HELLO.H (HELLO OLE Sample)

#ifdef WIN32

#ifdef UNICODE

#define FROM_OLE_STRING(str) str

#define TO_OLE_STRING(str) str

#else

#define FROM_OLE_STRING(str) ConvertToAnsi(str)

char* ConvertToAnsi(OLECHAR FAR* szW);

#define TO_OLE_STRING(str) ConvertToUnicode(str)

OLECHAR* ConvertToUnicode(char FAR* szA);

// Maximum length of string that can be converted between Ansi & Unicode

#define STRCONVERT_MAXLEN 300

#endif

#else // WIN16

#define APIENTRY far pascal

#define TCHAR char

#define TEXT(sz) sz

#define FROM_OLE_STRING(str) str

#define TO_OLE_STRING(str) str

#define LPTSTR LPSTR

// Windows NT defines the following in windowsx.h

#define GET_WM_COMMAND_ID(w,l) (w)

#define GET_WM_COMMAND_CMD(w,l) HIWORD(l)

#define GET_WM_COMMAND_HWND(w,l) LOWORD(l)

#endif

#define STRICT

// Resource IDs

#define IDD_MAINWINDOW 101

#define IDI_ICON 102

// Child window IDs

#define IDC_HELLODISPLAY 101

#define IDC_SAYHELLO 102

// MAX len of string table entries

#define STR_LEN 100

// String table constants

#define IDS_Name 1

#define IDS_HelloMessage 2

#define IDS_ErrorLoadingTypeLib 3

#define IDS_SayHello 4

#define IDS_ProgID 5

#define IDS_Unexpected 1001

// SCODEs for the Hello Application. This is required for vtable-binding

// Automation objects want to return custom HRESULTs. All the OLE-defined

// FACILITY_ITF codes have a code value which lies in the region 0x0000-0x01FFF.

// While it is legal for the definer to use any code, it is highly recommended

// that only code values in the range 0x0200-0xFFFF be used, as this will reduce the

// possiblity of accidental confusion with any OLE-defined errors.

#define HELLO_E_FIRST MAKE_SCODE(SEVERITY_ERROR, FACILITY_ITF, 0x0200)

#define HELLO_E_UNEXPECTED (HELLO_E_FIRST + 0x0)

// Unexpected error

// Number of SCODEs

#define SCODE_COUNT 1

// Function prototypes

int APIENTRY WinMain (HINSTANCE, HINSTANCE, LPSTR, int);

BOOL InitApplication (HINSTANCE);

BOOL InitInstance (HINSTANCE);

BOOL ProcessCmdLine(LPSTR lpCmdLine, LPDWORD pdwRegisterCF, LPDWORD pdwRegisterActiveObject, int nCmdShow);

• oid Uninitialize(DWORD dwRegisterCF, DWORD dwRegisterActiveObject);

HRESULT LoadTypeInfo(ITypeInfo FAR* FAR* pptinfo, REFCLSID clsid);

#ifdef WIN16

extern "C" LRESULT __export CALLBACK MainWndProc (HWND, UINT, WPARAM, LPARAM);

#else

extern "C" LRESULT CALLBACK MainWndProc (HWND, UINT, WPARAM, LPARAM);

#endif

#include "tlb.h"

// ISupportErrorInfo interface implementation

interface CSupportErrorInfo : public ISupportErrorInfo

{

public:

// IUnknown methods

STDMETHOD(QueryInterface)(REFIID riid, LPVOID FAR* ppvObj);

STDMETHOD_(ULONG, AddRef)(void);

STDMETHOD_(ULONG, Release)(void);

// ISupportErrorInfo method

STDMETHOD(InterfaceSupportsErrorInfo)(REFIID riid);

CSupportErrorInfo(IUnknown FAR* punkObject, REFIID riid);

private:

LPUNKNOWN m_punkObject; // IUnknown of Object that implements this interface

GUID m_iid;

};

class FAR CHello : public IHello

{

public:

// IUnknown methods

STDMETHOD(QueryInterface)(REFIID riid, LPVOID FAR* ppvObj);

STDMETHOD_(ULONG, AddRef)(void);

STDMETHOD_(ULONG, Release)(void);

// IDispatch methods

STDMETHOD(GetTypeInfoCount)(UINT FAR* pctinfo);

STDMETHOD(GetTypeInfo)(

UINT itinfo,

LCID lcid,

ITypeInfo FAR* FAR* pptinfo);

STDMETHOD(GetIDsOfNames)(

REFIID riid,

OLECHAR FAR* FAR* rgszNames,

UINT cNames,

LCID lcid,

DISPID FAR* rgdispid);

STDMETHOD(Invoke)(

DISPID dispidMember,

REFIID riid,

LCID lcid,

WORD wFlags,

DISPPARAMS FAR* pdispparams,

VARIANT FAR* pvarResult,

EXCEPINFO FAR* pexcepinfo,

UINT FAR* puArgErr);

// IHello methods

STDMETHOD(get_Application)(IHello FAR* FAR* ppHello);

STDMETHOD(get_FullName)(BSTR FAR* pbstr);

STDMETHOD(get_Name)(BSTR FAR* pbstr);

STDMETHOD(get_Parent)(IHello FAR* FAR* ppHello);

STDMETHOD(put_Visible)(VARIANT_BOOL bVisible);

STDMETHOD(get_Visible)(VARIANT_BOOL FAR* pbool);

STDMETHOD(Quit)();

STDMETHOD(put_HelloMessage)(BSTR bstrMessage);

STDMETHOD(get_HelloMessage)(BSTR FAR* pbstrMessage);

STDMETHOD(SayHello)();

// CHello methods

STDMETHOD(RaiseException)(int nID);

STDMETHOD_(void, ShowWindow)(int nCmdShow);

static HRESULT Create(HINSTANCE hinst, LPTSTR lpszHelloMessage, CHello FAR* FAR* pphello); // Creates and intializes Hello object

CHello();

~CHello();

public:

HWND m_hwnd; // Application window.

HINSTANCE m_hinst; // Hinstance of application.

BSTR m_bstrName; // Name of application.

BSTR m_bstrProgID; // ProgID of application.

private:

LPTYPEINFO m_ptinfo; // Type information of Hello application interface.

BSTR m_bstrHelloMsg; // Hello message

BSTR m_bstrFullName; // Full name of application.

BOOL m_bVisible; // Is window visible?

EXCEPINFO m_excepinfo; // Information to raise an exception on error.

BOOL m_bRaiseException; // Properties and methods use this to signal that an exception is to be raised.

ULONG m_cRef; // Reference count

CSupportErrorInfo m_SupportErrorInfo; // ISupportErrorInfo interface implementation

};

class FAR CHelloCF : public IClassFactory

{

public:

// IUnknown methods

STDMETHOD(QueryInterface)(REFIID riid, LPVOID FAR* ppvObj);

STDMETHOD_(ULONG, AddRef)(void);

STDMETHOD_(ULONG, Release)(void);

// IClassFactory methods

STDMETHOD(CreateInstance)(IUnknown FAR* punkOuter, REFIID riid,

void FAR* FAR* ppv);

STDMETHOD(LockServer)(BOOL fLock);

CHelloCF();

private:

ULONG m_cRef; // Reference count

};

extern CHello FAR* g_phello;

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