GetSysColor()    Retrieves the system color element specified
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    GetSysColor( <nDisplayElement> )  -->  nRGBColor


    Returns the current color of the specified display element. Display
    elements are the various parts of a Window and the Windows display
    that appears on the system screen.

 <nDisplayElement>        Specifies the display element whose color is to
                          be retrieved. This parameter can be one of the
                          following values:

         Value            # Number            Meaning

   COLOR_ACTIVEBORDER         10       Active window border.
   COLOR_ACTIVECAPTION         2       Active window title.
   COLOR_APPWORKSPACE         12       Background color of multiple
                                       document interface (MDI) applications.
   COLOR_BACKGROUND            1       Desktop.
   COLOR_BTNFACE              15       Face shading on push buttons.
   COLOR_BTNHIGHLIGHT         20       Selected button in a control.
   COLOR_BTNSHADOW            16       Edge shading on push buttons.
   COLOR_BTNTEXT              18       Text on push buttons.
   COLOR_CAPTIONTEXT           9       Text in title bar, size button, scroll-bar
                                       arrow button.
   COLOR_GRAYTEXT             17       Grayed (dimmed) text. This color is
                                       zero if the current display driver does
                                       not support a solid gray color.
   COLOR_HIGHLIGHT            13       Background of selected item in a
                                       control.
   COLOR_HIGHLIGHTTEXT        14       Text of selected item in a control.
   COLOR_INACTIVEBORDER       11       Inactive window border.
   COLOR_INACTIVECAPTION       3       Inactive window title.
   COLOR_INACTIVECAPTIONTEXT  19       Color of text in an inactive title.
   COLOR_MENU                  4       Menu background.
   COLOR_MENUTEXT              7       Text in menus.
   COLOR_SCROLLBAR             0       Scroll-bar gray area.
   COLOR_WINDOW                5       Window background.
   COLOR_WINDOWFRAME           6       Window frame.
   COLOR_WINDOWTEXT            8       Text in windows.


 The return value is a red, green, blue (RGB) color value for the specified
 display element, if the function is successful.