In a hurry? Just watch the video above. CustomDblClickEdit - This example is used to demonstrate how you can replace the standard functionality of the Double Click Editing inside of AutoCAD of. Below is an overview of the 4 samples that are currently available. I have uploaded a couple of additional sample VBA projects to my website that can be downloaded. VBA Downloads for AutoCAD.
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The VBA I wrote works with A2K, but when I. And use the using the Win32 API to further extend your Price. Download the files as a zip using the green button, or clone the repository to your machine using Git. This repository accompanies AutoCAD VBA by Joe Sutphin (Apress, ). OverviewThis site is primarily aimed towards utilising the AutoLISP & Visual LISP APIs to create custom programs which may be run within full versions of AutoCAD.AutoCAD VBA A Programmers Reference Joe Sutphin fm 82405 AM Page i. If your scenario isn’t covered in the video, then I probably cover it in this article.
For this reason, all SolidWorks API code that you write in pre-2013 should work in 2013, and vice versa. By using the DDE functions of Windows OS, a whole series of commands can be sent transparently to AutoCAD LTs command line as though youd entered the commands yourself.VBA7 is 100% compatible with VBA6 (the version included in SolidWorks 2012 and earlier). VB & VBA can be done to an extent. This is great news for several reasons, the most significant being: 1) VBA user forms no longer pop-up behind the SolidWorks application window, and 2) it proves to us that both Microsoft and SolidWorks Corporation are serious about maintaining the VBA language, which is the language of most SolidWorks API code.10-15-2002 09:55 PM.
This includes ActiveX controls, which have the extension. The reason your macros are failing is because they are not set up to reference 64 bit DLL files, or the DLL files you are trying to reference are not 64 bit compatible. When you try to run the macro, you may get the following error.Why is this? Were we not told that VBA7 is 100% compatible with VBA6? The issue isn’t with VBA.
Fixing the ProblemFixing the problem comprises three steps: 1) obtaining a 64 bit version of the DLL that is causing problems, 2) re-declaring its functions using new VBA7 keywords, 3) including conditional code that allows for backward compatibility on VBA6. Later, if you’re so inclined, you can keep reading and learn the technical “why” behind the dilemma. So if you are using any of the Microsoft Common Controls in your user form (e.g., slider, calendar, web browser) then you are using ActiveX controls that will fail in VBA7.First I’m going to give you the quick-and-dirty steps on how to (hopefully) fix your dilemma.
If you can’t find an alternative DLL and don’t mind writing your own, keep in mind that since these controls are really just wrappers for underlying Win32 API calls, it is certainly possible to write a DLL that accesses those Win32 API calls directly. Unfortunately, Microsoft has decided not to update the underlying DLLs to support 64 bit, so you will definitely need a workaround. The most popular ActiveX controls are Microsoft Common Controls (mscomctl.ocx). Four of the most common Win32 DLLs are kernel23.dll, gdi32.dll, user32.dll, and shell32.dll.As mentioned in the Overview, ActiveX controls are technically just wrappers for an underlying DLL. If there is an article describing it at MSDN then it is probably a Win32 API function.
Conversely, you might also notice that it is not necessary to change all Long variables to LongPtr. Watch the video at the beginning of the article for an example of this. If you do not convert these to LongPtr, then you may either get a “Type mismatch” compile error, or SolidWorks will crash entirely. In your macro, you may have many more Long variables associated with the function that are declared on separate lines. For example, examine the difference in declaration with this Win32 API function called “SHGetPathFromIDList”:Private Declare Function SHGetPathFromIDList Lib "shell32.dll" Alias "SHGetPathFromIDListA" (ByVal pidl As Long, ByVal pszPath As String) As LongPrivate Declare PtrSafe Function SHGetPathFromIDList Lib "shell32.dll" Alias "SHGetPathFromIDListA" (ByVal pidl As LongPtr, ByVal pszPath As String) As LongPtr1.
This doesn’t mean it actually is safe! If you aren’t certain if a DLL is 64 bit, you can determine this using tools like Process Explorer or Dependency Walker.3. The inclusion of the PtrSafe keyword simply means you think the DLL is safe for 64 bit use. Alternatively, you can indiscriminately convert all Long variables to LongPtr, since it doesn’t hurt anything.2. If you don’t know whether a variable corresponds to pointer (and therefore should be converted to LongPtr), simply verify by using this Microsoft-published text file of PtrSafe Win32 API calls.
This is where Conditional Compilation Constants come in. Does this mean we have to create a version of our macros for use on 64 bit and another version for 32 bit? Thankfully, no. Make your code compatible with VBA6 and VBA7The PtrSafe and LongPtr keywords that we used just a moment ago are unrecognized by VBA6.
For some of you, however, this isn’t enough. Technical BackgroundI hope by this point you know what you need to do to correct any 64 bit compatibility issues you’re having with your macros. The syntax looks like this:Not too bad, is it? Note that you can use conditional compilation constants anywhere in your code, including LongPtr declarations within other functions and sub-procedures. Otherwise, we’ll use the VBA6 declaration. If it is VBA7, we’ll use our declaration involving PtrSafe and LongPtr. Specifically, we’ll use the “VBA7” constant to test for the version of VBA we’re using.
Just like a postal address, your computer needs to know where data is being stored in memory in order to read it or write to it. Next, what you need to understand is that when data is stored in RAM (memory), each byte has an address. The smallest amount of information that your computer can write to and read from, however, is not a bit but a byte, which is composed of 8 bits. As anyone who’s taken a basic course in digital logic knows, the smallest unit of information in a computer is a bit, which represents a 1 or a 0. This next section should answer of that for you.To answer the “why” question, we need to begin by understanding why 64 bit computers exist in the first place.
This will allow for a whopping 16 Exabytes of possible memory. The solution? Start making addresses that are 64 bits in length. As you know, that’s equal to 4 GiB.Now, as we all know, 4GB just isn’t good enough! We want more memory… lot’s more! But with only 32 bits, we can’t address all of that memory. In binary, that means our total number of possible bytes we can address with a 32 bit memory address is 2^32, or 4,294,967,296. Since each byte is composed of 8 bits, that means we have 32 bits total to work with.
Not surprisingly, these are the data types used for pointers. If you open up the Microsoft VBA Help in the VB Editor and locate the “Data Type Summary” article, you’ll see that Long and Object data types listed as containing 4 bytes. Since these pointers are composed 4 bytes, we need store them in a data type of this size.
Since VBA7 uses 64 bit memory addresses, any DLLs that it references must be 64 bit compatible. Now that computers are using 64 bit addresses, a new version of VBA was needed to handle addresses of this length. It can only handle 32 bit addresses. In the case of DLL functions, the pointers are often times declared as Long.VBA6 is the version of VBA used in the late 90’s and the following decade.
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