Running virt-viewer-x64-0.5.6.msi, on Windows 7, connecting to QEMU using spice, AltGR key combinations fails (using Swedish keyboard layout both at server and client).
After some debugging, I realized that there is an extra VK_LCONTROL keypress sent by Windows. This extra VK_LCONTROL will then make the key e.g. AltGr-< actually be Control-AltGr-<, which is not interpreted as a | sign.
So in spice-widget.c : keyboard_hook_cb(), I added SPICE_DEBUG lines which printed out the hooked->scanCode, and realized that this extra VK_LCONTROL has a very suspect scanCode with bit 9 set. If I instead press the left Ctrl key, it will also emit VK_LCONTROL, but with bit 9 cleared.
So I just made sure that keyboard_hook_cb(), silently dropped these strange VK_LCONTROL events, which seems to work for me.
- case VK_LCONTROL:
+ case VK_LCONTROL:
+ // When pressing AltGr, an extra VK_LCONTROL with a special scancode with bit 9 set is sent.
+ // Lets ignore the extra VK_LCONTROL, as that will make AltGr missbehave.
+ if (hooked->scanCode & 0x200)
+ return 1;
SendMessage(win32_window, wparam, hooked->vkCode, dwmsg);