I am use next type of strings: LPCSTR, TCHAR, String i want to convert: 1) from TCHAR to LPCSTR 2) from String to char I convert from TCHAR to LPCSTR by that code:

RunPath = TEXT("C:\\1");
LPCSTR Path = (LPCSTR)RunPath;
From String to char i convert by that code:
SaveFileDialog^ saveFileDialog1 = gcnew SaveFileDialog;
saveFileDialog1->Title = "?????????? ?????-????????";
saveFileDialog1->Filter = "bck files (*.bck)|*.bck";
saveFileDialog1->RestoreDirectory = true;
pin_ptr<const wchar_t> wch = TEXT("");
if ( saveFileDialog1->ShowDialog() == System::Windows::Forms::DialogResult::OK ) {  
    wch = PtrToStringChars(saveFileDialog1->FileName);
} else return;
ofstream os(wch, ios::binary);

My problem is that when i set "Configuration Properties -> General Character Set in "Use Multi-Byte Character Set" the first part of code work correctly. But the second part of code return error C2440. When i set "Configuration Properties -> General Character Set in "Use Unicode" the second part of code work correctly. But the first part of code return the only first character from TCHAR to LPCSTR.