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  virtual | 
Moves the caret to the previous line. Scrolls the window if necessary.
This function moves the caret to the previous line and scrolls the window if necessary.
| bSetCaretToMaxColumn | If TRUE the caret will be set to the maximal column, otherwise on the same column. | 
| bRedrawOnScroll | Specifies whether the edit control should be redrawn if scrolling has occured as a result of this operation. |