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212 Agilent InfiniiVision 5000 Series Oscilloscopes Programmer's Guide

5 Commands by Subsystem

Return Format <display data><NL>

<display data> ::= binary block data in IEEE-488.2 # format.

See Also • "Introduction to :DISPlay Commands" on page 208

• ":DISPlay:SOURce" on page 216

• ":HARDcopy:INKSaver" on page 251

• ":MERGe" on page 140

• ":PRINt" on page 155

• "*RCL (Recall)" on page 110

• "*SAV (Save)" on page 114

• ":VIEW" on page 162

Example Code

' IMAGE_TRANSFER - In this example, we will query for the image data

' with ":DISPLAY:DATA?", read the data, and then save it to a file.

Dim byteData() As Byte

myScope.IO.Timeout = 15000

myScope.WriteString ":DISPLAY:DATA? BMP, SCREEN, COLOR"

byteData = myScope.ReadIEEEBlock(BinaryType_UI1)

' Output display data to a file:

strPath = "c:\scope\data\screen.bmp"

' Remove file if it exists.

If Len(Dir(strPath)) Then

Kill strPath

End If

Close #1 ' If #1 is open, close it.

Open strPath For Binary Access Write Lock Write As #1 ' Open file f

or output.

Put #1, , byteData ' Write data.

Close #1 ' Close file.

myScope.IO.Timeout = 5000

Example program from the start: "VISA COM Example in Visual Basic" on

page 744

NOTE

If the format is TIFF, the only valid value area parameter is GRATicule, and the only valid

palette parameter is MONOchrome.

If the format is something other than TIFF, the only valid area parameter is SCReen, and the

only valid values for palette are GRAYscale or COLor.

Agilent Technologies InfiniiVision 5000 Series Programmer's Guide

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