Hello Roland,

While defining delAtom and calling XSetWMProtocls, you specifiy "display", and in your loop, you specify "pDisplay" ; is it the same display ?

Le 19/01/2020 à 13:33, Roland Plüss a écrit :
I'm finishing up my software for releasing but run into a big issue. If
I use window mode instead of full-screen mode the user should be able to
close the window using the X button. I can prevent this from happening
using this code:

Atom delAtom = XInternAtom( display, "WM_DELETE_WINDOW", False );
XSetWMProtocols( display, pWindow, &delAtom, 1 );

The window will not be destroyed when X is pressed so I think this
worked. The problem is though that I do not received ClientMessage and
thus I am unable to close the window. This is the event loop:

XEvent event;
while( XPending( pDisplay ) ){
    XNextEvent( pDisplay, &event );
    log("Event %d", event.type);
    switch( event.type ){
    ...
    case ClientMessage:
       log("Quit Request Received");
       break;
    }
}

Window is created like this:

#define BASIC_EVENT_MASK     ( StructureNotifyMask | ExposureMask |
PropertyChangeMask \
                              | EnterWindowMask | LeaveWindowMask |
KeyPressMask \
                              | KeyReleaseMask | KeymapStateMask |
FocusChangeMask )

#define NOT_PROPAGATE_MASK   ( KeyPressMask | KeyReleaseMask |
ButtonPressMask \
                              | ButtonReleaseMask | PointerMotionMask |
ButtonMotionMask )

XSetWindowAttributes swa;
swa.colormap = colMap;
swa.backing_store = NotUseful;
swa.border_pixel = 0;
swa.event_mask = BASIC_EVENT_MASK;
swa.do_not_propagate_mask = NOT_PROPAGATE_MASK;
swa.override_redirect = False;
swa.save_under = False;
swa.cursor = 0;
swa.bit_gravity = ForgetGravity;
swa.win_gravity = NorthWestGravity;

Any idea what else I need to do to get this working?


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