c++ - 错误 C2664 : 'callToPrint' : cannot convert parameter 1 from 'std::wstring' to 'LPTSTR'

Question

我按如下方式将窄字符串转换为宽字符串:

string nameOfPrinter;
getline( cin , nameOfPrinter );
wstring WprinterName;
int number = MultiByteToWideChar( CP_UTF8 , 0 , nameOfPrinter.c_str() , nameOfPrinter.size() , &WprinterName , 0 );

// then i make a call to the function whose prototype is callToPrint( LPTSTR , LPVOID , DWORD , string )

// the calling statement is :
callToPrint( WprinterName , -----all other arguments-----,);

// But this call produces the following error error C2664: 'callToPrint' : cannot convert parameter 1 from 'std::wstring' to 'LPTSTR'

为什么会这样？请告诉我如何解决它？

Answer 1

您还需要在此处使用 .c_str()。

此外，我会使用

将打印机名称直接读入 WprinterName

getline(wcin, Wprintername);