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Articles / Desktop Programming / WTL

Form Designer

26 Jul 2021CPOL24 min read 349.7K   82.5K   230  
Component for adding scriptable forms capabilities to an application.
// DDForms.cpp : Implementation of DLL Exports.
//
// Author : David Shepherd
//			Copyright (c) 2002, DaeDoe-Software
//
/////////////////////////////////////////////////////////////////////////////

// Note: Proxy/Stub Information
//      To build a separate proxy/stub DLL,
//      run nmake -f DDFormsps.mk in the project directory.

#include "stdafx.h"
#include "resource.h"
#include <initguid.h>
#include "DDForms.h"

#include "DDForms_i.c"
#include "Script.h"
#include "SimpleScriptEditor.h"
#include "PropPageSimpleScriptEditor.h"
#include "FormEditor.h"
#include "PropPageFormEditor.h"
#include "FormPropertiesAccessor.h"
#include "PropPageExtended.h"
#include "FormViewer.h"
#include "PropPageFormViewer.h"
#include "ViewableForm.h"

CComModule _Module;

BEGIN_OBJECT_MAP(ObjectMap)
OBJECT_ENTRY_NON_CREATEABLE(CScript)
OBJECT_ENTRY(CLSID_SimpleScriptEditor, AxSimpleScriptEditor::CSimpleScriptEditor)
OBJECT_ENTRY(CLSID_PropPageSimpleScriptEditor, CPropPageSimpleScriptEditor)
OBJECT_ENTRY(CLSID_FormEditor, AxFormEditor::CFormEditor)
OBJECT_ENTRY(CLSID_PropPageFormEditor, CPropPageFormEditor)
OBJECT_ENTRY_NON_CREATEABLE(CFormPropertiesAccessor)
OBJECT_ENTRY(CLSID_PropPageExtended, CPropPageExtended)
OBJECT_ENTRY(CLSID_FormViewer, AxFormViewer::CFormViewer)
OBJECT_ENTRY(CLSID_PropPageFormViewer, CPropPageFormViewer)
OBJECT_ENTRY_NON_CREATEABLE(CViewableForm)
END_OBJECT_MAP()

/////////////////////////////////////////////////////////////////////////////
// new handler

int NewHandler(size_t size)
{
	// ensure new throws on failure
	ATLTRACE(_T("NewHandler(%d) throwing std::bad_alloc()\n"),size);
	ATLASSERT(FALSE);
	throw std::bad_alloc();
	return 0;
}

/////////////////////////////////////////////////////////////////////////////
// DLL Entry Point

extern "C"
BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID /*lpReserved*/)
{
	_PNH OldNewHandler=NULL;
    if (dwReason == DLL_PROCESS_ATTACH)
    {
        _Module.Init(ObjectMap, hInstance, &LIBID_DDFORMSLib);
        DisableThreadLibraryCalls(hInstance);
		// set the new handler
		OldNewHandler=_set_new_handler(NewHandler);
    }
    else if (dwReason == DLL_PROCESS_DETACH)
	{
		// restore the new handler
		_set_new_handler(OldNewHandler);
        _Module.Term();
	}
    return TRUE;    // ok
}

/////////////////////////////////////////////////////////////////////////////
// Used to determine whether the DLL can be unloaded by OLE

STDAPI DllCanUnloadNow(void)
{
    return (_Module.GetLockCount()==0) ? S_OK : S_FALSE;
}

/////////////////////////////////////////////////////////////////////////////
// Returns a class factory to create an object of the requested type

STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID* ppv)
{
    return _Module.GetClassObject(rclsid, riid, ppv);
}

/////////////////////////////////////////////////////////////////////////////
// DllRegisterServer - Adds entries to the system registry

STDAPI DllRegisterServer(void)
{
    // registers object, typelib and all interfaces in typelib
    return _Module.RegisterServer(TRUE);
}

/////////////////////////////////////////////////////////////////////////////
// DllUnregisterServer - Removes entries from the system registry

STDAPI DllUnregisterServer(void)
{
    return _Module.UnregisterServer(TRUE);
}

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


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