halcon连续采集图像

dev_close_window()
dev_update_window('off')
create_bar_code_model ([], [], BarCodeHandle)
dev_open_window (0, 0, 1400, 1200, 'black', WindowHandle)
dev_set_line_width(10)
dev_set_draw ('margin')
* Image Acquisition 01: Code generated by Image Acquisition 01
open_framegrabber ('DahengCAM', 1, 1, 0, 0, 0, 0, 'interlaced', 8, 'rgb', -1, 'false', 'SV-xxxx', '1', 1, -1, AcqHandle)
grab_image_start (AcqHandle, -1)
while (true)
grab_image_async (Image, AcqHandle, -1)
* Image Acquisition 01: Do something
find_bar_code (Image, SymbolRegions, BarCodeHandle, 'Code 128', DecodedDataStrings)
dev_display (Image)
dev_display (SymbolRegions)
if(|DecodedDataStrings|>0)
smallest_rectangle1 (SymbolRegions, Row1, Column1, Row2, Column2)
count_obj (SymbolRegions, Number)
for Index:=0 to Number-1 by 1
set_tposition (WindowHandle,Row1[Index]-20, Column1[Index]+20)
write_string (WindowHandle, DecodedDataStrings[Index])
endfor
endif

endwhile
close_framegrabber (AcqHandle)
clear_bar_code_model (BarCodeHandle)