asked on

Change ICON of Picture Control

I create a ATL dialog and put a pitcure control, IDC_TESTICON.

I try to put system icon in this pitcure control but nothing changed.

Do I miss something?

LRESULT OnInitDialog(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
   CAxDialogImpl<CppInvalidRecipientsDlg>::OnInitDialog(uMsg, wParam, lParam, bHandled);
 
    // Centres the window relative to the parent window.
    CenterWindow();
 
    BringWindowToTop();
 
    if (::GetParent(m_hWnd) == NULL)
    {
      ::ShowWindow(m_hWnd, SW_MINIMIZE);
      ::ShowWindow(m_hWnd, SW_RESTORE);
    }
 
    // nothing change in TESTICON
    GetDlgItem(TESTICON).SetIcon(::LoadIcon(NULL, IDI_INFORMATION));
 
    return 1;  // Let the system set the focus
}

Open in new window

pgnatyuk

Just in case - add UpdateWindow or Invalidate.
You actually redraw the window here (or deactivate and then activate):
if (::GetParent(m_hWnd) == NULL)
{
::ShowWindow(m_hWnd, SW_MINIMIZE);
::ShowWindow(m_hWnd, SW_RESTORE);
}
and then load the icon. why?

blancx

ASKER

Regarding the code you mention, It is just the testing code that I forgot to remove.

I have tried to put UpdateWindow or Invalidate function at the end of OnInitDialog(). Nothing changed.

pgnatyuk

So check that LoadIcon brings the icon for you. You can just draw the icon in the client area from OnPaint.
Check that your dialog has the style to redraw the child windows. Check the control

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pgnatyuk

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blancx

ASKER

I think it is a solution but I can't use CStatic in my ATL dialog.
There are link errors when I try to include "Afxwin.h".

In order to minimize the side effect, I send STM_SETICON via SendMessage(). It also change the icon.