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java.lang.Objectcom.trolltech.qt.internal.QSignalEmitterInternal
com.trolltech.qt.QSignalEmitter
com.trolltech.qt.QtJambiObject
com.trolltech.qt.core.QEvent
com.trolltech.qt.gui.QInputEvent
com.trolltech.qt.gui.QKeyEvent
public class QKeyEvent
The QKeyEvent class describes a key event. Key events are sent to the widget with keyboard input focus when keys are pressed or released.
A key event contains a special accept flag that indicates whether the receiver will handle the key event. You should call ignore()
if the key press or release event is not handled by your widget. A key event is propagated up the parent widget chain until a widget accepts it with accept()
or an event filter consumes it. Key events for multimedia keys are ignored by default. You should call accept()
if your widget handles those events.
The QWidget::setEnable() function can be used to enable or disable mouse and keyboard events for a widget.
The event handlers QWidget::keyPressEvent()
and QWidget::keyReleaseEvent()
receive key events.
QFocusEvent
, and QWidget::grabKeyboard()
.
Nested Class Summary |
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Nested classes/interfaces inherited from class com.trolltech.qt.core.QEvent |
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QEvent.Type |
Nested classes/interfaces inherited from class com.trolltech.qt.internal.QSignalEmitterInternal |
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com.trolltech.qt.internal.QSignalEmitterInternal.AbstractSignalInternal |
Field Summary |
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Fields inherited from class com.trolltech.qt.internal.QSignalEmitterInternal |
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currentSender |
Constructor Summary | |
---|---|
QKeyEvent(QEvent.Type type,
int key,
Qt.KeyboardModifiers modifiers)
Constructs a key event object. |
|
QKeyEvent(QEvent.Type type,
int key,
Qt.KeyboardModifiers modifiers,
java.lang.String text)
Constructs a key event object. |
|
QKeyEvent(QEvent.Type type,
int key,
Qt.KeyboardModifiers modifiers,
java.lang.String text,
boolean autorep)
Constructs a key event object. |
|
QKeyEvent(QEvent.Type type,
int key,
Qt.KeyboardModifiers modifiers,
java.lang.String text,
boolean autorep,
char count)
Constructs a key event object. |
Method Summary | |
---|---|
protected int |
autor()
|
protected char |
c()
|
int |
count()
Returns the number of keys involved in this event. |
boolean |
isAutoRepeat()
Returns true if this event comes from an auto-repeating key; returns false if it comes from an initial key press. |
protected int |
k()
|
int |
key()
Returns the code of the key that was pressed or released. |
boolean |
matches(QKeySequence.StandardKey key)
Returns true if the key event matches the given standard key; otherwise returns false. |
int |
nativeModifiers()
Returns the native modifiers of a key event. |
int |
nativeScanCode()
Returns the native scan code of the key event. |
int |
nativeVirtualKey()
Returns the native virtual key, or key sym of the key event. |
protected void |
setAutor(int autor)
|
protected void |
setC(char c)
|
protected void |
setK(int k)
|
protected void |
setTxt(java.lang.String txt)
|
java.lang.String |
text()
Returns the Unicode text that this key generated. |
java.lang.String |
toString()
|
protected java.lang.String |
txt()
|
Methods inherited from class com.trolltech.qt.gui.QInputEvent |
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modifiers, modState, setModState, setModState |
Methods inherited from class com.trolltech.qt.core.QEvent |
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accept, ignore, isAccepted, registerEventType, registerEventType, setAccepted, setT, spontaneous, t, type |
Methods inherited from class com.trolltech.qt.QtJambiObject |
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dispose, disposed, equals, finalize, reassignNativeResources, tr, tr, tr |
Methods inherited from class com.trolltech.qt.QSignalEmitter |
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blockSignals, disconnect, disconnect, signalsBlocked, signalSender, thread |
Methods inherited from class com.trolltech.qt.internal.QSignalEmitterInternal |
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__qt_signalInitialization |
Methods inherited from class java.lang.Object |
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clone, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface com.trolltech.qt.QtJambiInterface |
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disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership |
Constructor Detail |
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public QKeyEvent(QEvent.Type type, int key, Qt.KeyboardModifiers modifiers, java.lang.String text, boolean autorep)
The type parameter must be QEvent::KeyPress
, QEvent::KeyRelease
, or QEvent::ShortcutOverride
.
If key is 0, the event is not a result of a known key; for example, it may be the result of a compose sequence or keyboard macro. The modifiers holds the keyboard modifiers, and the given text is the Unicode text that the key generated. If autorep is true, isAutoRepeat()
will be true. count is the number of keys involved in the event.
public QKeyEvent(QEvent.Type type, int key, Qt.KeyboardModifiers modifiers, java.lang.String text)
The type parameter must be QEvent::KeyPress
, QEvent::KeyRelease
, or QEvent::ShortcutOverride
.
If key is 0, the event is not a result of a known key; for example, it may be the result of a compose sequence or keyboard macro. The modifiers holds the keyboard modifiers, and the given text is the Unicode text that the key generated. If autorep is true, isAutoRepeat()
will be true. count is the number of keys involved in the event.
public QKeyEvent(QEvent.Type type, int key, Qt.KeyboardModifiers modifiers)
The type parameter must be QEvent::KeyPress
, QEvent::KeyRelease
, or QEvent::ShortcutOverride
.
If key is 0, the event is not a result of a known key; for example, it may be the result of a compose sequence or keyboard macro. The modifiers holds the keyboard modifiers, and the given text is the Unicode text that the key generated. If autorep is true, isAutoRepeat()
will be true. count is the number of keys involved in the event.
public QKeyEvent(QEvent.Type type, int key, Qt.KeyboardModifiers modifiers, java.lang.String text, boolean autorep, char count)
The type parameter must be QEvent::KeyPress
, QEvent::KeyRelease
, or QEvent::ShortcutOverride
.
If key is 0, the event is not a result of a known key; for example, it may be the result of a compose sequence or keyboard macro. The modifiers holds the keyboard modifiers, and the given text is the Unicode text that the key generated. If autorep is true, isAutoRepeat()
will be true. count is the number of keys involved in the event.
Method Detail |
---|
public final int count()
text()
is not empty, this is simply the length of the string. Qt::WA_KeyCompression
.
public final boolean isAutoRepeat()
Note that if the event is a multiple-key compressed event that is partly due to auto-repeat, this function could return either true or false indeterminately.
public final int key()
See Qt::Key
for the list of keyboard codes. These codes are independent of the underlying window system. Note that this function does not distinguish between capital and non-capital letters, use the text()
function (returning the Unicode text the key generated) for this purpose.
A value of either 0 or Qt::Key_unknown
means that the event is not the result of a known key; for example, it may be the result of a compose sequence, a keyboard macro, or due to key event compression.
Qt::WA_KeyCompression
.
public final boolean matches(QKeySequence.StandardKey key)
public final int nativeModifiers()
Note: The native modifiers may be 0, even if the key event contains extended information.
public final int nativeScanCode()
Note: The native scan code may be 0, even if the key event contains extended information.
Note: On Mac OS/X, this function is not useful, because there is no way to get the scan code from Carbon or Cocoa. The function always returns 1 (or 0 in the case explained above).
public final int nativeVirtualKey()
Note: The native virtual key may be 0, even if the key event contains extended information.
public final java.lang.String text()
key()
will contain a valid value. Qt::WA_KeyCompression
.
protected final void setK(int k)
protected final int k()
protected final void setTxt(java.lang.String txt)
protected final java.lang.String txt()
protected final void setC(char c)
protected final char c()
protected final void setAutor(int autor)
protected final int autor()
public java.lang.String toString()
toString
in class QInputEvent
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