XposFromIch (hwnd, ln, ich)

Returns the pixel x-position number given character position (ich) on the line number (ln) in the given win­dow. The x-position is relative to the left edge of the whole window. The line does not actually have to be dis­played in the window at the time this function is called.  See: IchFromXpos (hwnd, ln, xp).





The window.


The line number that contains the text to be mea­sured. If ln is out of range, then –1 is returned.


The character index, which is the zero based index of a character on the specified line. If ich exceeds the number of characters on the line, then the x position of the end of the line is returned.

You can use the IchFromXpos function to perform the reverse mapping.