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(Page 3 of 54) 1607 Result(s) found 


Run Length Encodeing Compression example
Total Hit (1159) Module «Code LangId=1» ' Start a new project and add two command buttons to the form and aslo a text box ' Now place the follwing code below in to the general declarations selecion of the ' form and press 5F. Press the Commpress button and see what has happend to the ' string and then press ....Read More
ShowOpenWithDialog - Display the "Open with" dialog
Total Hit (1159)
GetExecutableFile - Find the program associated to a document file
Total Hit (2010)
SetScrollLockKey - Set the state of the ScrollLock key
Total Hit (2373)
StringBuilder Class. Very efficient way to append string
Total Hit (2133)
ForceTextBoxNumeric - Create a numeric Textbox
Total Hit (1585) «Code LangId=1» Private Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" _ (ByVal hWnd As Long, ByVal nIndex As Long) As Long Private Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" _ (ByVal hWnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) ....Read More
SynchronizeDirectories - Synchronize the contents of two directories
Total Hit (1481) «Code LangId=1»' Synchronize two directories ' ' This routine compares source and dest directories and copies files ' from source that are newer than (or are missing in) the destination directory ' if TWOWAYSYNC is True, files are synchronized in both ways ' NOTE: requires the CompareDirec ....Read More
JoinQuote2 - A Join variant that works with 2-dimensional arrays and quoted strings
Total Hit (979) «Code LangId=1»' Join variant that works with ' bi-dimensional arrays of any type ' and that encloses string values between quotes ' ' ARR is the 2-dimensional array whose element must be joined ' ROWSEPARATOR is the separator for rows (default is CRLF) ' COLSEPARATOR is the separator fol colu ....Read More
FormatFullName - Create a full name in the format "LastName, FirstName"
Total Hit (1648) «Code LangId=1»' Takes a first and last name and converts it to the format LastName, FirstName Function FormatFullName(ByVal FirstName As String, ByVal LastName As String) As _ String FirstName = Trim$(FirstName) LastName = Trim$(LastName) If FirstName = "" Then ....Read More
CelsiusToFahrenheit, FahrenheitToCelsius - Convert temperature values
Total Hit (1804) «Code LangId=1»' Returns the integer equal or higher than its argument Function Ceiling(Number As Double) As Long Ceiling = -Int(-Number) End Function «/Code»
Rnd2 - A random value in a range
Total Hit (1013) «Code LangId=1» ' A random number in the range (low, high) Function Rnd2(low As Single, high As Single) As Single Rnd2 = Rnd * (high - low) + low End Function «/Code»
IsValidSSN - Check a Social Security Number value
Total Hit (1997) «Code LangId=1»' Validates attributes of the SSN ' Returns True if valid, False if invalid ' 'Example: ' If IsValidSSN(Value:="333-44-3333", IsRequired:=True) then ... Function IsValidSSN(ByRef Value As String, Optional ByVal IsRequired As Boolean _ = True) As Boolean On Error ....Read More
Get the exit code of a process
Total Hit (2826) In a few cases, in particular when running MsDos batch files from within a VB application, you may want to determine the ERRORLEVEL set by an external application. You can't do it with a plain Shell statement, but the job becomes easy with the support of the GetProcessExitCode API function: «Code ....Read More
Check whether a serial or parallel port is available
Total Hit (1961) The Open statement also supports special device names such as COM1 or LPT2. You can build on this feature and use the Open command to test whether a given serial or parallel port is available. Here are two functions that perform this task: «Code LangId=1» ' Check whether a given COM serial port ....Read More
Play a MIDI file
Total Hit (3267) If you want to play a MIDI file from VB you have to use MCI functions. The main MCI function is mciSendString, that sends command strings to the system and execute them: «Code LangId=1» Declare Function mciSendString Lib "winmm" Alias "mciSendStringA" (ByVal _ lpstrCommand As String, ByVal ....Read More
Determine the current line in a multiline TextBox control
Total Hit (2713) You can determine the line where the caret is in a multiline TextBox control by sending the control a EM_LINEFROMCHAR message, as follows:
Evaluate the integer equal or higher than a given value
Total Hit (1805) The VBA language offers the Int() function, which returns the integer equal or lower than a given value, but lacks a similar function that returns the integer equal or higher than a given value. You can remedy with the following function: «Code LangId=1» ' Returns the integer equal or higher tha ....Read More
Get List of User/System DSN on your local machine using ODBC API
Total Hit (4723) «b»Step-By-Step Example«/b» - Create a standard exe project - Add the following code in form1 - Press F5 to run the project «code LangId=1»Option Explicit Private Declare Function SQLDataSources Lib "odbc32.dll" _ (ByVal hEnv As Long, _ ByVal fDirection As Integer, _ ....Read More
How to send a specific windows message to all windows ?
Total Hit (2364) Many times we need to send a specific message to other applications or windows itself to notify regarding some event. Windows provides a function called BroadcastSystemMessage. The BroadcastSystemMessage function sends a message to the specified recipients. The recipients can be applications, instal ....Read More
How can I print a preformated file directly to printer?
Total Hit (1881) «b»Step-By-Step Example«/b» 1. On a Microsoft NT 4.0 system, add a printer with a name that contains a space. 2. Create a text file in the C:\ folder, for example, test.txt. 3. Start a new Standard EXE project in Visual Basic. Form1 is created by default. 4. From the Project menu, select Refer ....Read More
This is a link to a different site Using the ChooseColor Common Dialog API
Total Hit (964) Although the API uses a structure to pass parameters to the ChooseColor API, the dialog can be shown by providing just the flags, hwndOwner, lStructSize and lpCustColors members completed. Other options, such as a hook, can be added to provide additional functionality such as positioning, custom cap ....Read More
This is a link to a different site Displaying Modal Form Activity on a Parent Form VB Progress Bar
Total Hit (752) This is simple code that demonstrates how to use a normal VB progress bar on a parent form (SDI or MDI) to track the activity being performed in another form, even when that form is modal. The demo also shows how to call SetParent to embed the progress bar inside the status bar panel. ....Read More
This is a link to a different site How to Determine Re-Ordered Column Positions in a ListView
Total Hit (946) Sending the listview extended style message LVS_EX_HEADERDRAGDROP enables repositioning/reordering of a ListView's main and subitem columns. However, this does not alter the index of the columns to match their new physical locations. VB remains unaware that repositioning has taken place (since it ....Read More
This is a link to a different site Detect when a Combo Box Drops Down or Closes Up
Total Hit (1351) This tip demonstrates how to detect a Combo Box drop down or close up by using subclassing. You will need to have installed and registered the Subclassing and Timer Assistant, available from this site at Subclassing without the crashes to run this sample. ....Read More
This is a link to a different site Responding to AppCommands
Total Hit (1268) The WM_APPCOMMAND message was added to Windows 2000 and ME to provide a mechanism to send the events from extended keys on newer keyboards to applications on the system. Extended keys are things like the back, forward and search button. This tip demonstrates how to intercept events from these keys i ....Read More
This is a link to a different site Cellular Automata - Crystal Model
Total Hit (778) A cellular automata are a class of mathematical systems which have been used widely in the investigation of complexity. An automaton is simple: an array of neighbouring cells each have a finite number of possible states. Each cell is then set to change its state when an imaginary clock ticks accordi ....Read More
This is a link to a different site Splitting the Easy Way
Total Hit (1051) The EasySplitter class provided with this download completely automates most of the tasks involved with setting up a split between two objects. All you need to do is tell it which two objects you want to split and which direction to split and it does the rest. ....Read More
This is a link to a different site Adding XP Visual Styles to Your Visual Basic Application
Total Hit (1472) When you run a Visual Basic application on an XP machine, you will see that although the form gets an XP-style title bar, the controls on the form still draw in the old-fashioned Windows style. However, it doesn't take much to persuade an application to use the new styles. In some cases, you can get ....Read More
This is a link to a different site Drawing Borders and Edges using the API DrawEdge Function
Total Hit (1540) The DrawEdge function is a useful function provided by the Win32 API. It can draw a variety of the edge styles used to draw buttons, frames and borders around controls and forms. The source code for this article shows you how to: Use the DrawEdge to achieve a variety of edge styles. Evaluate the ....Read More
This is a link to a different site Browsing For Folders
Total Hit (1461) The Folder Browse Dialog is the missing dialog in VB - it can't be called from a run-time function and it is missing from the Common Dialog OCX as well. Whilst a number of code samples demonstrate that calling this dialog is simple, many ignore the most important feature: the ability to initialise t ....Read More

(Page 3 of 54) 1607 Result(s) found  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ...

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