void VBoxSeamlessDestroy(const VBOXSERVICEENV *pEnv, void *pInstance)
{
Log(("VBoxTray: VBoxSeamlessDestroy\n"));
VBoxSeamlessSetSupported(FALSE);
/* Inform the host that we no longer support the seamless window mode. */
if (gCtx.pfnVBoxHookRemoveWindowTracker)
gCtx.pfnVBoxHookRemoveWindowTracker();
if (gCtx.hModule)
FreeLibrary(gCtx.hModule);
gCtx.hModule = 0;
return;
}
int VBoxSeamlessInit(const VBOXSERVICEENV *pEnv, void **ppInstance, bool *pfStartThread)
{
Log(("VBoxTray: VBoxSeamlessInit\n"));
*pfStartThread = false;
gCtx.pEnv = pEnv;
OSVERSIONINFO OSinfo;
OSinfo.dwOSVersionInfoSize = sizeof (OSinfo);
GetVersionEx (&OSinfo);
int rc = VINF_SUCCESS;
/* We have to jump out here when using NT4, otherwise it complains about
a missing API function "UnhookWinEvent" used by the dynamically loaded VBoxHook.dll below */
if (OSinfo.dwMajorVersion <= 4) /* Windows NT 4.0 or older */
{
Log(("VBoxTray: VBoxSeamlessInit: Windows NT 4.0 or older not supported!\n"));
rc = VERR_NOT_SUPPORTED;
}
else
{
/* Will fail if SetWinEventHook is not present (version < NT4 SP6 apparently) */
gCtx.hModule = LoadLibrary(VBOXHOOK_DLL_NAME);
if (gCtx.hModule)
{
*(uintptr_t *)&gCtx.pfnVBoxHookInstallWindowTracker = (uintptr_t)GetProcAddress(gCtx.hModule, "VBoxHookInstallWindowTracker");
*(uintptr_t *)&gCtx.pfnVBoxHookRemoveWindowTracker = (uintptr_t)GetProcAddress(gCtx.hModule, "VBoxHookRemoveWindowTracker");
/* rc should contain success status */
AssertRC(rc);
VBoxSeamlessSetSupported(TRUE);
// if (RT_SUCCESS(rc))
{
*pfStartThread = true;
*ppInstance = &gCtx;
}
}
else
{
rc = RTErrConvertFromWin32(GetLastError());
Log(("VBoxTray: VBoxSeamlessInit: LoadLibrary of \"%s\" failed with rc=%Rrc\n", VBOXHOOK_DLL_NAME, rc));
}
}
return rc;
}
void VBoxSeamlessDestroy(const VBOXSERVICEENV *pEnv, void *pInstance)
{
Log(("VBoxTray: VBoxSeamlessDestroy\n"));
VBoxSeamlessSetSupported(FALSE);
/* Inform the host that we no longer support the seamless window mode. */
if (gCtx.pfnVBoxHookRemoveWindowTracker)
gCtx.pfnVBoxHookRemoveWindowTracker();
if (gCtx.hModHook != NIL_RTLDRMOD)
{
RTLdrClose(gCtx.hModHook);
gCtx.hModHook = NIL_RTLDRMOD;
}
return;
}
DECLCALLBACK(int) VBoxSeamlessInit(const PVBOXSERVICEENV pEnv, void **ppInstance)
{
LogFlowFuncEnter();
PVBOXSEAMLESSCONTEXT pCtx = &g_Ctx; /* Only one instance at the moment. */
AssertPtr(pCtx);
pCtx->pEnv = pEnv;
pCtx->hModHook = NIL_RTLDRMOD;
OSVERSIONINFO OSinfo;
OSinfo.dwOSVersionInfoSize = sizeof (OSinfo);
GetVersionEx (&OSinfo);
int rc;
/* We have to jump out here when using NT4, otherwise it complains about
a missing API function "UnhookWinEvent" used by the dynamically loaded VBoxHook.dll below */
if (OSinfo.dwMajorVersion <= 4) /* Windows NT 4.0 or older */
{
Log(("VBoxTray: VBoxSeamlessInit: Windows NT 4.0 or older not supported!\n"));
rc = VERR_NOT_SUPPORTED;
}
else
{
/* Will fail if SetWinEventHook is not present (version < NT4 SP6 apparently) */
rc = RTLdrLoadAppPriv(VBOXHOOK_DLL_NAME, &pCtx->hModHook);
if (RT_SUCCESS(rc))
{
*(PFNRT *)&pCtx->pfnVBoxHookInstallWindowTracker = RTLdrGetFunction(pCtx->hModHook, "VBoxHookInstallWindowTracker");
*(PFNRT *)&pCtx->pfnVBoxHookRemoveWindowTracker = RTLdrGetFunction(pCtx->hModHook, "VBoxHookRemoveWindowTracker");
/* rc should contain success status */
AssertRC(rc); /** @todo r=andy Makes no sense here!? */
VBoxSeamlessSetSupported(TRUE);
*ppInstance = pCtx;
}
else
LogFlowFunc(("Unable to load %s, rc=%Rrc\n", VBOXHOOK_DLL_NAME, rc));
}
LogFlowFuncLeaveRC(rc);
return rc;
}
void VBoxSeamlessDestroy(void *pInstance)
{
LogFlowFuncEnter();
PVBOXSEAMLESSCONTEXT pCtx = (PVBOXSEAMLESSCONTEXT)pInstance;
AssertPtr(pCtx);
VBoxSeamlessSetSupported(FALSE);
/* Inform the host that we no longer support the seamless window mode. */
if (pCtx->pfnVBoxHookRemoveWindowTracker)
pCtx->pfnVBoxHookRemoveWindowTracker();
if (pCtx->hModHook != NIL_RTLDRMOD)
{
RTLdrClose(pCtx->hModHook);
pCtx->hModHook = NIL_RTLDRMOD;
}
return;
}