C语言WM_COMMAND接收不到控件消息，只显示窗口不显示对话框？

#include<windows.h>
#include<stdio.h>
#include"resource.h"
static HINSTANCE hInst;
BOOL CALLBACK DlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)
    {
    case WM_INITDIALOG:
        return TRUE;
    case WM_COMMAND:
        switch (LOWORD(wParam))
        {
        case IDOK:
        case IDCANCEL:
            EndDialog(hDlg, 0);
            return TRUE;
        }
        break;
    }
    return FALSE;
}
void Dialog(HWND hWnd,UINT msg,WPARAM wParam,LPARAM lParam)
{
   
    switch (LOWORD(wParam))
    {
    case IDD_DIALOG1:
        DialogBox(hInst, (char*)IDD_DIALOG1, hWnd, DlgProc);
        
        break;
    }
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT msgID, WPARAM wParam, LPARAM lParam)
{
   
    switch (msgID)
    {
    case WM_COMMAND:
        Dialog(hWnd,msgID,wParam,lParam);
        break;
    case WM_CREATE:
        hInst = ((LPCREATESTRUCT)lParam)->hInstance;
        break;
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
    }
    return DefWindowProc(hWnd, msgID, wParam, lParam);
}
int main()
{
    {
        HINSTANCE hInstance = GetModuleHandle(NULL);

        WNDCLASS wc;
        wc.cbClsExtra = 0;
        wc.cbWndExtra = 0;
        wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 3);
        wc.hCursor = NULL;
        wc.hIcon = NULL;
        wc.hInstance = hInstance;
        wc.lpfnWndProc = WndProc;
        wc.lpszClassName = "main";
        wc.lpszMenuName = NULL;
        wc.style = CS_HREDRAW | CS_VREDRAW;
        RegisterClass(&wc);
        HWND hWnd = CreateWindowEx(0, "main", "Mordem Scanning", WS_OVERLAPPEDWINDOW, 100, 100, 900, 900, NULL, NULL, hInstance, NULL);
        
        ShowWindow(hWnd, SW_SHOW);
        UpdateWindow(hWnd);
        MSG nMsg = { 0 };
        while (1)
        {
            if (PeekMessage(&nMsg, hWnd, 0, 0, PM_NOREMOVE))
            {
                if (GetMessage(&nMsg, hWnd, 0, 0))
                {
                    TranslateMessage(&nMsg);
                    DispatchMessage(&nMsg);
                }
                else
                {
                    return 0;
                }
            }
            else
            {

            }
        }
    }
}