代码说明： Gets device information about a particular capability from the specified device. For example: DriverType - Device technology type DisplayDriver - The device driver version LineCapabilities - The line capabilities of the device PixelDiagonal - Diagonal width of the device pixel used for line drawing PixelspInchH - The number of horizontal pixels per logical Inch PixelspInchV - The number of vertical pixels per logical Inch PolygonalCapabilities - The polygonal capabilities of the device RasterCapabilities - The raster capabilities of the device

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