opencv/modules/highgui/test/test_gui.cpp

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#include "test_precomp.hpp"
#include "opencv2/highgui.hpp"

#if defined HAVE_GTK || defined HAVE_QT || defined HAVE_WIN32UI || defined HAVE_CARBON || defined HAVE_COCOA

using namespace cv;
using namespace std;

class CV_HighGuiOnlyGuiTest : public cvtest::BaseTest
{
protected:
    void run(int);
};

void Foo(int /*k*/, void* /*z*/) {}

void CV_HighGuiOnlyGuiTest::run( int /*start_from */)
{
    ts->printf(ts->LOG, "GUI 0\n");
    destroyAllWindows();

    ts->printf(ts->LOG, "GUI 1\n");
    namedWindow("Win");

    ts->printf(ts->LOG, "GUI 2\n");
    Mat m(256, 256, CV_8U);
    m = Scalar(128);

    ts->printf(ts->LOG, "GUI 3\n");
    imshow("Win", m);

    ts->printf(ts->LOG, "GUI 4\n");
    int value = 50;

    ts->printf(ts->LOG, "GUI 5\n");
    createTrackbar( "trackbar", "Win", &value, 100, Foo, &value);

    ts->printf(ts->LOG, "GUI 6\n");
    getTrackbarPos( "trackbar", "Win" );

    ts->printf(ts->LOG, "GUI 7\n");
    waitKey(500);

    ts->printf(ts->LOG, "GUI 8\n");
    getWindowImageRect("Win");

    ts->printf(ts->LOG, "GUI 9\n");
    destroyAllWindows();
    ts->set_failed_test_info(cvtest::TS::OK);
}

TEST(Highgui_GUI,    regression) { CV_HighGuiOnlyGuiTest test; test.safe_run(); }

#endif