RIGOL DP832A - Manual (Page 199)

Chapter 4 Programming Demos RIGOL
DP800 Programming Guide 4-11
Visual Basic Programming Demo
The program used in this demo: Visual Basic 6.0
The function realized in this demo: enable the three channels of the power supply and show the colors
of the channels by taking DP831A as an example.
1 Build a standard application program project (Standard EXE) and name it as DP800_Demo_VB.
2 Click the Existing tab of ProjectAdd Module. Search for the visa32.bas file in the include folder
under the NI-VISA installation path and add the file.
3 Add three CommandButton controls to represent CH1, CH2 and CH3 respectively. Add three Text
controls (Label1(0), Label1(1) and Label1(2)) to represent the status of the three channels
respectively (by default, the Text control is gray; when the channel is enabled, it displays the color of
the channel). The layout of the controls is as shown in the figure below.
4 Open the General tab in Project→Project1 Properties and select Form1 in the Startup Object
dropdown box.
5 Double-click CH1 to enter the programming environment. Add the following codes to control CH1, CH2
and CH3. The codes of CH1 are as shown below; the codes of CH2 and CH3 are similar.
Dim defrm As Long
Dim vi As Long
Dim strRes As String * 200
Dim list As Long