Delete a record from a Combo Box selection Using Access Database. Put a Combobox and a Command Button on a form Create an Access Database Form_Load With Combo1 .Clear .AddItem “David” .AddItem “Bob” End WithEnd Sub Public Sub Command1_Click() Dim MyConn As New ADODB.Connection Dim MySql As String With MyConn .ConnectionString = strJetProvider .Open End With MySql = “DELETE FROM SQL WHERE ” MySql = MySql & ” [Field] ='”… Read More »
Sometimes you have stored proc that takes 2,3 or 5 min to execute. Application that lock up frequently frustrates users and waste their time and resources. Solution use ADO ASYNCHROUS OPTION to get back CPU resorces. Public Sub ExecuteAsync() Dim cmd As ADODB.Command Set cmd = New ADODB.Command cmd.ActiveConnection = “DSN=test” cmd.CommandTimeout = 180 cmd.CommandText = “sp_name” cmd.CommandType = adCmdStoredProc cmd.EXECUTE , , adAsyncExecute ‘<—… Read More »
Calculate the time that your internet connection is active. Module Private Declare Function RasEnumConnections Lib “rasapi32.dll” Alias “RasEnumConnectionsA” (lpRasConn As Any, lpcb As Long, lpcConnections As Long) As Long Public Const RAS_MAXENTRYNAME As Integer = 256Public Const RAS_MAXDEVICETYPE As Integer = 16Public Const RAS_MAXDEVICENAME As Integer = 128Public Const RAS_RASCONNSIZE As Integer = 412Public Const ERROR_SUCCESS = 0… Read More »
This module will allow you to create a WinSock connection, as well as resolve computernames to IPs and vice-versa. Module Option Explicit Public Const SOCKET_ERROR = -1Public Const AF_INET = 2Public Const PF_INET = AF_INETPublic Const MAXGETHOSTSTRUCT = 1024Public Const SOCK_STREAM = 1Public Const MSG_PEEK = 2 Private Type SockAddr sin_family As Integer sin_port As Integer sin_addr As String * 4 sin_zero… Read More »
Say you to check the time and date of a remote computer, be it a server or workstation. Here is how you do it. Module Option Explicit ‘API StructuresType TIME_OF_DAY_INFO tod_elapsed As Long tod_msecs As Long tod_hours As Long tod_mins As Long tod_secs As Long tod_hunds As Long tod_timezone As Long tod_tinterval As Long tod_day As Long tod_month As Long tod_year As Long tod_weekday As LongEnd Type ‘NetAPI CallsPublic Declare… Read More »
Copy what you see in the Screen or in a Form into the clipboard. Module Option Explicit Private Const CCHDEVICENAME = 32Private Const CCHFORMNAME = 32Private Const SRCCOPY = &HCC0020 ‘ (DWORD) destination = source Private Type DEVMODE dmDeviceName As String * CCHDEVICENAME dmSpecVersion As Integer dmDriverVersion As Integer dmSize As Integer dmDriverExtra As Integer dmFields As Long dmOrientation As Integer dmPaperSize As Integer dmPaperLength As Integer dmPaperWidth… Read More »
Create a Form and place this code inside. Sorry but the comments are in german. Code Option Explicit Dim offx% ‘ x-offset zur mitteDim offy% ‘ y-offset zur mitteDim anz% ‘ anzahl sterneDim bahnx%(100, 180) ‘ x-tabDim bahny%(100, 180) ‘ y-tabDim starwi%(500) ‘ anz%Dim starba%(500) ‘ anz%Dim cosi(360) ‘ cos-tabDim sini(360) ‘ sin-tabDim st%Dim wert ‘ rad in degDim x% … Read More »
With a little API magic, you can check the current screen resolution, and change it at runtime if needed. Module Option Explicit ‘Declares: Public Declare Function GetSystemMetrics Lib “user32.dll” (ByVal nIndex As Long) As LongPrivate Declare Function EnumDisplaySettings Lib “user32.dll” Alias “EnumDisplaySettingsA” (ByVal lpszDeviceName As Long, ByVal iModeNum As Long, lpDevMode As Any) As BooleanPublic Declare Function ChangeDisplaySettings… Read More »
Use this code to read or set the current desktop color settings. Module Option Explicit Private Declare Function GetSysColor Lib “user32.dll” (ByVal nindex As Long) As LongPrivate Declare Function SetSysColors Lib “user32.dll” (ByVal nChanges As Long, lpSysColor As Long, lpColorValues As Long) As Long Public Enum WindowsItem COLOR_ACTIVEBORDER = 10 COLOR_ACTIVECAPTION = 2 COLOR_APPWORKSPACE = 12 COLOR_BACKGROUND = 1 COLOR_BTNFACE = 15 COLOR_BTNHIGHLIGHT =… Read More »
Simple method to print a text file to the default printer. Module Option Explicit Public Sub PrintTXTFile(FileName As String) Dim x As Integer Dim s As String x = FreeFile On Error GoTo HandleError Open FileName For Input As x Do While Not EOF(x) Line Input #x, s Printer.Print s Loop Printer.EndDoc Close #x Exit SubHandleError: MsgBox “Error :” & Err.Description, vbCritical, “Printing File…”End Sub Usage Create a Form with… Read More »