Tektronix Technical Forums are maintained by community involvement. Feel free to post questions or respond to questions by other members. Should you require a time-sensitive answer, please contact your local Tektronix support center here.
I have a MSO7104A device that I control with LAN. I would like to transfer print screen from oscilloscope to my local computer by LAN connection.
I use the VISA api to read/write data by C/C++ (tekVisa). Until now, I have not been able to find relevent commands to perform the transfer. There is an interesting note "How To Save and Transfer a Screenshot from the 5 or 6 Series MSO" dedicated to the MSO 5 and 6. But I have the 7 I guess. Is there an equivalent note for my oscilloscope. Indeed, the SCPI commands are different and I was not able to use the same commands and to find the corresponding one in the MSO7104A documentation.
Is it possible to perform such a transfer and how ? Is there an existing piece of code ? I look for the way to read screen - by LAN.
Thanks for your reply. I apologize to answer so late but i cannot work on the device full time and I tried yesterday.
I considered all the solutions that you gave me. I must develop the soft in C/C++ so I dit not try in python.
For the two examples, many commands proposed are not taken into account by MSO7104A. For example, the FILESystem:READFile is not understood. (oscilloscope displays 'undefined header') and HARDCopy:PORT FILE does not exist. It is the same problem with the second topic.
Finally, I tried the example in the documentation.
With no success, i tried :
/* IMAGE_TRANSFER - In this example we will query for the image
* data with ":DISPLAY:DATA?" to read the data and save the data
* to the file "image.dat" which you can then send to a printer.
viSetAttribute(vi, VI_ATTR_TMO_VALUE, 30000);
printf("Transferring image to c:\\scope\\data\\screen.bmp\n");
img_size = IMG_SIZE;
viQueryf(vi, ":DISPLAY:DATA? BMP8bit, SCREEN, COLOR\n", "%#b\n",
printf("Read display data query (%d bytes).\n", img_size);
/* Write image data to file. */
fp = fopen ("c:\\scope\\data\\screen.bmp", "wb");
img_size = fwrite(image_data, sizeof(unsigned char), img_size, fp);
printf("Wrote image data (%d bytes) to file.\n", img_size);
viSetAttribute(vi, VI_ATTR_TMO_VALUE, 5000);
With that, I have a file with data but when i try to open it, data format seems to be not correct and viewer displays an error. Is there a trick ? Then oscilloscope displays a remote action (the print screen) and freezes. It is strange.
Thanks for the reply.
But I have a doubt. The oscilloscope is MSO7104A from Agilent InfiniiVision series. There is no window interface, excepted if I missed it. Therefore, I have not way to set a shared directory.
By the way, is a usb drive the only drive accepted by the MSO7104A ?
I thank for your reply. Indeed, it is not a tektronix scope. I apologize. I was confused because the series name is the same than Tektronix (MSO).
Now, i should close the post but four you, should i mark it as solved or not ?
Who is online
Users browsing this forum: No registered users and 4 guests