William Poetra Yoga H williampoetra@yahoo.com writes:
Oh, so:
r.left = 10; r.top = 10; r.right = 60; r.bottom = 85; FillRect(hdc, &r, hbr);
And for everything else when we have an x by y rectangle, we actually mean (x-1) by (y-1), is it OK to assume so? Am I correct?
Will fill a 50x75 rectangle, with width of (60-10) and height of (85-10), am I correct here?
Yes.
And, is my second assumption correct, btw? I mean, x = r.right - r.left + 1 y = r.bottom - r.top + 1
I'm not sure what you mean, it seems you are trying to think too hard about it; just don't worry about doing +1/-1, that should never be an issue, just compute the limits the intuitive way. If you want an x by y rectangle, just set right = left + x and bottom = top + y and everything will behave properly.