RIGOL
Programming Guide for DS1000E, DS1000D Series
3-12
Example 2: Read the waveform data
This example shows you how to create a Demo to read the waveform data.
Open Visual Basic 6.0, take the following steps:
1.
Create a
Standard EXE
project and copy the Dynamic Link Library
RigolTMCUsb_UI.dll
from
Demo files
into the new project for easier use.
2.
Named Form1 “
Demo
”. Then add two
Commandbuttons
(CH1 and CH2) and
a
PictureBox
for showing the waveform data about CH1 and CH2, please see
the figure below:
3.
Project
→
Add Module, create a
Module
for declaring the global variable
rcv_buffer
as follows:
Global rcv_buffer(10240) As Byte
Note:
For the waveform data returned from the oscilloscope are too much to
save, please use this buffer.
4.
Enter into the programming environment, then, quote the functions
(
ReadUSB,WriteUSB,GetDeviceNum
) in the Dynamic Link Library
RigolTMCUsb_UI.dll
and add the following codes in the area of project code:
Private Declare Function ReadUSB Lib "RigolTMCUsb_UI.dll" (ByVal Index As
Long, ByVal lpszLength As Long, ByVal lpszBuffer As Long) As Boolean
Private Declare Function WriteUSB Lib "RigolTMCUsb_UI.dll" (ByVal Index As
Long, ByVal msgid As Long, ByVal tag As Long, ByVal length As Long, ByVal
