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QuestionHow to send a text file from C to java and receive the same text file from java to C Pin
venkat28vk18-Aug-15 20:57
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AnswerRe: How to send a text file from C to java and receive the same text file from java to C Pin
Richard MacCutchan18-Aug-15 21:53
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QuestionRe: How to send a text file from C to java and receive the same text file from java to C Pin
David Crow19-Aug-15 5:24
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AnswerRe: How to send a text file from C to java and receive the same text file from java to C Pin
ThatsAlok20-Aug-15 0:23
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GeneralOT Pin
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GeneralRe: OT Pin
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GeneralRe: OT Pin
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QuestionCMFCToolBarComboBoxButton::GetByCmd returns NULL Pin
joliet17-Aug-15 20:26
Memberjoliet17-Aug-15 20:26 
I created a CMFCToolBarComboBoxButton in a CMFCToolBar as following:
afx_msg LRESULT CMainFrame::OnToolbarReset(WPARAM wp, LPARAM lp)
{
    UINT uiToolBarId = (UINT) wp;
    if (uiToolBarId == IDR_TOOLBAR_FILES)
    {
        CMFCToolBarComboBoxButton omboButton1(IDC_SRC_PRO_LIST, GetCmdMgr ()->GetCmdImage(IDC_SRC_PRO_LIST, FALSE), CBS_DROPDOWNLIST);
	
        comboButton1.EnableWindow(FALSE);
        comboButton1.SetCenterVert();
        comboButton1.SetDropDownHeight(200);
        comboButton1.SetFlatMode();
        m_wndFilesBar.ReplaceButton (IDC_SRC_PRO_LIST, comboButton1);
     }
}

It runs well.
But when I want to add some content into it from another thread.I defined a function:
int CMainFrame::CBAddItem(LPCTSTR lpszItem, DWORD_PTR dwData)
{
    int r = -1;
    CMFCToolBarComboBoxButton* pSrcCombo = CMFCToolBarComboBoxButton::GetByCmd (IDC_SRC_PRO_LIST);
    if(pSrcCombo)
    {
        r = pSrcCombo->AddItem(lpszItem, dwData);
    }
    return r;
}

The function CMFCToolBarComboBoxButton::GetByCmd always return NULL. And I traced this function, found:

int __stdcall CMFCToolBar::GetCommandButtons(UINT uiCmd, CObList& listButtons)
{
    .....	
    for (POSITION posTlb = afxAllToolBars.GetHeadPosition(); posTlb != NULL;)
    {
        CMFCToolBar* pToolBar = (CMFCToolBar*) afxAllToolBars.GetNext(posTlb);
        ENSURE(pToolBar != NULL);

        if (CWnd::FromHandlePermanent(pToolBar->m_hWnd) != NULL)

CWnd::FromHandlePermanent(pToolBar->m_hWnd) always return NULL.
So why?
AnswerRe: CMFCToolBarComboBoxButton::GetByCmd returns NULL Pin
Jochen Arndt17-Aug-15 20:59
professionalJochen Arndt17-Aug-15 20:59 
QuestionAdjust paper size Pin
Erich Ruth17-Aug-15 10:02
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AnswerRe: Adjust paper size Pin
Kenneth Walters17-Aug-15 11:09
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QuestionWindows 10 & WM_QUERY_ENDSESSION/WM_ENDSESSION Pin
Peter Weyzen17-Aug-15 4:51
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Questionc++ Qt or C# or JAVA !! Pin
Dreamer_X15-Aug-15 3:51
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AnswerRe: c++ Qt or C# or JAVA !! Pin
OriginalGriff15-Aug-15 3:54
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AnswerRe: c++ Qt or C# or JAVA !! Pin
ThatsAlok20-Aug-15 0:24
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QuestionFirst button of toolbar control get activated after another button get executed Pin
Amrit Agr14-Aug-15 1:35
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QuestionCheckbox: SetFocus() doesn't draw broken rectangle around it Pin
Donguy197613-Aug-15 13:39
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AnswerRe: Checkbox: SetFocus() doesn't draw broken rectangle around it Pin
Arthur V. Ratz13-Aug-15 19:13
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QuestionLearning C++ Pin
Kevin Marois13-Aug-15 11:12
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AnswerRe: Learning C++ Pin
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GeneralRe: Learning C++ Pin
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Nitin K. Kawale17-Aug-15 1:55
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QuestionURLDownloadToFile stopped working on Windows 10 Pin
DavidBaird12-Aug-15 13:18
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SuggestionRe: URLDownloadToFile stopped working on Windows 10 Pin
Ujesh Mohanan13-Aug-15 3:30
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