new file mode 100644
@@ -0,0 +1,14 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef UI_WIN32_KBD_HOOK_H
+#define UI_WIN32_KBD_HOOK_H
+
+void win32_kbd_set_window(void *hwnd);
+void win32_kbd_set_grab(bool grab);
+
+#endif
new file mode 100644
@@ -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)
+{
+}
new file mode 100644
@@ -0,0 +1,102 @@
+/*
+ * 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.
+ *
+ * The win32 keyboard hooking code was imported from project spice-gtk.
+ */
+
+#include "qemu/osdep.h"
+#include "sysemu/sysemu.h"
+#include "ui/win32-kbd-hook.h"
+
+static Notifier win32_unhook_notifier;
+static HHOOK win32_keyboard_hook;
+static HWND win32_window;
+static DWORD win32_grab;
+
+static LRESULT CALLBACK keyboard_hook_cb(int code, WPARAM wparam, LPARAM lparam)
+{
+ if (win32_window && code == HC_ACTION && win32_window == GetFocus()) {
+ KBDLLHOOKSTRUCT *hooked = (KBDLLHOOKSTRUCT *)lparam;
+
+ if (wparam != WM_KEYUP) {
+ DWORD dwmsg = (hooked->flags << 24) |
+ ((hooked->scanCode & 0xff) << 16) | 1;
+
+ switch (hooked->vkCode) {
+ case VK_CAPITAL:
+ /* fall through */
+ case VK_SCROLL:
+ /* fall through */
+ case VK_NUMLOCK:
+ /* fall through */
+ case VK_LSHIFT:
+ /* fall through */
+ case VK_RSHIFT:
+ /* fall through */
+ case VK_RCONTROL:
+ /* fall through */
+ case VK_LMENU:
+ /* fall through */
+ case VK_RMENU:
+ break;
+
+ case VK_LCONTROL:
+ /*
+ * When pressing AltGr, an extra VK_LCONTROL with a special
+ * scancode with bit 9 set is sent. Let's ignore the extra
+ * VK_LCONTROL, as that will make AltGr misbehave.
+ */
+ if (hooked->scanCode & 0x200) {
+ return 1;
+ }
+ break;
+
+ default:
+ if (win32_grab) {
+ SendMessage(win32_window, wparam, hooked->vkCode, dwmsg);
+ return 1;
+ }
+ break;
+ }
+
+ } else {
+ switch (hooked->vkCode) {
+ case VK_LCONTROL:
+ if (hooked->scanCode & 0x200) {
+ return 1;
+ }
+ break;
+ }
+ }
+ }
+
+ return CallNextHookEx(NULL, code, wparam, lparam);
+}
+
+static void keyboard_hook_unhook(Notifier *n, void *data)
+{
+ UnhookWindowsHookEx(win32_keyboard_hook);
+ win32_keyboard_hook = NULL;
+}
+
+void win32_kbd_set_window(void *hwnd)
+{
+ if (hwnd && !win32_keyboard_hook) {
+ /* note: the installing thread must have a message loop */
+ win32_keyboard_hook = SetWindowsHookEx(WH_KEYBOARD_LL, keyboard_hook_cb,
+ GetModuleHandle(NULL), 0);
+ if (win32_keyboard_hook) {
+ win32_unhook_notifier.notify = keyboard_hook_unhook;
+ qemu_add_exit_notifier(&win32_unhook_notifier);
+ }
+ }
+
+ win32_window = hwnd;
+}
+
+void win32_kbd_set_grab(bool grab)
+{
+ win32_grab = grab;
+}
@@ -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
@@ -15,6 +15,9 @@ common-obj-$(CONFIG_SPICE) += spice-core.o spice-input.o spice-display.o
common-obj-$(CONFIG_COCOA) += cocoa.o
common-obj-$(CONFIG_VNC) += $(vnc-obj-y)
common-obj-$(call lnot,$(CONFIG_VNC)) += vnc-stubs.o
+ifneq (,$(findstring m,$(CONFIG_SDL)$(CONFIG_GTK)))
+common-obj-$(CONFIG_WIN32) += win32-kbd-hook.o
+endif
# ui-sdl module
common-obj-$(CONFIG_SDL) += sdl.mo