Sizer library for Windows based GUI frameworks

Sourceforge project page

Example program:

class Window : public CWnd{
public:
    Window()
    {
        // window initialization omitted here
        ...
        
        // buttons as horizontal row
        HBoxSizer* buttonbox = new HBoxSizer();
        buttonbox->Add(buttonOk);
        buttonbox->Add(buttonCancel);
        
        // stretched textfield
        vbox.Add(textfield, 1);
        // buttons aligned right
        vbox.Add(new HAlignSizer(buttonbox, SIZER_RIGHT));
    }
private:
    void OnSize(UINT type, int cx, int cy)
    {
        // recalculate sizes
        vbox.WmSize(type, cx, cy);
        CWnd::OnSize();
    }

    CEdit textfield;
    CButton buttonOk;
    CButton buttonCancel;
    VBoxSizer vbox;
};