CWKnob
CWKnob is the top-level object for the Knob control.
Properties
| ActivePointer | Specifies the CWPointer object of the active pointer. |
| ArcEnd | Specifies the end angle, in degrees, for the knob axis arc. |
| ArcStart | Specifies the start angle, in degrees, for the knob axis arc. |
| Axis | Returns the CWAxis object for this control. |
| BackColor | Specifies the background color of the control. |
| BackgroundImage | Specifies an image to be used for the background of the control. |
| Caption | Specifies the text that appears in the control. |
| CaptionColor | Specifies the color of the caption. |
| CWBindings | Returns a collection of CWBinding objects. |
| Enabled | Specifies if the control responds to user input. |
| Font | Specifies the font for the caption and axis labels. |
| ForeColor | Specifies the foreground color in the CWSlide or CWKnob control. |
| ImmediateUpdates | Specifies if the control draws new data as soon as it is available or if the form refreshes the control when it draws other controls. |
| IncDecValue | Specifies the amount that the control is changed when the user clicks the increment or decrement buttons, or uses the keyboard to increment or decrement the control. |
| KeyboardMode | Specifies how the control handles keyboard input from the user. |
| Pointers | Returns a collection of Pointer objects. |
| ReadyState | Returns the ready state. |
| ScaleStyleValuePairsOnly | Specifies if only the value pairs are displayed on the axis. |
| ShowFocusMode | Specifies how the control indicates that it has the focus. |
| Statistics | Returns the Statistics object for this control. |
| Value | Specifies the value of the active pointer. |
| ValuePairIndex | Specifies the index of the value pair selected by the active pointer. |
| Windowless | Specifies if the control has a window. |
Methods
| AboutBox | Displays the About Box for the control. |
| ControlImage | Returns an image of the entire control. |
| ExportStyle | Exports the style of the Measurement Studio control to a file. |
| Images | Provides access to the CWImage objects in the CWKnob or CWSlide control. |
| ImportStyle | Imports a previously exported style. |
| Refresh | Redraws the knob control. |
| SetBuiltinStyle | Sets many properties of the control to represent the new style specified. |
Events
| Click | Generates when you click the mouse on the control. |
| CWBindingDataUpdated | Generated when the binding data is updated. |
| CWBindingStatusUpdated | Generated when the status of the binding connection changes. |
| DblClick | Generates when you double-click the mouse on the control. |
| KeyDown, KeyUp | KeyUp generates when you release a key while the control has the input focus.
KeyDown generates when you press a key while the control has the input focus. |
| KeyPress | Generated when the control has focus and you press a key. |
| MouseDown, MouseMove, MouseUp | MouseDown generates when you click the mouse on the control. MouseMove generates when you move the mouse over the control. MouseUp generates when you release the mouse on the control. |
| PointerValueChanged | Generated as the value of a pointer changes from the user interface or the program. |
| PointerValueCommitted | Generated when the value of a pointer has stopped changing. |
| ReadyStateChange | Generated when the ready state changes. |