When a CPropertyPage is activated, the first control in the page's tab
order will get the focus by default. To change the default to a different
control, derive a class from CPropertyPage, override OnSetActive(), and
post a user message to a member function that will actually set the focus
to the desired control.
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CPropertySheet's member function OnSetActive() is called when a
PSN_SETACTIVE message is sent to that page. Attempting to set the focus to
a control while in this handler won't produce the expected results because
after this notification is handled, the tab control will get the focus.
Therefore, you need to post a message to the property sheet's message queue
with a user message in order to set the focus to the desired control once
the page is active.
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Sample Code
// this is the user-defined message
#define WM_SETPAGEFOCUS WM_APP+2
BEGIN_MESSAGE_MAP(CMyPage, CPropertyPage)
ON_MESSAGE(WM_SETPAGEFOCUS, OnSetPageFocus)
END_MESSAGE_MAP()
BOOL CMyPage::OnSetActive()
{
BOOL fRet = CPropertyPage::OnSetActive();
PostMessage(WM_SETPAGEFOCUS, 0, 0L);
return fRet;
}
LONG CMyPage::OnSetPageFocus(UINT wParam, LONG lParam)
{
// IDC_BUTTON2 is the button on this property page
// that you want to give the default focus.
CButton* pBtn = (CButton*)GetDlgItem(IDC_BUTTON2);
ASSERT(pBtn);
pBtn->SetFocus();
return 0;
}
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This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.
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