org.eclipse.swt.widgets.Canvas.checkWidget()方法的使用及代码示例

x33g5p2x  于2022-01-18 转载在 其他  
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本文整理了Java中org.eclipse.swt.widgets.Canvas.checkWidget()方法的一些代码示例，展示了Canvas.checkWidget()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Canvas.checkWidget()方法的具体详情如下：
包路径：org.eclipse.swt.widgets.Canvas
类名称：Canvas
方法名：checkWidget

Canvas.checkWidget介绍

暂无

代码示例

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.ppc

/**
 * Returns the IME.
 *
 * @return the IME
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 *
 * @since 3.4
 */
public IME getIME () {
  checkWidget ();
  return ime;
}

代码示例来源：origin: org.eclipse.swt.cocoa.macosx/x86_64

/**
 * Returns the IME.
 *
 * @return the IME
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 * 
 * @since 3.4
 */
public IME getIME () {
  checkWidget();
  return ime;
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.aix.ppc

/**
 * Returns the IME.
 *
 * @return the IME
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 *
 * @since 3.4
 */
public IME getIME () {
  checkWidget ();
  return ime;
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.s390x

/**
 * Returns the IME.
 *
 * @return the IME
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 *
 * @since 3.4
 */
public IME getIME () {
  checkWidget ();
  return ime;
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

/**
 * Returns the IME.
 *
 * @return the IME
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 *
 * @since 3.4
 */
public IME getIME () {
  checkWidget ();
  return ime;
}

代码示例来源：origin: org.eclipse.swt.cocoa.macosx/x86_64

/**
 * Returns the caret.
 * <p>
 * The caret for the control is automatically hidden
 * and shown when the control is painted or resized,
 * when focus is gained or lost and when an the control
 * is scrolled.  To avoid drawing on top of the caret,
 * the programmer must hide and show the caret when
 * drawing in the window any other time.
 * </p>
 *
 * @return the caret for the receiver, may be null
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 */
public Caret getCaret () {
  checkWidget();
  return caret;
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.aix.ppc

/**
 * Returns the caret.
 * <p>
 * The caret for the control is automatically hidden
 * and shown when the control is painted or resized,
 * when focus is gained or lost and when an the control
 * is scrolled.  To avoid drawing on top of the caret,
 * the programmer must hide and show the caret when
 * drawing in the window any other time.
 * </p>
 *
 * @return the caret for the receiver, may be null
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 */
public Caret getCaret () {
  checkWidget();
  return caret;
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

/**
 * Returns the caret.
 * <p>
 * The caret for the control is automatically hidden
 * and shown when the control is painted or resized,
 * when focus is gained or lost and when an the control
 * is scrolled.  To avoid drawing on top of the caret,
 * the programmer must hide and show the caret when
 * drawing in the window any other time.
 * </p>
 *
 * @return the caret for the receiver, may be null
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 */
public Caret getCaret () {
  checkWidget ();
  return caret;
}

代码示例来源：origin: org.eclipse.swt.cocoa.macosx/x86_64

public void setFont (Font font) {
  checkWidget ();
  if (caret != null) caret.setFont (font);
  super.setFont (font);
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.ppc

@Override
public void setFont (Font font) {
  checkWidget();
  if (caret != null) caret.setFont (font);
  super.setFont (font);
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.aix.ppc

@Override
public void setFont (Font font) {
  checkWidget();
  if (caret != null) caret.setFont (font);
  super.setFont (font);
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

@Override
public void setFont (Font font) {
  checkWidget ();
  if (caret != null) caret.setFont (font);
  super.setFont (font);
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.s390x

@Override
public void setFont (Font font) {
  checkWidget();
  if (caret != null) caret.setFont (font);
  super.setFont (font);
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

/**
 * Sets the receiver's IME.
 *
 * @param ime the new IME for the receiver, may be null
 *
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_INVALID_ARGUMENT - if the IME has been disposed</li>
 * </ul>
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 *
 * @since 3.4
 */
public void setIME (IME ime) {
  checkWidget ();
  if (ime != null && ime.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
  this.ime = ime;
}

代码示例来源：origin: org.eclipse.swt.cocoa.macosx/x86_64

/**
 * Sets the receiver's IME.
 * 
 * @param ime the new IME for the receiver, may be null
 *
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_INVALID_ARGUMENT - if the IME has been disposed</li>
 * </ul>
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 * 
 * @since 3.4
 */
public void setIME (IME ime) {
  checkWidget ();
  if (ime != null && ime.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
  this.ime = ime;
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.ppc

/**
 * Sets the receiver's IME.
 *
 * @param ime the new IME for the receiver, may be null
 *
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_INVALID_ARGUMENT - if the IME has been disposed</li>
 * </ul>
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 *
 * @since 3.4
 */
public void setIME (IME ime) {
  checkWidget ();
  if (ime != null && ime.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
  this.ime = ime;
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.s390x

/**
 * Sets the receiver's IME.
 *
 * @param ime the new IME for the receiver, may be null
 *
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_INVALID_ARGUMENT - if the IME has been disposed</li>
 * </ul>
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 *
 * @since 3.4
 */
public void setIME (IME ime) {
  checkWidget ();
  if (ime != null && ime.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
  this.ime = ime;
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.aix.ppc

/**
 * Sets the receiver's IME.
 *
 * @param ime the new IME for the receiver, may be null
 *
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_INVALID_ARGUMENT - if the IME has been disposed</li>
 * </ul>
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 *
 * @since 3.4
 */
public void setIME (IME ime) {
  checkWidget ();
  if (ime != null && ime.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
  this.ime = ime;
}

代码示例来源：origin: org.eclipse.rap/org.eclipse.rap.rwt

/**
 * Removes the listener from the collection of listeners who will
 * be notified when the receiver needs to be painted.
 *
 * @param listener the listener which should no longer be notified
 *
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
 * </ul>
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 *
 * @see PaintListener
 * @see #addPaintListener
 * @since 1.3
 */
public void removePaintListener( PaintListener listener ) {
 checkWidget();
 if( listener == null ) {
  error( SWT.ERROR_NULL_ARGUMENT );
 }
 removeListener( SWT.Paint, listener );
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

void clearArea (int x, int y, int width, int height) {
  checkWidget ();
  if (OS.IsWindowVisible (handle)) {
    RECT rect = new RECT ();
    OS.SetRect (rect, x, y, x + width, y + height);
    int /*long*/ hDC = OS.GetDCEx (handle, 0, OS.DCX_CACHE | OS.DCX_CLIPCHILDREN | OS.DCX_CLIPSIBLINGS);
    drawBackground (hDC, rect);
    OS.ReleaseDC (handle, hDC);
  }
}

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