void OffsetRect(lpRect,X,Y)
This function moves the given rectangle by the specified offsets. The OffsetRect function moves the rectangle X units along the x-axis and Y units along the y-axis. The X and Y parameters are signed values, so the rectangle can be moved left or right, and up or down.
| Parameter | Type/Description |
| lpRect | LPRECT Points to a RECT data structure that contains the rectangle to be moved. | |
| X | int Specifies the amount to move left or right. It must be negative to move left. | |
| Y | int Specifies the amount to move up or down. It must be negative to move up. |
None.
The coordinate values of a rectangle must not be greater than 32,767 or less than –32,768. The X and Y parameters must be chosen carefully to prevent invalid rectangles.