API click: on mouse down, move the cursor to the clicked location, and reset the selection

discard the oldest entry in the undo list

find the x/y location of a character, and remember info about the previous row in case we get a move-up event (for page up, we'll have to rescan)

canoncialize the selection so start <= end

find minimum y position if it starts at x1

rects array must be big enough to accommodate all characters in the given ranges

check if a utf8 string contains a prefix which is the utf16 string; if so return length of matching utf8 string

Quadratic Bezier takes 3 controls points

Queue a mouse wheel event (most mouse/API will only have a Y component)

Guaranteed to honor 'num_segments'

Guaranteed to honor 'num_segments'

If you get an error please report on GitHub. You may try different GL context version or GLSL version.

Compare to detect usage errors

Cursor & Selection

After a user-input the cursor stays on for a while without blinking

Find window given position, search front-to-back FIXME: Note that we have an inconsequential lag here: OuterRectClipped is updated in Begin(), so wind

Calculates the closest point along each bezier curve segment.

Window has already passed the IsWindowNavFocusable()

Retrieve list of range (2 int per range, values are inclusive)