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Open Source Computer Vision Library
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58 lines
1.2 KiB
58 lines
1.2 KiB
15 years ago
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#! /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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