Changing the Color of Edit and Combobox Controls in ATL

Simply follow these steps in order to change the color of the Edit control or Combobox control in ATL.
  1. Add a handler for WM_CTLCOLOREDIT
    MESSAGE_HANDLER(WM_CTLCOLOREDIT, OnCtlColorEdit)
    
  2. Implementation of the handler, return the brush that u want to use to color the control
    LRESULT OnCtlColorEdit(UINT uMsg, 
                           WPARAM wParam, 
                           LPARAM lParam,
                           BOOL& bHandled)
    {
     HDC hdcEdit = (HDC) wParam;    // handle to display context 
     HWND hwndEdit = (HWND) lParam; // handle to static control 
    
     if (( hwndEdit == GetDlgItem(IDC_EDIT) 
     || ( hwndEdit == GetDlgItem(IDC_COMBO))
     {
      // m_hBrush is an instance variable that stores the
      // current Color brush. If this is the first time through
      // we need to create it. The brush is deleted in the destructor
      if ( m_hBrush == NULL )
       m_hBrush = CreateSolidBrush( RGB(255,0,0)
     )
     
      // Get the DC provided and set the appropriate attributes
     
      SetBkMode(hdcEdit, TRANSPARENT );
      SetBkColor(hdcEdit, RGB(255,0,0));
    
      // Return a handle to the brush
      HBRUSH far* hbr = (HBRUSH far*) m_hBrush;
      return ((DWORD) hbr);
     }
     return 0;
    }
    


Comments

  • Changes BkColor and TextColor of 2 different comboboxes edit control

    Posted by Aparna on 08/31/2015 04:34am

    If We have 1 Combobox then We can change Background color and TExtColor easily For Example: case WM_CTLCOLOREDIT: SelectObject((HDC)wParam, hFont); SetTextColor((HDC)wParam, RGB(255, 0, 0)); SetBkColor((HDC) wParam,RGB(255,206, 129)); return (LRESULT) (HBRUSH)CreateSolidBrush(RGB(255,206, 129));

    Reply
Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • Lenovo recommends Windows 8 Pro. "I dropped my laptop getting out of the taxi." This probably sounds familiar to most IT professionals. If your employees are traveling, you know their devices are in for a rough go. Whether it's a trip to the conference room or a convention out of town, any time equipment leaves a user's desk it is at risk of being put into harm's way. Stay connected at all times, whether at the office or on the go, with agile, durable, and flexible devices like the Lenovo® …

  • When individual departments procure cloud service for their own use, they usually don't consider the hazardous organization-wide implications. Read this paper to learn best practices for setting up an internal, IT-based cloud brokerage function that service the entire organization. Find out how this approach enables you to retain top-down visibility and control of network security and manage the impact of cloud traffic on your WAN.

Most Popular Programming Stories

More for Developers

RSS Feeds

Thanks for your registration, follow us on our social networks to keep up-to-date