private static extern short SQLBrowseConnect(IntPtr hconn, StringBuilder inString,

        short inStringLength, StringBuilder outString, short outStringLength,

        StringBuilder inString = new StringBuilder(SQL_DRIVER_STR);

        StringBuilder outString = new StringBuilder(DEFAULT_RESULT_SIZE);

            StringBuilder completedConnString = new StringBuilder(1024);

            StringBuilder str = new StringBuilder();

  private static extern short SQLBrowseConnect( IntPtr handleConnection, StringBuilder connectionString, short stringLength, StringBuilder outConnection, short bufferLength, out short stringLength2Ptr );

        StringBuilder CharacterAttributePtr,

        StringBuilder CharacterAttributePtr,

    StringBuilder ServerName, short BufferLength1, ref short NameLength1Ptr,

    StringBuilder Description, short BufferLength2, ref short NameLength2Ptr);

    StringBuilder dsn_name = new StringBuilder(MAX_DSN_LENGTH);

    StringBuilder desc_name = new StringBuilder(128);

        StringBuilder szConnStrOut,

    ByVal cbConnStrIn As Short, ByVal szConnStrOut As Text.StringBuilder, ByVal cbConnStrOutMax As Short, _

        StringBuilder  out_connect = new StringBuilder(MAX_CONNECT_LEN);

        StringBuilder state = new StringBuilder(256);

        StringBuilder msg   = new StringBuilder(256);

        StringBuilder Sqlstate,

        StringBuilder MessageText,

                   StringBuilder TargetValue, int BufferLength,

        StringBuilder val = new StringBuilder(1024);

   short record, StringBuilder sqlState, out int nativeError,

   StringBuilder errorMsg, short errorMsgMax, out short errorMsgLength);

    ByVal record As Short, ByVal sqlState As Text.StringBuilder, ByRef nativeError As Integer,

    ByVal errorMsg As Text.StringBuilder, ByVal errorMsgMax As Short, ByRef errorMsgLength As Short) As Short

   StringBuilder directory, ref int bufferLength);

   (ByVal hConnect As IntPtr, ByVal directory As StringBuilder, ByRef bufferLength As Integer) _

    Dim s As New System.Text.StringBuilder

static extern bool InternetGetCookieEx(string pchURL, string pchCookieName, StringBuilder pchCookieData, ref System.UInt32 pcchCookieData, int dwFlags, IntPtr lpReserved);

    ByVal pchCookieData As System.Text.StringBuilder, ByRef pcchCookieData As Integer, ByVal flags As Integer, ByVal reserved As Integer) As _

    static extern bool InternetGetCookieEx(string pchURL, string pchCookieName, StringBuilder pchCookieData, ref System.UInt32 pcchCookieData, int dwFlags, IntPtr lpReserved);

        StringBuilder cookieData = new StringBuilder(Convert.ToInt32(datasize));

        // Allocate stringbuilder large enough to hold the cookie    

        cookieData = new StringBuilder(Convert.ToInt32(datasize));

static extern bool InternetGetCookieEx(string pchURL, string pchCookieName, StringBuilder pchCookieData, ref System.UInt32 pcchCookieData, int dwFlags, IntPtr lpReserved);

    ByVal pchCookieData As System.Text.StringBuilder, ByRef pcchCookieData As Integer, ByVal flags As Integer, ByVal reserved As Integer) As _

   out int errorCode, StringBuilder buffer, ref int bufferLength);

    Shared Function PrivacySetZonePreference( ByVal dwZone As Integer, ByVal dwType As Integer, ByVal dwTemplate As Integer, <MarshalAs(UnmanagedType.LPWStr)> ByVal lpszPreference As StringBuilder) As Integer

    Dim sBuffer As StringBuilder

    sBuffer = New StringBuilder(" ", dwBufferLength)

        sBuffer = New StringBuilder(dwBufferLength)

    Shared Function PrivacySetZonePreference( ByVal dwZone As Integer, ByVal dwType As Integer, ByVal dwTemplate As Integer, <MarshalAs(UnmanagedType.LPWStr)> ByVal lpszPreference As StringBuilder) As Integer

    Dim sPreference As StringBuilder

        sPreference = New StringBuilder

static extern uint CharLowerBuff([In,Out] StringBuilder lpsz, uint cchLength);

static extern uint CharUpperBuff([In,Out] StringBuilder lpsz, uint cchLength);

                    StringBuilder sb = new StringBuilder(1024);

        void IContextMenu.GetCommandString(int idCmd, uint uFlags, int pwReserved, StringBuilder commandString, int cchMax)

                commandString = new StringBuilder("...");

                commandString = new StringBuilder("...");

    internal static extern uint DragQueryFile(uint hDrop, uint iFile, StringBuilder buffer, int cch);

static extern int DrawTextEx(IntPtr hdc, StringBuilder lpchText, int cchText,

static extern int DrawTextEx(IntPtr hdc, StringBuilder lpchText, int cchText,

     static extern int GetClipboardFormatName(uint format, [Out] StringBuilder lpszFormatName, int cchMaxCount);

         StringBuilder sb = new StringBuilder(1000);

    public static extern int GetWindowText(IntPtr hWnd, StringBuilder lpWindowText, int nMaxCount);

        StringBuilder strbTitle = new StringBuilder(255);

   [Out] StringBuilder pszItemText, uint cchItemText);

  ByRef pszItemText As System.Text.StringBuilder, _

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

   ByVal lpClassName As System.Text.StringBuilder, _

    <Out()> ByVal lpClassName As System.Text.StringBuilder, _

    StringBuilder ClassName = new StringBuilder(256);

   Dim sClassName As New StringBuilder("", 256)

static extern int GetClipboardFormatName(uint format, [Out] StringBuilder

     static extern int GetClipboardFormatName(uint format, [Out] StringBuilder lpszFormatName, int cchMaxCount);

         StringBuilder sb = new StringBuilder(1000);

   [Out] StringBuilder lpString, int nMaxCount);

    ByVal lpString As StringBuilder, _

    ByVal lpString As StringBuilder, _

   [Out] StringBuilder lpString, int nMaxCount);

    ByVal lpString As StringBuilder, _

    ByVal lpString As StringBuilder, _

static extern bool GetKeyboardLayoutName([Out] StringBuilder pwszKLID);

  System.Text.StringBuilder locale = new System.Text.StringBuilder(new string(' ', 256));

    private static extern long GetKeyboardLayoutName(StringBuilder pwszKLID);

      var name = new StringBuilder(KL_NAMELENGTH);

static extern bool GetKeyboardLayoutName([Out] StringBuilder pwszKLID);

  System.Text.StringBuilder locale = new System.Text.StringBuilder(new string(' ', 256));

static extern int GetKeyNameText(int lParam, [Out] StringBuilder lpString,

static extern int GetMenuString(IntPtr hMenu, uint uIDItem, [Out,MarshalAs(UnmanagedType.LPStr)] StringBuilder lpString, int nMaxCount, uint uFlag);

         StringBuilder menuName = new StringBuilder(0x20);

   [Out,MarshalAs(UnmanagedType.LPStr)] StringBuilder lpString, int nMaxCount, uint uFlag);

         StringBuilder menuName = new StringBuilder(0x20);

   StringBuilder lpszFileName, uint cchFileNameMax);

    lpszFileName As StringBuilder, cchFileNameMax As UInteger) As UInteger

StringBuilder fileName = new StringBuilder(2000);

static extern int LoadString(IntPtr hInstance, uint uID,StringBuilder lpBuffer, int nBufferMax);

Public Shared Function LoadString(ByVal hInstance As IntPtr, ByVal uID As UInt32, ByVal lpBuffer As Text.StringBuilder, ByVal nBufferMax As Integer) As Integer

suggests that a StringBuilder be used instead of a string type as was listed previously.

    StringBuilder sb = new StringBuilder(255);

    <MarshalAs(UnmanagedType.LPStr)> ByVal lpText as StringBuilder, _

    <MarshalAs(UnmanagedType.LPStr)> ByVal lpCaption as StringBuilder, _

   return MessageBoxTimeOut(hWnd, New StringBuilder(Message), New StringBuilder(Caption), MessageBoxOptions,0, TimeOutMilliSeconds)

static extern bool OemToChar(IntPtr lpszSrc, [Out] StringBuilder lpszDst);

    ByVal lpszDst As StringBuilder) As Boolean

    static extern bool OemToCharA(char[] lpszSrc, [Out] StringBuilder lpszDst);

        StringBuilder strBuilder = new StringBuilder(str.Length);    

         <[In](), Out()> ByVal lpszSrc As String, ByVal lpszDst As System.Text.StringBuilder) As Boolean

    Dim lpszDst As New System.Text.StringBuilder

static extern uint RealGetWindowClass(IntPtr hwnd, [Out] StringBuilder pszType,

                        ByVal lpString As StringBuilder, _

    StringBuilder pszType = new StringBuilder();

    Dim theDialogTextHolder As New StringBuilder(1000)   'hardcoding capacity - represents maximum text length

    StringBuilder text,

    StringBuilder text,

static extern bool SystemParametersInfo(uint uiAction, uint uiParam, StringBuilder pvParam, SPIF fWinIni);

    static extern bool SystemParametersInfo(uint uiAction, uint uiParam, StringBuilder pvParam, SPIF fWinIni);

        StringBuilder sb = new StringBuilder(500);

    Private Shared Function GetWindowText(hWnd As IntPtr, lpString As StringBuilder, nMaxCount As Integer) As Integer

        Dim sb As New StringBuilder(1024)

   [Out] StringBuilder lpChar, uint uFlags, IntPtr hkl);

Public Declare Function ToAsciiEx Lib "user32" (ByVal uVirtKey As UInteger, ByVal uScanCode As UInteger, ByVal lpKeyState As Byte(), <Out()> ByVal lpChar As System.Text.StringBuilder, ByVal uFlags As UInteger, ByVal hkl As IntPtr) As Integer

   lpKeyState, [Out, MarshalAs(UnmanagedType.LPWStr)] StringBuilder pwszBuff,

        ByVal lpChar As System.Text.StringBuilder,

I've had managed heap corruption when calling this, even when the appropriate StringBuilder.Capacity is provided as the cchBuff parameter, unless the SizeConst is also specified on the MarshalAs attribute. If someone more knowledgeable can provide additional information, please edit this.

    static extern int ToUnicodeEx(uint wVirtKey, uint wScanCode, byte [] lpKeyState, [Out, MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pwszBuff, int cchBuff, uint wFlags, IntPtr dwhkl);

    System.Text.StringBuilder sbString = new System.Text.StringBuilder();

   lpKeyState, [Out, MarshalAs(UnmanagedType.LPWStr)] StringBuilder pwszBuff,

    static extern int ToUnicodeEx(uint wVirtKey, uint wScanCode, byte [] lpKeyState, [Out, MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pwszBuff, int cchBuff, uint wFlags, IntPtr dwhkl);

    System.Text.StringBuilder sbString = new System.Text.StringBuilder();

      StringBuilder desc = new StringBuilder();

      StringBuilder desc = new StringBuilder();

static extern int wsprintf([Out] StringBuilder lpOut, string lpFmt, __arglist);

    StringBuilder vetoName,

        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);

   [MarshalAs(UnmanagedType.LPStr)] StringBuilder pbData,

    StringBuilder _buffer = new StringBuilder();

    StringBuilder _account = new StringBuilder(_bufferSize);

    StringBuilder _domain = new StringBuilder(_bufferSize);

   Dim sb As New StringBuilder

   Dim sb As New StringBuilder

static extern bool GetUserName(System.Text.StringBuilder sb, ref Int32 length);

Public Function GetUserName(<MarshalAs(UnmanagedType.LPTSTR)>sb As System.Text.StringBuilder, _

        static extern bool GetUserName(StringBuilder lpBuffer, ref int nSize);    

            StringBuilder Buffer = new StringBuilder(64);

        Public Function GetUserName(<MarshalAs(UnamagedType.LPTSTR)>System.Text.StringBuilder sb, _

            Dim Buffer = new StringBuilder(64)

public static extern bool GetUserName(System.Text.StringBuilder sb, ref Int32 length);

$str = New-Object System.Text.StringBuilder -ArgumentList $size