获得Image对象的几个方法

这只是我谁时遇到谁时记录的，以后有新的内容会谁时更新


1 .
    Image.win32_new (Display.getDefault(), SWT.ICON, 65545)

Image org.eclipse.swt.graphics.Image.win32_new(Device device, int type, int handle)

Invokes platform specific functionality to allocate a new image.

IMPORTANT: This method is not part of the public API for Image. It is marked public only so that it can be shared within the packages provided by SWT. It is not available on all platforms, and should never be called from application code.

参数：

device the device on which to allocate the color

type the type of the image (SWT.BITMAP or SWT.ICON)

handle the OS handle for the image

返回：

a new image object containing the specified device, type and handle

2 .
    Display.getDefault().getSystemImage(SWT.ICON_WORKING)

Image org.eclipse.swt.widgets.Display.getSystemImage(int id)

Returns the matching standard platform image for the given constant, which should be one of the icon constants specified in class SWT. This image should not be free‘d because it was allocated by the system, not the application. A value of null will be returned either if the supplied constant is not an swt icon constant or if the platform does not define an image that corresponds to the constant.

参数：

id the swt icon constant

返回：

the corresponding image or null

抛出：

SWTException

• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
• ERROR_DEVICE_DISPOSED - if the receiver has been disposed

另请参阅：

SWT.ICON_ERROR

SWT.ICON_INFORMATION

SWT.ICON_QUESTION

SWT.ICON_WARNING

SWT.ICON_WORKING

@since

3.0

3。
   AbstractUIPlugin.imageDescriptorFromPlugin(Application.ID,"icons/types.gif")

ImageDescriptor org.eclipse.ui.plugin.AbstractUIPlugin.imageDescriptorFromPlugin(String pluginId, String imageFilePath)

Creates and returns a new image descriptor for an image file located within the specified plug-in.

This is a convenience method that simply locates the image file in within the plug-in (no image registries are involved). The path is relative to the root of the plug-in, and takes into account files coming from plug-in fragments. The path may include $arg$ elements. However, the path must not have a leading "." or path separator. Clients should use a path like "icons/mysample.gif" rather than "./icons/mysample.gif" or "/icons/mysample.gif".

参数：

pluginId the id of the plug-in containing the image file; null is returned if the plug-in does not exist

imageFilePath the relative path of the image file, relative to the root of the plug-in; the path must be legal

返回：

an image descriptor, or null if no image could be found

注 ：Application.ID：插件ID

4。
static final Image
    UNCHECKED = createImage("images/checkboxenabledoff.gif"), //$NON-NLS-1$
    CHECKED = createImage("images/checkboxenabledon.gif"); //$NON-NLS-1$

private static Image createImage(String name) {
    InputStream stream = CheckBox.class.getResourceAsStream(name);
    Image image = new Image(null, stream);
    try {
        stream.close();
    } catch (IOException ioe) {
    }
    return image;
}

5。
        ImageRegistry reg = JFaceResources.getImageRegistry();
        reg.put(CELL_EDITOR_IMG_DOTS_BUTTON, ImageDescriptor.createFromFile(
                DialogCellEditor.class, "images/dots_button.gif"));