Set desktop Flutter to run in maximized size at startup

Question

How can one set the initial size of the Flutter desktop app to maximized in desktop platforms (Windows, macOS, Linux)?

I know there are window size plugins and we can set size manually, but is there any simple way, like for example Window.startupSize=WindowSize.Maximized

There are old issues in Flutter community (https://github.com/flutter/flutter/issues/39556) but I want to know what is latest update?

Answer 1

For future reference to anyone still facing this issue you can locate this code in the file:

windows/runner/win32_window.cpp

bool Win32Window::Show() {
   return ShowWindow(window_handle_, SW_SHOWMAXIMIZED);
}

its in line 152 and you can replace SW_SHOWNORMAL with SW_SHOWMAXIMIZED