Question

我尝试使用快速方法在MFC中设置剪贴板文本，但这不起作用。

executable jar

我在'setClipboardData'上收到'Windows断点'错误。谁知道我可能做错了什么？

编辑：感谢您的评论。 Modfied。现在它失败了：memcopy功能。

void CopyTextToClipBoard( CString strText)
{
    if (OpenClipboard(GetFrame()->GetSafeHwnd()))
    {
        EmptyClipboard() ;  
        SetClipboardData (CF_TEXT, strText.GetBuffer() ) ;
        CloseClipboard () ;
    }
}

编辑：使用这个旧的msdn示例。

void CopyTextToClipBoard( CString strText)
{
if (OpenClipboard(GetFrame()->GetSafeHwnd()))
{
    HGLOBAL hglbCopy;
      LPTSTR  lptstrCopy;
    hglbCopy = GlobalAlloc(GMEM_MOVEABLE, (strText.GetLength() + 1) * sizeof(TCHAR)); 
    if (hglbCopy == NULL) 
    { 
        CloseClipboard(); 
        return ; 
    } 
    memcpy(GlobalLock(hglbCopy), &strText, strText.GetLength() + 1 * sizeof(TCHAR));      
    GlobalUnlock(hglbCopy);  
    SetClipboardData(CF_TEXT, hglbCopy); 
    EmptyClipboard() ;    
    SetClipboardData (CF_TEXT, strText.GetBuffer() ) ;
    CloseClipboard () ;
    }
}

Answer 1

来自SetClipboardData(uFormat,hMem)

的MSDN文档

如果 hMem 参数标识内存对象，则该对象必须具有使用带有 GMEM_MOVEABLE 标志
的函数进行分配

你可以这样做：

     LPTSTR  lptstrCopy; 
     HGLOBAL hglbCopy; 
     unsigned int strSize=strText.GetLength();//get your string lenght
     hglbCopy = GlobalAlloc(GMEM_MOVEABLE, (strSize+1) * sizeof(TCHAR));//allocate the memory object with GMEM_MOVEABLE 
     if (hglbCopy == NULL) 
     { 
          CloseClipboard(); 
          //other error handling
     }

     lptstrCopy = (LPTSTR)GlobalLock(hglbCopy); 
     memcpy(lptstrCopy, strText.GetBuffer(), strSize * sizeof(TCHAR)); //copy the text data
     lptstrCopy[strSize] = (TCHAR) 0;//the null terminator
     GlobalUnlock(hglbCopy); 

    EmptyClipboard() ;  

    SetClipboardData (CF_TEXT,hglbCopy);

    CloseClipboard () ;

Answer 2

SetClipboardData的第二个参数是全局内存块的句柄。

请参阅 http://www.codeproject.com/Articles/2242/Using-the-Clipboard-Part-I-Transferring-Simple-Tex 有详细解释。

Answer 3

This is a working one - unicode.

void CopyToClipboard(HWND owner, const std::wstring &w)
{
    if (OpenClipboard(owner))
    {
        HGLOBAL hgClipBuffer = nullptr;
        std::size_t sizeInWords = w.size() + 1;
        std::size_t sizeInBytes = sizeInWords * sizeof(wchar_t);
        hgClipBuffer = GlobalAlloc(GHND | GMEM_SHARE, sizeInBytes);
        if (!hgClipBuffer)
        {
            CloseClipboard();
            return;
        }
        wchar_t *wgClipBoardBuffer = static_cast<wchar_t*>(GlobalLock(hgClipBuffer));
        wcscpy_s(wgClipBoardBuffer, sizeInWords, w.c_str());
        GlobalUnlock(hgClipBuffer);
        EmptyClipboard();
        SetClipboardData(CF_UNICODETEXT, hgClipBuffer);
        CloseClipboard();
    }
}

(Should be correct, wrote on phone)

将文本复制到MFC中的剪贴板

3 个答案: