Manually programmed WinForm dialog box compile error

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C++

Win32

WinForms

Hey, guys. I'm VERY new to programming windows manually and I'm stuck on this problem. I'm trying to follow this tutorial: http://www.winprog.org/tutorial/dialogs.html[^]

The program window came up fine until I tried to add the dialog box. The dialog box uses "menures.rc and menures.h". I included the menures header in the main file, and that stopped the "undeclared" errors. I guess now I need to declare the "IDD_ABOUT" and "ID_HELP_ABOUT" in my main function, or something. But, I have no idea how. Thanks in advance for the help.

The error is: expected primary-expression before '[symbol here]'
I put notes next to where the error occurs.

MAIN.CPP (Not the full code, so let me know if more is required)

// Step 4: the Window Procedure
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    switch(msg)
    {
        case WM_CREATE:
        {
        HMENU hMenu, hSubMenu;
        HICON hIcon, hIconSm;

        hMenu = CreateMenu();

        hSubMenu = CreatePopupMenu();
        AppendMenu(hSubMenu, MF_STRING, ID_FILE_EXIT, "E&xit");  //ERROR HERE: expected primary-expression before ','
        AppendMenu(hMenu, MF_STRING | MF_POPUP, (UINT)hSubMenu, "&File");

        hSubMenu = CreatePopupMenu();
        AppendMenu(hSubMenu, MF_STRING, ID_STUFF_GO, "&Go");  //SAME ERROR AS ABOVE HERE
        AppendMenu(hMenu, MF_STRING | MF_POPUP, (UINT)hSubMenu, "&Stuff");

        SetMenu(hwnd, hMenu);


        hIcon = (HICON)LoadImage(NULL, "Ufo.ico", IMAGE_ICON, 32, 32, LR_LOADFROMFILE);
        if(hIcon)
            SendMessage(hwnd, WM_SETICON, ICON_BIG, (LPARAM)hIcon);
        else
            MessageBox(hwnd, "Could not load large icon!", "Error", MB_OK | MB_ICONERROR);

        hIconSm = (HICON)LoadImage(NULL, "Ufo.ico", IMAGE_ICON, 16, 16, LR_LOADFROMFILE);
        if(hIconSm)
            SendMessage(hwnd, WM_SETICON, ICON_SMALL, (LPARAM)hIconSm);
        else
            MessageBox(hwnd, "Could not load small icon!", "Error", MB_OK | MB_ICONERROR);
            }
        break;
        
        case WM_COMMAND:
            switch(LOWORD(wParam))
        {
              case ID_HELP_ABOUT:   //ERROR HERE: expected primary-expression before ':'
            {
           int ret = DialogBox(GetModuleHandle(NULL),  //ERROR HERE: expected primary-expression before ')'  
              MAKEINTRESOURCE(IDD_ABOUT), hwnd, AboutDlgProc);
           if(ret == IDOK){
              MessageBox(hwnd, "Dialog exited with IDOK.", "Notice",
                    MB_OK | MB_ICONINFORMATION);
            }
            if(ret == IDCANCEL){
                MessageBox(hwnd, "Dialog exited with IDCANCEL.", "Notice",
                    MB_OK | MB_ICONINFORMATION);
            }
            else if(ret == -1){
                MessageBox(hwnd, "Dialog failed!", "Error",
                    MB_OK | MB_ICONINFORMATION);
            }
        }
        break;    
                case ID_FILE_EXIT:  //SAME ERROR AS ABOVE HERE

                break;
                case ID_STUFF_GO:  //ERROR HERE: expected primary-expression before ':'
               DialogBox(GetModuleHandle(NULL), MAKEINTRESOURCE(IDD_ABOUT), hwnd, AboutDlgProc);  //ERROR HERE: expected primary-expression before ')'
                break;
            }
        
        case WM_LBUTTONDOWN:
        {
             char szFileName[MAX_PATH];
             HINSTANCE hInstance = GetModuleHandle(NULL);
             
             GetModuleFileName(hInstance, szFileName, MAX_PATH);
             MessageBox(hwnd, szFileName, "This program is:", MB_OK | MB_ICONINFORMATION);
        }
        case WM_CLOSE:
            DestroyWindow(hwnd);
        break;
        
        case WM_DESTROY:
            PostQuitMessage(0);
        break;
        
        default:
            return DefWindowProc(hwnd, msg, wParam, lParam);
    }
    return 0;
}

RESOURCES.H

#define IDR_MYMENU
#define IDI_MYICON
#define ID_FILE_EXIT
#define ID_STUFF_GO

RESOURCES.RC

#include "resources.h"
IDR_MYMENU MENU
BEGIN
    POPUP "&File"
    BEGIN
        MENUITEM "E&xit", ID_FILE_EXIT
    END
    POPUP "&Stuff"
    BEGIN
        MENUITEM "&Go", ID_STUFF_GO
        MENUITEM "G&o somewhere else", 0, GRAYED
    END
END
IDI_MYICON ICON "menu_one.ico"

MENURES.H

#define IDD_ABOUT
#define ID_HELP_ABOUT

MENURES.RC

#include "menures.h"

IDD_ABOUT DIALOG DISCARDABLE  0, 0, 239, 66
STYLE DS_MODALFRAME | WS_POPUP | WS_CAPTION | WS_SYSMENU
CAPTION "My About Box"
FONT 8, "MS Sans Serif"
BEGIN
    DEFPUSHBUTTON   "&OK",IDOK,174,18,50,14
    PUSHBUTTON      "&Cancel",IDCANCEL,174,35,50,14
    GROUPBOX        "About this program...",IDC_STATIC,7,7,225,52
    CTEXT           "An example program showing how to use Dialog Boxes\r\n\r\nby theForger",
                    IDC_STATIC,16,18,144,33
END