| BOOL SetRectRgn(hrgn, nLeftRect, nTopRect, nRightRect, nBottomRect) | |||||
| HRGN hrgn; | /* handle of region | */ | |||
| int nLeftRect; | /* x-coordinate top-left corner of rectangle | */ | |||
| int nTopRect; | /* y-coordinate top-left corner of rectangle | */ | |||
| int nRightRect; | /* x-coordinate bottom-right corner of rectangle | */ | |||
| int nBottomRect; | /* y-coordinate bottom-right corner of rectangle | */ | |||
The SetRectRgn function changes the specified region into a rectangular region with the specified coordinates.
hrgn
Identifies the region.
nLeftRect
Specifies the x-coordinate of the upper-left corner of the rectangular region.
nTopRect
Specifies the y-coordinate of the upper-left corner of the rectangular region.
nRightRect
Specifies the x-coordinate of the lower-right corner of the rectangular region.
nBottomRect
Specifies the y-coordinate of the lower-right corner of the rectangular region.
The return is TRUE if the function is successful. Otherwise, it is FALSE.
The region does not include the lower and right boundaries of the rectangle.
CreateRectRgn