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1 Contributor • Microsoft Visual Basic for Applications (VBA) is the version of Visual Basic that ships with Microsoft Office. In Microsoft Office 2010, VBA includes language features that enable VBA code to run correctly in both 32-bit and 64-bit environments. Note By default, Office 2010 installs the 32-bit version. You must explicitly choose to install the 64-bit version during setup.

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Running VBA code that was written before the Office 2010 release (VBA version 6 and earlier) on a 64-bit platform can result in errors if the code is not modified to run in 64-bit versions of Office. Errors will result because VBA version 6 and earlier implicitly targets 32-bit platforms and typically contains that call into the Windows API using 32-bit data types for pointers and handles.

Because VBA version 6 and earlier does not have a specific data type for pointers or handles, it uses the Long data type, which is a 32-bit 4-byte data type, to reference pointers and handles. Pointers and handles in 64-bit environments are 8-byte 64-bit quantities.

These 64-bit quantities cannot be held in 32-bit data types. Note You only need to modify VBA code if it runs in the 64-bit version of Microsoft Office.

The problem with running legacy VBA code in 64-bit Office is that trying to load 64-bits into a 32-bit data type truncates the 64-bit quantity. This can result in memory overruns, unexpected results in your code, and possible application failure.

To address this problem and enable VBA code to work correctly in both 32-bit and 64-bit environments, several language features have been added to VBA. The table at the bottom of this document summarizes the new VBA language features. Three important additions are the type alias, the data type, and the keyword. Battleship Tamil Dubbed Full Movie.

• - VBA now includes a variable type alias: LongPtr. The actual data type that LongPtr resolves to depends on the version of Office that it is running in: LongPtr resolves to Long in 32-bit versions of Office, and LongPtr resolves to LongLong in 64-bit versions of Office. Use LongPtr for pointers and handles. • - The LongLong data type is a signed 64-bit integer that is only available on 64-bit versions of Office. Use LongLong for 64-bit integrals. Conversion functions must be used to explicitly assign LongLong (including LongPtr on 64-bit platforms) to smaller integral types. Driver Usb To Parallel Ieee 1284.

Implicit conversions of LongLong to smaller integrals are not allowed. • - The PtrSafe keyword asserts that a Declare statement is safe to run in 64-bit versions of Office. All must now include the PtrSafe keyword when running in 64-bit versions of Office. It is important to understand that simply adding the PtrSafe keyword to a Declare statement only signifies the Declare statement explicitly targets 64-bits, all data types within the statement that need to store 64-bits (including return values and parameters) must still be modified to hold 64-bit quantities. Note Declare statements with the keyword is the recommended syntax. Declare statements that include PtrSafe work correctly in the VBA7 development environment on both 32-bit and 64-bit platforms. To ensure backwards compatibility in VBA7 and earlier use the following construct: #If VBA7 Then Declare PtrSafe Sub.

#Else Declare Sub. #EndIf Consider the following Declare statement examples. Running the unmodified Declare statement in 64-bit versions of Office will result in an error indicating the Declare statement does not include the PtrSafe qualifier. The modified VBA example contains the PtrSafe qualifier, but notice that the return value (a pointer to the active window) returns a Long data type. On 64-bit Office, this is incorrect because the pointer needs to be 64-bits. The PtrSafe qualifier tells the compiler the Declare statement is targeting 64-bits, so the statement executes without error. But because the return value has not been updated to a 64-bit data type, the return value is truncated resulting in an incorrect value returned.

Unmodified legacy VBA Declare statement example: Declare Function GetActiveWindow Lib 'user32' () As Long VBA Declare statement example modified to include the PtrSafe qualifier but still using a 32-bit return value: Declare PtrSafe Function GetActiveWindow Lib 'user32' () As Long To reiterate, you must modify the Declare statement to include the PtrSafe qualifier and you must update any variables within the statement that need to hold 64-bit quantities so that the variables use 64-bit data types. VBA Declare statement example modified to include the PtrSafe keyword and updated to use the proper 64-bit ( LongPtr ) data type: Declare PtrSafe Function GetActiveWindow Lib 'user32' () As LongPtr In summary, for code to work in 64-bit versions of Office, you need to locate and modify all existing Declare statements to use the PtrSafe qualifier. And you need to locate and modify all data types within these Declare statements that reference handles or pointers to use the new 64-bit compatible LongPtr type alias, and types that need to hold 64-bit integrals with the new LongLong data type. Additionally, you must update any user defined types (UDTs) that contain pointers or handles, and 64-bit integrals to use 64-bit data types and verify all variable assignments are correct to prevent type mismatch errors. Writing code that works on both 32-bit and 64-bit Office To write code that can port between both 32-bit and 64-bit versions of Office you only need to use the new LongPtr type alias instead of Long or LongLong for all pointers and handle values.

The LongPtr type alias will resolve to the correct Long or LongLong data type depending on which version of Office is running. Note that if you require different logic to execute, for example you need to manipulate 64-bit values in large Microsoft Excel projects you can use the Win64 conditional compilation constant as shown in the following section. Writing code that works on both Microsoft Office 2010 (32-bit or 64-bit) and previous versions of Office To write code that can work in both new and older versions of Office you can use a combination of the new VBA7 and Win64 conditional. The Vba7 conditional compiler constant is used to determine if code is running in version 7 of the VB editor (the VBA version that ships in Office 2010). The Win64 conditional compilation constant is used to determine which version (32-bit or 64-bit) of Office is running.

#if Vba7 then ' Code is running in the new VBA7 editor #if Win64 then ' Code is running in 64-bit version of Microsoft Office #else ' Code is running in 32-bit version of Microsoft Office #end if #else ' Code is running in VBA version 6 or earlier #end if #If Vba7 Then Declare PtrSafe Sub. #Else Declare Sub. #EndIf Summary of VBA7 Language Updates The following table summarizes the new VBA language additions and provides an explanation of each: Name Type Description Keyword Asserts that a Declare statement is targeted for 64-bit systems. Required on 64-bits. Data type Type alias that maps to Long on 32-bit systems, or LongLong on 64-bit systems.

Data type 8 byte data type that is only available on 64bit systems. Numeric type. Integer numbers in the range of -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807. LongLong is a valid declared type only on 64-bit platforms. Additionally, LongLong may not be implicitly converted to a smaller type (for example, you can't assign a LongLong to a Long.).

This is done to prevent inadvertent pointer truncation. Explicit coercions are allowed, so in the example above, you could apply CLng to a LongLong and assign the result to a Long. (Valid on 64-bit platforms only.) ^ LongLong type-declaration character Explicitly declares a literal value as a LongLong.

Required to declare a LongLong literal that is larger than the maximum Long value (otherwise it will get implicitly converted to double ). Type conversion function Converts a simple expression to a LongPtr. Type conversion function Converts a simple expression to a LongLong data type. (Valid on 64-bit platforms only.) VarType constant VarType constant. DefType statement Sets the default data type for a range of variables as LongPtr. DefType statement Sets the default data type for a range of variables as LongLong.

The 6.0 version of Microsoft Visual Basic is available as a free download on our software library. The latest installation package that can be downloaded is 3.1 MB in size. Microsoft Visual Basic is sometimes referred to as 'Visual Basic SP6 4', 'Visual Basic', 'Microsoft Visual Basic 2005'. The most popular versions among the software users are 10.0, 9.0 and 8.0.

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The actual developer of the free program is Microsoft. This free PC program was developed to work on Windows XP, Windows Vista, Windows 7, Windows 8 or Windows 10 and can function on 32 or 64-bit systems. Microsoft Visual Basic is categorized as Development Tools. The Microsoft Visual Basic installer is commonly called VB6.EXE, VB5.EXE, ZipExeStub.exe, VB62.EXE, VB60.EXE, vb5cce.exe, VB4TUTOR.Exe, Vb32.exe, VB.EXE, Uninst1.exe, TestEngine2.exe, ST6UNST.EXE, SSW7_6640EED1.exe, vb6run.exe or vbexpress.exe etc. Visual Studio is extensible by nature, ultimately consisting of a core 'shell' that implements all commands, windows, editors, project types, languages, and other features through dynamically loadable modules called 'packages'.[19][20] Microsoft encourages and fosters third party partners to create modules for Visual Studio via the free VSIP program.

However, according to Dan Fernandez, Microsoft 'made a business decision to not allow 3rd party extensibility in Express'. Microsoft Visual Studio Express is a set of freeware integrated development environments (IDE) developed by Microsoft that are lightweight versions of the Microsoft Visual Studio product line. Express Editions were conceived beginning with Visual Studio 2005. You may want to check out more software, such as Microsoft Visual Basic 2008 Express - ESN, Cumulative Update for Microsoft Visual Basic or Microsoft Visual Basic Runtime SP6, which might be to Microsoft Visual Basic.