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- //----------------------------------------------------------------------------
- // ObjectConnections - (C) Copyright 1994 by Borland International
- // Simple EXE to load and run a DLL server
- //----------------------------------------------------------------------------
-
- #define STRICT
- #include <windows.h>
- #include <shellapi.h>
- #include <ole2.h>
-
- #define _IFUNC STDMETHODCALLTYPE
- typedef HRESULT STDAPICALLTYPE (*TDllGetClassObject)(const GUID far& clsid,
- const GUID far& iid,
- void far* far* retObj);
- class TDummy : public IUnknown {
- HRESULT _IFUNC QueryInterface(const GUID far& iid, void far* far* pif)
- {*pif = 0; return iid==IID_NULL ? NOERROR : ResultFromScode(E_NOINTERFACE);}
- unsigned long _IFUNC AddRef() {return 1;}
- unsigned long _IFUNC Release(){return 0;}
- };
-
- int PASCAL
- WinMain(HINSTANCE/*hInst*/, HINSTANCE/*prev*/, char far* cmdLine, int/*show*/)
- {
- char* error = 0;
- const int guidChars = 38;
- const int guidKeySize = sizeof("CLSID\\")-1;
- char guidBuf[guidKeySize + guidChars + 1] = "CLSID\\";
- const int pathSize = 260;
- char path[pathSize];
- long guidBufSize = guidChars + 1;
- long pathBufSize = pathSize;
- long rstat;
- HKEY key;
- if (!cmdLine || !cmdLine[0]) {
- cmdLine = "Error";
- error = "Command line must have DLL ProgId";
- } else if (::RegOpenKey(HKEY_CLASSES_ROOT, cmdLine, &key) != ERROR_SUCCESS) {
- error = "ProgId not found in Registry";
- } else {
- rstat = ::RegQueryValue(key, "CLSID", guidBuf+guidKeySize, &guidBufSize);
- ::RegCloseKey(key);
- if (rstat != ERROR_SUCCESS ||
- ::RegOpenKey(HKEY_CLASSES_ROOT, guidBuf, &key) != ERROR_SUCCESS) {
- error = "CLSID not found in Registry";
- } else {
- rstat = ::RegQueryValue(key, "InprocServer", path, &pathBufSize);
- ::RegCloseKey(key);
- if (rstat != ERROR_SUCCESS) {
- error = "No InprocServer specified in Registry";
- } else {
- ::OleInitialize(0);
- HINSTANCE hLib = ::LoadLibrary(path);
- if (hLib < HINSTANCE_ERROR) {
- error = "Could not load library";
- } else {
- TDllGetClassObject entry = (TDllGetClassObject)::GetProcAddress(hLib,
- "DllGetClassObject");
- if (!entry) {
- error = "Could not find entry point";
- } else {
- IClassFactory* factory;
- GUID guid;
- ::CLSIDFromString(guidBuf+guidKeySize, &guid);
- HRESULT stat = (*entry)(guid, IID_IClassFactory,
- (void far*far*)&factory);
- if (stat) {
- error = "Could not obtain factory";
- } else {
- IUnknown* ifc;
- stat = factory->CreateInstance(&TDummy(), IID_IUnknown,
- (void far*far*)&ifc);
- factory->Release();
- if (stat) {
- error = "Could not create object";
- } else {
- long refs = ifc->Release();
- char buf[30];
- wsprintf(buf, "Reference count = %li", refs);
- if (refs != 0)
- error = buf;
- }
- }
- }
- ::FreeLibrary(hLib);
- }
- ::OleUninitialize();
- }
- }
- }
- if (error)
- ::MessageBox(0, error, "DLLRUN - (c) Borland 1994", MB_OK);
- return error != 0;
- }
-