devxlogo

Use OLE Automation to Call 16-Bit DLLs From VB5 (or VB4 32)

Use OLE Automation to Call 16-Bit DLLs From VB5 (or VB4 32)

Why Trust Us

First, create a VB4-16 project and call it VB16Project. In the project, create a class module that includes a function that calls your 16-bit DLL in the usual way. Name the class VB16Class and the function VB16DLLCall. In your VB4-16 project, remove the default form and add a standard module with a Main subroutine or function.

Under the Tools/Options/Project/StartMode section, click on the OLE Server radio button. Make sure your class module’s Instancing Property is set to 1 (CreateableSingleUse) or 2 (CreateableMultiUse). Compile and save your project as an Executable. Now create a 32-bit application using VB4-32 or VB5. To call the 16-bit DLL in your 32-bit project, use this code:

 		Dim MyObj as Object 		Set MyObj = CreateObject("VB16Project.VB16Class")		Call MyObj.VB16DLLCall()
See also  Why ChatGPT Is So Important Today
devxblackblue

About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.

About Our Journalist

Charlie Frank

Charlie has over a decade of experience in website administration and technology management. As the site admin, he oversees all technical aspects of running a high-traffic online platform, ensuring optimal performance, security, and user experience.
View Author
Show More