introduce tab_window ctor and null memebers during construction. show_tab() may be called before window_refresh() [which sets ypad_pos and xpad_pos to 0], causing prefresh() call with uninit win->ypad_pos, win->xpad_pos args. Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky(a)gmail.com&gt; --- src/display.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/display.h b/src/display.h index b450f8b..9af3ec0 100644 --- a/src/display.h +++ b/src/display.h @@ -53,6 +53,14 @@ public: short int xpad_pos, ypad_pos; WINDOW *win; + tab_window() { + cursor_pos = 0; + cursor_max = 0; + xpad_pos =0; + ypad_pos = 0; + win = NULL; + } + virtual void cursor_down(void) { if (cursor_pos < cursor_max ) cursor_pos++; repaint(); } ; _______________________________________________ PowerTop mailing list PowerTop(a)lists.01.org https://lists.01.org/mailman/listinfo/powertop