Package com.sun.jna.platform
Class WindowUtils.NativeWindowUtils
java.lang.Object
com.sun.jna.platform.WindowUtils.NativeWindowUtils
- Enclosing class:
- WindowUtils
Window utilities with differing native implementations.
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Nested Class SummaryNested ClassesModifier and TypeClassDescriptionprotected class
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Constructor SummaryConstructors
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Method SummaryModifier and TypeMethodDescriptionprotected List<DesktopWindow>getAllWindows(boolean onlyVisibleWindows) Requests a list of all currently available Desktop windows.Return the default graphics configuration.protected DimensiongetIconSize(WinDef.HICON hIcon) Detects the size of an icon.protected StringDetects the full file path of the process associated with the specified window handle.protected Windowprotected BufferedImagegetWindowIcon(WinDef.HWND hwnd) Obtains the set icon for the window associated with the specified window handle.protected RectangleRequests the location and size of the window associated with the specified window handle.protected StringgetWindowTitle(WinDef.HWND hwnd) Tries to obtain the Window's title which belongs to the specified window handle.booleanDefault: no support.protected voidsetDoubleBuffered(Component root, boolean buffered) protected voidsetForceHeavyweightPopups(Window w, boolean force) Use this method to ensure heavyweight popups are used in conjunction with a given window.protected voidsetLayersTransparent(Window w, boolean transparent) protected voidOverride this method to provide bitmap masking of the given heavyweight component.voidsetWindowAlpha(Window w, float alpha) Set the overall alpha transparency of the window.protected voidsetWindowMask(Component w, Raster raster) Set the window mask based on the given Raster, which should be treated as a bitmap (zero/nonzero values only).voidsetWindowMask(Component w, Shape mask) Set the window mask based on aShape.voidsetWindowMask(Component w, Icon mask) Set the window mask based on an Icon.voidsetWindowTransparent(Window w, boolean transparent) Set the window to be transparent.protected Rasterprotected Rasterprotected Shapeprotected voidwhenDisplayable(Component w, Runnable action) Execute the given action when the given window becomes displayable.
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Constructor Details- 
NativeWindowUtilspublic NativeWindowUtils()
 
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Method Details- 
getWindow
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whenDisplayableExecute the given action when the given window becomes displayable.
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toRaster
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toRaster
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toShape
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setWindowAlphaSet the overall alpha transparency of the window. An alpha of 1.0 is fully opaque, 0.0 is fully transparent.
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isWindowAlphaSupportedpublic boolean isWindowAlphaSupported()Default: no support.
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getAlphaCompatibleGraphicsConfigurationReturn the default graphics configuration.
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setWindowTransparentSet the window to be transparent. Only explicitly painted pixels will be non-transparent. All pixels will be composited with whatever is under the window using their alpha values.
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setDoubleBuffered
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setLayersTransparent
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setMaskOverride this method to provide bitmap masking of the given heavyweight component.
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setWindowMaskSet the window mask based on the given Raster, which should be treated as a bitmap (zero/nonzero values only). A value ofnullmeans to remove the mask.
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setWindowMaskSet the window mask based on aShape.
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setWindowMaskSet the window mask based on an Icon. All non-transparent pixels will be included in the mask.
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setForceHeavyweightPopupsUse this method to ensure heavyweight popups are used in conjunction with a given window. This prevents the window's alpha setting or mask region from being applied to the popup.
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getWindowIconObtains the set icon for the window associated with the specified window handle.- Parameters:
- hwnd- The concerning window handle.
- Returns:
- Either the window's icon or nullif an error occurred.
- Throws:
- UnsupportedOperationException- Thrown if this method wasn't yet implemented for the current platform.
 
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getIconSizeDetects the size of an icon.- Parameters:
- hIcon- The icon handle type.
- Returns:
- Either the requested icon's dimension or an Dimensioninstance of(0, 0).
- Throws:
- UnsupportedOperationException- Thrown if this method wasn't yet implemented for the current platform.
 
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getAllWindowsRequests a list of all currently available Desktop windows.- Parameters:
- onlyVisibleWindows- Specifies whether only currently visible windows will be considered (- true). That are windows which are not minimized. The- WS_VISIBLEflag will be checked (see: User32.IsWindowVisible(HWND)).
- Returns:
- A list with all windows and some detailed information.
- Throws:
- UnsupportedOperationException- Thrown if this method wasn't yet implemented for the current platform.
 
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getWindowTitleTries to obtain the Window's title which belongs to the specified window handle.- Parameters:
- hwnd- The concerning window handle.
- Returns:
- Either the title or an empty string of no title was found or an error occurred.
- Throws:
- UnsupportedOperationException- Thrown if this method wasn't yet implemented for the
 
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getProcessFilePathDetects the full file path of the process associated with the specified window handle.- Parameters:
- hwnd- The concerning window handle for which the PE file path is required.
- Returns:
- The full file path of the PE file that is associated with the specified window handle.
- Throws:
- UnsupportedOperationException- Thrown if this method wasn't yet implemented for the
 
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getWindowLocationAndSizeRequests the location and size of the window associated with the specified window handle.- Parameters:
- hwnd- The concerning window handle.
- Returns:
- The location and size of the window.
- Throws:
- UnsupportedOperationException- Thrown if this method wasn't yet implemented for the
 
 
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