EntityQ1096034· pop 6· linked from 88 articlesXFormsSign in to savewidget toolkit for the X Window SystemConnectionsOpenGLEntityBeOSEntityQ201904EntityGTKEntityGNU Lesser General Public LicenseEntityFOX toolkitEntityoperating systemEntityMicrosoft WindowsEntityQ15777EntityPHPEntityQ2005EntityPythonEntityJavaEntityAndroidEntityQ2407EntityQ11368Entityfree softwareEntitymacOSEntityQ42478EntityQ81571EntityCategoriesApplication programming interfacesFree computer libraries