Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All

Enumerating Symbols

The following code displays the name, address, and size of each loaded symbol in the specified module. The SymEnumSymbols function requires a callback function, which is called once for each module loaded. In this example, EnumSymProc is an implementation of the callback function.


#include <windows.h>
#include <stdio.h>
#include <dbghelp.h>

BOOL CALLBACK EnumSymProc( 
    PSYMBOL_INFO pSymInfo,   
    ULONG SymbolSize,      
    PVOID UserContext)
{
    UNREFERENCED_PARAMETER(UserContext);
    
    printf("%08X %4u %s\n", 
           pSymInfo->Address, SymbolSize, pSymInfo->Name);
    return TRUE;
}

void main()
{
    HANDLE hProcess = GetCurrentProcess();
    DWORD64 BaseOfDll;
    char *Mask = "*";
    BOOL status;

    status = SymInitialize(hProcess, NULL, FALSE);
    if (status == FALSE)
    {
        return;
    }
    
    BaseOfDll = SymLoadModuleEx(hProcess,
                                NULL,
                                "foo.dll",
                                NULL,
                                0,
                                0,
                                NULL,
                                0);
                                
    if (BaseOfDll == 0)
    {
        SymCleanup(hProcess);
        return;
    }                                
        
    if (SymEnumSymbols(hProcess,     // Process handle from SymInitialize.
                        BaseOfDll,   // Base address of module.
                        Mask,        // Name of symbols to match.
                        EnumSymProc, // Symbol handler procedure.
                        NULL))       // User context.
    {
        // SymEnumSymbols succeeded
    }
    else
    {
        // SymEnumSymbols failed
        printf("SymEnumSymbols failed: %d\n", GetLastError());
    }
    
    SymCleanup(hProcess);
}


 

 

Community Additions

ADD
Show:
© 2015 Microsoft