OnKeyDown not getting called for VK_LEFT but fine for all other keys

Question

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hi, i hope someone can help, this is driving me crazy

my left arrow key has just stopped generating ON_WM_KEYDOWN events

i know the key is actually working and i can see the key here

SQL

BOOL CTabTraxView::PreTranslateMessage(MSG* pMsg)
{
    switch (pMsg->message)
    {
    case WM_KEYDOWN:
        TRACE("CTabTraxView::PreTranslateMessage(MSG* pMsg) %d\n", pMsg->lParam);
    case WM_SYSKEYDOWN:
    case WM_LBUTTONDOWN:
    case WM_RBUTTONDOWN:
    case WM_MBUTTONDOWN:
    case WM_LBUTTONUP:
    case WM_RBUTTONUP:
    case WM_MBUTTONUP:
    case WM_MOUSEMOVE:
        m_ToolTip.RelayEvent(pMsg);
        break;
    }
    return CScrollView::PreTranslateMessage(pMsg);
}

but here

C#

void CTabTraxView::OnKeyDown( UINT nChar, UINT nRepCnt, UINT nFlags)
{
    TRACE("CTab2midiView::OnKeyDown nChar=%d\n", nChar);
    GetDocument()->OnKeyDown(nChar);
}

i can see all keys including VK_RIGHT but not VK_LEFT

please help if you can, i don't really want to call OnKeyDown from PreTranslateMessage, i'd rather find and fix the problem

Posted 6-Jun-11 2:05am

steveh2112

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Comments

Resmi Anna 6-Jun-11 8:19am

are you saying that in debug trace you could not see the line

"CTab2midiView::OnKeyDown nChar=37" while pressing Left arrow key???

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steveh2112 · Accepted Answer · 2011-06-06T02:19:00

hi, i just found it, i forgot a added an accelerator for VK_LEFT

so i figured i would just remove it and all's well! well no, it still didn't work.

but then i remembered that in vs2010, MFC apps seem to save state so changing stuff in code doesn't always change stuff which can be VERY confusing

so in my main entry point, i change SetRegistryKey(_T(2112Design")); to SetRegistryKey(_T("x2112Design")); so it forgets its settings

BUT i would like to revert to the original SetRegistryKey(_T(2112Design")); but that kills the VK_LEFT key

is there any way to flush the system registry?

thx steve

OK, just answered my own question again, use regedit on HKEY_CURRENT_USER\Software\<company name>\<application name>\

and delete everything