When compiling the example from MSDN the following error has place: LNK2019 unresolved external symbol reference

Question

Hi. I have a problem with creation of toolbar in Win32 C++ application. I want to reproduce an example from MSDN: https://learn.microsoft.com/en-us/windows/win32/controls/create-toolbars.
Below is source code:

HINSTANCE hInst;  
HIMAGELIST g_hImageList = NULL;  
#define IDM_OPEN 1  
#define IDM_NEW   2  
#define IDM_SAVE   3  
  
HWND CreateSimpleToolbar(HWND hWndParent)  
{  
    // Declare and initialize local constants.  
    const int ImageListID    = 0;  
    const int numButtons   = 3;  
    const int bitmapSize     = 16;  
      
    const DWORD buttonStyles = BTNS_AUTOSIZE;  
  
    // Create the toolbar.  
    HWND hWndToolbar = CreateWindowEx(0, TOOLBARCLASSNAME, NULL,   
                                      WS_CHILD | TBSTYLE_WRAPABLE, 0, 0, 0, 0,   
                                      hWndParent, NULL, g_hInst, NULL);  
          
    if (hWndToolbar == NULL)  
        return NULL;  
  
    // Create the image list.  
    g_hImageList = ImageList_Create(bitmapSize, bitmapSize,   // Dimensions of individual bitmaps.  
                                    ILC_COLOR16 | ILC_MASK,   // Ensures transparent background.  
                                    numButtons, 0);  
  
    // Set the image list.  
    SendMessage(hWndToolbar, TB_SETIMAGELIST,   
                (WPARAM)ImageListID,   
                (LPARAM)g_hImageList);  
  
    // Load the button images.  
    SendMessage(hWndToolbar, TB_LOADIMAGES,   
                (WPARAM)IDB_STD_SMALL_COLOR,   
                (LPARAM)HINST_COMMCTRL);  
  
    // Initialize button info.  
    // IDM_NEW, IDM_OPEN, and IDM_SAVE are application-defined command constants.  
      
    TBBUTTON tbButtons[numButtons] =   
    {  
        { MAKELONG(STD_FILENEW,  ImageListID), IDM_NEW,  TBSTATE_ENABLED, buttonStyles, {0}, 0, (INT_PTR)L"New" },  
        { MAKELONG(STD_FILEOPEN, ImageListID), IDM_OPEN, TBSTATE_ENABLED, buttonStyles, {0}, 0, (INT_PTR)L"Open"},  
        { MAKELONG(STD_FILESAVE, ImageListID), IDM_SAVE, 0,               buttonStyles, {0}, 0, (INT_PTR)L"Save"}  
    };  
  
    // Add buttons.  
    SendMessage(hWndToolbar, TB_BUTTONSTRUCTSIZE, (WPARAM)sizeof(TBBUTTON), 0);  
    SendMessage(hWndToolbar, TB_ADDBUTTONS,       (WPARAM)numButtons,       (LPARAM)&tbButtons);  
  
    // Resize the toolbar, and then show it.  
    SendMessage(hWndToolbar, TB_AUTOSIZE, 0, 0);   
    ShowWindow(hWndToolbar,  TRUE);  
      
    return hWndToolbar;  
}  

But when building the application, I get the following error: LNK2019 unresolved external symbol reference imp__ImageList_Create@20 in function "struct HWND * cdecl CreateToolbar(struct HWND *)" (?CreateToolbar@@YAPAUHWND__@@PAU1@@Z).

Why does it take place? Please help me fix it. Thanks in advance.

Answer 1

Link with Comctl32.lib

You can add at beginning :

#pragma comment (lib, "comctl32")

Answer 2

INITCOMMONCONTROLSEX iccx = { sizeof(iccx) };
iccx.dwICC = ICC_LINK_CLASS;
if (!InitCommonControlsEx(&iccx))
{
return FALSE;
}

Answer 3

    INITCOMMONCONTROLSEX iccx = { sizeof(iccx) };
    iccx.dwICC = ICC_WIN95_CLASSES;
    if (!InitCommonControlsEx(&iccx))
    {
    return FALSE;
    }

Try this.