ui/win32-kbd-hook: handle AltGr in a hook procedure

Import win32 keyboard hooking code from project spice-gtk. This
patch removes the extra left control key up/down input events
inserted by Windows for the right alt key up/down input events
with international keyboard layouts. Additionally there's some
code to grab the keyboard.

The next patches will use this code.

Only Windows needs this.

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Message-id: 20200516072014.7766-1-vr_qemu@t-online.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

2 files changed, 19 insertions, 0 deletions

diff --git a/stubs/Makefile.objs b/stubs/Makefile.objs
index 45be5dc0ed..6a9e3135e8 100644
--- a/stubs/Makefile.objs
+++ b/stubs/Makefile.objs
@@ -32,6 +32,7 @@ stub-obj-y += trace-control.o
 stub-obj-y += uuid.o
 stub-obj-y += vm-stop.o
 stub-obj-y += vmstate.o
+stub-obj-y += win32-kbd-hook.o
 stub-obj-y += fd-register.o
 stub-obj-y += qmp_memory_device.o
 stub-obj-y += target-monitor-defs.o
diff --git a/stubs/win32-kbd-hook.c b/stubs/win32-kbd-hook.c
new file mode 100644
index 0000000000..1a084b081a
--- /dev/null
+++ b/stubs/win32-kbd-hook.c
@@ -0,0 +1,18 @@
+/*
+ * Win32 keyboard hook stubs
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or
+ * (at your option) any later version.  See the COPYING file in the
+ * top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "ui/win32-kbd-hook.h"
+
+void win32_kbd_set_window(void *hwnd)
+{
+}
+
+void win32_kbd_set_grab(bool grab)
+{
+}