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VC中使用Measurement Studio ActiveX 控件时产生的编译错误 在VC（MFC）中使用Measurement Studio ActiveX 用户控件，当为控件绑定一个成员变量时， 向导将生成一些封装代码并创建该变量，但是，编译的时候，会出现以下错误： c:\CtrlDialog4\graph.h(748): error C2061: syntax error : identifier 'CWAnnotation' c:\CtrlDialog4\graph.h(578): URL: http://digital.ni.com/public.nsf/allkb/52CE71BA5135BB13862574C80033E1F1

How Do I Enable/Disable Dithering on My DAQ Device Using Measurement Studio ActiveX Objects? I want to enable or disable dithering on my data acquisition (DAQ) device using Measurement Studio ActiveX Objects, but I cannot find a property or method to allow me to do this. How can I enable or disable dithering? URL: http://digital.ni.com/public.nsf/allkb/7AF8DD47475EFB3386256ECF006A948F

Measurement Studio 6.0 Graph Annotations Do Not Appear at Runtime When using the Measurement Studio 6.0 CWGraph ActiveX control in my Microsoft Visual C++ 6.0 application with the CNiGraph wrapper class, the graph annotations that I create at design time (or programmatically create at runtime) do not appear when my application runs. How can I correct this URL: http://digital.ni.com/public.nsf/allkb/4ED727B6DFC9347986256E940024A9F2

Why Does the Visual C++ Reference for the CWUI or CW3DGraph ActiveX Controls Break after I Install Newer Controls in Measurement Studio 6.0? The CWUI or CW3DGraph ActiveX controls that are version 7.0.0.344 or higher have broken the Visual C++ help on my machine with Measurement Studio 6.0. The Visual C++ help breaks after I perform the following installation steps:Install Measurement Studio 6.0Install LabVIEW 7.1 or URL: http://digital.ni.com/public.nsf/allkb/DE83A8897804055A86256E7700286D12

The OnDataUpdated Event of the CWDataSocket ActiveX Control Does Not Occur When you use a CWDataSocket ActiveX control in Visual Basic 6.0 cwdsRead access mode, if you call the CWDataSocket.Update function and then display a message box, the event is lost and the event handler is not called. Is there a way around this behavior? URL: http://digital.ni.com/public.nsf/allkb/1F9F6C3B1036E27686256E6A005A86E8

GPIB and Serial ActiveX Control Parsers Interpret Some Negative Numbers as Positive Parsers in the GPIB and Serial ActiveX controls do not correctly interpret negative numbers that do not have at least one digit to the left of the decimal point. For example:Input String Parser URL: http://digital.ni.com/public.nsf/allkb/3455D30221F9B8D186256E5F005CBA62

Patch for Measurement Studio 6.0 ActiveX Controls Problem: How do I update my Measurement Studio 6.0 ActiveX controls? Solution: The Measurement Studio 6.0 Updater will install National Instruments ActiveX controls version 7.x which contain fixes to bugs found in version 6.x. National Instruments recommends that Measurement Studio 6. URL: http://digital.ni.com/public.nsf/allkb/5AC21C11CA9D9B1286256E4C0079D690

Installing Measurement Studio 7.0 Over Measurement Studio 6.0 Replaces the DataSocket Release License with Beta License Measurement Studio 7.0 installs the beta license for DataSocket instead of the release license. When I try to use DataSocket in Visual Basic, I receive an evaluation message and the control behaves as an evaluation control. How can this issue be corrected? URL: http://digital.ni.com/public.nsf/allkb/34ACD0B40333798E86256E3B0059F6F0

Extracting Data from Acquisition using CWDAQ in Microsoft Visual C++ 6.0 I'm using the CWDAQ controls in Microsoft Visual Studio 6.0 with the Classwizard generated wrappers. When doing analog input, I'm trying to extract the array of data from the VARIANT FAR* pointer returned by one of the events. How should I do this? URL: http://digital.ni.com/public.nsf/allkb/2E34FFBB4891BAC486256E360077C920

Dynamically Add ActiveX Controls that Require Run Time Licenses in Visual C# I am using the Measurement Studio ActiveX controls to develop in Visual Basic.NET or Visaul C#. I need to add run time license information for dynamically added controls. How should I do this? URL: http://digital.ni.com/public.nsf/allkb/666B71FE6811D14D86256E2E00502D3F