Hello,<div><br></div><div>I'm trying to resize an X11 XImage which is a 640x480 pixel image from a video grabber, to be displayed on a window in an X11/Motif application. </div><div><br></div><div>If I comment out the scale command in the following code, the image is displayed fine, albeit clipped on my window. If I uncomment the scale operation, there is no image in the window.</div><div> <br></div><div>Any ideas? Thanks!</div><div><br></div><div><br></div><div><div><br></div><div> //Create a simple X11 window for displaying the XImage...</div><div> window = XCreateSimpleWindow(</div><div> display,</div> <div> RootWindowOfScreen(screen),</div><div> 0, // x</div><div> 0, // y</div><div> width,</div><div> height,</div><div> 0, // border width</div><div> BlackPixelOfScreen(screen), // border</div> <div> BlackPixelOfScreen(screen) // background</div><div> );</div><div> XMapRaised(display, window);</div><div> </div><div> //cairo stuff...</div><div> cairo_surface_t *surface_dest = cairo_xlib_surface_create(display, window, XDefaultVisualOfScreen(screen), width, height);</div> <div> cairo_t *cr_dest = cairo_create(surface_dest);</div><div> </div><div> cairo_surface_t *surface_source = cairo_image_surface_create_for_data((unsigned char*)(xImage->data), CAIRO_FORMAT_RGB24, xImage->width, xImage->height, xImage->bytes_per_line);</div> <div><span class="Apple-tab-span" style="white-space:pre"> </span> </div><div> cairo_scale(cr_dest, width / xImage->width, height / xImage->height);</div><div><br></div><div> cairo_set_source_surface(cr_dest, surface_source, 0, 0);</div> <div> cairo_paint(cr_dest);</div><div> cairo_surface_destroy(surface_source);</div><div><br></div><div> //Put the scaled XImage on the window...</div><div> XPutImage(display, window, gc, xImage, 0, 0, 0, 0, width, height);</div> <div><span class="Apple-tab-span" style="white-space:pre"> </span></div><div> cairo_surface_destroy(surface_dest);</div></div><div> cairo_surface_destroy(surface_source);</div>