GEOS SDK TechDocs
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5 The GenViewControl
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5.2 Notification Received
In addition to the normal instance data of
GenControlClass
,
GenViewControlClass
has four other fields. These are shown in GenViewControl Instance Data
along with their default values.
Code Display 9-7 GenViewControl Instance Data
/* The GenViewControl has four instance fields in addition to those inherited * from GenControlClass. You may wish to set these to determine the controller's * initial configuration, but typically you will not need to. */
/* Constants used for scaling boundaries */ #define DEFAULT_ZOOM_MINIMUM 25 #define DEFAULT_ZOOM_MAZIMUM 200
/* GVCI_minZoom determines the minimum percentage zoom allowed. */ /* GVCI_maxZoom indicates the maximum zoom percentage allowed. */ /* GVCI_scale indicates the current view scale factor setting. */ /* GVCI_attrs indicates which attributes the controller should * implement on startup. */
@instance word GVCI_minZoom = DEFAULT_ZOOM_MINIMUM;
@instance word GVCI_maxZoom = DEFAULT_ZOOM_MAXIMUM;
@instance word GVCI_scale = 100;
@instance GenViewControlAttrs GVCI_attrs = (GVCA_SHOW_HORIZONTAL |
GVCA_SHOW_VERTICAL |
GVCA_APPLY_TO_ALL);
/* Possible GenViewControlAttrs flags: * GVCA_ADJUST_ASPECT_RATIO GVCA_APPLY_TO_ALL * GVCA_SHOW_HORIZONTAL GVCA_SHOW_VERTICAL */
@default GI_attrs = (@default | GA_KBD_SEARCH_PATH); /* This adds the view controller to the default * keyboard accelerator search path. */
GEOS SDK TechDocs
|
| 5 The GenViewControl
| 5.2 Notification Received