mirror of
https://github.com/Laex/Delphi-OpenCV.git
synced 2024-11-18 01:05:53 +01:00
101 lines
3.0 KiB
ObjectPascal
101 lines
3.0 KiB
ObjectPascal
(* /*****************************************************************
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// Delphi-OpenCV Demo
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// Copyright (C) 2013 Project Delphi-OpenCV
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// ****************************************************************
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// Contributor:
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// laentir Valetov
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// email:laex@bk.ru
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// ****************************************************************
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// You may retrieve the latest version of this file at the GitHub,
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// located at git://github.com/Laex/Delphi-OpenCV.git
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// ****************************************************************
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// The contents of this file are used with permission, subject to
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// the Mozilla Public License Version 1.1 (the "License"); you may
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// not use this file except in compliance with the License. You may
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// obtain a copy of the License at
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// http://www.mozilla.org/MPL/MPL-1_1Final.html
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//
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// Software distributed under the License is distributed on an
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// "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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// implied. See the License for the specific language governing
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// rights and limitations under the License.
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******************************************************************* *)
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// JCL_DEBUG_EXPERT_GENERATEJDBG OFF
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// JCL_DEBUG_EXPERT_INSERTJDBG OFF
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// JCL_DEBUG_EXPERT_DELETEMAPFILE OFF
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program cv_SetMouseCallback;
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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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highgui_c,
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core_c,
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Core.types_c,
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imgproc_c,
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imgproc.types_c;
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const
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// èìÿ êàðòèíêè
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filename = 'Resource\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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// ðècóåì öåëåóêàçàòåëü
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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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// îáðàáîò÷èê cîáûòèé îò ìûøêè
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procedure myMouseCallback(event: Integer; x: Integer; y: Integer; flags: Integer; 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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// ïîëó÷àåì êàðòèíêó
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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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// îêíî äëÿ îòîáðàæåíèÿ êàðòèíêè
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cvNamedWindow('original', CV_WINDOW_AUTOSIZE);
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// âåøàåì îáðàáîò÷èê ìûøêè
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cvSetMouseCallback('original', myMouseCallback, image);
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while True do
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begin
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// ïîêàçûâàåì êàðòèíêó
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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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// îcâîáîæäàåì ðåcóðcû
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cvReleaseImage(image);
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// óäàëÿåì îêíî
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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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