<html> <head> <style> P { margin:0px; padding:0px } body { FONT-SIZE: 10pt; FONT-FAMILY:Tahoma } </style> </head> <body><div style="text-align: left;">Hello, I'm trying to create transparent PNGs and I'm running into a problem where the surface doesn't get cleared when I destroy a cairo+surface pair under Windows. Then when I create a second object there is data left around (a red rectangle) from the original cairo object which corrupts the second image. I suspect that I'm tearing down something incorrectly and the reference counts don't drop to zero (cairo_surface_get_reference_count() doesn't seem to be available on the Windows build on Tor Lillquist's page). Has anyone encountered this before? The following is an example demonstrating this problem on Cairo 1.4.0. When I make the second call to draw() the contents of the original surface are left around in the second image (red rectangle).  Am I doing something wrong in tearing down the surface/cairo object? It works fine under Linux but not under Win32 (Visual Studio .Net 2003 under XP) using the library provided by Tor. Incorrect output on Windows:     http://bradford.elliott.googlepages.com/one_windows.png     http://bradford.elliott.googlepages.com/two_windows.png (red rectangle is left around from one_windows.png) Correct output on Linux:     http://bradford.elliott.googlepages.com/one_linux.png     http://bradford.elliott.googlepages.com/two_linux.png (no red rectangle which is what I expect) Can anyone tell me what I'm doing wrong? Any help would be appreciated. Thanks, Here is a short snippet demonstrating the problem:    #include <cairo.h>       void draw(const char* output_file, int x, int y)    {       cairo_t*         image;       cairo_surface_t* surface;       int              width  = 126;       int              height = 24;            surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);       image = cairo_create(surface);            cairo_rectangle(image, x, y, 20, 20);       cairo_set_source_rgba(image, 0,0,0,1);       cairo_fill(image);            cairo_surface_write_to_png(surface, output_file);       cairo_surface_destroy(surface);       cairo_destroy(image);    }    int main(void)    {       draw("one.png", 0, 0);       draw("two.png", 10, 10);    } </div> <hr />Explore the seven wonders of the world <a href='http://search.msn.com/results.aspx?q=7+wonders+world&mkt=en-US&form=QBRE' target='_new'>Learn more!</a></body> </html>