Re: CToolTipCtrl & Property Pages
If you use your Property Pages in modeless mode, than you need to do
a
HOOK. The PreTranslateMessage() doesn't work in this scenario.
HHOOK i_hHook = NULL;
YourPropertySheet* i_PropSheet = NULL;
// Hook procedure for WH_GETMESSAGE hook type.
LRESULT CALLBACK hook_GetMessageProc(int nCode, WPARAM wParam, LPARAM
lParam)
{
// Switch the module state for the correct handle to be used.
AFX_MANAGE_STATE(AfxGetStaticModuleState());
// If this is a keystrokes message, translate it in controls'
// PreTranslateMessage().
LPMSG lpMsg = (LPMSG) lParam;
if( (nCode >= 0) &&
PM_REMOVE == wParam &&
//(lpMsg->message >= WM_KEYFIRST && lpMsg->message <= WM_KEYLAST)
&&
i_PropSheet &&
i_PropSheet->PreTranslateMessage((LPMSG)lParam) )
{
// The value returned from this hookproc is ignored, and it
cannot
// be used to tell Windows the message has been handled. To avoid
// further processing, convert the message to WM_NULL before
// returning.
lpMsg->message = WM_NULL;
lpMsg->lParam = 0L;
lpMsg->wParam = 0;
}
// Passes the hook information to the next hook procedure in
// the current hook chain.
return ::CallNextHookEx(i_hHook, nCode, wParam, lParam);
}
// in OnInitDialog() of your PropertySheet
{
i_PropSheet = this;
// Install the WH_GETMESSAGE hook function.
i_hHook = ::SetWindowsHookEx(WH_GETMESSAGE,
hook_GetMessageProc,
AfxGetInstanceHandle
(),
GetCurrentThreadId
());
ASSERT(i_hHook);
}
// in d-tor of you PropertySheet
{
// Uninstall the WH_GETMESSAGE hook function.
VERIFY(::UnhookWindowsHookEx(i_hHook));