VBA now includes the variable type alias LongPtr.
#BESTBUY API VBA SEARCH WINDOWS#
To ensure a Windows API function call will work in 64-bit Excel, we need the keyword “ PtrSafe” somewhere in the Windows API declaration. Without this, you will get an error.
#BESTBUY API VBA SEARCH HOW TO#
Win32API_PtrSafe Download How to Deal with 32-bit Excel and 64-bit Excel (2021 edit) Tip 1: Use PtrSafe for 64-bit Excel Or you can download it here (don’t worry it’s a plain text file). As a useful resource you can obtain a list of Windows API declarations for VBA by searching for this file “Win32API_PtrSafe.TXT”. The VBA programmer only needs to copy the declarations and use the functions without understanding the details. There are many resource in the web that lists down the declarations for Windows API calls. It is essential to get the Windows API declaration exactly correct. MsgBox Left(strSysPath, GetSystemDirectory(strSysPath, 255))Įnd Sub Practical Windows API Tips for the VBA Programmer 'Purpose: invoke the Windows API GetSystemDirectoryA The Windows API only returns a number indicating the length of the directory string.īelow is a VBA subroutine to use this Windows API: '*************************************************** (ByVal lpBuffer As String, ByVal nSize As Long) As Long: After calling the Windows API, the systems directory path is contained in lpBuffer, and the length of the directory string is contained in nSize.
#BESTBUY API VBA SEARCH CODE#
If you are writing VBA code in 32-bit Excel, this keyword should not be used.įunction GetSystemDirectory Lib “kernel32”: This tells VBA that GetSystemDirectory is the name of Windows API that will be used in your VBA code and this Windows API is located in a library called “kernel32”.Īlias “GetSystemDirectoryA”: This means within the “kernel32” library, the Windows API’s actual name is GetSystemDirectoryA. PtrSafe: By adding PtrSafe after the Declare keyword, it makes this API work with 64-bit Excel. Let’s try to break this down into plain English.ĭeclare: A Windows API declaration always start with the “Declare” keyword. Here is an example: Declare PtrSafe Function GetSystemDirectory Lib "kernel32" _Īlias "GetSystemDirectoryA" (ByVal lpBuffer As String, ByVal nSize As Long) As Long The Library location of the the Windows API function. The Window API function name you would like to use.Ģ. The declaration statement will tell the VBA virtual machine 3 important pieces of information.ġ. How to declare a Windows API functionĪ Windows API function must be declared correctly at the top of a VBA code module. Windows API declarations are always placed at the top of a VBA code module. In such cases, a VBA program is able to invoke an Windows API by declaring the Windows API function at the top of a VBA code module. For example, VBA does not have a function to measure time in milliseconds but it is available in Windows API (I will write a tutorial on microsecond timer in VBA). Often times a VBA programmer may not be able to find a suitable Excel or a native VBA language function to perform a task but is available within the Windows APIs. Fortunately, the Windows API has always exposed a large part of the underlying structure of the Windows operating systems to VBA programmers too! Why VBA programmers need this? The Windows Application Programming Interface ( Windows API) is a set of functions within the Microsoft Windows operating system that are available to Windows programmers. Most useful Windows APIs for VBA programming (2021 edit).Will Windows API in VBA work on MacOS? (2021 edit).How to Deal with 32-bit Excel and 64-bit Excel (2021 edit).Practical Windows API Tips for the VBA Programmer.
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