I forgot the mention that the same code compiled against 1.8.6 works without problem on linux. So I'm pretty sure that there is nothing wrong with the sample code itself. So I've tried both: cairo_surface_destroy(surface); cairo_destroy(cr);<div> and cairo_destroy(cr); cairo_surface_destroy(surface); <div> and they both crash. What next? </div> Thanks Daz </div> <div class="gmail_quote">2009/4/24 Behdad Esfahbod <<a href="mailto:behdad@behdad.org">behdad@behdad.org</a>> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="im">On 04/24/2009 11:59 AM, Gerdus van Zyl wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Try reversing the lines: cairo_surface_destroy(surface); cairo_destroy(cr); destroying the surface before the context looks suspect. and when working with PDF you might want a cairo_surface_finish before destroying. </blockquote> </div> The context has a reference to the surface. And _finish should be called automatically *if* the last reference to the surface is dropped. So, calling it would be a good test to see if that's the problem. behdad<div><div></div><div class="h5"> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> On Fri, Apr 24, 2009 at 4:17 PM, Darren Gallagher<<a href="mailto:dazzag@gmail.com" target="_blank">dazzag@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Using 1.8.6 on windows (with pixman 0.15.2). Built using instructions here: <a href="http://www.williamcyap.com/software/cairo-lib/compiling-cairo-for-windows.xhtml" target="_blank">http://www.williamcyap.com/software/cairo-lib/compiling-cairo-for-windows.xhtml</a> produces a crash witin cairo_destroy() somewhere. The code is as follows: #include<cairo.h> #include<cairo-pdf.h> int main (int argc, char *argv[]) { cairo_surface_t *surface; cairo_t *cr; surface = cairo_pdf_surface_create ("hellocairo.pdf" , 504, 648); cr = cairo_create (surface); cairo_set_source_rgb(cr, 0, 0, 0); cairo_select_font_face (cr, "serif", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL); cairo_set_font_size (cr, 40.0); cairo_move_to(cr, 10.0, 50.0); cairo_show_text(cr, "Hello, Cairo!"); cairo_show_page(cr); cairo_surface_destroy(surface); cairo_destroy(cr); return 0; } the stack is as follows: ntdll.dll!7c90120e() [Frames below may be incorrect and/or missing, no symbols loaded for ntdll.dll] ntdll.dll!7c96c201() ntdll.dll!7c96c63e() ntdll.dll!7c9603b0() kernel32.dll!7c85f8d7() msvcr80d.dll!_CrtIsValidHeapPointer(const void * pUserData=0x00955c50) Line 2072 C++ msvcr80d.dll!_free_dbg_nolock(void * pUserData=0x00955c50, int nBlockUse=1) Line 1279 + 0x9 bytes C++ msvcr80d.dll!_free_dbg(void * pUserData=0x00955c50, int nBlockUse=1) Line 1220 + 0xd bytes C++ msvcr80d.dll!free(void * pUserData=0x00955c50) Line 1178 + 0xb bytes C++ libcairod.dll!_cairo_truetype_subset_fini(_cairo_truetype_subset * subset=0x0012f22c) Line 1171 + 0xe bytes C libcairod.dll!_cairo_pdf_surface_emit_truetype_font_subset(_cairo_pdf_surface * surface=0x00436fe0, _cairo_scaled_font_subset * font_subset=0x0012f4c8) Line 3451 + 0xc bytes C libcairod.dll!_cairo_pdf_surface_emit_unscaled_font_subset(_cairo_scaled_font_subset * font_subset=0x0012f4c8, void * closure=0x00436fe0) Line 3722 + 0xd bytes C libcairod.dll!_cairo_sub_font_collect(void * entry=0x0043af78, void * closure=0x0012f614) Line 578 + 0x15 bytes C libcairod.dll!_cairo_scaled_font_subsets_foreach_internal(_cairo_scaled_font_subsets * font_subsets=0x004386b8, _cairo_status (_cairo_scaled_font_subset *, void *)* font_subset_callback=0x100b67a0, void * closure=0x00436fe0, cairo_subsets_foreach_type_t type=CAIRO_SUBSETS_FOREACH_UNSCALED) Line 889 + 0xd bytes C libcairod.dll!_cairo_scaled_font_subsets_foreach_unscaled(_cairo_scaled_font_subsets * font_subsets=0x004386b8, _cairo_status (_cairo_scaled_font_subset *, void *)* font_subset_callback=0x100b67a0, void * closure=0x00436fe0) Line 918 + 0x13 bytes C libcairod.dll!_cairo_pdf_surface_emit_font_subsets(_cairo_pdf_surface * surface=0x00436fe0) Line 3774 + 0x18 bytes C libcairod.dll!_cairo_pdf_surface_finish(void * abstract_surface=0x00436fe0) Line 1195 + 0x9 bytes C libcairod.dll!cairo_surface_finish(_cairo_surface * surface=0x00436fe0) Line 530 + 0x10 bytes C libcairod.dll!_cairo_paginated_surface_finish(void * abstract_surface=0x00433998) Line 172 + 0xf bytes C libcairod.dll!cairo_surface_finish(_cairo_surface * surface=0x00433998) Line 530 + 0x10 bytes C libcairod.dll!cairo_surface_destroy(_cairo_surface * surface=0x00433998) Line 435 + 0x9 bytes C libcairod.dll!_cairo_gstate_fini(_cairo_gstate * gstate=0x00438a30) Line 205 + 0xf bytes C libcairod.dll!cairo_destroy(_cairo * cr=0x00438a10) Line 228 + 0xc bytes C <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> hellocairo.exe!main(int argc=2, char * * argv=0x00436f58) Line 49 + 0xc bytes C </blockquote> hellocairo.exe!__tmainCRTStartup() Line 597 + 0x19 bytes C hellocairo.exe!mainCRTStartup() Line 414 C kernel32.dll!7c817067() Any help appreciated. Thanks Daz _______________________________________________ cairo mailing list <a href="mailto:cairo@cairographics.org" target="_blank">cairo@cairographics.org</a> <a href="http://lists.cairographics.org/mailman/listinfo/cairo" target="_blank">http://lists.cairographics.org/mailman/listinfo/cairo</a> </blockquote> _______________________________________________ cairo mailing list <a href="mailto:cairo@cairographics.org" target="_blank">cairo@cairographics.org</a> <a href="http://lists.cairographics.org/mailman/listinfo/cairo" target="_blank">http://lists.cairographics.org/mailman/listinfo/cairo</a> </blockquote> </div></div></blockquote></div>