Retrieving id of the resource knowing the full string

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I know it's a little bit tricky but I need it for an application.
Generally we use LoadString function to load a string from a resource in language, specifying the HINSTANCE of the dll.

What I have tried:

I'm looking for a way to reverse this method by knowing the string and the HINSTANCE where to look in to retrieve the ID.

Posted 28-Jun-16 23:07pm

Member 10620726

Updated 29-Jun-16 3:02am

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2 solutions

Solution 1

It is an easy trick: open the dll in Visual Studio as resource file. ("Open File" + select "resource" as file type)

Than you see the string list table and can search for it.

Posted 29-Jun-16 1:18am

KarstenK

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Jochen Arndt · Accepted Answer · 2016-06-29T03:02:00

If you need to do this by code just iterate over the possible IDs.

Untested example based on existing code to scan string resources in DLLs:

C++

int GetID(HMODULE hModule, LPCTSTR str)
{
    // Declare CString object outside the loop to avoid 
    //  memory allocation with each call to LoadString().
    CString strItem;
    for (unsigned long i = 0; i <= 0xFFFF; i++)
    {
        if (strItem.LoadString(hModule, i))
        {
            if (strItem == str)
                return i;
        }
    }
    return -1;
}

If the DLL is not already loaded, load it as data file using LoadLibraryEx with parameters DONT_RESOLVE_DLL_REFERENCES | LOAD_LIBRARY_AS_DATAFILE.