Source code of Windows XP (NT5)
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//=--------------------------------------------------------------------------=
// InProcServer.Cpp
//=--------------------------------------------------------------------------=
// Copyright 1995 Microsoft Corporation. All Rights Reserved.
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
// PARTICULAR PURPOSE.
//=--------------------------------------------------------------------------=
//
// implements all exported DLL functions for the program, as well as a few
// others that will be used by same
//
#include "pch.h"
#include "LocalSrv.H"
#include "AutoObj.H"
#include "ClassF.H"
#include "CtrlObj.H"
#include "Unknown.H"
#include "ComCat.H"
#ifdef DEBUG
#include "debug.h"
#include <winbase.h>
#endif // DEBUG
// for ASSERT and FAIL
//
SZTHISFILE
#ifdef VS_HELP
#include "vshelp.h"
extern IVsHelpSystem *g_pIVsHelpSystem;
#endif
//=--------------------------------------------------------------------------=
// Private module level data
//
//=--------------------------------------------------------------------------=
// These are used for reflection in OLE Controls. Not that big of a hit that
// we mind defining them for all servers, including automation or generic
// COM.
//
// Make this a constant.
extern const char g_szReflectClassName [] = "CtlFrameWork_ReflectWindow";
BYTE g_fRegisteredReflect = FALSE;
BOOL g_fDBCSEnabled = FALSE;
extern HINSTANCE g_hInstResources;
extern HINSTANCE g_hinstVersion;
#ifdef MDAC_BUILD
extern HINSTANCE g_hOleAutHandle;
#else
extern HANDLE g_hOleAutHandle;
#endif
extern const int g_ctCATIDImplemented;
extern const CATID* g_rgCATIDImplemented[];
// ref count for LockServer
//
LONG g_cLocks;
// private routines for this file.
//
int IndexOfOleObject(REFCLSID);
HRESULT RegisterAllObjects(void);
HRESULT UnregisterAllObjects(void);
void CleanupGlobalObjects(void);
//=--------------------------------------------------------------------------=
// DllMain
//=--------------------------------------------------------------------------=
// yon standard LibMain.
//
// Parameters and Output:
// - see SDK Docs on DllMain
//
// Notes:
//
BOOL WINAPI DllMain
(
HANDLE hInstance,
DWORD dwReason,
void *pvReserved
)
{
// int i;
switch (dwReason) {
// set up some global variables, and get some OS/Version information
// set up.
//
case DLL_PROCESS_ATTACH:
{
DWORD dwVer = GetVersion();
DWORD dwWinVer;
// swap the two lowest bytes of dwVer so that the major and minor version
// numbers are in a usable order.
// for dwWinVer: high byte = major version, low byte = minor version
// OS Sys_WinVersion (as of 5/2/95)
// =-------------= =-------------=
// Win95 0x035F (3.95)
// WinNT ProgMan 0x0333 (3.51)
// WinNT Win95 UI 0x0400 (4.00)
//
dwWinVer = (UINT)(((dwVer & 0xFF) << 8) | ((dwVer >> 8) & 0xFF));
g_fSysWinNT = FALSE;
g_fSysWin95 = FALSE;
g_fSysWin95Shell = FALSE;
if (dwVer < 0x80000000) {
g_fSysWinNT = TRUE;
g_fSysWin95Shell = (dwWinVer >= 0x0334);
} else {
g_fSysWin95 = TRUE;
g_fSysWin95Shell = TRUE;
}
// initialize a critical seciton for our apartment threading support
//
InitializeCriticalSection(&g_CriticalSection);
// create an initial heap for everybody to use.
// currently, we're going to let the system make things thread-safe,
// which will make them a little slower, but hopefully not enough
// to notice
//
if (!g_hHeap)
g_hHeap = GetProcessHeap();
if (!g_hHeap) {
FAIL("Couldn't get Process Heap. Not good!");
return FALSE;
}
g_hInstance = (HINSTANCE)hInstance;
// this causes DllMain to NOT get called for DLL_THREAD_ATTACH and DETACH.
// if you are interested in these notifications, please remove this line.
//
DisableThreadLibraryCalls(g_hInstance);
g_fDBCSEnabled = GetSystemMetrics(SM_DBCSENABLED);
// Initialize OleAut
//
g_hOleAutHandle = LoadLibrary("oleaut32.dll");
// give the user a chance to initialize whatever
//
InitializeLibrary();
#ifdef DEBUG
TCHAR lpCtlName[255];
DWORD nSize = 255;
DWORD fValidPath;
// set all ctl debug switches
//
fValidPath = GetModuleFileName(g_hInstance, (LPTSTR)lpCtlName, nSize);
if (fValidPath != 0)
SetCtlSwitches((LPSTR)lpCtlName);
// initialize a critical seciton for our heap memory leak detection
//
InitializeCriticalSection(&g_csHeap);
g_fInitCrit = TRUE;
#endif // DEBUG
return TRUE;
}
// do a little cleaning up!
//
case DLL_PROCESS_DETACH:
#ifdef VS_HELP
ASSERT(g_pIVsHelpSystem == NULL, "IVsHelpSystem didn't get released");
#endif
// clean up some stuff
//
DeleteCriticalSection(&g_CriticalSection);
CleanupGlobalObjects();
// give the user a chance to do some cleaning up
//
UninitializeLibrary();
// Deinitialize OleAut, But not in Win95.
// Calling FreeLibrary under Win95 for OleAut
// will sometimes cause a crash (It seems that
// there can be a rpoblem in which OleAut is called
// from OleUnitnitialize and causes a problem with FreeLibrary.
//
if (g_hOleAutHandle && !g_fSysWin95)
{
FreeLibrary((HINSTANCE)g_hOleAutHandle);
g_hOleAutHandle = NULL;
}
// Make sure we free up our cached resource handle for localized resources
//
if (g_hInstResources && g_hInstResources != g_hInstance)
FreeLibrary(g_hInstResources);
// Free up VERSION.DLL
//
if (g_hinstVersion)
{
FreeLibrary(g_hinstVersion);
g_hinstVersion = NULL;
}
#ifdef DEBUG
// check for memory leaks
//
CheckForLeaks();
// free critical section used for leak checking
//
DeleteCriticalSection(&g_csHeap);
g_fInitCrit = FALSE;
#endif // DEBUG
return TRUE;
}
return TRUE;
}
//=--------------------------------------------------------------------------=
// CleanupGlobalObjects
//=--------------------------------------------------------------------------=
// duh
//
// Notes:
//
void CleanupGlobalObjects(void)
{
int i = 0;
while (!ISEMPTYOBJECT(i)) {
if (g_ObjectInfo[i].usType == OI_CONTROL) {
if (CTLWNDCLASSREGISTERED(i))
UnregisterClass(WNDCLASSNAMEOFCONTROL(i), g_hInstance);
}
i++;
}
// clean up our parking window.
//
if (g_hwndParking) {
DestroyWindow(g_hwndParking);
g_hwndParking = NULL;
UnregisterClass("CtlFrameWork_Parking", g_hInstance);
}
// clean up after reflection, if appropriate.
//
if (g_fRegisteredReflect) {
UnregisterClass(g_szReflectClassName, g_hInstance);
g_fRegisteredReflect = FALSE;
}
}
//=--------------------------------------------------------------------------=
// DllRegisterServer
//=--------------------------------------------------------------------------=
// registers the Automation server
//
// Output:
// HRESULT
//
// Notes:
//
STDAPI DllRegisterServer
(
void
)
{
HRESULT hr;
hr = RegisterAllObjects();
RETURN_ON_FAILURE(hr);
// call user registration function.
//
return (RegisterData())? S_OK : E_FAIL;
}
//=--------------------------------------------------------------------------=
// DllUnregisterServer
//=--------------------------------------------------------------------------=
// unregister's the Automation server
//
// Output:
// HRESULT
//
// Notes:
//
STDAPI DllUnregisterServer
(
void
)
{
HRESULT hr;
hr = UnregisterAllObjects();
RETURN_ON_FAILURE(hr);
// call user unregistration function
//
return (UnregisterData()) ? S_OK : E_FAIL;
}
//=--------------------------------------------------------------------------=
// DllCanUnloadNow
//=--------------------------------------------------------------------------=
// we are being asked whether or not it's okay to unload the DLL. just check
// the lock counts on remaining objects ...
//
// Output:
// HRESULT - S_OK, can unload now, S_FALSE, can't.
//
// Notes:
//
STDAPI DllCanUnloadNow
(
void
)
{
#ifdef VS_HELP
if (g_pIVsHelpSystem)
{
g_pIVsHelpSystem->Release();
g_pIVsHelpSystem = NULL;
}
#endif
// if there are any objects lying around, then we can't unload. The
// controlling CUnknownObject class that people should be inheriting from
// takes care of this
//
#ifdef MDAC_BUILD
return (g_cLocks || !CanUnloadLibraryNow()) ? S_FALSE : S_OK;
#else
return (g_cLocks) ? S_FALSE : S_OK;
#endif
}
//=--------------------------------------------------------------------------=
// DllGetClassObject
//=--------------------------------------------------------------------------=
// creates a ClassFactory object, and returns it.
//
// Parameters:
// REFCLSID - CLSID for the class object
// REFIID - interface we want class object to be.
// void ** - pointer to where we should ptr to new object.
//
// Output:
// HRESULT - S_OK, CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY,
// E_INVALIDARG, E_UNEXPECTED
//
// Notes:
//
STDAPI DllGetClassObject
(
REFCLSID rclsid,
REFIID riid,
void **ppvObjOut
)
{
HRESULT hr;
void *pv;
int iIndex;
// arg checking
//
if (!ppvObjOut)
return E_INVALIDARG;
// first of all, make sure they're asking for something we work with.
//
iIndex = IndexOfOleObject(rclsid);
if (iIndex == -1)
#ifdef MDAC_BUILD
// NOTE: LibraryGetClassObject() hook for ATL/VS98 support, added by markash
return LibraryGetClassObject(rclsid, riid, ppvObjOut);
#else
return CLASS_E_CLASSNOTAVAILABLE;
#endif
// create the blank object.
//
pv = (void *)new CClassFactory(iIndex);
if (!pv)
return E_OUTOFMEMORY;
// QI for whatever the user has asked for.
//
hr = ((IUnknown *)pv)->QueryInterface(riid, ppvObjOut);
((IUnknown *)pv)->Release();
return hr;
}
//=--------------------------------------------------------------------------=
// IndexOfOleObject
//=--------------------------------------------------------------------------=
// returns the index in our global table of objects of the given CLSID. if
// it's not a supported object, then we return -1
//
// Parameters:
// REFCLSID - [in] duh.
//
// Output:
// int - >= 0 is index into global table, -1 means not supported
//
// Notes:
//
int IndexOfOleObject
(
REFCLSID rclsid
)
{
int x = 0;
// an object is creatable if it's CLSID is in the table of all allowable object
// types.
//
while (!ISEMPTYOBJECT(x)) {
if (OBJECTISCREATABLE(x)) {
if (rclsid == CLSIDOFOBJECT(x))
return x;
}
x++;
}
return -1;
}
//=--------------------------------------------------------------------------=
// RegisterAllObjects
//=--------------------------------------------------------------------------=
// registers all the objects for the given automation server.
//
// Parameters:
// none
//
// Output:
// HERSULT - S_OK, E_FAIL
//
// Notes:
//
HRESULT RegisterAllObjects
(
void
)
{
ITypeLib *pTypeLib = NULL;
HRESULT hr;
DWORD dwPathLen;
char szTmp[MAX_PATH];
char szHelpPath[MAX_PATH];
int x = 0;
BOOL fHelpFile = FALSE;
long lMajor = -1, lMinor = -1;
UINT cbWinHelpPath = 0;
OLECHAR *pwszHelpPath;
BSTR bstrTypeLibName = NULL;
WORD wFlags = 0;
#if DEBUG
BOOL fCtlFlagFound = FALSE;
BOOL fCtlTypeLib = FALSE;
int iCatID;
BOOL fCatIDFound = FALSE;
#endif
// Load and register our type library.
//
if (g_fServerHasTypeLibrary) {
TLIBATTR *ptlattr;
dwPathLen = GetModuleFileName(g_hInstance, szTmp, MAX_PATH);
bstrTypeLibName = BSTRFROMANSI(szTmp);
hr = LoadTypeLib(bstrTypeLibName, &pTypeLib);
if (FAILED(hr)) goto CleanUp;
pTypeLib->GetLibAttr(&ptlattr);
lMajor = ptlattr->wMajorVerNum;
lMinor = ptlattr->wMinorVerNum;
#if DEBUG
fCtlTypeLib = ptlattr->wLibFlags & LIBFLAG_FCONTROL;
#endif
pTypeLib->ReleaseTLibAttr(ptlattr);
}
// loop through all of our creatable objects [those that have a clsid in
// our global table] and register them.
//
while (!ISEMPTYOBJECT(x)) {
if (!OBJECTISCREATABLE(x)) {
x++;
continue;
}
// Check to see if there is a help file for the object
// If so, look for it in the Windows\Help directory. If a help file is
// found for any object in the Windows\Help directory, then we'll register it with
// the typelib. Once we find the first help file we stop looking.
//
if (!fHelpFile) {
if (cbWinHelpPath == 0) {
cbWinHelpPath = GetHelpFilePath(szHelpPath, MAX_PATH);
lstrcat(szHelpPath, "\\");
cbWinHelpPath++;
}
ASSERT(cbWinHelpPath > 0, "Help path is zero length");
ASSERT(cbWinHelpPath + ((HELPFILEOFOBJECT(x)) ? lstrlen(HELPFILEOFOBJECT(x)) : 0) < MAX_PATH, "Help file path exceeds maxiumu path");
// Make sure we have a non-NULL pointer before calling lstrlen
// and check that the helpfile exists and isn't a directory
//
if (HELPFILEOFOBJECT(x) && lstrlen(HELPFILEOFOBJECT(x)) > 0) {
lstrcpyn(szHelpPath + cbWinHelpPath, HELPFILEOFOBJECT(x), lstrlen(HELPFILEOFOBJECT(x)) + 1);
fHelpFile = ((GetFileAttributes(szHelpPath) & FILE_ATTRIBUTE_DIRECTORY) == 0);
}
// Once we've determined the help file exists, terminate after the filename
// since all we care to register is the path. Not the path and filename. We also
// don't want the terminating '\', so subtract 1 from cbWinHelpPath.
//
if (fHelpFile)
szHelpPath[cbWinHelpPath - 1] = '\0';
else
szHelpPath[cbWinHelpPath] = '\0';
}
// depending on the object type, register different pieces of information
//
switch (g_ObjectInfo[x].usType) {
// for both simple co-creatable objects and proeprty pages, do the same
// thing
//
case OI_UNKNOWN:
case OI_PROPERTYPAGE:
#if DEBUG
// For debug builds, verify that the cached object data matches the typeinfo attributes for that object
//
hr = GetTypeFlagsForGuid(pTypeLib, CLSIDOFOBJECT(x), &wFlags);
if (SUCCEEDED(hr))
{
if (NULL != CREATEFNOFOBJECT(x))
{
ASSERT(wFlags & TYPEFLAG_FCANCREATE, "Create flag not found on creatable object");
}
else
{
ASSERT(!(wFlags & TYPEFLAG_FCANCREATE), "Create flag found on non-creatable object");
}
}
#endif
RegisterUnknownObject(NAMEOFOBJECT(x), LABELOFOBJECT(x), CLSIDOFOBJECT(x), ISAPARTMENTMODELTHREADED(x));
break;
case OI_AUTOMATION:
#if DEBUG
// For debug builds, verify that the cached object data matches the typeinfo attributes for that object
//
hr = GetTypeFlagsForGuid(pTypeLib, CLSIDOFOBJECT(x), &wFlags);
if (SUCCEEDED(hr))
{
if (NULL != CREATEFNOFOBJECT(x))
{
ASSERT(wFlags & TYPEFLAG_FCANCREATE, "Create flag not found on creatable object");
}
else
{
ASSERT(!(wFlags & TYPEFLAG_FCANCREATE), "Create flag found on non-creatable object");
}
}
#endif
RegisterAutomationObject(g_szLibName, NAMEOFOBJECT(x), LABELOFOBJECT(x), VERSIONOFOBJECT(x),
lMajor, lMinor, *g_pLibid, CLSIDOFOBJECT(x), ISAPARTMENTMODELTHREADED(x));
break;
case OI_CONTROL:
{
BOOL fControl = TRUE;
// Go to the TypeInfo for the object and see if it has the control bit set
// We should only add the Control and ToolboxBitmap32 registry key for objects
// that have the Control bit set in their typelib.
//
// Note: If the TypeLib can't be found or there is an error attempting to
// retrieve the control flag, we default to setting the Control bit.
// Since we're attempting to register the object as a control our
// default assumption will be that it is a control.
//
hr = GetTypeFlagsForGuid(pTypeLib, CLSIDOFOBJECT(x), &wFlags);
if (SUCCEEDED(hr))
{
fControl = wFlags & TYPEFLAG_FCONTROL;
#if DEBUG
fCtlFlagFound |= fControl;
// For debug builds, verify that the cached object data matches the typeinfo attributes for that object
//
if (NULL != CREATEFNOFOBJECT(x))
{
ASSERT(wFlags & TYPEFLAG_FCANCREATE, "Create flag not found on creatable object");
}
else
{
ASSERT(!(wFlags & TYPEFLAG_FCANCREATE), "Create flag found on non-creatable object");
}
#endif
}
RegisterControlObject(g_szLibName, NAMEOFOBJECT(x), LABELOFOBJECT(x),
VERSIONOFOBJECT(x), VERSIONMINOROFOBJECT(x),
lMajor, lMinor,
*g_pLibid, CLSIDOFOBJECT(x), OLEMISCFLAGSOFCONTROL(x),
BITMAPIDOFCONTROL(x), ISAPARTMENTMODELTHREADED(x),
fControl);
}
break;
}
x++;
}
// Make sure the if a TypeLib control attribute was found, a coclass control attribute is also found;
// or neither is found. You can't have one without the other.
//
ASSERT((fCtlTypeLib && fCtlFlagFound) ||
(!fCtlTypeLib && !fCtlFlagFound), "TypeLib and coclass control attributes not set consistently");
if (g_fServerHasTypeLibrary)
{
ASSERT(pTypeLib, "TypeLib pointer is NULL");
ASSERT(SysStringLen(bstrTypeLibName) > 0, "TypeLib name is invalid");
if (fHelpFile)
pwszHelpPath = OLESTRFROMANSI(szHelpPath);
// Note: we have to pass in an empty string instead of NULL if fHelpFile==FALSE, because
// otherwise OLEAUT leaves the old value of the HELPDIR key there (stephwe 9/97)
hr = RegisterTypeLib(pTypeLib, bstrTypeLibName, fHelpFile ? pwszHelpPath : L"");
if (fHelpFile)
CoTaskMemFree(pwszHelpPath);
pTypeLib->Release();
if (FAILED(hr)) goto CleanUp;
}
#if DEBUG
// Make sure there is consistency between the Control flags set in the typelib
// versus the CATID_Control attribute.
//
for (iCatID=0; iCatID < g_ctCATIDImplemented; iCatID++)
{
if (IsEqualGUID((REFGUID) *g_rgCATIDImplemented[iCatID], (REFGUID) CATID_Control))
{
fCatIDFound = TRUE;
break;
}
}
ASSERT((fCatIDFound && fCtlFlagFound) ||
(!fCatIDFound && !fCtlFlagFound), "Typelib control attribute not in sync with CATID_Control setting");
#endif
hr = S_OK;
CleanUp:
SysFreeString(bstrTypeLibName);
return hr;
}
//=--------------------------------------------------------------------------=
// UnregisterAllObjects
//=--------------------------------------------------------------------------=
// un-registers all the objects for the given automation server.
//
// Parameters:
// none
//
// Output:
// HRESULT - S_OK
//
// Notes:
// WARNING! You must link with the new version of OLEAUT shipping with
// Visual Basic version 5.0 in order for this function to
// work correctly.
//
HRESULT UnregisterAllObjects
(
void
)
{
HRESULT hr;
int x = 0;
char szTmp[MAX_PATH];
TLIBATTR *ptlibattr = NULL;
ITypeLib *pTypeLib = NULL;
// loop through all of our creatable objects [those that have a clsid in
// our global table] and register them.
//
while (!ISEMPTYOBJECT(x)) {
if (!OBJECTISCREATABLE(x)) {
x++;
continue;
}
switch (g_ObjectInfo[x].usType) {
case OI_UNKNOWN:
case OI_PROPERTYPAGE:
UnregisterUnknownObject(CLSIDOFOBJECT(x), NULL);
break;
case OI_CONTROL:
UnregisterControlObject(g_szLibName, NAMEOFOBJECT(x), VERSIONOFOBJECT(x),
CLSIDOFOBJECT(x));
break;
case OI_AUTOMATION:
UnregisterAutomationObject(g_szLibName, NAMEOFOBJECT(x), VERSIONOFOBJECT(x),
CLSIDOFOBJECT(x));
break;
}
x++;
}
// if we've got one, unregister our type library
if (g_pLibid)
{
GetModuleFileName(g_hInstance, szTmp, MAX_PATH);
MAKE_WIDEPTR_FROMANSI(pwsz, szTmp);
hr = LoadTypeLibEx(pwsz, REGKIND_NONE, &pTypeLib);
if (FAILED(hr)) goto CleanUp;
hr = pTypeLib->GetLibAttr(&ptlibattr);
if (FAILED(hr)) goto CleanUp;
// Call OLEAUT to have it unregister our type library. It will handle
// the case where there is a 16-bit version of the control's typelib
// registered and will only blow away the 32-bit related keys in this case.
//
UnRegisterTypeLib(*g_pLibid, ptlibattr->wMajorVerNum, ptlibattr->wMinorVerNum, ptlibattr->lcid, ptlibattr->syskind);
}
CleanUp:
if (ptlibattr)
pTypeLib->ReleaseTLibAttr(ptlibattr);
RELEASE_OBJECT(pTypeLib);
return S_OK;
}