1 dev_open_window(1,1,400,400,'blue',ThisHandle) 2 create_bar_code_model([], [], BarCodeHandle) 3 set_bar_code_param(BarCodeHandle,'element_size_max',8) 4 set_bar_code_param(BarCodeHandle,'check_char','present') 5 set_bar_code_param(BarCodeHandle,'persistence',1) 6 set_bar_code_param(BarCodeHandle,'composite_code','none') 7 set_bar_code_param(BarCodeHandle,'meas_thresh',0.1) 8 set_bar_code_param(BarCodeHandle,'num_scanlines',10) 9 set_bar_code_param(BarCodeHandle,'min_identical_scanlines',2) 10 set_bar_code_param(BarCodeHandle,'max_diff_orient',10) 11 set_bar_code_param(BarCodeHandle,'element_height_min',8) 12 set_bar_code_param(BarCodeHandle,'stop_after_result_num',1) 13 *read_image(img,'C:/Users/IBM_ADMIN/Desktop/Halcon/2.jpg') 14 *get_image_size (img, Width, Height) 15 *dev_set_window_extents (0, 0, Width-1, Height-1) 16 *find_bar_code(img,SymbolRegions,BarCodeHandle,'auto',DecodedataStrings) 17 *get_bar_code_result(BarCodeHandle,'all','decoded_types',DecodedDataTypes) 18 *dev_close_window() 19 * open computer camera 20 open_framegrabber ('DirectShow', 1, 1, 0, 0, 0, 0, 'default', -1, 'gray', -1, 'default', 'default', '0', -1, -1, AcqHandle1) 21 * open another USB camera 22 *open_framegrabber ('DirectShow', 1, 1, 0, 0, 0, 0, 'default', -1, 'gray', -1, 'default', 'default', '1', -1, -1, AcqHandle1) 23 condition := true 24 set_window_param(ThisHandle,'background_color','gray') 25 *grab_image_start(AcqHandle1,-1000) 26 while(condition) 27 *grab_image_async(BarImage,AcqHandle1, -1000) 28 grab_image (BarImage, AcqHandle1) 29 find_bar_code(BarImage,SymbolRegions,BarCodeHandle,'auto',scannString) 30 if(|scannString| >= 1) 31 dev_display(BarImage) 32 disp_message(ThisHandle,scannString,'window',12,12,'blue','false') 33 disp_continue_message(ThisHandle,'black','true') 34 stop() 35 condition := false 36 endif 37 endwhile 38 clear_all_bar_code_models() 39 close_all_framegrabbers() 40 dev_close_window()