Reports input focus change events. More...
#include <Inventor/Xt/devices/SoXtInputFocus.h>
Public Member Functions | |
SoXtInputFocus (EventMask mask=SO_XT_ALL_FOCUS_EVENTS) | |
Constructor. | |
~SoXtInputFocus () | |
Destructor. | |
virtual void | enable (SoWidget w, XtEventHandler f, XtPointer data, Window win=(Window) NULL) |
Enables the device for the passed widget. | |
virtual void | disable (SoWidget w, XtEventHandler f, XtPointer data) |
Disables the device for the passed widget. | |
virtual const SoEvent * | translateEvent (XAnyEvent *xevent) |
Attempts to convert the passed event into an SoEvent. | |
Public Member Functions inherited from SoXtDevice | |
void | setWindowSize (const SbVec2s &s) |
Sets the size of the window this device is registered for. | |
const SbVec2s & | getWindowSize () const |
Gets the size of the window this device is registered for. | |
virtual | ~SoXtDevice () |
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.)
Definition at line 86 of file SoXtInputFocus.h.
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.
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inline |
Destructor.
Definition at line 103 of file SoXtInputFocus.h.
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virtual |
Disables the device for the passed widget.
Implements SoXtDevice.
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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.
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.