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VO and C# tips, experiences and archives by Software Objectives

VO Tips Archive

Here are the hundreds of tips and tricks we have efficiently stored and archived in this section of our site. Our Archive

Archive of VO Tips saved from Web and Newsgroups (Click title to view details)

256 COLORS IN IMAGE LISTS

3 TIER APPLICATIONS

4660DYNPTR - SOLUTION TO OUR CASE

A FIELD NAMED NAME

A FILTER CLASS FOR DBSERVER

About StandardFolderDialog

ACCELERATOR IN WINDOW WITH NO MENU

ACCESSING A DBF THROUGH ASP

ACCESSING FTP TRHOUGH PASSIVE FIREWALLS

ACCESSING THE APP CLASS FROM OTHER CLASSES

ACTIVE CONTROL NAME

ADD BITMAPS TO EMAILS

ADD REMOVE COLUMNS AT RUNTIME IN DATABROWSER

ADDING ICON TO PROGRAM

ALL ABOUT CUSTOM DRAW MESSAGES

ALL ABOUT TRAY ICON USAGE AND HIDING THE BUTTON

ALLOCATE YOUR OWN HEAP AND STATIC MEMORY BLOCK

ALREADY RUNNING

ANIMATED CURSORS

ANIMATED TRAY ICONS

ANIMATION CONTROLS (SHELL RESOURCES)

ANNIMATION CONTROL VALUES

API DRIVEN CALL STACK - FAST

API TEXT OUTPUT AND PEN POSITIONING

APP CLASS (SUBCLASSING IT)

APP OBJECT SUBCLASS

APPCOMMAND EVENTS FOR DATAWINDOWS

ARRAY TO STRING WITH SYMBOL SUPPORT

AS400 VS RS600 VS PC DISCUSSION

ASBINARYSTRING FUNCTION

ASORT() REPLACEMENT

AUTO SLE DISABLE FROM CHECKBOX

AUTOFOCUS ON DATABROWSER

AUTOMATICALLY CLOSE APP

AUTOMATION SERVER WITH EXCEL

AVI CONTROLS ON THE STATUS BAR

AVI RESOURCE IN FILE

AVOIDING TASKBAR ICON

BACKGROUND COLOR (BRUSH) OF WINDOW

BACKGROUND PROCESSING IN THE MAIN MESSAGE LOOP

BAR CODE PRINTING

BARCODE WEB SITE

BASE64DECODE A STRING

bBROWSER Cell ToolTips

bBrowser decimal comma in EDIT cell

bBrowser mouse pointer flickering

bBROWSER SENSITIVE CELL VERTICAL ONLY MOVEMENT

BITMAP - GET SIZES OF BITMAP AND FROM A FILE

BITMAP (SHOWBITMAP)

BITMAP ON A MENU

BITMAP ON A WINDOW

BITMAP ON MAIN WINDOW

BITMAPS FROM DLL

BITMAPS GET PIXEL SIZE FROM FILE

BITMAPS IN DATAWINDOWS

BMP FROM RIBBON

BMP ICONS & MENUS

BMP RESOURCE FROM ANOTHER DLL

BMP SAVE TO MEMO FIELD

BOLD A MENU ITEM

BROWSE GRANULARITY

BROWSE LINE HEIGHT

BROWSE VIEW - READONLY COLUMNS

BROWSER COLUMN FREEZE

BROWSER INCREMENTAL SEEKS WITHOUT A SEARCH SLE

BROWSER SELECTION BAR

BROWSING FOR FOLDERS

BUFFERED SERVER

C TO VO CONVERSION TIPS

C TO VO CONVERSION TIPS_2

C TO VO CONVERSIONS

CALCULATED FIELDS IN DATALISTVIEW

CALL A FUNCTION FROM A DLL

CALL A FUNCTION FROM A DLL - MORE

CALL VO DLL FROM MFC C++

CALLING A METHOD DOUBLECLICKING A SLE CONTROL

CANVASE EXE EXTENSIONS

Capture Desktop to a Bitmap

CAPTURE ENTER KEY

CAPTURE OUTPUT TEXT FROM DOS APP

CAPTURING MOUSE EVENTS

CD DISTRIBUTION (RO FILE ATTRIB)

CELLDOUBLECLICK (NOT IN DATABROWSER)

CEMAIL FIX FROM VOGER

CGI HTTP HEADER PROBLEM WITH VO SAMPLES

CHAGE CURSOR OVER A PUSHBUTTON

CHANGE BITMAP OF TOOLBAR

CHANGE DEFAULT WINDOWS PRINTER

CHANGE DW TO MODAL AT RUNTIME

CHANGE THE BACKGROUND OF ALL CONTROLS ON A WINDOW

CHANGE THE FIELD NAMES OF A DBF

CHANGING CLASS-NAME OF AN APPLICATION (ENUM WINDOWS)

CHANGING CONTROL STYLES ON THE FLY

CHANGING FOCUS WITH WM_NEXTDLGCTL

CHANGING POINTER

CHANGING THE COLOR OF A DISABLED SLE

CHANGING THE POINTER OVER A PUSH BUTTON

CHECKBOX WITH COLOR

CHECKING SYSTEM RESOURCES

CHILD WINDOW FROM IDE

CLASS FOR NT USER NAME ACCESS

CLASS TREE FOR VO

CLIPPER COMPATIBLITY

CLOSE WINDOW ON ESCAPE KEY

CLOSING A WINDOW WITH K_ESC

CLOSING INDEX FILES

CM2 TOOLBAR BACKGROUND COLOR

CMUSER DEFINED COLORS

CODEBLOCK OOP STYLE

CODEBLOCK TYPE CASTING

CODEBLOCKS IN FILTERS

COLD BOOT FROM VO

COLLATION-ANSI-OEM

COLOR COLUMN DATABROWSER

COLOR EXAMPLE IN BBROWSER

COLORS IN THE DATABROWSER

COMBO BOX EDIT HEIGHT

COMBOBOX AUTO DROP-DOWN

COMBOBOX LIMITATION

COMBOBOX LOADING

COMBOBOX MAXIMUM

COMBOBOX ON LISTVIEW

COMBOBOX ON TOOLBAR

COMBOBOX RESPOND TO KEY

COMBOBOX RIGHT CLICK

COMBOBOX-CAN IT DROP UP

COMBOX DROPDOWN WIDTH SETTING

COMBOX DROPDOWN WIDTH SETTING 2

COMMAND LINE CLASS

COMMAND LINE PARAMETER IN FUNC START()

COMMUNICATING BETWEEN APPS

COMPARISON OF FLOAT

COMPILING AVI RESOURCE

CONNECT LOCAL DEVICE TO A SERVER RESOURCE VOLUME

CONSOLE FUNCTIONALITY (VO AND WIN32)

CONTEXT HELP IN DIALOG

CONTEXT HELP ON TITLE BAR

CONTEXT MENU HELP

CONTEXT SENSITIVE HELP SIMULATION

CONTROL CLASS EXTENSIONS

CONTROL NOTIFY AND SPINNER ISSUES

CONTROL ON THE TOOLBAR

CONTROLS - MAKE READ-ONLY

CONTROLSETSTYLE() FROM BUTTON

CONTROLSETSTYLE(KSTYLE) PROBLEM

CONVERSION FROM C-SOURCE TO VO-SOURCE

COOKIE MANAGEMENT CLASS

COORDINATES OF FIXED TEXT CHANGE WITH BROWSER COLUMN DRAG

COPY A DBF INTO EXCEL USING OLE

COPY BITMAP TO CANVAS

COPY PROTECTION SCHEME

COPYING FILES WITH A PROGRESS API

COUNT THE BITS SET IN A WORD

COUNTING RECORDS WITHIN A FILTER

CPOP EMAIL GETMAIL FIX

CRC32 FUNCTION CYCLIC REDUNDANCY CHECK

CREATE 128 BIT UNIQUE GUID

CREATE A FIXEDICON WITHOUT THE PAINTER

CREATE ACCELERATORS ON THE FLY

CREATEPROCESS AS ANOTHER USER

CREATING A TREEVIEW EVENT

CREATING LISTVIEW TOOLTIPS FOR EACH ITEM AND COLUMN

CREATING SUBMENUS ON THE FLY

CTRL-TAB PAGE SWITCHING TECHNIQUES

CURRENT CARET POSITION IN A SLE

CURSOR POSITION IN SLE

CUSTOM CONTROL HOWTO

CUT COPY AND PASTE IN AN SLE

CUT&PASTE ON SUBFORM

CV_CAT (FILES ON CIS-CAVO2)

DATA LISTVIEW COLUMN REDUCTION

DATA TYPES AND RANGES

DATABROWSE DATACOLUMN(RECNO)

DATABROWSER AND COLUMN POSITIONING

DATABROWSER CELL DOUBLECLICK

DATABROWSER CELL EDIT

DATABROWSER COLUMN CUSTOM FILL

DATABROWSER CUSTOMIZATION

DATABROWSER DOUBLE CLICK ON ROW CAPTION

DATABROWSER GRANULARITY

DATABROWSER MATHIAS COLUMNS

DATABROWSER ON A DIALOG WINDOW

DATABROWSER ON DIALOG WINDOW

DATABROWSER ROW COUNT

DATABROWSER ROW HEIGHT SETTING

DATABROWSER, CHANGING INDEX

DATABROWSER-CAPTURE ENTER KEY

DATALISTVIEW - INCLUDING FIELDS FROM A RELATED SERVER

DATALISTVIEW CALCULATED COLUMN

DATALISTVIEW CALCULATED COLUMNS

DATALISTVIEW CALCULATED COLUMNS (2)

DATAWINDOW - PREVENT CLOSING

DATAWINDOW AS A PANE OF A SPLITWINDOW.

DATAWINDOW REFRESH ACROSS NETWORK

DATE PICKER - PROVIDE FOR NULL DATE

DATETIMEPICKER - SETTING A NULL DATE

DATETIMEPICKER WEEKNUMBER

DBF TO EXCEL SPREADSHEET

DBL CLICK BROWSE HEADER

DBSERVER - REPLACING CLASS IN DB SERVER EDITOR

DBSERVER EXAMPLES - CONCURRENCY

DBSERVER PATH INDEPENDENT

DEFAULT() WITH STRONGLY TYPED PARAMETERS

DEFERENCING A BYTE PTR TO A DWORD

DELETE FILES AND FOLDERS TO RECYCLE BIN

DELPHI VS VO DISCUSSION

DETECT AN EXPANDED COMBO BOX

DETECT MOUSE OVER FIXED TEXT

DETECTING A MOUSE OVER FIXED TEXT

DETERMINE WHICH LISTVIEW COLUMN CLICKED

DIALING A PHONE NUMBER WITH CAVO 2.0B-3

DIALOG BOX DRAW (MODELESS)

DIALOG WINDOW'S OWNER

DIALUP NETWORKING FROM VO2

DIBXXX COMMANDS

DIRECTORY CREATE, CLEANUP

DIRECTORY, CHECKING EXISTENCE OF

DISABLE A PAGE IN A TABCONTROL

DISABLE CLOSING WINDOW

DISABLE MAXIMIZE&MINIMIZE&CLOSE MDI WINDOW

DISABLE MENU AND SUBMENU ITEMS

DISCUSSION ON EARLY BOUND METHODS AND PRAGMAS

DISCUSSION ON POINTERS TO METHODS

DISCUSSION ON STRONG TYPING EARLY BOUND METHODS AND PRAGMAS

DISPATCH RETURN CODE

DISPLAY JPG AND JPEG FILES

DLL LIBRARY LOADING - DUMMY FUNCTION

DOS ERROR CODES

DOS ERRORLEVEL IN VO2.0

DRAG&DROP WITH LISTBOXES

DRAG-DROP IN DATABROWSER

DRAW A DISABLED BITMAP

DRAW TEXT WIN 32 API

DYNAMIC MEMORY (CHANGING SIZE)

DYNCHECK ERROR CODES

DYNPTR PROBLEM SOLVING

DYNSIZE (CUT DOWN GPF)

EAMIL AND SOCKETS WITH VO25

EDIT CONTROL BUG WORKAROUND

EDIT CONTROLS ARRAY

EDITING HUGE TEXT FILES

EMAIL AND SOCKETS WITH VO25

EMAIL FIX FOR VO25

EMAIL FROM WITHIN VO

EMAIL TO 1000 ADDRESSEES AUTOMATICALLY

ENDWINDOW(TRUE) EXPLANATION

ENTER KEY IN COMBO BOX

ENTER KEY ON PUSHBUTTONS

ENTER KEY PROCESSING AND DLGC_WANTALLKEYS

ENUMERATE A LIST OF PRINTERS

ESC FROM DATAWINDOW

ESCAPE KEY MAPPED TO PUSHBUTTON

EVOLUTION OF A PROGRAMMER

EXCEL - HOW TO USE

EXCEL & VO AUTOMATION SERVER

EXECUTE A DOS-PROGRAM IM FOREGROUND

EXTRACT THE SLE FROM A COMBO BOX

EXTRACTING MULTIPLE IMAGE ICONS FROM SHELL32

FAB FILTER MESSAGE FUNCTION

FART DESCRIPTIONS

FAST ARRAY SORTING

FAST FILE ACCESS WITH CREATEFILEMAPPING API

FAST LISTVIEW SORTING

FAST SELECT-ALL FOR LISTVIEWS

Fast STUFF function

FAX - SEND FROM VO VIA FAXPRO

FCOPY TO PRINTER

FIELDNAMES USING RESERVED WORDS

FILE ATTRIBUTES

FILE INFO FOR ICONS AND NAMES

FILE OR DLL VERSION INFO FUNCTION

FILE TIME AS STRING

FILTER CODEBLOCK

FILTERED DB USING CLASS

FILTERING DB SERVERS

FIND ALL PRINTERS

FIND THE CONTROL UNDER THE MOUSE

FINDFIRSTFILEEX PROTOTYPE

FINDING ALL PROCESSES ON A PC

FIX DBSERVER MEMO (1)

FIX DBSERVER MEMO (2)

FIX TOOLTIP FOR TRAY ICON

FIXED TEXT - DETECTING EVENTS+TOOLTIPS

FIXED TEXT CONTROL - DETECTING EVENTS

FIXED TEXT CONTROLS - MAKE TRANSPARENT

FIXEDICON SET PROGRAMMATICALLY

FIXEDTEXT CONTROLS CAN DETECT EVENTS

FIXEDTEXT RESPOND TO MOUSECLICK

FIXING THE RESIZING OF DATAWINDOWS (SDT ARTICLE)

FLOATING (TOOL) WINDOW

FOCUS CONTROL WITH THE ENTER KEY

FOCUS ON TABCONTAINER SUBFORMS

FONTS - TEST FOR LARGE OR SMALL

FONTS LARGE VS SMALL

FORCE EARLY BINDING

FORCE FOCUS ON A PUSHBUTTON

FREAD() INITIALIZING

FTP AUTO UPDATER

FTP WITH RESUME for File Transfer

FULL PRINT DIALOG SELECTION BOX

FULL WINDOW SIZE UNDER W2K

GC FAILURE CODE

GDI OBJECT DISCUSSION

GENERAL PROTECTION FAULT 4660

GENERATE A GENERIC OBJECT FROM A DBF RECORD

GENERATE UNIQUE KEYS IN A MULTIUSER-ENVIRONMENT

GENERATING KEY EVENTS

GET A LIST OF ALL PRINTERS

GET A LIST OF ALL WINDOWS PRINTERS

GET A RECORD FROM THE MOUSE POSITION OVER A BBROWSER

GET ALL CONTROLS OF A WINDOW

GET ARRAY OF SELECTED ITEMS IN LISTBOX

GET DEFAULT ICON

GET FREE DISK SPACE API

GET NETWORK ADAPTER ADDRESS

GET NT USER NAME

GET OS VERSION INFO

GET PROPERTIES FROM A FOREIGN OR OCX HWIND

GET THE NETWORK USER NAME

GET TIME ZONE INFORMATION FOR INTERNET USE

GETCOMPUTERNAME

GETTING PRINTER INFORMATION

GETTING WINDOW CONTROLS

GLOBAL VARIABLES USING SYSOBJECT()

GPSYNC TWO GRIDS

GRID CELL JUSTIFICATION

GRIDPRO CHECKBOX COLUMN

GRIDPRO FOCUS AFTER EDIT

GRIDPRO MODS(JUERGENS)

GRIDPRO SETFOCUS PROBLEM SOLVED

HANDLE FOR DATA-AWARE WINDOWS

HANDLE TO WINEXEC(APP)

HANDLING ERRORS IN MULTI-THREADED APPS

HANDLING ROWGUID IN SQL

HANGING UP THE RAS CONNECTION

HELP WITH PROPER CONVERSIONS

HEX TO REAL CONVERSIONS

HIDE DATABROWSER VERT HORIZ LINES

HIDE ITEMS ON THE WINDOW TITLE BAR

HIERARCHICAL LOOKUP

HIgh Performance Testing counter

HIGHLIGHT SLE WITH MOUSE

HORIZONTAL SCROLL BARS IN LISTBOX AND COMBOBOX

HOW CHECK AN OBJECT IS A VO CLASS

HOW DO I FORCE A MENU TO BE DROPPED

HOW DO I TERMINATE A RUNNING NON-VO APP

HOW DO YOU INDEXING WITH A PROGRESSBAR

HOW EXTACT IMAGES FROM SHELL32-DLL

HOW MAKE A BITMAP TRANSPARENT

HOW MANY INSTANCES OF AN APP RUNNING ON A NETWORK

HOW SAVE DATA FROM VO TO POCKET PCtxt

HOW SHOW THE SaveAsDialog with DETAILS

HOW TO ACCESS A PARALLEL PORT DIRECTLY

HOW TO ADD ALIGNMENT TO DATAWINDOWS IN A TAB CONTROL

HOW TO ADD HELP TO ANY WINDOW

HOW TO ADD TO RTF OR RICHEDIT VALUES

HOW TO ALIGN COLUMNS IN A LISTBOX WITH TABS

How to allow Resize in a datadialog

HOW TO AUTO RIGHT-JUSTIFY YOUR FIXED TEXT CONTROLS

HOW TO AUTORUN YOUR APP

HOW TO BUILD A BIG LIST VIEW INCREMENTALLY

HOW TO BUILD AND CHECK A DBF AT RUNTIME

HOW TO CALCULATE THE SIZE OF TEXT CONTROLS

HOW TO CALCULATE THE WIDTH OF A BROWSER

HOW TO CALL A FUNCTION FROM A DLL

HOW TO CALL FUNCTION FROM DLL

HOW TO CALL FUNCTIONS AT STARTUP AND SHUTDOWN

HOW TO CALL RESIZE MANUALLY

HOW TO CAPTURE THE SCREEN INTO THE CLIPBOARD

HOW TO CAPUTRE A TAB PAGE SELECTION

HOW TO CENTER A DATAWINDOW

HOW TO CENTRE SLE TEXT

HOW TO CHANGE THE COLOR OF A CHECKBOX

HOW TO CHANGE THE COLOR OF LISTVIEW CAPTIONS

HOW TO CHANGE THE COLOUR OF THE TAB ON A TAB CONTROL

HOW TO CHANGE THE TIME AND DATE OF A FILE (TOUCH EXE)

HOW TO CHECK FOR A FUNCTIONS EXISTENCE AND THEN USE IT

HOW TO CLEAR SELECT-ALL FOCUS IN AN MLE

HOW TO CLOSE EXCEL

HOW TO CLOSE EXCEL WITH OLE

HOW TO COLOR THE USUSED CAPTION AREA OF A TAB CONTROL

HOW TO COLOUR TABCONTROL BACKGROUNDS

HOW TO CONTROL ANOTHER PROCESS

HOW TO CONTROL REPAINTING OF GROUPBOXES AND RADIOBUTTONGROUPS

HOW TO CONTROL THE COLOR OF A COMBOBOX

HOW TO CONTROL THE COMBOBOX WITH WNDPROC SUBCLASSING

HOW TO CONVERT C TO VO

HOW TO CONVERT MOUSE POSITION TO SCREEN COORDS

HOW TO COPY PART OF A SCREEN TO THE CLIPBOARD

HOW TO COPY TREEVIEW BRANCHES TO ANOTHER TREEVIEW

HOW TO CRATE FAST CSV FILES

HOW TO CREATE A SHORTCUT _LNK

HOW TO CREATE A WIZARD

HOW TO CREATE AN OCX AT RUNTIME

HOW TO CREATE FONTS

HOW TO CREATE HISTORY SLES

HOW TO CREATE HTML ON THE FLY

HOW TO CREATING A FLOATING TOPMOST WINDOW

HOW TO CUSTOMISE A STANDARD DIALOG