如何删除错误C2593:在VC ++中，“运算符+ ="不明确 [英] how can i remove error C2593: 'operator +=' is ambiguous in VC++

问题描述

我想使用与消息WM_CHAR连接的此方法

此OnChar()是添加到我们的视图类中的事件处理程序

i want to use this method connected with message WM_CHAR

this OnChar() is the event handler addeed to our view Class

void CKeyStrokesView::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags)
{
    // TODO: Add your message handler code here and/or call default
    CKeyStrokesDoc *pDoc = GetDocument();
    ASSERT_VALID(pDoc);
    pDoc->stringdata += nChar;
    Invalidate();
    CView::OnChar(nChar, nRepCnt, nFlags);
}

stringdata是CKeyStrokesDoc.h中声明的CString类型.

等待您的回覆

问候
Sangita

stringdata is of type CString declared in CKeyStrokesDoc.h

Waiting for ur Reply

Regards
Sangita

推荐答案

您将nChar定义为UINT，但是CString()对此没有重载.将行更改为

You define nChar as a UINT but CString() does not have an overload for this. Change the line to

pDoc->stringdata += (TCHAR)nChar;

尝试一下:):

Try it :) :

...
CString cszTemp;
cszTemp.Format(_T("%u;"), nChar);
pcDoc->m_strData += cszTemp;
...

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