FindWindowW和FindWindowA的区别（LPCSTR和 LPCWSTR）

函数签名对比

HWND FindWindowA(
  [in, optional] LPCSTR lpClassName,
  [in, optional] LPCSTR lpWindowName
);

HWND FindWindowW(
  [in, optional] LPCWSTR lpClassName,
  [in, optional] LPCWSTR lpWindowName
);

LPCSTR和 LPCWSTR 的含义与区别

• LPCSTR： Long Pointer to Constant String
• LPCWSTR： Long Pointer to Constant Wide String
• 区别：wide代表字符串大小为2字节。这样可以处理非ASCII字符，在中文环境下建议使用wide。

参考

https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-findwindoww
https://stackoverflow.com/questions/2230758/what-does-lpcwstr-stand-for-and-how-should-it-be-handled-with