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Open Source Computer Vision Library
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57 lines
1.2 KiB
57 lines
1.2 KiB
#! /usr/bin/env python |
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""" |
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This script will test highgui's Get/Set functionality for the trackbar |
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""" |
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# name of this test and it's requirements |
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TESTNAME = "cvGetSetTrackbarPos" |
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REQUIRED = ["cvCreateTrackbar"] |
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# needed for sys.exit(int) and .works file handling |
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import sys |
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import works |
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# check requirements and delete old flag file, if it exists |
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if not works.check_files(REQUIRED,TESTNAME): |
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sys.exit(77) |
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# import the necessary things for OpenCV |
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from highgui import * |
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from cv import * |
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# some definitions |
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win_name = "testing..." |
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bar_name = "foo" |
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# little dummy function as callback for trackbar |
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def dummy(value): |
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pass |
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# create output window |
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cvNamedWindow(win_name,CV_WINDOW_AUTOSIZE) |
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# create our trackbar |
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cvCreateTrackbar( bar_name, win_name, 127, 255, dummy ) |
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# trackbar pos must be 127 |
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if cvGetTrackbarPos( bar_name, win_name ) != 127: |
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print "(ERROR) cvGetTrackbarPos() returned wrong value (!=127)." |
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sys.exit(1) |
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# set the trackbar to new position 255 and compare it |
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cvSetTrackbarPos( bar_name, win_name, 255 ) |
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if cvGetTrackbarPos( bar_name, win_name ) != 255: |
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print "(ERROR) cvSetTrackbarPos() didn't set value correctly (!=255)." |
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sys.exit(1) |
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# create flag file for following tests |
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works.set_file(TESTNAME) |
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# return 0 (success) |
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sys.exit(0)
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