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The P/Invoke Wizard
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P/Invoke Programming
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1. What Is P/Invoke?
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P/Invoke (also called "Platform Invoke") lets managed code call into unmanaged DLL
functions. P/Invoke is supported in both the...(click
to continue)
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2. Can I Avoid P/Invoke?
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Can you avoid P/Invoke? Perhaps, if you are writing very simple programs. But if
your software relies on an existing, native Win32 DLL, then you must either: (1)
rewrite the DLL in managed code, or...(click
to continue)
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3. Required P/Invoke References
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To enable a successful compile, your managed code must reference the namespace which
contains the P/Invoke declarations. This means, of course, the ...(click to continue)
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P/Invoke Wizard
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1. What is the P/Invoke Wizard?
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The P/Invoke Wizard is a source code generation tool. With just a few mouse clicks,
the P/Invoke Wizard can generate thousands of lines of P/Invoke declarations for
you – in just a second or two. What is your time worth? If you have a large number
of declarations...(click to continue)
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2. P/Invoke Wizard 2.0 Demo Version
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The demo version shows how the conversion works on the three most important include
files in the Win32 API: winbase.h, wingdi.h, and winuser.h. These files contain
over 32,000 lines of...(click to
continue)
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3. How does the P/Invoke Wizard work?
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P/Invoke works by reading C/C++ include (.H) files. The P/Invoke processing engine
takes the various declarations and produces a compatible .NET version in your choice
of C# or Visual Basic .NET.(click
to continue)
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P/Invoke Wizard Examples
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1. Example: Constants
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Here is an example of a P/Invoke conversion. In this example, symbolic constants
are defined in an include file using the #define keyword...(click to continue)
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2. Example: Data Structures
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Here is an example of a P/Invoke conversion. In this example, a data structure is
defined in an include file using the typedef struct keywords...(click to continue)
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3. Example: Function Calls
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Here is an example of a P/Invoke conversion. In this example, the P/Invoke Wizard
converts a function call, which is shown here as it might appear in an include file...(click to continue)
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P/Invoke Wizard Notes
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1. Supported P/Invoke Features
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You can look at the simple examples on this web site, but honestly they do not do
justice to all of the available features provided by the P/Invoke Wizard. We've
used it extensively in... (click to
continue)
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2. What's new in the PInvoke Wizard 2.0?
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Here are some of the improvements in the new version...(click
to continue)
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3. P/Invoke Wizard 2.0 Limitations
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The P/Invoke Wizard relies on information found in include (*.H) files. Without
an include file, then P/Invoke cannot help you. It does not, for example, use the
binary DLL file for input. Nor...(click
to continue)
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Last updated: November 5, 2023
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