Draws a border around the specified rectangle by using the specified brush
#include <WinAPIGdiDC.au3>
_WinAPI_FrameRect ( $hDC, $tRECT, $hBrush )
| $hDC | Handle to the device context in which the border is drawn | 
| $tRECT | A $tagRECT structure or a pointer to it that contains the logical coordinates of the upper-left and lower-right corners of the rectangle | 
| $hBrush | Handle to the brush used to draw the border | 
| Success: | True | 
| Failure: | False | 
The brush identified by the $hBrush parameter must have been created by using the _WinAPI_CreateSolidBrush() function, or retrieved by using the _WinAPI_GetStockObject() function
Search FrameRect in MSDN Library.