Tektronix THS 720A Screen Dump Problem

Hi all~~
It is my first time to visit this forum. I have the question about screen dump problem with Tektronix THS 720A.
For Tektronix software, called "WaveStar for Oscilloscopes", connect with RS232 between scope and computer. It can screen-dump the scope screen into the Notesheet.
It like this.
![](upload://t4yyomS18nSAbojeN5CLO8sKpZ6.jpeg)
 
Now, i want to make this same action in the Labview without using ActiveX. That means user click the button to screen dump in the front panel.
 
![](upload://urh3G8epl7orxRRX7ECRE0ehNsW.jpeg)
I read from the Program manual and find that it had the hardcopy command to print the screen copy. Also, i use the MAX to test it command and it works.
 
Actually I have written a LabVIEW programme (in the attachment)for the screendump
![](upload://f1k6CwyIV53YvteKhvKXCdQCgGb.jpeg)
Can anyone suggest some improvements for my programme in order to get screen picture of my THS720A in the front panel?
It is my first time to make this similar setting, i had no idea to make it.
 
Thanks
 
Regrads
Steve

以下為TEKTRONIX 3000B抓取圖形的方法,應該與THS 720A的方法一致,提供給你參考。

我把幾個應該注意的地方標記下來,如下列所述:

PART 1:

1.為USB、GPIB OR RS232,可参考程式設計手冊 。

2.依據不同型號的示波器,所讀回的資料也有所不同,可能幾萬或幾十萬個字元,因此,把所有能讀的都讀回來。

PART 2:

3.將讀回的資料作處理,可是資料當中可能包含一些不是圖形的資料,這會使得成像的圖形在邊緣處有破碎的情形且圖形會產生偏移,因此,

先利用成像的圖形,然後再將此數值由0依序遞增,直到圖形正確為止。(TDS 2000B = 758、TDS 3000B = 1077)

4. & 5.圖形的真實解析度。(TDS 2000B = 320*240、TDS 3000B = 640*480)

6. & 7. & 8.利用VISION將整理過的資料成像。其實也可以用彩色,可是出來的顏色怪怪的,跟實際的差很多,所以,這邊我還是以灰階為主,

然後再將圖形調色到順眼的地步。

PART 1:

![](upload://kv6We42UHMKUj2g5WJ3FPdhiiOb.jpeg)

PART 2:

![](upload://2TwgStAvNxExgma8QamjTBZEZxA.jpeg)

Thanks

Actually, i had solved this problem by increasing the "byte wait time".

Anyway thanks for your help

Regrads

Steve