Small Window Support

Window Size restriction

For application windows smaller than 41x36px, the Windows O/S will not apply the 'Aero Snap' when a window is dragged, to or from, a maximized state.  To avoid unexpected behavior, by default, OpenFin windows are limited to a minimum size of 41x36px.

Enabling small windows

To allow windows to be sized 41x36px OpenFin provides the `smallWindow` parameter that can be added to the window options when creating a new window.  For example:

async function createWindow() { 
    const winOption = { 
        name:'child', 
        defaultWidth: 300, 
        defaultHeight: 300, 
        url: 'https://cdn.openfin.co/docs/javascript/stable/tutorial-Window.create.html', 
        frame: false, 
        smallWindow: true,
        autoShow: true 
    }; 

    return await fin.Window.create(winOption); 
} 

createWindow().then(() => console.log('Window is created')).catch(err => console.log(err));

Caveats

For windows with the `smallWindow` parameter applied, the Windows O/S will not apply the 'Aero Snap' when a window is dragged, to or from, a maximized state. 

References

More information regarding Window API creation options can be found here, feel free to reach out with any other questions you may have.