Description:
OLE2, COM and DDE programming.
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018 Humingbird GPS 01802
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============================== ========= Get A GPS Today At A Low Price!! [link] ============================== ========= GPS Devices [link] ============================== ========= 2X[k \p\)Q\]wCIm @4n&
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: AsdGraph3D Excel Addin v1.2
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J & L is pleased to announce the availability of AsdGraph3D Excel Addin v1.2. [link] This new version adds: - silky smooth rotation with an ArcBall interface, - an option to plot data as paired line segments and - support for color attributes for individual data points... more »
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CoCreateInstance vs. new
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In a code review, I encountered a method that is supposed to create and return a COM interface. In the implementation of this method, the author used the 'new' operator on the C++ class that implements the COM interface (this C++ class is in the same cpp file and DLL). Then, the author called AddRef, and returned the class instance from this... more »
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OLE Design Architecture
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Hi All, I am a newbie to OLE technology and started up with [link] in which the author presents the statement "Anybody who knows C++ can do it with their eyes closed. So why can't you do the same in OLE? Here comes the Flaw. You have to be able to obtain the IBar interface from the IFoo... more »
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AsdGraph3D Excel Addin v1.0
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J & L Associates is pleased to announce the availability of AsdGraph3D Excel Addin version 1.0. AsdGraph3D is an OpenGL-based Excel Addin that plots 3D points, lines, surfaces or water-tight solids directly from user-specified cell ranges (as 3D coordinates) within MS Excel worksheets (from one or several open... more »
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Can't get OLE interface
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Hi. I am trying to insert an image into a RichEditCtrl, and was following the code provided at MSDN KB 220844. I seem to be getting stuck right at the first step. The assert following the SendMessage always fails : ::SendMessage(m_ctlRichText.m_ hWnd, EM_GETOLEINTERFACE, 0, (LPARAM)&m_pRichEditOle);... more »
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Is TreatAs a good solution for my situation?
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Hi All. I'm a delphi developer and I'm developing a com-based framework. I've a base server, named "commonserver". In this server I've 6 com interfaces used by a LOT of com servers in my framework. So, each time I change something in my commonserver, I MUST rebuild all com servers.. Because this task is too long, I'm searching some solution or... more »
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How to extract char from VT_BSTR?
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Hi, I have an OPC client. I used a server to send value to the OPC client whereby it detects the value. The OPC client is able to detect the value as a VT_BSTR. The function which detects the value as a VT_BSTR has VARIANT* pValue as a parameter. When this pValue is a VT_BSTR type, I have trouble extracting the... more »
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