How to get QChar from KeyPress using WinAPI?

[zither]

Dear all,
I try to use like that. But it returns same value for both 'a' & 'A'.

How can I get differentiate them by using WinAPI?
That's code is OK with Visual Studio C++. Is this a bug in Qt?
Thanks

@LRESULT CALLBACK WinHook::keyboardProcedure(int nCode, WPARAM wParam, LPARAM lParam)
{
if (nCode == HC_ACTION){
if (wParam == WM_KEYDOWN){
KBDLLHOOKSTRUCT p = (KBDLLHOOKSTRUCT) lParam;
BYTE *keyboardState;
keyboardState = new BYTE[256];
if (GetKeyboardState(keyboardState)){
WORD wChar;
int ra = ToAscii((UINT)p->vkCode,(UINT)p->scanCode,keyboardState,&wChar,0);
if (ra>0){
qDebug()<<"wChar is "<<wChar; //return same for both 'a' & 'A'
}
}
}
@

[lgeyer]

It looks like one of your API calls does not respect the SHIFT flag. You might check if VK_SHIFT resp. VK_LSHIFT or VK_RSHIFT is set in keyboardState.

Is there any reason you use platform-specific code in the first place?

[zither]

I think,
@GetKeyboardState(keyboardState);@
already includes VK_SHIFT state. If so, How can I set VK_SHIFT in keyboardState?

For reason,
I'm writing windows hook keyboard Input program with Qt. So, I have no choice to use WinAPI.

Thanks