Set NET_WM_PID

1 files changed, 7 insertions, 0 deletions

diff --git a/src/window/window.c b/src/window/window.c
index 08c4585..c03d681 100644
--- a/src/window/window.c
+++ b/src/window/window.c
@@ -331,6 +331,13 @@ static int mgl_window_init(mgl_window *self, const char *title, const mgl_window
         context->net_wm_ping_atom
     };
     XSetWMProtocols(context->connection, self->window, wm_protocol_atoms, 2);
+
+    if(context->net_wm_pid_atom) {
+        const long pid = getpid();
+        XChangeProperty(context->connection, self->window, context->net_wm_pid_atom, XA_CARDINAL,
+                        32, PropModeReplace, (const unsigned char*)&pid, 1);
+    }
+
     XFlush(context->connection);
 
     /* TODO: Check for failure? */