bool CChordEaseApp::HandleDlgKeyMsg(MSG* pMsg)
{
static const LPCSTR EditBoxCtrlKeys = "ACHVX"; // Z reserved for app undo
CMainFrame *Main = theApp.GetMain();
ASSERT(Main != NULL); // main frame must exist
switch (pMsg->message) {
case WM_KEYDOWN:
{
int VKey = INT64TO32(pMsg->wParam);
bool bTryMainAccels = FALSE; // assume failure
if ((VKey >= VK_F1 && VKey <= VK_F24) || VKey == VK_ESCAPE) {
bTryMainAccels = TRUE; // function key or escape
} else {
bool IsAlpha = VKey >= 'A' && VKey <= 'Z';
CEdit *pEdit = CFocusEdit::GetEdit();
if (pEdit != NULL) { // if an edit control has focus
if ((IsAlpha // if (alpha key
&& strchr(EditBoxCtrlKeys, VKey) == NULL // and unused by edit
&& (GetKeyState(VK_CONTROL) & GKS_DOWN)) // and Ctrl is down)
|| ((VKey == VK_SPACE // or (space key,
|| VKey == VK_RETURN || VKey == VK_BACK) // Enter or Backspace
&& (GetKeyState(VK_CONTROL) & GKS_DOWN)) // and Ctrl is down)
|| (VKey == VK_SPACE // or (space key
&& (GetKeyState(VK_SHIFT) & GKS_DOWN)) // and Shift is down)
|| (IsAlpha // or (alpha key
&& pEdit->IsKindOf(RUNTIME_CLASS(CNumEdit)) // and numeric edit
&& (VKey > 'G' // and (key above G
|| !pEdit->IsKindOf(RUNTIME_CLASS(CNoteEdit))) // or not note edit)
&& (GetKeyState(VK_SHIFT) & GKS_DOWN))) // and Shift is down)
bTryMainAccels = TRUE; // give main accelerators a try
} else { // non-edit control has focus
if (IsAlpha // if alpha key
|| VKey == VK_SPACE // or space key
|| (GetKeyState(VK_CONTROL) & GKS_DOWN) // or Ctrl is down
|| (GetKeyState(VK_SHIFT) & GKS_DOWN)) // or Shift is down
bTryMainAccels = TRUE; // give main accelerators a try
}
}
if (bTryMainAccels) {
HACCEL hAccel = Main->GetAccelTable();
if (hAccel != NULL
&& TranslateAccelerator(Main->m_hWnd, hAccel, pMsg))
return(TRUE); // message was translated, stop dispatching
}
}
break;
case WM_SYSKEYDOWN:
// if focused window isn't descendant of main frame (e.g. floating bar's controls
// are descendants of miniframe) main frame must steal focus else main menus fail
if (!IsChild(Main->m_hWnd, GetFocus())) { // avoid stealing focus needlessly
if (GetKeyState(VK_SHIFT) & GKS_DOWN) // if context menu
return(FALSE); // keep dispatching (false alarm)
Main->SetFocus(); // main frame must have focus to display menus
Main->SendMessage(pMsg->message, pMsg->wParam, pMsg->lParam); // enter menu mode
return(TRUE); // message was translated, stop dispatching
}
break;
}
return(FALSE); // continue dispatching
}
