Queries cursor position.
get_tposition queries the current position of the text cursor in the current output window. The position is measured in the coordinate system of the window (in pixels for text windows). The next output of text in this window starts at the cursor position. The left end of the baseline for writing the next string (not considering descenders) is placed on this position. The cursor is assigned to the window and does not change if a switch of the current output window occurs. The position is changed by the output or input of text (write_string, read_string) or by an explicit change of position by (set_tposition, new_line).
If the output text does not fit completely into the window an exception is raised. This can be avoided by set_check(::'~text':).
Row (output_control) |
point.y -> integer |
row index of text cursor position. |
Column (output_control) |
point.x -> integer |
column index of text cursor position. |
get_tposition returns TRUE, if a window is activated. Otherwise an exception is raised.
open_window, set_window, open_textwindow, search_font, set_font
set_tposition, write_string, read_string, read_char
new_line, read_string, set_tposition, write_string, set_check