![]() |
Graph Events | ![]() ![]() ![]() |
Function Group |
Declared in: NiGraphEvents.h |
Overview
The Measurement Studio graph control generates a variety of events in response to user input or changes in properties that are bound to a DataSocket source.
Complete the following steps to add an event handler for a particular event generated by the graph control.
1. Edit a dialog resource and add a Measurement Studio graph control to the dialog.
2. Right-click on the graph control and select Events.
3. Select the appropriate event to handle and select Add and Edit. By default, this creates a new member function for which the name has the form shown below.
On[eventName][objectIdSuffix]
To help you find the appropriate online help, the components of the member function name are described below.
- eventName is the event name.
- objectIdSuffix is the last part of the ID assigned to the control.
For example, if you have a graph control for which the ID is IDC_CWGRAPH1 and you want to add a handler for the Click event, the default member function name created by the ClassWizard is OnClickCwgraph1.
4. Click OK to add and edit the new event handler. Notice that the prototype of the member function matches the corresponding event listed below. You can select this link to get additional information regarding the event.
Note: Various graph events pass COM VARIANT data types as parameters to the event handler. Measurement Studio includes the CNiVariant class, which provides a convenient interface for managing these VARIANT data types. Refer to the documentation for each event for further information.
Functions
![]() |
void | OnAnnotationChange( long FAR* AnnotationIndex, long FAR* AnnotationPart BOOL FAR* bTracking ) |
Generated when you reposition an annotation with the mouse. |
![]() |
void | OnAnnotationMouseDown( short FAR* Button, short FAR* Shift, short FAR* AnnotationIndex, long FAR* AnnotationPart ) |
Generated when you click the mouse on an annotation. |
![]() |
void | OnAnnotationMouseMove( short FAR* Button, short FAR* Shift, short FAR* AnnotationIndex, long FAR* AnnotationPart ) |
Generated when you move the mouse over an annotation. |
![]() |
void | OnAnnotationMouseUp( short FAR* Button, short FAR* Shift, short FAR* AnnotationIndex, long FAR* AnnotationPart ) |
Generated when you release the mouse over an annotation. |
![]() |
void | OnClick() |
Generated when you click the mouse on the control. |
![]() |
void | OnCursorChange( long FAR* CursorIndex, VARIANT FAR* XPos, VARIANT FAR* YPos, BOOL FAR* bTracking ) |
Generated when you reposition a cursor with the mouse. |
![]() |
void | OnCursorMouseDown( short FAR* Button, short FAR* Shift, VARIANT FAR* XPos, VARIANT FAR* YPos, short FAR* CursorIndex, long FAR* CursorPart ) |
Generated when you click the mouse on a cursor. |
![]() |
void | OnCursorMouseMove( short FAR* Button, short FAR* Shift, VARIANT FAR* XPos, VARIANT FAR* YPos, short FAR* CursorIndex, long FAR* CursorPart ) |
Generated when you move the mouse over a cursor. |
![]() |
void | OnCursorMouseUp( short FAR* Button, short FAR* Shift, VARIANT FAR* XPos, VARIANT FAR* YPos, short FAR* CursorIndex, long FAR* CursorPart ) |
Generated when you release the mouse over a cursor. |
![]() |
void | OnCWBindingDataUpdated( short Index, LPDISPATCH Data, BOOL FAR* Ignore ) |
Generated when the binding data is updated. |
![]() |
void | OnCWBindingStatusUpdated( short Index, long Status, long Error, LPCTSTR Message ) |
Generated when the status of the binding connection changes. |
![]() |
void | Generated when you double-click the mouse on the control. | |
![]() |
void | OnKeyDown( short FAR* KeyCode, short Shift ) |
Generated when you press a key while the control has the input focus. |
![]() |
void | OnKeyPress( short FAR* KeyAscii ) |
Generated when a KeyDown message generates a key while a control is active. |
![]() |
void | OnKeyUp( short FAR* KeyCode, short Shift ) |
Generated when you release a key while the control has the input focus. |
![]() |
void | OnMouseDown( short Button, short Shift, long x, long y ) |
Generated when you click the mouse on the control. |
![]() |
void | OnMouseMove( short Button, short Shift, long x, long y ) |
Generated when you move the mouse over the control. |
![]() |
void | OnMouseUp( short Button, short Shift, long x, long y ) |
Generated when you release the mouse on the control. |
![]() |
void | OnPlotAreaMouseDown( short FAR* Button, short FAR* Shift, VARIANT FAR* XPos, VARIANT FAR* YPos ) |
Generated when you click the mouse on the plot area. |
![]() |
void | OnPlotAreaMouseMove( short FAR* Button, short FAR* Shift, VARIANT FAR* XPos, VARIANT FAR* YPos ) |
Generated when you move the mouse over the plot area. |
![]() |
void | OnPlotAreaMouseUp( short FAR* Button, short FAR* Shift, VARIANT FAR* XPos, VARIANT FAR* YPos ) |
Generated when you release the mouse over the plot area. |
![]() |
void | OnPlotMouseDown( short FAR* Button, short FAR* Shift, VARIANT FAR* XData, VARIANT FAR* YData, short FAR* PlotIndex, long FAR* PointIndex ) |
Generated when you click the mouse on a plot. |
![]() |
void | OnPlotMouseMove( short FAR* Button, short FAR* Shift, VARIANT FAR* XData, VARIANT FAR* YData, short FAR* PlotIndex, long FAR* PointIndex ) |
Generated when you move the mouse over a plot. |
![]() |
void | OnPlotMouseUp( short FAR* Button, short FAR* Shift, VARIANT FAR* XData, VARIANT FAR* YData, short FAR* PlotIndex, long FAR* PointIndex ) |
Generated when you release the mouse over a plot. |
![]() |
void | Generated when the ready state changes. |