Hi Bram, When the GUI is launched by using ":gui" from Vim or when the binary is not named gvim (like vim.gtk in Debian), the WM_CLASS X property isn't set correctly.
Sam Morris provided the attached patch so WM_CLASS is consistently set, which also ensures the correct .desktop file is found when window managers try to find the tray icon for Vim. Cheers, -- James GPG Key: 4096R/331BA3DB 2011-12-05 James McCoy <james...@debian.org>
diff --git a/src/gui_gtk_x11.c b/src/gui_gtk_x11.c
--- a/src/gui_gtk_x11.c
+++ b/src/gui_gtk_x11.c
@@ -1447,6 +1447,11 @@
using_gnome = 1;
#endif
+ /* This defaults to argv[0], but we want it to match the name of
+ * the shipped gvim.desktop so that Vim's windows can be
+ * associated with this file. */
+ g_set_prgname("gvim");
+
/* Don't use gtk_init() or gnome_init(), it exits on failure. */
if (!gtk_init_check(&gui_argc, &gui_argv))
{
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