shellservice.cpp File Reference

#include "precomp.h"

Include dependency graph for shellservice.cpp:

Go to the source code of this file.

Functions
static int CALLBACK	InitializeAllCallback (void *pItem, void *pData)
static int CALLBACK	ShutdownAllCallback (void *pItem, void *pData)
static int CALLBACK	DeleteAllEnumCallback (void *pItem, void *pData)
HRESULT	InitShellServices (HDPA *phdpa)
HRESULT	ShutdownShellServices (HDPA hdpa)

Function Documentation

DeleteAllEnumCallback()

static int CALLBACK DeleteAllEnumCallback ( void *  pItem, void *  pData  )

static

Definition at line 40 of file shellservice.cpp.

{
    IOleCommandTarget * pOct = reinterpret_cast<IOleCommandTarget *>(pItem);
    TRACE("Releasing SSO %p\n", pOct);
    pOct->Release();
    return TRUE;
}

Referenced by ShutdownShellServices().

InitializeAllCallback()

static int CALLBACK InitializeAllCallback ( void *  pItem, void *  pData  )

static

Definition at line 23 of file shellservice.cpp.

{
    IOleCommandTarget * pOct = reinterpret_cast<IOleCommandTarget *>(pItem);
    HRESULT * phr = reinterpret_cast<HRESULT *>(pData);
    TRACE("Initializing SSO %p\n", pOct);
    *phr = pOct->Exec(&CGID_ShellServiceObject, OLECMDID_NEW, OLECMDEXECOPT_DODEFAULT, NULL, NULL);
    return SUCCEEDED(*phr);
}

Referenced by InitShellServices().

InitShellServices()

HRESULT InitShellServices

(

HDPA *

phdpa

)

Definition at line 48 of file shellservice.cpp.

{
    IOleCommandTarget * pOct;
    HKEY    hkey;
    CLSID   clsid;
    WCHAR   name[MAX_PATH];
    WCHAR   value[MAX_PATH];
    DWORD   type;
    LONG    ret;
    HDPA    hdpa;
    HRESULT hr = S_OK;
    int     count = 0;

    *phdpa = NULL;

    TRACE("Enumerating Shell Service Object GUIDs...\n");

    if (RegOpenKeyW(HKEY_LOCAL_MACHINE,
        L"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\ShellServiceObjectDelayLoad",
        &hkey))
    {
        ERR("RegOpenKeyW failed.\n");
        return HRESULT_FROM_WIN32(GetLastError());
    }

    hdpa = DPA_Create(5);

    /* Enumerate */
    do
    {
        DWORD   name_len = MAX_PATH;
        DWORD   value_len = sizeof(value); /* byte count! */

        ret = RegEnumValueW(hkey, count, name, &name_len, 0, &type, (LPBYTE) &value, &value_len);
        if (ret)
            break;

        if (type != REG_SZ)
        {
            WARN("Value type was not REG_SZ.\n");
            continue;
        }

        hr = CLSIDFromString(value, &clsid);
        if (FAILED_UNEXPECTEDLY(hr))
        {
            ERR("CLSIDFromString failed %08x.\n", hr);
            goto cleanup;
        }

        hr = CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARG(IOleCommandTarget, &pOct));
        if (FAILED_UNEXPECTEDLY(hr))
        {
            ERR("CoCreateInstance failed %08x.\n", hr);
            goto cleanup;
        }

        DPA_AppendPtr(hdpa, pOct);

        count++;
    }
    while (1);

    if (ret != ERROR_NO_MORE_ITEMS)
    {
        ERR("RegEnumValueW failed %08x.\n", ret);
        hr = HRESULT_FROM_WIN32(GetLastError());
        goto cleanup;
    }

    RegCloseKey(hkey);

    /* Initialize */
    DPA_EnumCallback(hdpa, InitializeAllCallback, &hr);
    if (FAILED_UNEXPECTEDLY(hr))
        goto cleanup;

    *phdpa = hdpa;
    return count > 0 ? S_OK : S_FALSE;

cleanup:
    *phdpa = NULL;
    ShutdownShellServices(hdpa);
    return hr;
}

Referenced by CTrayWindow::OnCreate().

ShutdownAllCallback()

static int CALLBACK ShutdownAllCallback ( void *  pItem, void *  pData  )

static

Definition at line 32 of file shellservice.cpp.

{
    IOleCommandTarget * pOct = reinterpret_cast<IOleCommandTarget *>(pItem);
    TRACE("Shutting down SSO %p\n", pOct);
    pOct->Exec(&CGID_ShellServiceObject, OLECMDID_SAVE, OLECMDEXECOPT_DODEFAULT, NULL, NULL);
    return TRUE;
}

Referenced by ShutdownShellServices().

ShutdownShellServices()

HRESULT ShutdownShellServices

(

HDPA

hdpa

)

Definition at line 134 of file shellservice.cpp.

{
    DPA_EnumCallback(hdpa, ShutdownAllCallback, NULL);
    DPA_EnumCallback(hdpa, DeleteAllEnumCallback, NULL);
    DPA_Destroy(hdpa);
    return S_OK;
}

Referenced by InitShellServices(), and CTrayWindow::~CTrayWindow().