking on the OLE control allows you to edit it through
Paintbrush.
You can use the Form Designer to modify and run this form file.
WINAPI.WFM
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Files used: SYSINFO.WFM, BUTTONS.CC
Calls: GetVersion(),GetWinFlags(),GetModuleUsage(),GetModuleHandle(),
ShowWindow(),GetFreeSpace(),messagebox(),SystemParametersInfo(),
GetWindowText(),CloseWindow(),OpenIcon(),GetWindowsDirectory(),
GetPrivateProfileString()
(external functions)
This program gives extensive examples of how you can use the API
interface to access Windows functions and obtain useful information.
It displays a form that lets you select what external functions or groups
of functions you would like to execute, and then executes your selection.
You can get various types of system information, display Windows dialog
boxes, minimize or maximize dBASE windows, and much more.