cairo_xlib_surface_create ()

cairo_surface_t* cairo_xlib_surface_create  (Display *dpy,
                                             Drawable drawable,
                                             Visual *visual,
                                             int width,
                                             int height);

Creates an Xlib surface that draws to the given drawable. The way that colors are represented in the drawable is specified by the provided visual.

NOTE: If drawable is a Window, then the function cairo_xlib_surface_set_size must be called whenever the size of the window changes.

cairo_xlib_surface_create_for_bitmap ()

cairo_surface_t* cairo_xlib_surface_create_for_bitmap
                                            (Display *dpy,
                                             Pixmap bitmap,
                                             Screen *screen,
                                             int width,
                                             int height);

Creates an Xlib surface that draws to the given bitmap. This will be drawn to as a CAIRO_FORMAT_A1 object.

cairo_xlib_surface_set_size ()

void        cairo_xlib_surface_set_size     (cairo_surface_t *surface,
                                             int width,
                                             int height);

Informs cairo of the new size of the X Drawable underlying the surface. For a surface created for a Window (rather than a Pixmap), this function must be called each time the size of the window changes. (For a subwindow, you are normally resizing the window yourself, but for a toplevel window, it is necessary to listen for ConfigureNotify events.)

A Pixmap can never change size, so it is never necessary to call this function on a surface created for a Pixmap.

cairo_xlib_surface_set_drawable ()

void        cairo_xlib_surface_set_drawable (cairo_surface_t *surface,
                                             Drawable drawable,
                                             int width,
                                             int height);

Informs cairo of a new X Drawable underlying the surface. The drawable must match the display, screen and format of the existing drawable or the application will get X protocol errors and will probably terminate. No checks are done by this function to ensure this compatibility.