mirror of
https://github.com/Laex/Delphi-OpenCV.git
synced 2024-11-16 08:15:52 +01:00
75 lines
1.8 KiB
ObjectPascal
75 lines
1.8 KiB
ObjectPascal
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program MouseCallback;
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{$APPTYPE CONSOLE}
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{$R *.res}
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uses
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System.SysUtils,
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Core.types_c in '..\..\include\<5C>ore\Core.types_c.pas',
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core_c in '..\..\include\<5C>ore\core_c.pas',
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highgui_c in '..\..\include\highgui\highgui_c.pas';
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Const
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// <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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filename = 'opencv_logo_with_text.png';
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Var
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image: PIplImage = nil;
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c: Integer;
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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procedure drawTarget(img: PIplImage; x, y, radius: Integer); cdecl;
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begin
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cvCircle(img, cvPoint(x, y), radius, CV_RGB(250, 0, 0), 1, 8);
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cvLine(img, cvPoint(x - radius div 2, y - radius div 2), cvPoint(x + radius div 2, y + radius div 2),
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CV_RGB(250, 0, 0), 1, 8);
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cvLine(img, cvPoint(x - radius div 2, y + radius div 2), cvPoint(x + radius div 2, y - radius div 2),
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CV_RGB(250, 0, 0), 1, 8);
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end;
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD>
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procedure myMouseCallback(event: Integer; x: Integer; y: Integer; flags: Integer;
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param: Pointer); cdecl;
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Var
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img: PIplImage;
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begin
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img := PIplImage(param);
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if event = CV_EVENT_LBUTTONDOWN then
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begin
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Writeln(Format('%d x %d', [x, y]));
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drawTarget(img, x, y, 10);
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end;
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end;
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begin
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try
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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image := cvLoadImage(filename, 1);
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Writeln('[i] image: ', filename);
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if not Assigned(image) then
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Halt;
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// <20><><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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cvNamedWindow('original', CV_WINDOW_AUTOSIZE);
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
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cvSetMouseCallback('original', myMouseCallback, image);
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while True do
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begin
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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cvShowImage('original', image);
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c := cvWaitKey(33);
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if (c = 27) then
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break;
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end;
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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cvReleaseImage(image);
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
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cvDestroyWindow('original');
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except
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on E: Exception do
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Writeln(E.ClassName, ': ', E.Message);
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end;
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end.
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