IVsTextLayer.CopyLineText Method

项目
08/03/2012

Puts the specified span of text into a caller-allocated buffer

Namespace: Microsoft.VisualStudio.TextManager.Interop
Assembly: Microsoft.VisualStudio.TextManager.Interop (in Microsoft.VisualStudio.TextManager.Interop.dll)

Syntax

声明
Function CopyLineText ( _
    iStartLine As Integer, _
    iStartIndex As Integer, _
    iEndLine As Integer, _
    iEndIndex As Integer, _
    pszBuf As IntPtr, _
    <OutAttribute> ByRef pcchBuf As Integer _
) As Integer

int CopyLineText(
    int iStartLine,
    int iStartIndex,
    int iEndLine,
    int iEndIndex,
    IntPtr pszBuf,
    out int pcchBuf
)

int CopyLineText(
    [InAttribute] int iStartLine, 
    [InAttribute] int iStartIndex, 
    [InAttribute] int iEndLine, 
    [InAttribute] int iEndIndex, 
    [InAttribute] IntPtr pszBuf, 
    [InAttribute] [OutAttribute] int% pcchBuf
)

abstract CopyLineText : 
        iStartLine:int * 
        iStartIndex:int * 
        iEndLine:int * 
        iEndIndex:int * 
        pszBuf:IntPtr * 
        pcchBuf:int byref -> int

function CopyLineText(
    iStartLine : int, 
    iStartIndex : int, 
    iEndLine : int, 
    iEndIndex : int, 
    pszBuf : IntPtr, 
    pcchBuf : int
) : int

Parameters

iStartLine
Type: System.Int32
[in] Starting line

iStartIndex
Type: System.Int32
[in] Starting character index within the line (must be <= length of line)

iEndLine
Type: System.Int32
[in] Ending line

iEndIndex
Type: System.Int32
[in] Ending character index within the line (must be <= length of line)

pszBuf
Type: System.IntPtr
[in] Text to insert, if any

pcchBuf
Type: System.Int32%
[in, out] On input, the number of characters to copy. On output, the required size of the buffer. Count is UNICODE characters, not bytes.

Return Value

Type: System.Int32
If the method succeeds, it returns S_OK. If it fails, it returns an error code.

Remarks

COM Signature

From textmgr.idl:

HRESULT IVsTextLayer::CopyLineText(
   [in] long iStartLine,
   [in] CharIndex iStartIndex,
   [in] long iEndLine,
   [in] CharIndex iEndIndex,
   [in] LPWSTR pszBuf,
   [in, out] long * pcchBuf
);

CopyLineText will copy up to cchBuf characters. If the buffer isn't big enough, CopyLineText returns BUFFER_E_DEST_TOO_SMALL and sets * to the required size.

Note

pcchBuf contains a count of UNICODE CHARACTERS, not BYTES.

To get the required size, you can set pszBuf to nulla null reference (Nothing in Visual Basic).

.NET Framework Security

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

通过