C / C++ / MFC

Vaclav_Sal wrote:

For now CMainFrame::PreTranslateMessage(MSG* pMsg)

// Added to CMFCTesterDlg class declaration (h file)

    afx_msg LRESULT OnTest(WPARAM wp, LPARAM lp);
    afx_msg LRESULT OnTest1(WPARAM wp, LPARAM lp);


// Added to CMFCTesterDlg class implementation (cpp file)

#define WM_TEST      (WM_APP+7)
#define WM_TEST_1    (WM_APP+8)

BEGIN_MESSAGE_MAP(CMFCTesterDlg, CMyDialog)
    ON_MESSAGE(WM_TEST,&CMFCTesterDlg::OnTest)
    ON_MESSAGE(WM_TEST_1,&CMFCTesterDlg::OnTest1)
END_MESSAGE_MAP()

void CMFCTesterDlg::OnOK()
{
    AfxGetMainWnd()-> PostMessage(WM_TEST, 1, 1);
    AfxGetMainWnd()-> PostMessage(WM_TEST_1, 1, 1);
}


LRESULT CMFCTesterDlg::OnTest(WPARAM wp, LPARAM lp)
{
    AfxMessageBox(_T("WM_TEST Update status "));
    return 0;
}


LRESULT CMFCTesterDlg::OnTest1(WPARAM wp, LPARAM lp)
{
    AfxMessageBox(_T("WM_TEST_1 Update status "));
    return 0;
}

Mark Salsbery
Microsoft MVP - Visual C++

Mark Salsbery wrote:

If you must use PreTranslateMessage(), then return non-zero to discontinue any further processing of
the message. Return zero to let the message be dispatched/processed normally.

Mark Salsbery wrote:

I think that should have happened in the OP's code too...something was wrong somewhere else IMO.

Mark Salsbery wrote:

Are you using an app class PreTranslateMessage() override or main window class override?

Mark Salsbery wrote:

Moral: PreTranslateMessage() is a bad place to do message boxes from

Greg Ellis wrote:

so I can actually safely use GDI calls to draw on the device context from directly within the thread

Mark Salsbery
Microsoft MVP - Visual C++

jonsey29847 wrote:

so I need to know how properly allocate memory for an array, the allocation must allow for expansion.