工业视觉halcon图形text函数详细介绍

工业视觉halcon图形text函数详细介绍

文本形式的变量可以用于显示一些信息，如几何测量数值，与用户的交互字符串等。
Halcon提供比较全的文本操作函数，
如下
disp_message  disp_text
disp_continue_message
disp_end_of_program_message
disp_text_button

query_font   set_font   get_font
get_font_extents
set_display_font
get_string_extents

write_string   set_tposition
get_tposition
new_line
read_char   read_string

实例
dev_close_window ()
read_image (Image, 'printer_chip/printer_chip_01')
dev_open_window_fit_image (Rim, 0, 0, -1, -1, WindowHandle)
dev_display (Image)

*disp_text
set_display_font (WindowHandle, 16, 'mono', 'true', 'false')
dev_disp_text ('hello', 'image', 12, 12, 'red', ['box'], ['false'])
disp_message (WindowHandle,'gkbc8.com' , 'image', 12, 12, 'red', 'false')
disp_continue_message (WindowHandle, 'black', 'true')
disp_end_of_program_message (WindowHandle, 'black', 'true')
disp_text_button (WindowHandle, 'Text', 'window', 200, 200, 'red', 'green')

dev_clear_window ()
query_font (WindowHandle, Font)
get_font (WindowHandle, Font1)
set_font (WindowHandle, 'Arial-24')
dev_disp_text ('hello', 'image', 12, 12, 'red', ['box'], ['false'])
get_font_extents (WindowHandle, MaxAscent, MaxDescent, MaxWidth, MaxHeight)
get_string_extents (WindowHandle, 'gkbc8.com', Ascent, Descent, Width, Height)

dev_clear_window ()
write_string (WindowHandle, 12)
new_line (WindowHandle)
write_string (WindowHandle, 'gkbc8.com')
new_line (WindowHandle)
get_tposition (WindowHandle, Row, Column)
get_string_extents (WindowHandle, 'gkbc8.com', Ascent, Descent, Width, Height)
set_tposition (WindowHandle, Row+Height, Column+Width*4)
write_string (WindowHandle, 'gkbc8.com')
read_char (WindowHandle, Char, Code)
read_string (WindowHandle, '请输入密码：', 32, OutString)
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