Excel Add-in Development in C/C++: Applications in ... - F9

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Creating a 32-bit Windows (Win32) DLL Using VC 6.0 or VS. NET 87So far all we’ve done is created a DLL project, written and exported a function andset up the debugger to run Excel. Now we need to create something that accesses thefunction. Later chapters describe how to use Excel’s Add-in Manager and Paste Functionwizard, but for now we’ll just create a simple spreadsheet which calls our function froma VB module.To follow the steps in the next section, you need to run Excel from VC by debuggingthe DLL. (Select Build/Start Debug.../Go or press {F5}.) This enables you to experiment bysetting breakpoints in the DLL code.You can also specify a spreadsheet that Excel is to load whenever you start a debugsession. This example shows the name and location of a test spreadsheet called Get-TimeTest.xls entered into the Program arguments field. (Excel interprets a commandline argument as an auto-load spreadsheet.)Next time Build/Start Debug.../Go is selected, or {F5} is pressed, VC will run Excel andload this test spreadsheet automatically. This is a great time-saver and helps anyone whomight take over this project to see how the DLL was supposed to work.4.10 CREATING A DLL USING VISUAL C++ .NET 2003This section refers to Visual C++ .NET 2003 as VC.NET. Visual Studio .NET 2003 hasthe same menus and dialogs. Section 4.9 on page 83 covers the same steps as this section,but for the Visual C++ 6.0 and Visual Studio C++ 6.0 IDEs, which this section refers toas VC to make the distinction between the two.4.10.1 Creating the empty DLL projectThis example goes step-by-step through the creation of a DLL called NETGetTime.dllwhich is referred to in the following chapter and expanded later on. It will export onefunction that, when called, will return the date and time in an Excel-compatible form tothe nearest second.
88 Excel Add-in Development in C/C++1. Open the Visual C++ .NET IDE which should appear something like this:2. On the New Project dialog that appears, select the Win32 folder.3. Select Win32 Project and enter a name for the project in the Name: text box and selecta location for the project as shown and press OK.
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Excel Add-in Development in C/C++Ap
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Wiley Finance SeriesFor other title
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Copyright © 2005John Wiley & Sons
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viContents2.6.11 Worksheet function
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viiiContents4.11 Accessing DLL func
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xContents8.7.2 Getting the availabl
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xiiContents8.14.6 Trapping a window
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PrefaceThis book is intended to pro
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AcknowledgementsI would like to ack
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2 Excel Add-in Development in C/C++
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10 Excel Add-in Development in C/C+
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Page 57 and 58: 36 Excel Add-in Development in C/C+
Page 96 and 97: 4Creating a 32-bit Windows (Win32)
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Passing Data between Excel and the
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6.8.7 Array (mixed type): xltypeMul
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How you convert it to a C/C++ data
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7Memory Management7.1 EXCEL STACK S
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Table 7.1 Returned xlopers for whic
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Memory Management 165// Excel to fr
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Memory Management 167ret_oper.val.a
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8Accessing Excel FunctionalityUsing
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Accessing Excel Functionality Using
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Table 8.5 When it is safe to call t
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8.5.8 Function help parameter to xl
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An exported command will always be
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Table 8.14 (continued)Accessing Exc
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8.15.2 Displaying text in the statu
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9Miscellaneous Topics9.1 TIMING FUN
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Miscellaneous Topics 287convincing.
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Miscellaneous Topics 289The equival
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Miscellaneous Topics 291Table 9.4 (
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Miscellaneous Topics 2939.2.1 Concl
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Miscellaneous Topics 295// The call
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Miscellaneous Topics 297not covered
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The following code shows how these
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Miscellaneous Topics 301|| (cmd_len
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Miscellaneous Topics 303}if(hr != S
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Miscellaneous Topics 305}// Success
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Miscellaneous Topics 307an incremen
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Miscellaneous Topics 309// Are we l
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Miscellaneous Topics 311// Incremen
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Miscellaneous Topics 313}m_Workshee
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Miscellaneous Topics 315// Not crea
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Miscellaneous Topics 317command xlc
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Miscellaneous Topics 319from an Exc
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Miscellaneous Topics 321function re
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Miscellaneous Topics 323Table 9.7 (
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Miscellaneous Topics 325The decisio
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Miscellaneous Topics 327• m Suspe
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Miscellaneous Topics 329}Sleep(0);}
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Miscellaneous Topics 3319.10.10 Con
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Miscellaneous Topics 333There are s
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336 Excel Add-in Development in C/C
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Web Links and Other ResourcesThere
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Index#pragma pack 62-416-bit softwa
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Index 389access methods 169-80array
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Index 391data types 7, 10-18, 21-3,
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Index 393exports 81-2, 85-7, 95-104
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Index 395libraries 1, 3-4, 75-94, 9
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Index 397optionsdates 363-71pricing
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Index 399toolbars 7, 9, 41-5, 251-2
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Index 401limits 10-12names 35-40, 2
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Index 403memory considerations 142u
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