Ports(i).pPortName = LPSTRto String(PortsStruct(i).pPortName) This function can be used for different types of values The most basic technique consists of passing it an expression that holds the value to display. Follow this answer to receive notifications.
To append text to your string this way: str str & 'and this is more text'. To appropriately display a value, the Visual Basic language provides a function named Format. Another way to do this is to add the new characters to the string as follows: Dim str As String str ''. Ports(i).pDescription = LPSTRto String(PortsStruct(i).pDescription) So far, after performing a calculation, we were presenting the result 'as is'. 'Convert the returned String Pointer Values To VB String TypeĬopyMem PortsStruct(0), ByVal TempBuff, pcbNeeded Ret = EnumPorts(ServerName, 2, TempBuff, pcbNeeded, pcbNeeded, pcReturned) TempBuff = HeapAlloc(GetProcessHeap(), 0, pcbNeeded)
#Visual basic instring windows#
Ret = EnumPorts(ServerName, 2, TempBuff, 0, pcbNeeded, pcReturned) So I am trying to make a Windows Form Application in Visual Studio using Visual Basic that has a textbox where you input a sentence, another textbox where you can input a word that is in that sentence, then a button that when it is clicked the position(s) of the word entered in the sentence are outputted onto a label. ' Get the amount of bytes needed To contain the data returned by the API Call Public Function GetAvailablePorts(ServerName As String) As Longĭim PortsStruct(0 To 100) As API_PORT_INFO_2 'or leave it blank "" To Get the ports of the local Machine 'Use ServerName To specify the name of a Remote Workstation i.e.
LPSTRto String = TrimStr(StrConv(LPSTRto String, vbUnicode)) 'Initialize String so we have something To copy the String in ToĬopyMem ByVal StrPtr(LPSTRtoSTRING), ByVal lngPointer, lngLength Public Function LPSTRto String( ByVal lngPointer As Long) As String If x > 0 Then TrimStr = Left(strName, x - 1) Else TrimStr = strName Public Function TrimStr(strName As String) As String Private Declare Function HeapFree Lib "kernel32.dll" ( ByVal hHeap As Long, ByVal dwFlags As Long, lpMem As Any) As Long Private Declare Function GetProcessHeap Lib "kernel32.dll" () As Long Developing AutoCAD Plugins using VB.NET with Windows Forms. AutoCAD Programming using VB.NET - Hands On 103 Lectures 12 hours. Private Declare Function HeapAlloc Lib "kernel32.dll" ( ByVal hHeap As Long, ByVal dwFlags As Long, ByVal dwBytes As Long) As Long VB.NET Masterclass: Learn Visual Basic and VBScript. Private Declare Sub CopyMem Lib "kernel32.dll" Alias "RtlMoveMemory" (pTo As Any, uFrom As Any, ByVal lSize As Long) Private Declare Function lstrlenW Lib "kernel32.dll" ( ByVal lpString As Long) As Long Private Declare Function EnumPorts Lib "winspool.drv" Alias "EnumPortsA" ( ByVal pName As String, ByVal Level As Long, ByVal lpbPorts As Long, ByVal cbBuf As Long, pcbNeeded As Long, pcReturned As Long) As Long
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