Qt4 External keyboard handling issues On wince platform

[CraigTao]

The key s of the external keyboard is treated as a hot key, and the function is the same as backspace.

the source file: C:\Qt\qt-everywhere-opensource-src-4.7.3\src\gui\kernel\qapplication_win.cpp

code snippet:

extern "C" LRESULT QT_WIN_CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
     .....
#if Q_OS_WINCE_WM
        case WM_HOTKEY:
            if(HIWORD(msg.lParam) == VK_TBACK) {
                const bool hotKeyDown = !(LOWORD(msg.lParam) & MOD_KEYUP);
                msg.lParam = 0x69 << 16;
                msg.wParam = VK_BACK;
                if (hotKeyDown) {
                    msg.message = WM_KEYDOWN;
                    qt_keymapper_private()->updateKeyMap(msg);
                } else {
                    msg.message = WM_KEYUP;
                }
            }
            // fall-through intended
#endif 
    ....
}

Comment out the code segment and recompile the library to solve this problem

I have sent a Technical Issue Report to qt official.
Hope to get a feedback that can explain why it is implemented this way
my Email: craigtao@hushmail.com