MemoryStream WLabel(int hDpi, int Vdpi, int imType)
WLabel returns a MemoryStream object containing the graphics image of the current label.
If imType is 0 the image is greated as a Portable Netwrok Graphic image with a resolution specified by the values of hDpi (horizontal dpi) and vDpi (vertical dpi).
If imType is 1 the image is returned as a Windows metafile.
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