ExportsToC++

ExportsToC++ is a Windows GUI tool that parses dumpbin.exe output and converts a DLL's exported function list into C++ proxy code. This is useful for creating proxy DLLs to intercept API calls.

Requirements

• Windows
• .NET Framework 2.0
• dumpbin.exe (included with Visual Studio) — automatically located in Visual Studio 8 or 9 install directories, or anywhere on your PATH

Usage

1. Open a DLL in the tool via File > Open (or pass it as a command-line argument)
2. The tool runs dumpbin.exe /EXPORTS and displays the raw export table in the top pane
3. Click Generate to produce C++ proxy code in the bottom pane
4. When prompted, enter the name of the proxy DLL (without .dll)
5. Copy the output to clipboard or save it as a .cpp file via File > Save

You can also launch with a file pre-loaded:

ExportsToC++.exe path\to\target.dll

Input

The tool accepts any Windows DLL (.dll) that exports functions. Internally it runs:

dumpbin.exe /EXPORTS "target.dll"

The raw dumpbin output is displayed in the top pane. The export table must contain at least one function — if the DLL has no exports the tool will warn you and skip generation.

Output

The generated .cpp file contains:

• Standard includes (stdafx.h, windows.h, iostream)
• A #pragma comment(linker, ...) directive for each exported function, forwarding it from the proxy DLL to the real one by name and ordinal:

#include "stdafx.h"
#include <iostream>
#include <windows.h>

using namespace std;

#pragma comment (linker, "/export:SomeFunction=reallib.SomeFunction,@1")
#pragma comment (linker, "/export:AnotherFunction=reallib.AnotherFunction,@2")
// ...

BOOL WINAPI DllMain(HINSTANCE hInst, DWORD reason, LPVOID)
{
    return true;
}

The proxy DLL name used in the forwarding directives (e.g. reallib above) is entered when you click Generate. The output can be copied to the clipboard or saved as a .cpp source file.

License

MIT License. See LICENSE for details.