WTL中combox如何接受keydown消息

Question

WM_KEYDOWN不行的

Answer 1

子类化combo
.h 
CContainedWindow m_Edit;BEGIN_MSG_MAP(CYourClass)ALT_MSG_MAP(1)
MESSAGE_HANDLER(WM_GETDLGCODE, OnGetDlgCode)
MESSAGE_HANDLER(WM_KEYDOWN, onkeydown)
MESSAGE_HANDLER(WM_CHAR, OnEditInputMagnification)END_MSG_MAP()
.cpp 
in constructor: CYourClass::CYourClass() : m_Edit(_T("EDIT"), this, 1) {}
in OnInitDialog: m_Edit.SubclassWindow(::GetWindow(GetDlgItem(IDC_COMBO), GW_CHILD));add if you want all keys add following:LRESULT CYourClass::OnGetDlgCode(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
return DLGC_WANTALLKEYS;
}
and finally you can get KeyDown:LRESULT CYourClass::onkeydown(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
switch (wParam)
{
case VK_RETURN:
{
...
}
break;
case VK_TAB:
{
...
}
break;
}bHandled = FALSE;
return S_OK;
}

Answer 2

方法一同上
方法2 WM_FORWARDMSG