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</o:shapelayout></xml><![endif]--></head><body lang=ZH-CN link="#0563C1" vlink="#954F72" style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt'>Hi, There:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt'>Sorry to bother you! But I just found a bug in my win32 program. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt'>First I create an image surface then draw some points in it, <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt'>then I create an HDC surface, unfortunately when I call <span style='background:yellow;mso-highlight:yellow'>cairo_set_source_surface</span>(), it occurs Memory Leak!<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt'>I would great happy to receive your reply whatever!<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>First:<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>if (img_cr != NULL)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> {<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> cairo_destroy (img_cr);<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> img_cr = NULL;<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> }<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> if (img_surface != NULL)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> {<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> cairo_surface_destroy (img_surface);<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> img_surface = NULL;<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> }<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> if (img_surface == NULL)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> {<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> img_surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 640, 480);<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> img_cr = cairo_create (img_surface); <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> } <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> cairo_set_source_rgba(img_cr, 0, 0, 0, 1.0);<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> cairo_set_line_width (img_cr, 2.5); <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> for (int i = 0; i <= count - 2; i++ ) <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> { <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> cairo_move_to(img_cr, coordx[i], coordy[i]); <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> cairo_line_to(img_cr, coordx[i+1], coordy[i+1]);<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> }<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> cairo_stroke(img_cr);<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Second:<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>cairo_surface_t *surface = cairo_win32_surface_create(memDC.GetSafeHdc());<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> cairo_t *cr = cairo_create (surface);<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> <span style='background:yellow;mso-highlight:yellow'>cairo_set_source_surface (cr, img_surface, 1, 1);</span><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> cairo_paint_with_alpha (cr, 1.0); <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> cairo_destroy(cr);<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> cairo_surface_destroy (surface);<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN style='font-family:"Arial","sans-serif";color:#333333'>Ivan Liang<o:p></o:p></span></p><p class=MsoNormal><span lang=EN style='font-family:"Arial","sans-serif";color:#333333'>Beijing Mysher Technology Co., Ltd. R & D department<br>Tel: (86) 10-62515078 turn 810<br>Fax: (86) 10-62515078<br>E-mail: <a href="mailto:ivan@mysher.com">ivan@mysher.com</a><br>Address: Zhongguancun Street, Haidian District, Beijing, No. 45 XingFa Building, Room 501<br>Postal Code: 100086</span><span lang=EN><o:p></o:p></span></p></div></body></html>