# ScrollBar_GetAttribute

int ScrollBar_GetAttribute (int panelHandle, int scrollBarID, int scrollBarAttribute, int *attributeValue);

## Purpose

Obtains the value of a scroll bar attribute from the selected panel and scroll bar.

## Parameters

Input
Name | Type | Description
panelHandle | integer | The specifier for a particular panel that is currently in memory. This handle will have been returned by the LoadPanel, NewPanel, or DuplicatePanel function.
scrollBarID | integer | The defined constant (located in the UIR header file) which was assigned to the graph control in the User Interface Editor, or the ID returned by the ScrollBar_Create or ScrollBar_ConvertFromGraph functions.
scrollBarAttribute | integer | The scroll bar attribute value to obtain. In the function panel, when you click the control or press <Enter>, <Spacebar>, or <Ctrl-down arrow>, a dialog box appears containing a hierarchical list of the available attributes. Attributes whose values cannot be obtained are dimmed. Help text is shown for each attribute. To select an attribute, double-click it or select it and then press <Enter>. If the attribute shown in this ring control has named constants as valid values, you can open a list of them by moving to the Attribute Value control and pressing <Enter>. The Attribute Values dialog box displays the values and value help for the constants.
Output
Name | Type | Description
attributeValue | integer * | The value of the specified scroll bar attribute. If the attribute shown in this control has named constants as valid values, you can open a list of them by pressing <Enter>. The Attribute Values dialog box displays the values and value help for the constants.

## Return Value

Name | Type | Description
status | integer | Return value indicating whether the function was successful. A negative number indicates that an error occurred.
Return Values: | 0 | Success
| –1 | General error, probably out of memory.
| –2 | Control ID is not a graph
| –3 | Bad attribute value
| –4 | Bad attribute