<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 12 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Hi,<br><br>I emailed a little while back about trying to get Tango/FoxtrotGPS to display the changing location of multiple people. I adapted paint_friends() to draw every icon I need and call it at the end of update_position_thread(). I also found that I needed to call fill_tiles_pixel(global_x, global_y, global_zoom, FALSE) beforehand to ensure that movements were updated even when the map remained static.<br> <br>I tested this functionality indoors, feeding the application pre-collected coordinates and it worked fine. However, I've since found that when I try to use it in conjunction with a connected GPS device, the application crashes (I think when the map attempts to autocenter). I looked into the problem and it appears to be crashing on this line in load_tile(): gdk_draw_pixbuf (pixmap, gc_map, (overzoom ? pixbuf_scaled : pixbuf), 0,0, offset_x,offset_y, TILESIZE, TILESIZE, GDK_RGB_DITHER_NONE, 0, 0).<br><br>I've tried everything I can think of to fix this error, I'm fairly new to GDK so I'm struggling now to work out what else might be causing this. If anyone could suggest what the problem might be, or anything else it might be worth investigating I'd be grateful.<br><br>Thanks,<br><br>Ben<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>