[RESOLVED] CPropertySheet 'Help' key (disabling)

[John E]

I need to "gray out" (i.e. enable / disable) the 'Help' button on a property sheet, depending upon which property page is currently selected. Just to check that I had the right resource ID I tried this:-

GetParent()->GetDlgItem(IDHELP)->SetWindowText("Goodbye");

which successfully changes the text to "Goodbye". I also tried this:-

GetParent()->GetDlgItem(IDHELP)->ShowWindow(SW_HIDE);

which successfully made the button disappear. However, I can't seem to find a way to give the button a standard 'disabled' look. This doesn't work:-

GetParent()->GetDlgItem(IDHELP)->EnableWindow(FALSE);

....and this actually asserts although it's a technique I've used many times before with other buttons:-

GetParent()->GetDlgItem(IDHELP)->ShowWindow(SW_HIDE);
GetParent()->GetDlgItem(IDHELP)->ModifyStyle(WS_TABSTOP, ~WS_ENABLED);
GetParent()->GetDlgItem(IDHELP)->ShowWindow(SW_SHOWNOACTIVATE);

I'm rapidly running out of ideas. Can anyone suggest an alternative strategy?

[ Edit... ]
Just for the record, this doesn't work either - but at least it doesn't assert....

GetParent()->GetDlgItem(IDHELP)->ModifyStyle(WS_TABSTOP, WS_DISABLED);
GetParent()->GetDlgItem(IDHELP)->ShowWindow(SW_HIDE);
GetParent()->GetDlgItem(IDHELP)->ShowWindow(SW_SHOWNOACTIVATE);