//zeige alle Fehler an / richard@borwinius.de
// ftp://ftp.oreilly.com/pub/examples/windows/winlog/CDROM/BOOK/CH06/LISTMSG/
 
#include <stdio.h>
#include <windows.h>
#include <lmerr.h>

void DisplayErrorText(DWORD dwLastError);
//-------------------------------------------------
// max 20000 Messages    
int main(void)
    {
    int i;
     
    for (i=0;i<20000;i++)
        {
        DisplayErrorText(i);
        }
    return 0;
    }

//-------------------------------------------------
void DisplayErrorText(DWORD dwLastError)
{
    HMODULE hModule = NULL; // default to system source
    LPSTR MessageBuffer;
    DWORD dwBufferLength;
    
    DWORD dwFormatFlags = FORMAT_MESSAGE_ALLOCATE_BUFFER |
        FORMAT_MESSAGE_IGNORE_INSERTS |
        FORMAT_MESSAGE_FROM_SYSTEM ;

    //
    // Call FormatMessage() to allow for message
    //  text to be acquired from the system
    //  or from the supplied module handle.
    //

    if(dwBufferLength = FormatMessageA(
        dwFormatFlags,
        NULL,//hModule, // module to get message from (NULL == system)
        dwLastError,
        MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // default language
        (LPSTR) &MessageBuffer, 0, NULL  ))
    {
        DWORD dwBytesWritten;
        printf("%05d\t0x%x\t%s\n",dwLastError,dwLastError,MessageBuffer);
        //
        // Output message string on stderr.
        //
        //WriteFile( GetStdHandle(STD_ERROR_HANDLE),MessageBuffer, dwBufferLength, &dwBytesWritten, NULL  );
        //
        // Free the buffer allocated by the system.
        //
        LocalFree(MessageBuffer);
    }

    //
    // If we loaded a message source, unload it.
    //
    if(hModule != NULL)
        FreeLibrary(hModule);
}