Main.cpp

#include <UIlib.h>
using namespace DuiLib;
class MainWindow : public WindowImplBase
{
protected:
    virtual LPCTSTR GetWindowClassName(void) const { return TEXT("MainWindow"); }
    virtual CDuiString GetSkinFile() { return TEXT("MainWindow.xml"); }
    virtual CDuiString GetSkinFolder() { return TEXT(""); }
};
int WINAPI _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PTSTR pCmdLine, int nCmdShow)
{
    CPaintManagerUI::SetInstance(hInstance);
    MainWindow window;
    window.Create(nullptr, TEXT("主窗口"), UI_WNDSTYLE_FRAME, WS_EX_WINDOWEDGE);
    window.CenterWindow();
    window.ShowModal();
    return 0;
}

MainWindow.xml

<?xml version="1.0" encoding="utf-8"?>
<Window size="350,250">
  <HorizontalLayout bkcolor="#FF12B7F5" />
</Window>

效果图