SoXtInputFocus Class Reference
[Xt]
Reports input focus change events. More...
#include <Inventor/Xt/devices/SoXtInputFocus.h>
Public Member Functions | |
| SoXtInputFocus (EventMask mask=SO_XT_ALL_FOCUS_EVENTS) | |
| ~SoXtInputFocus () | |
| virtual void | enable (SoWidget w, XtEventHandler f, XtPointer data, Window win=(Window) NULL) |
| virtual void | disable (SoWidget w, XtEventHandler f, XtPointer data) |
| virtual const SoEvent * | translateEvent (XAnyEvent *xevent) |
Detailed Description
Reports input focus change events.
This class reports input focus change events (i.e. when the cursor crosses into or out of the window). There are no input focus event in Open Inventor, so this always returns NULL when asked to translate events. When this class is registered on a render area, the render area will receive X input focus change events. (This class is extensively employed by the viewer classes.)
SEE ALSO
Constructor & Destructor Documentation
| SoXtInputFocus::SoXtInputFocus | ( | EventMask | mask = SO_XT_ALL_FOCUS_EVENTS |
) |
Constructor.
To the constructor, pass which input focus events you are interested in as a bitwise OR of the following values:
EnterWindowMask - Input focus entered the window.
LeaveWindowMask - Input focus left the window
Or simply pass the defined value SO_XT_ALL_FOCUS_EVENTS for all input focus events.
| SoXtInputFocus::~SoXtInputFocus | ( | ) | [inline] |
Destructor.
Member Function Documentation
| virtual void SoXtInputFocus::disable | ( | SoWidget | w, | |
| XtEventHandler | f, | |||
| XtPointer | data | |||
| ) | [virtual] |
Disables the device for the passed widget.
Implements SoXtDevice.
| virtual void SoXtInputFocus::enable | ( | SoWidget | w, | |
| XtEventHandler | f, | |||
| XtPointer | data, | |||
| Window | win = (Window) NULL | |||
| ) | [virtual] |
Enables the device for the passed widget.
When enabled, the callback function f will be invoked when events occur in the window. data is the clientData which will be passed.
Implements SoXtDevice.
| virtual const SoEvent* SoXtInputFocus::translateEvent | ( | XAnyEvent * | xevent | ) | [virtual] |
Attempts to convert the passed event into an SoEvent.
Returns a pointer to an internal SoEvent object owned by the class. Do not delete this object. If the message was not generated by this device, then NULL is returned.
Implements SoXtDevice.
The documentation for this class was generated from the following file:
- Inventor/Xt/devices/SoXtInputFocus.h