刚开始学mfc,我用vs2005建一个单文档应用程序,只重写了OnDraw函数
void CEx03aView::OnDraw(CDC* pDC)
{
pDC->TextOutW(0,0,"My first MFC!");
pDC->SelectStockObject(GRAY_BRUSH);
pDC->Ellipse(CRect(0,20,100,120)); // TODO: 在此处为本机数据添加绘制代码
}
得到的报错是
c:\vcppnet\ex03a\ex03a\ex03aview.cpp(50) : error C2664: 'BOOL CDC::TextOutW(int,int,const CString &)' : cannot convert parameter 3 from 'const char [14]' to 'const CString &'
Reason: cannot convert from 'const char [14]' to 'const CString'
Constructor for class 'ATL::CStringT<BaseType,StringTraits>' is declared 'explicit'
with
[
BaseType=wchar_t,
StringTraits=StrTraitMFC_DLL<wchar_t>
]
高手指教,在线等,谢谢!
void CEx03aView::OnDraw(CDC* pDC)
{
pDC->TextOutW(0,0,"My first MFC!");
pDC->SelectStockObject(GRAY_BRUSH);
pDC->Ellipse(CRect(0,20,100,120)); // TODO: 在此处为本机数据添加绘制代码
}
得到的报错是
c:\vcppnet\ex03a\ex03a\ex03aview.cpp(50) : error C2664: 'BOOL CDC::TextOutW(int,int,const CString &)' : cannot convert parameter 3 from 'const char [14]' to 'const CString &'
Reason: cannot convert from 'const char [14]' to 'const CString'
Constructor for class 'ATL::CStringT<BaseType,StringTraits>' is declared 'explicit'
with
[
BaseType=wchar_t,
StringTraits=StrTraitMFC_DLL<wchar_t>
]
高手指教,在线等,谢谢!
pDC->TextOutW(0,0,str);再试试!~~
或者pDC->TextOutW(0,0,_T("My first MFC!"));
with
[
BaseType=wchar_t,
StringTraits=StrTraitMFC_DLL<wchar_t>
]
Constructor for class 'ATL::CStringT<BaseType,StringTraits>' is declared 'explicit'
with
[
BaseType=wchar_t,
StringTraits=StrTraitMFC_DLL<wchar_t>
]错误又变成上面那样