c++在FindWindow中将字符串转换为LPCWSTR

Question

我正在尝试从 txt 文件中读取窗口标题

我将使用 GetTitleWidnow 通过字符串获取窗口标题

我试过了，但它没有在应用程序中显示菜单

   ostringstream GetTitleWidnow;
    GetTitleWidnow << "MainSvrt on port 51752";
    LPCWSTR LMainSvrtTitle;
std::string SMainSvrtTitle = GetTitleWidnow.str();
LMainSvrtTitle = (LPCWSTR)SMainSvrtTitle.c_str();


HWND hWnd = FindWindow(NULL,LMainSvrtTitle);
HMENU hCurrent = GetMenu(hWnd);
HMENU hNew = CreateMenu();
AppendMenu(hCurrent, MF_STRING | MF_POPUP, (unsigned int)hNew, TEXT("Menu"));
AppendMenu(hNew, MF_STRING, MYMENU_Reload, TEXT("Reload Config"));
AppendMenu(hNew, MF_STRING, MYMENU_Credits, TEXT("Credits"));
DrawMenuBar(hWnd); 

但是当我尝试

 HWND hWnd = FindWindow(NULL,TEXT("MainSvrt on port 51752"));

我让它工作正常，它在应用程序中显示菜单

Answer 1

您应该使用 Microsoft 的 CString 自动在宽字符和窄字符之间进行转换，或者使用 MultiByteToWideChar 函数。