Initial commit: Complete open-source Decal rebuild

All 5 phases of the open-source Decal rebuild:

Phase 1: 14 decompiled .NET projects (Interop.*, Adapter, FileService, DecalUtil)
Phase 2: 10 native DLLs rewritten as C# COM servers with matching GUIDs
  - DecalDat, DHS, SpellFilter, DecalInput, DecalNet, DecalFilters
  - Decal.Core, DecalControls, DecalRender, D3DService
Phase 3: C++ shims for Inject.DLL (D3D9 hooking) and LauncherHook.DLL
Phase 4: DenAgent WinForms tray application
Phase 5: WiX installer and build script

25 C# projects building with 0 errors.
Native C++ projects require VS 2022 + Windows SDK (x86).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Native/Inject/SimpleBar.cpp

@@ -0,0 +1,146 @@
+// SimpleBar.cpp : Implementation of cSimpleBar
+#include "stdafx.h"
+#include "Inject.h"
+#include "SimpleBar.h"
+
+/////////////////////////////////////////////////////////////////////////////
+// cSimpleBar
+
+void cSimpleBar::onCreate()
+{
+	CComPtr< IPluginSite > pPlugin;
+	m_pSite->get_PluginSite( &pPlugin );
+
+	pPlugin->LoadBitmapFile( _bstr_t( _T( "Switch-Active.bmp" ) ), &m_pSwitch );
+	pPlugin->LoadBitmapFile( _bstr_t( _T( "Switch-Inactive.bmp" ) ), &m_pSwitchDisabled );
+	BSTR bstrFontName;
+	pPlugin->get_FontName(&bstrFontName);
+	pPlugin->CreateFont( bstrFontName /*_bstr_t( _T( "Times New Roman" ) )*/, 14, 0, &m_pFont );
+	m_nMinMax = 0;
+
+	m_pSite->put_Transparent( VARIANT_FALSE );
+}
+
+void cSimpleBar::onDestroy()
+{
+	m_pSwitch.Release();
+	m_pSwitchDisabled.Release();
+	m_pFont.Release();
+}
+
+#define SWITCH_STRETCH_START 25
+#define SWITCH_STRETCH_END 55
+
+#define TEXT_ICON_GAP 4
+#define END_GAP 8
+
+#define ICON_TOP 2
+#define TEXT_TOP 2
+
+#define ICON_SIZE 16
+
+STDMETHODIMP cSimpleBar::Render(ICanvas *pCanvas)
+{
+	RECT rc;
+	m_pSite->get_Position( &rc );
+
+	int nWidth = rc.right - rc.left;
+
+	// First draw the background image
+	static POINT ptOrg = { 0, 0 };
+	if( m_bSelected )
+		m_pSwitch->StretchBlt( pCanvas, &ptOrg, nWidth, SWITCH_STRETCH_START, SWITCH_STRETCH_END );
+	else
+		m_pSwitchDisabled->StretchBlt( pCanvas, &ptOrg, nWidth, SWITCH_STRETCH_START, SWITCH_STRETCH_END );
+
+	// Next the icon
+	CComPtr< IPluginSite > pPlugin;
+	m_pSite->get_PluginSite( &pPlugin );
+
+	CComPtr< IIconCache > pIcons;
+	static SIZE szIcon = { ICON_SIZE, ICON_SIZE };
+	pPlugin->GetIconCache( &szIcon, &pIcons );
+
+	static POINT ptIcon = { 0, ICON_TOP };
+	pIcons->DrawIcon( &ptIcon, m_nIconID, m_nIconModule, pCanvas );
+
+	if (m_nMinMax == eStateMax)
+	{
+		static POINT ptText = { ICON_SIZE + TEXT_ICON_GAP, TEXT_TOP };
+		m_pFont->DrawText( &ptText, m_strLabel, ( m_bSelected ) ? RGB( 0, 0, 0 ) : RGB( 255, 255, 255 ), pCanvas );
+	}
+
+	_ASSERTMEM( _CrtCheckMemory( ) );
+
+	return S_OK;
+}
+
+STDMETHODIMP cSimpleBar::MouseEnter(MouseState *)
+{
+	m_bSelected = VARIANT_TRUE;
+	m_pSite->Invalidate();
+
+	return S_OK;
+}
+
+STDMETHODIMP cSimpleBar::MouseExit(MouseState *)
+{
+	m_bSelected = VARIANT_FALSE;
+	m_pSite->Invalidate();
+
+	return S_OK;
+}
+
+STDMETHODIMP cSimpleBar::MouseDown(MouseState *)
+{
+	CComPtr< IRootLayer > pRoot;
+
+	m_pSite->GetParentSink( IID_IRootLayer, reinterpret_cast< void ** >( &pRoot ) );
+
+	_ASSERTE( pRoot.p != NULL );
+
+	long nID;
+	m_pSite->get_ID( &nID );
+	pRoot->SelectBar( nID );
+
+	return S_OK;
+}
+
+STDMETHODIMP cSimpleBar::get_RenderWidth(long *nWidth)
+{
+	if (m_nMinMax == eStateMin)
+	{
+		*nWidth = 20; 
+	}
+	else
+	{
+	  SIZE sz;
+		m_pFont->MeasureText( m_strLabel, &sz );
+
+		// Add in the requested size to the parent
+		*nWidth = sz.cx + TEXT_ICON_GAP + END_GAP + ICON_SIZE;
+	}
+	return S_OK;
+}
+
+STDMETHODIMP cSimpleBar::get_Params(ViewParams *pVal)
+{
+	USES_CONVERSION;
+
+	pVal->icon = m_nIconID;
+	pVal->iconLibrary = m_nIconModule;
+	pVal->label = OLE2BSTR( m_strLabel );
+	pVal->state = m_nMinMax;
+
+	return S_OK;
+}
+
+STDMETHODIMP cSimpleBar::put_Params(ViewParams *newVal)
+{
+	m_nIconID = newVal->icon;
+	m_nIconModule = newVal->iconLibrary;
+	m_strLabel = newVal->label;
+	m_nMinMax = newVal->state;
+
+	return S_OK;
+}