dllMain

Question

Bonjour,

j'ai un petit souci,
j'aimerais savoir a koi correspondent chaque case dans le dllMain.
Je n'arrive plus a lire mon cd de MSDN donc je suis coincé, kelk'un peut il me renseigné?

BOOL APIENTRY DllMain(HANDLE hModule, 
                      DWORD  ul_reason_for_call, 
                      LPVOID lpReserved)
{
    switch( ul_reason_for_call ) {
    case DLL_PROCESS_ATTACH:
    .
    .
    .
    case DLL_THREAD_ATTACH:
    .
    .
    .
    case DLL_THREAD_DETACH:
    .
    .
    .
    case DLL_PROCESS_DETACH:
    .
    .
    .
    }
    return TRUE;
}

Merci beaucoup.
None

BruNews · Answer

Les constantes sont pourtant bien nommees, pour une fois.
DLL_PROCESS_ATTACH:
The DLL is being loaded into the virtual address space of the current process as a result of the process starting up or as a result of a call to LoadLibrary. DLLs can use this opportunity to initialize any instance data or to use the TlsAlloc function to allocate a thread local storage (TLS) index.
DLL_THREAD_ATTACH:
The current process is creating a new thread. When this occurs, the system calls the entry-point function of all DLLs currently attached to the process. The call is made in the context of the new thread. DLLs can use this opportunity to initialize a TLS slot for the thread. A thread calling the DLL entry-point function with DLL_PROCESS_ATTACH does not call the DLL entry-point function with DLL_THREAD_ATTACH. 
Note that a DLL's entry-point function is called with this value only by threads created after the DLL is loaded by the process. When a DLL is loaded using LoadLibrary, existing threads do not call the entry-point function of the newly loaded DLL.
DLL_THREAD_DETACH:
A thread is exiting cleanly. If the DLL has stored a pointer to allocated memory in a TLS slot, it should use this opportunity to free the memory. The system calls the entry-point function of all currently loaded DLLs with this value. The call is made in the context of the exiting thread.
DLL_PROCESS_DETACH:
The DLL is being unloaded from the virtual address space of the calling process as a result of unsuccessfully loading the DLL, termination of the process, or a call to FreeLibrary. The DLL can use this opportunity to call the TlsFree function to free any TLS indices allocated by using TlsAlloc and to free any thread local data. 
Note that the thread that receives the DLL_PROCESS_DETACH notification is not necessarily the same thread that received the DLL_PROCESS_ATTACH notification.

BruNews, ciao...

DllMain

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