FindWindow() doesn't find my window [C++]

Question

This is not a complex question. I'm having trouble finding the handle that belongs to iTunes. But although iTunes is running in the background, it keeps telling me it can't find the window. So I went on checking whether I miss typed the window name, but spy++ pointed out to me that I was using the correct window name and class name (see below). I'm sure it's a small mistake but I can't seem to find it. Does anyone have an insight? Thanks in advance. ``` HWND hwnd; hwnd = FindWindow((LPCWSTR)"iTunes",(LPCWSTR)"iTunes"); if (hwnd != 0){ cout << "WINDOW FOUND" << endl; } else { cout << "WINDOW NOT FOUND" << endl; cout << hwnd << endl; } ```

Accepted Answer

You are using ANSI strings with what appears to be the Unicode version of `FindWindow`.

Many Win32 functions are actually a pair of function and a macro. For example, `FindWindow` is defined approximately like this:

```
HWND WINAPI FindWindowA(LPCSTR lpClassName, LPCSTR lpWindowName);
HWND WINAPI FindWindowW(LPCWSTR lpClassName, LPCWSTR lpWindowName);

#if (UNICODE)
#  define FindWindow FindWindowW
#else
#  define FindWindow FindWindowA
#endif
```

Try explicitely calling `FindWindowA` or using wide strings like this:

```
HWND hwnd = FindWindow(L"iTunes", L"iTunes");
```

FindWindow() doesn't find my window [C++]

Solution

Problem