#include <QApplication>
#include <QLibrary>
#include <QWizard>
#include <qt_windows.h>
#include <cstdlib>

static void error(const char *text)
{
    qDebug("%s", text);
    exit(1);
}

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    typedef HRESULT (WINAPI *PDwmIsCompositionEnabled)(BOOL *pfEnabled);
    typedef HRESULT (WINAPI *PDwmEnableComposition)(UINT uCompositionAction);
    typedef BOOL (WINAPI *PIsThemeActive)();
    PDwmIsCompositionEnabled pDwmIsCompositionEnabled =
            (PDwmIsCompositionEnabled) QLibrary::resolve("dwmapi", "DwmIsCompositionEnabled");
    PDwmEnableComposition pDwmEnableComposition =
            (PDwmEnableComposition) QLibrary::resolve("dwmapi", "DwmEnableComposition");
    PIsThemeActive pIsThemeActive =
            (PIsThemeActive) QLibrary::resolve("uxtheme", "IsThemeActive");

    if (!pDwmIsCompositionEnabled)
        error("DwmIsCompositionEnabled could not be resolved");
    if (!pDwmEnableComposition)
        error("DwmEnableComposition could not be resolved");
    if (!pIsThemeActive)
        error("IsThemeActive could not be resolved");

    BOOL compositionEnabled;

    if (pDwmIsCompositionEnabled(&compositionEnabled) != S_OK)
        error("DwmIsCompositionEnabled() failed");
    if (!compositionEnabled)
        error("This test requires desktop composition to be enabled");
    if (!pIsThemeActive())
        error("This test requires a visual style to be enabled");

    QWizard().show();
    pDwmEnableComposition(0);

    QWizard wizard;
    wizard.show();
    
    return a.exec();
}