| fpdfsdk/pwl is a Widget Library for AcroForms. | |
| CPWL_Wnd is the base class that widget classes extend. The derived widget | |
| classes are controllers for each widget. The hierarchy is: | |
| * CPWL_Wnd | |
| * CPWL_Button | |
| * CPWL_CheckBox | |
| * CPWL_PushButton | |
| * CPWL_RadioButton | |
| * CPWL_Caret | |
| * CPWL_EditCtrl | |
| * CPWL_Edit | |
| * CPWL_Icon | |
| * CPWL_ListBox | |
| * CPWL_CBListBox (combo box) | |
| * CPWL_ScrollBar | |
| Widgets are rendered to Appearance Streams, with the case all centralized in | |
| CPWL_AppStream. | |