static extern public int DTL_C_DEFINE(ref int name_id, StringBuilder def);

    public static void DtlErrorS(int dtlSts, StringBuilder msg, int buffSize)

    public static int DtlVersion(StringBuilder versionText, int maxCharsToReturn)

    public static int DtlCDefine(ref int nameId, StringBuilder defString)

        static extern public void DTL_ERROR_S(int iostat, StringBuilder msg, int buffsz);

        static extern public int DTL_VERSION(StringBuilder sb, int maxChars);

        static extern public int DTL_C_DEFINE(ref int name_id, StringBuilder def);

        var msg = new StringBuilder(256);

        var definition = new StringBuilder(256);

    public static void DtlErrorS(int dtlSts, StringBuilder msg, int buffSize)

    public static int DtlVersion(StringBuilder versionText, int maxCharsToReturn)

    public static int DtlCDefine(ref int nameId, StringBuilder defString)

        static extern public void DTL_ERROR_S(int iostat, StringBuilder msg, int buffsz);

        static extern public int DTL_VERSION(StringBuilder sb, int maxChars);

        static extern public int DTL_C_DEFINE(ref int name_id, StringBuilder def);

    public static void DtlErrorS(int dtlSts, StringBuilder msg, int buffSize)

    public static int DtlVersion(StringBuilder versionText, int maxCharsToReturn)

    public static int DtlCDefine(ref int nameId, StringBuilder defString)

        static extern public void DTL_ERROR_S(int iostat, StringBuilder msg, int buffsz);

        static extern public int DTL_VERSION(StringBuilder sb, int maxChars);

        static extern public int DTL_C_DEFINE(ref int name_id, StringBuilder def);

        var msg = new StringBuilder(256);

static extern public void DTL_ERROR_S(int iostat, StringBuilder msg, int buffsz);

    public static void DtlErrorS(int dtlSts, StringBuilder msg, int buffSize)

    public static int DtlVersion(StringBuilder versionText, int maxCharsToReturn)

    public static int DtlCDefine(ref int nameId, StringBuilder defString)

        static extern public void DTL_ERROR_S(int iostat, StringBuilder msg, int buffsz);

        static extern public int DTL_VERSION(StringBuilder sb, int maxChars);

        static extern public int DTL_C_DEFINE(ref int name_id, StringBuilder def);

        var msg = new StringBuilder(256);

    public static void DtlErrorS(int dtlSts, StringBuilder msg, int buffSize)

    public static int DtlVersion(StringBuilder versionText, int maxCharsToReturn)

    public static int DtlCDefine(ref int nameId, StringBuilder defString)

        static extern public void DTL_ERROR_S(int iostat, StringBuilder msg, int buffsz);

        static extern public int DTL_VERSION(StringBuilder sb, int maxChars);

        static extern public int DTL_C_DEFINE(ref int name_id, StringBuilder def);

    public static void DtlErrorS(int dtlSts, StringBuilder msg, int buffSize)

    public static int DtlVersion(StringBuilder versionText, int maxCharsToReturn)

    public static int DtlCDefine(ref int nameId, StringBuilder defString)

        static extern public void DTL_ERROR_S(int iostat, StringBuilder msg, int buffsz);

        static extern public int DTL_VERSION(StringBuilder sb, int maxChars);

        static extern public int DTL_C_DEFINE(ref int name_id, StringBuilder def);

        var msg = new StringBuilder(256);

    public static void DtlErrorS(int dtlSts, StringBuilder msg, int buffSize)

    public static int DtlVersion(StringBuilder versionText, int maxCharsToReturn)

    public static int DtlCDefine(ref int nameId, StringBuilder defString)

        static extern public void DTL_ERROR_S(int iostat, StringBuilder msg, int buffsz);

        static extern public int DTL_VERSION(StringBuilder sb, int maxChars);

        static extern public int DTL_C_DEFINE(ref int name_id, StringBuilder def);

    public static void DtlErrorS(int dtlSts, StringBuilder msg, int buffSize)

    public static int DtlVersion(StringBuilder versionText, int maxCharsToReturn)

    public static int DtlCDefine(ref int nameId, StringBuilder defString)

        static extern public void DTL_ERROR_S(int iostat, StringBuilder msg, int buffsz);

        static extern public int DTL_VERSION(StringBuilder sb, int maxChars);

        static extern public int DTL_C_DEFINE(ref int name_id, StringBuilder def);

static extern public int DTL_VERSION(StringBuilder sb, int maxChars);

    public static int DtlVersion(StringBuilder versionText, int maxCharsToReturn)

    public static void DtlErrorS(int dtlSts, StringBuilder msg, int buffSize)

    public static int DtlVersion(StringBuilder versionText, int maxCharsToReturn)

    public static int DtlCDefine(ref int nameId, StringBuilder defString)

        static extern public void DTL_ERROR_S(int iostat, StringBuilder msg, int buffsz);

        static extern public int DTL_VERSION(StringBuilder sb, int maxChars);

        static extern public int DTL_C_DEFINE(ref int name_id, StringBuilder def);

        var msg = new StringBuilder(256);

        StringBuilder referencedDomainName = new StringBuilder();

        StringBuilder Name,

        StringBuilder ReferencedDomainName,

        StringBuilder sbName = new StringBuilder();

        StringBuilder sbReferencedDomainName = new StringBuilder();

            StringBuilder Name,

            StringBuilder ReferencedDomainName,

            StringBuilder sbName = new StringBuilder();

            StringBuilder sbReferencedDomainName = new StringBuilder();

            StringBuilder Name,

            StringBuilder ReferencedDomainName,

            StringBuilder sbName = new StringBuilder();

            StringBuilder sbReferencedDomainName = new StringBuilder();

     StringBuilder ServerName,

            (ByVal ServerName As StringBuilder, _

        ByVal ServerName As StringBuilder, _

Dim SvrNameBldr As New StringBuilder(ServerName)

     StringBuilder server = new StringBuilder(textBox1.Text);

         StringBuilder ServerName,

        StringBuilder server = new StringBuilder(Server);

        (ByVal ServerName As StringBuilder, _

    Dim svr As New StringBuilder(server)

private static extern int QuickUsbFindModules(StringBuilder nameList, int bufferLength);

            StringBuilder testData = new StringBuilder("");

    static extern int CreateProfile( [MarshalAs(UnmanagedType.LPWStr)] String pszUserSid, [MarshalAs(UnmanagedType.LPWStr)] String pszUserName, [Out, MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pszProfilePath, uint cchProfilePath);

        System.Text.StringBuilder s= new System.Text.StringBuilder(260);

            public static extern int CreateProfile([MarshalAs(UnmanagedType.LPWStr)] String pszUserSid, [MarshalAs(UnmanagedType.LPWStr)] String pszUserName, [Out, MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pszProfilePath, uint cchProfilePath);

    $ProfilePath = New-Object System.Text.StringBuilder($intSizeOfProfilePath)

static extern bool GetProfilesDirectory(StringBuilder path, ref int size);

   StringBuilder path = new StringBuilder(4*1024);

    StringBuilder lpszErrorString,  // buffer to hold error string

                StringBuilder sb=new StringBuilder(512);

        int dwMessageId, int dwLanguageId, System.Text.StringBuilder lpBuffer, int nSize, IntPtr[] Arguments);

        int dwMessageId, int dwLanguageId, System.Text.StringBuilder lpBuffer, int nSize, IntPtr[] Arguments);

        System.Text.StringBuilder sbMsg = new System.Text.StringBuilder(1024);

   public static extern int GetClassName(IntPtr hWnd, StringBuilder buf, int nMaxCount);

   (hWnd as IntPtr, buf As StringBuilder, nMaxCount As Integer) As Integer

   StringBuilder strClassName = new StringBuilder(256);

static extern int GetModuleFileNameEx(IntPtr hProcess, IntPtr hModule, StringBuilder lpFilename, int nSize);

Declare Function GetModuleFileNameEx Lib "coredll.dll" (ByVal hProcess As IntPtr, ByVal hModule As IntPtr, ByVal lpFileName As System.Text.StringBuilder, ByVal nSize As Int32) As Int32

static extern int GetModuleFileNameEx(IntPtr hProcess, IntPtr hModule, StringBuilder lpFilename, int nSize);

Declare Function GetModuleFileNameEx Lib "coredll.dll" (ByVal hProcess As IntPtr, ByVal hModule As IntPtr, ByVal lpFileName As System.Text.StringBuilder, ByVal nSize As Int32) As Int32

   IntPtr hKey, [Out()]StringBuilder lpClass, ref uint lpcchClass,

OutAttribute is used with [StringBuilder] parameters because StringBuilder is a reference type. Using the out keyword will result in passing the reference by-reference, but in this case the reference must be passed by-value.

static extern int RegQueryValueEx( UIntPtr hkey, String lpValueName, IntPtr lpReserved, ref KeyType lpType, StringBuilder lpData, ref uint lpcbData );

We pass a StringBuilder for lpData to deal with null-terminated strings that normally come back from this operation.

static extern int SHCreateShortcut(StringBuilder szShortcut, StringBuilder szTarget);

Private Declare Function SHCreateShortcut% Lib "coredll" (ByVal szShortcut As System.Text.StringBuilder, ByVal szTarget As System.Text.StringBuilder)!!!!User-Defined Types:

    static extern int SHGetSpecialFolderPath(IntPtr hwndOwner, StringBuilder lpszPath, int nFolder, int fCreate);

    static extern int SHCreateShortcut(StringBuilder szShortcut, StringBuilder szTarget);

    StringBuilder programs = new StringBuilder(255);

    StringBuilder shortcutLocation = new StringBuilder(Path.Combine(programs.ToString(), "Foo.lnk");

    StringBuilder shortcutTarget = new StringBuilder("\"" + @"\Program Files\Foo\Foo.exe" + "\"");

static extern bool SHGetShortcutTarget(StringBuilder szShortcut, StringBuilder szTarget, int cbMax);

StringBuilders are generally used in place of LPTSTR's in PInvoke signatures. szShortcut is a full path to a shortcut file (which usually has the extension .lnk), szTarget is a buffer to receive the target path, and cbMax is the length of the szTarget buffer. The function returns success/failure; it isn't documented whether it returns failure if cbMax is too small, or if the target-path is truncated or what.

static extern int SHGetSpecialFolderPath(IntPtr hwndOwner, StringBuilder lpszPath, int nFolder, int fCreate);

        StringBuilder resultPath = new StringBuilder(255);

   [Out] StringBuilder buffer, out int BufferSize,

   [Out] StringBuilder RoutingInfoBuffer, out int RoutingInfoBufferSize);

   [Out] StringBuilder RoutingInfoBuffer, int RoutingInfoBufferSize);

static extern UInt32 CertGetNameString(IntPtr CertContext, UInt32 lType, UInt32 lFlags, IntPtr pTypeParameter, System.Text.StringBuilder str, UInt32 cch);

        StringBuilder Buffer = new StringBuilder(255);

    private static extern uint _certNameToStr(uint dwCertEncodingType, IntPtr pName, uint dwStrType, StringBuilder psz, uint csz);

        StringBuilder psz = null;

            psz = new StringBuilder((int)ret);

        StringBuilder ppszError);

    Public Shared Function CertStrToName(dwCertEncodingType As UInteger, pszX500 As String, dwStrType As UInteger, pvReserved As IntPtr, pbEncoded As Byte(), ByRef pcbEncoded As UInteger, ppszError As StringBuilder) As Boolean

    StringBuilder szDataDescr,

     ByVal szDataDescr As StringBuilder, _

public static extern SQL_RETURN_CODE    SQLInstallerError(int iError, ref SQL_INSTALLER_ERROR_CODE pfErrorCode, StringBuilder lpszErrorMsg, int cbErrorMsgMax, ref int pcbErrorMsg);

Public Shared Function SQLInstallerError(ByVal iError As Integer, ByRef pfErrorCode As Integer, ByVal lpszErrorMsg As StringBuilder, ByVal cbErrorMsgMax As Integer, ByRef pcbErrorMsg As Integer) As SQL_RETURN_CODE

StringBuilder         errorMesg        = new StringBuilder( 512 ) ;

Dim errorMsg As New StringBuilder(512)

public static extern uint GetRoleText( uint dwRole, [Out] StringBuilder lpszRole, uint cchRoleMax);

    Private Shared Function GetRoleText(ByVal role As Integer, ByVal outRole As StringBuilder, ByVal outRoleSize As Integer) As Integer

public static extern uint GetStateText( uint dwStateBit, [Out] StringBuilder lpszStateBit, uint cchStateBitMax );

            StringBuilder szPatchCode,

            StringBuilder szTargetProductCode,

            StringBuilder szTargetUserSid,

            StringBuilder szPatchCode = new StringBuilder(40);

            StringBuilder szTargetProductCode = new StringBuilder(40);

            StringBuilder szTargetUserSid = new StringBuilder(300);

    private static extern UInt32 MsiEnumRelatedProducts(string strUpgradeCode, int reserved, int iIndex, StringBuilder sbProductCode);

StringBuilder sbProductCode = new StringBuilder(39);

[Out] StringBuilder szXMLData,

StringBuilder szXMLData = new StringBuilder((int)pcchXMLData);

   [Out] StringBuilder szResultBuf, ref int pcchResultBuf);

public static extern UInt32 MsiGetComponentPath(string szProduct, string szComponent, [Out] StringBuilder lpPathBuf,  ref UInt32 pcchBuf);

StringBuilder sbPc = new StringBuilder(50);

StringBuilder sbFeat = new StringBuilder(100);

StringBuilder sbComp = new StringBuilder(50);

StringBuilder sbPth = new StringBuilder(500);

static extern int MsiGetFileVersion(string szFilePath, System.Text.StringBuilder lpVersionBuf, ref int pcchVersionBuf, System.Text.StringBuilder lpLangBuf, ref int pcchLangBuf);

    [Out] StringBuilder lpValue,

   StringBuilder returnValue = new StringBuilder((int)pcchValue);

static extern Int32 MsiGetProductInfo(string product, string property, [Out] StringBuilder valueBuf, ref Int32 len);

System.Text.StringBuilder builder = new System.Text.StringBuilder(len);

static extern int MsiGetProductProperty(IntPtr hProduct, string szProperty, StringBuilder lpValueBuf, ref uint pcchValueBuf);

   [Out] StringBuilder szValueBuf, ref int pchValueBuf);

StringBuilder sb = new StringBuilder();

    [Out] StringBuilder szProductCode, [Out] StringBuilder szFeatureId, [Out] StringBuilder szComponentCode);

  StringBuilder sbPc = new StringBuilder(50);

  StringBuilder sbFeat = new StringBuilder(100);

  StringBuilder sbComp = new StringBuilder(50);

   [Out] StringBuilder szPathBuf, ref int pcchPathBuf);

   [Out] StringBuilder szPathBuf, ref int pcchPathBuf);

static extern uint MsiProvideAssembly(string assembly, string context, uint mode, int info, System.Text.StringBuilder path, ref int pathSize);

    StringBuilder path = new StringBuilder(1024);

   StringBuilder szValueBuf, ref int pcchValueBuf);

        var builder = new StringBuilder(length + 1);

        StringBuilder strSid = new StringBuilder();

                           <[In](), Out(), [Optional]()> ByVal lpCommandLine As StringBuilder, _

Use StringBuilder for lpCommandLine parameter for unicode version of this function.

    StringBuilder pszProvName,

    StringBuilder pszProvName,

    StringBuilder pszProvName,

    StringBuilder pszName;

        pszName = new StringBuilder(cbName);

         System.Text.StringBuilder pszProvName,

         System.Text.StringBuilder pszTypeName,

     $pszTypeName = New-Object Text.StringBuilder

     $pszProvName = New-Object Text.Stringbuilder

    System.Text.StringBuilder pszTypeName,

    StringBuilder pszProvName,

StringBuilder providerName = new StringBuilder(255);