Thread: GetWindowText Wide Character Issue

Hello,

I am enumerating windows on windows. I get the HWND in enumerate function.

If I use wide character method, I see console output only shows 3 windows titles:

Code:

	TCHAR* buff;
	buff = new TCHAR[length + 1];
	memset(buff, 0, (length + 1) * sizeof(TCHAR));
	GetWindowText(hWnd, buff, length + 1);
	tstring winTitle = tstring(buff);
	delete[] buff;
	const wchar_t* wTitle = winTitle .c_str();
	wcout << TEXT("wTitle: ") << wTitle << std::endl;

But if use simple string method, I see console outputs 18 windows titles:

Code:

	char buff[1026];
	int res = GetWindowTextA(hWnd, buff, 1026);
	printf(buff)

What might be the issue with GetWindowText so that it prevents other 15 windows titles to be printed? How can I trace the issue with GetWindowText and wide characters?

This is C++ console application in VS Community 2017.

Cheers

This gives me a long list of windows titles.

Code:

BOOL CALLBACK EnumWindows(HWND hWnd, LPARAM /* lParam */)
{
  const int BUF_SIZE = 1024;
  std::wstring buffer(BUF_SIZE, L' ');
  int len = GetWindowTextW(hWnd, &buffer[0], BUF_SIZE);
  if (len > 0)
  {
    buffer.resize(len);
    std::wcout << L"Window text: " << buffer << "\n";
  }

  return TRUE;
}

Thank you very much for your help.

This works better. But somehow some of the Google Chrome windows are not retrieved by your code. What might be the issue?

Especially if Google Chrome windows are minimized, the Window text: is not got.

Cheers

Some windows don't have a text, so they don't get printed.
A program doesn't have to set a text for the window