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General Software Discussion / Re: How to edit a titlebar from a dll?
« Last post by erpens on February 06, 2026, 01:43 AM »A DLL cannot directly edit a window’s title bar because the title bar is owned and controlled by the main application window created by the executable, not by the DLL. To change the title text from a DLL, the DLL must first obtain the window handle (HWND) of the target window, either by receiving it from the main application (recommended) or by locating it using Windows API functions such as `GetForegroundWindow` or `FindWindow`. Once the DLL has the correct window handle, it can call the Windows API function `SetWindowText` to update the title bar. In short, a DLL can modify the title bar only after it gets access to the window handle and uses the appropriate Windows API call.