Hello, I'm assuming that I need to call xcb_change_property on my window to change one of its properties. What should I set the type argument to, and am I correct in assuming that the data argument should be "WM_DELETE_WINDOW"?<br> <br><pre><code> xcb_void_cookie_t xcb_change_property (xcb_connection_t *c, /* Connection to the X server */<br> uint8_t mode, /* Property mode */<br> xcb_window_t window, /* Window */<br> xcb_atom_t property, /* Property to change */<br> xcb_atom_t type, /* Type of the property */<br> uint8_t format, /* Format of the property (8, 16, 32) */<br> uint32_t data_len, /* Length of the data parameter */<br> const void *data); /* Data */<br></code></pre><br><br><div class="gmail_quote"> On Fri, Dec 31, 2010 at 2:16 AM, Vincent Torri <span dir="ltr"><<a href="mailto:vtorri@univ-evry.fr">vtorri@univ-evry.fr</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> <br> Hey,<div><div></div><div class="h5"><br> <br> On Fri, 31 Dec 2010, Cinolt wrote:<br> <br> <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> Hello all, I'm relatively new to programming in X. I first started learning<br> Xlib and recently found out about XCB and decided to switch. My question is,<br> how can I make my program react to the user closing out of a window before<br> it happens, i.e. to display an "Are you sure?" message. Thanks for any help.<br> </blockquote> <br></div></div> it's an ICCCM thing. Use the WM_DELETE_WINDOW atom [1]<br> <br> Vincent Torri<br> <br> [1] <a href="http://tronche.com/gui/x/icccm/sec-4.html#s-4.2.8.1" target="_blank">http://tronche.com/gui/x/icccm/sec-4.html#s-4.2.8.1</a><br> </blockquote></div><br>