audio_form object
This method will edit text in an input box or status bar.
bool edit_text(int control_id, string new_text, int position, int edit_mode)
Parameters:
control_id
The control ID of the listbox.
new_text
The new text for the edited section.
position
The zero-based starting position for the edit.
edit_mode
One of the three available edit modes (see the text edit mode constants for further information).
Return value:
true on success, false on failure.
Remarks:
None.
Example:

    // Make a simple form with an input box that edits when the change button is pressed.

    #include "form.bgt"

    audio_form form;

    void main()
    {
    form.create_window("test",true);
    int text=form.create_input_box("Type here", "This is a default text", "", 0, true, false);
    int btn1=form.create_button("&Change",true,false);
    int btn2=form.create_button("E&xit",false,true);
    while(true)
    {
    form.monitor();
    if(form.is_pressed(btn1))
    {
    form.edit_text(text, "document", 18, edit_mode_append_to_end);
    }
    if(form.is_pressed(btn2))
    {
    exit();
    }
    if((key_down(KEY_LMENU))&&(key_pressed(KEY_F4)))
    {
    exit();
    }
    wait(5);
    }
    }