Windows API对话框不使用资源文件

#include<windows.h>
#include <commctrl.h>

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    // 初始化公共控件库
    INITCOMMONCONTROLSEX iccx;
    iccx.dwSize = sizeof(INITCOMMONCONTROLSEX);
    iccx.dwICC = ICC_STANDARD_CLASSES;
    InitCommonControlsEx(&iccx);

    // 创建对话框模板
    DLGTEMPLATE* pTemplate = (DLGTEMPLATE*)GlobalAlloc(GPTR, 1024);
    pTemplate->style = WS_POPUP | WS_BORDER | WS_CAPTION | DS_CENTER | DS_SETFOREGROUND | DS_MODALFRAME | WS_VISIBLE;
    pTemplate->cdit = 0;
    pTemplate->x = 0;
    pTemplate->y = 0;
    pTemplate->cx = 200;
    pTemplate->cy = 100;
    pTemplate->menu = (UINT)NULL;
    pTemplate->windowClass = (UINT)NULL;
    pTemplate->title = (UINT)NULL;

    // 添加控件
    DLGITEMTEMPLATE* pItemTemplate = (DLGITEMTEMPLATE*)(pTemplate + 1);
    pItemTemplate->style = WS_CHILD | WS_VISIBLE | BS_DEFPUSHBUTTON;
    pItemTemplate->dwExtendedStyle = 0;
    pItemTemplate->x = 50;
    pItemTemplate->y = 10;
    pItemTemplate->cx = 100;
    pItemTemplate->cy = 25;
    pItemTemplate->id = IDOK;
    pItemTemplate->windowClass = (UINT)NULL;
    pItemTemplate->title = (UINT)NULL;
    pTemplate->cdit = 1;

    // 创建对话框
    HWND hwnd = CreateDialogIndirect(hInstance, pTemplate, NULL, NULL);
    GlobalFree(pTemplate);

    // 显示对话框
    ShowWindow(hwnd, nCmdShow);

    // 消息循环
    MSG msg;
    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }

    return 0;
}