int GetNumLegendItems (int panelHandle, int controlID, int *numItems);
Returns the number of visible items in the graph legend.
The value returned by this function is equivalent to the number of plots in the graph which have the ATTR_PLOT_LG_VISIBLE attribute enabled.
| Input | ||
| Name | Type | Description |
| panelHandle | integer | Specifier for a particular panel that is currently in memory. You obtain this handle from LoadPanel, NewPanel, or DuplicatePanel. |
| controlID | integer | The defined constant, located in the .uir header file, that you assigned to the control in the User Interface Editor, or the ID returned by NewCtrl or DuplicateCtrl. |
| Output | ||
| Name | Type | Description |
| numItems | integer (passed by reference) | The number of visible items in the graph legend. |
| Name | Type | Description | ||||
| status | integer | Return value indicating whether the function was successful. A negative number indicates that an error occurred.
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