SetWinColor
WCTabHandle newColorTable ; address of a new color table
SetWinColor sets the specified window's color table and creates an auxiliary window record for windows that don't already have one.
newColorTable is a handle to the new color table's location.
Notes: Calling SetWinColor to act on a color window automatically sets the window's backColor to the content color in the new color table, allowing
application updates without affecting the background.