typedef struct tagRECT {
int left;
int top;
int right;
int bottom;
} RECT;
The RECT structure defines the coordinates of the upper-left and lower-right corners of a rectangle.
left
Specifies the x-coordinate of the upper-left corner of a rectangle.
top
Specifies the y-coordinate of the upper-left corner of a rectangle.
right
Specifies the x-coordinate of the lower-right corner of a rectangle.
bottom
Specifies the y-coordinate of the lower-right corner of a rectangle.
Neither the width nor height of the rectangle defined by the RECT structure can exceed 32,767 units.