Add patch from http://sourceforge.net/p/notepad-plus/patches/648/ by Xileer Torias with comment:

Updated the GetWindowLongPtr and SetWindowLongPtrW nIndex reference as per https://msdn.microsoft.com/en-us/library/windows/desktop/ms633585%28v=vs.85%29.aspx and https://msdn.microsoft.com/en-us/library/windows/desktop/ms644898(v=vs.85).aspx

This alters the function to be compatible with both x86, and x64 as to simplify future x64 builds.

PowerEditor/src/NppBigSwitch.cpp

@@ -65,7 +65,7 @@ LRESULT CALLBACK Notepad_plus_Window::Notepad_plus_Proc(HWND hwnd, UINT Message,
 	switch(Message)
 	{
 		case WM_NCCREATE :	// First message we get the ptr of instantiated object
-							// then stock it into GWL_USERDATA index in order to retrieve afterward
+							// then stock it into GWLP_USERDATA index in order to retrieve afterward
 		{
 			Notepad_plus_Window *pM30ide = (Notepad_plus_Window *)(((LPCREATESTRUCT)lParam)->lpCreateParams);
 			pM30ide->_hSelf = hwnd;
@@ -76,7 +76,7 @@ LRESULT CALLBACK Notepad_plus_Window::Notepad_plus_Proc(HWND hwnd, UINT Message,
 
 		default :
 		{
-			return ((Notepad_plus_Window *)::GetWindowLongPtr(hwnd, GWL_USERDATA))->runProc(hwnd, Message, wParam, lParam);
+			return ((Notepad_plus_Window *)::GetWindowLongPtr(hwnd, GWLP_USERDATA))->runProc(hwnd, Message, wParam, lParam);
 		}
 	}
 }

PowerEditor/src/ScitillaComponent/FindReplaceDlg.cpp

@@ -2238,8 +2238,8 @@ LRESULT FAR PASCAL FindReplaceDlg::finderProc(HWND hwnd, UINT message, WPARAM wP
 {
 	if (message == WM_KEYDOWN && (wParam == VK_DELETE || wParam == VK_RETURN))
 	{
-		ScintillaEditView *pScint = (ScintillaEditView *)(::GetWindowLongPtr(hwnd, GWL_USERDATA));
-		Finder *pFinder = (Finder *)(::GetWindowLongPtr(pScint->getHParent(), GWL_USERDATA));
+		ScintillaEditView *pScint = (ScintillaEditView *)(::GetWindowLongPtr(hwnd, GWLP_USERDATA));
+		Finder *pFinder = (Finder *)(::GetWindowLongPtr(pScint->getHParent(), GWLP_USERDATA));
 		if (wParam == VK_RETURN)
 			pFinder->GotoFoundLine();
 		else // VK_DELETE

PowerEditor/src/ScitillaComponent/ScintillaEditView.cpp

@@ -258,15 +258,15 @@ void ScintillaEditView::init(HINSTANCE hInst, HWND hPere)
 	//Use either Unicode or ANSI setwindowlong, depending on environment
 	if (::IsWindowUnicode(_hSelf))
 	{
-		::SetWindowLongPtrW(_hSelf, GWL_USERDATA, reinterpret_cast<LONG>(this));
+		::SetWindowLongPtrW(_hSelf, GWLP_USERDATA, reinterpret_cast<LONG>(this));
 		_callWindowProc = CallWindowProcW;
-		_scintillaDefaultProc = reinterpret_cast<WNDPROC>(::SetWindowLongPtrW(_hSelf, GWL_WNDPROC, reinterpret_cast<LONG>(scintillaStatic_Proc)));
+		_scintillaDefaultProc = reinterpret_cast<WNDPROC>(::SetWindowLongPtrW(_hSelf, GWLP_WNDPROC, reinterpret_cast<LONG>(scintillaStatic_Proc)));
 	}
 	else 
 	{
-		::SetWindowLongPtrA(_hSelf, GWL_USERDATA, reinterpret_cast<LONG>(this));
+		::SetWindowLongPtrA(_hSelf, GWLP_USERDATA, reinterpret_cast<LONG>(this));
 		_callWindowProc = CallWindowProcA;
-		_scintillaDefaultProc = reinterpret_cast<WNDPROC>(::SetWindowLongPtrA(_hSelf, GWL_WNDPROC, reinterpret_cast<LONG>(scintillaStatic_Proc)));
+		_scintillaDefaultProc = reinterpret_cast<WNDPROC>(::SetWindowLongPtrA(_hSelf, GWLP_WNDPROC, reinterpret_cast<LONG>(scintillaStatic_Proc)));
 	}
 
 	//Get the startup document and make a buffer for it so it can be accessed like a file
@@ -275,7 +275,7 @@ void ScintillaEditView::init(HINSTANCE hInst, HWND hPere)
 
 LRESULT CALLBACK ScintillaEditView::scintillaStatic_Proc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
 {
-	ScintillaEditView *pScint = (ScintillaEditView *)(::GetWindowLongPtr(hwnd, GWL_USERDATA));
+	ScintillaEditView *pScint = (ScintillaEditView *)(::GetWindowLongPtr(hwnd, GWLP_USERDATA));
 
 	if (Message == WM_MOUSEWHEEL || Message == WM_MOUSEHWHEEL)
 	{			
@@ -293,7 +293,7 @@ LRESULT CALLBACK ScintillaEditView::scintillaStatic_Proc(HWND hwnd, UINT Message
 		if (isSynpnatic || makeTouchPadCompetible)
 			return (pScint->scintillaNew_Proc(hwnd, Message, wParam, lParam));
 
-		ScintillaEditView *pScintillaOnMouse = (ScintillaEditView *)(::GetWindowLongPtr(hwndOnMouse, GWL_USERDATA));
+		ScintillaEditView *pScintillaOnMouse = (ScintillaEditView *)(::GetWindowLongPtr(hwndOnMouse, GWLP_USERDATA));
 		if (pScintillaOnMouse != pScint)
 			return ::SendMessage(hwndOnMouse, Message, wParam, lParam);
 	}

PowerEditor/src/WinControls/AboutDlg/URLCtrl.h

@@ -53,7 +53,7 @@ protected :
     bool  _clicking;
 
     static LRESULT CALLBACK URLCtrlProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam){
-        return ((URLCtrl *)(::GetWindowLongPtr(hwnd, GWL_USERDATA)))->runProc(hwnd, Message, wParam, lParam);
+        return ((URLCtrl *)(::GetWindowLongPtr(hwnd, GWLP_USERDATA)))->runProc(hwnd, Message, wParam, lParam);
     };
     LRESULT runProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam);
 };

PowerEditor/src/WinControls/AnsiCharPanel/ListView.h

@@ -51,7 +51,7 @@ protected:
 	LRESULT runProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam);
 
 	static LRESULT CALLBACK staticProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam) {
-		return (((ListView *)(::GetWindowLongPtr(hwnd, GWL_USERDATA)))->runProc(hwnd, Message, wParam, lParam));
+		return (((ListView *)(::GetWindowLongPtr(hwnd, GWLP_USERDATA)))->runProc(hwnd, Message, wParam, lParam));
 	};
 };
 

PowerEditor/src/WinControls/ColourPicker/ColourPicker.h

@@ -55,7 +55,7 @@ private :
 	bool _isEnabled;
 
     static LRESULT CALLBACK staticWinProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam) {
-        return (((ColourPicker *)(::GetWindowLongPtr(hwnd, GWL_USERDATA)))->runProc(Message, wParam, lParam));
+        return (((ColourPicker *)(::GetWindowLongPtr(hwnd, GWLP_USERDATA)))->runProc(Message, wParam, lParam));
     };
 	LRESULT runProc(UINT Message, WPARAM wParam, LPARAM lParam);
     void drawForeground(HDC hDC);

PowerEditor/src/WinControls/ColourPicker/ColourPopup.cpp

@@ -77,7 +77,7 @@ BOOL CALLBACK ColourPopup::dlgProc(HWND hwnd, UINT message, WPARAM wParam, LPARA
 
 		default :
 		{
-			ColourPopup *pColourPopup = reinterpret_cast<ColourPopup *>(::GetWindowLongPtr(hwnd, GWL_USERDATA));
+			ColourPopup *pColourPopup = reinterpret_cast<ColourPopup *>(::GetWindowLongPtr(hwnd, GWLP_USERDATA));
 			if (!pColourPopup)
 				return FALSE;
 			return pColourPopup->run_dlgProc(message, wParam, lParam);

PowerEditor/src/WinControls/ColourPicker/WordStyleDlg.h

@@ -67,7 +67,7 @@ private :
 	WNDPROC _oldProc;
 
 	static BOOL CALLBACK staticProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam){
-		ColourStaticTextHooker *pColourStaticTextHooker = reinterpret_cast<ColourStaticTextHooker *>(::GetWindowLongPtr(hwnd, GWL_USERDATA));
+		ColourStaticTextHooker *pColourStaticTextHooker = reinterpret_cast<ColourStaticTextHooker *>(::GetWindowLongPtr(hwnd, GWLP_USERDATA));
 		return pColourStaticTextHooker->colourStaticProc(hwnd, message, wParam, lParam);
 	}; 
 	BOOL CALLBACK colourStaticProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam);

PowerEditor/src/WinControls/DockingWnd/DockingCont.h

@@ -155,13 +155,13 @@ protected :
 	// Subclassing caption
 	LRESULT runProcCaption(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam);
 	static LRESULT CALLBACK wndCaptionProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam) {
-		return (((DockingCont *)(::GetWindowLongPtr(hwnd, GWL_USERDATA)))->runProcCaption(hwnd, Message, wParam, lParam));
+		return (((DockingCont *)(::GetWindowLongPtr(hwnd, GWLP_USERDATA)))->runProcCaption(hwnd, Message, wParam, lParam));
 	};
 
 	// Subclassing tab
 	LRESULT runProcTab(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam);
 	static LRESULT CALLBACK wndTabProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam) {
-		return (((DockingCont *)(::GetWindowLongPtr(hwnd, GWL_USERDATA)))->runProcTab(hwnd, Message, wParam, lParam));
+		return (((DockingCont *)(::GetWindowLongPtr(hwnd, GWLP_USERDATA)))->runProcTab(hwnd, Message, wParam, lParam));
 	};
 
     virtual BOOL CALLBACK run_dlgProc(UINT message, WPARAM wParam, LPARAM lParam);

PowerEditor/src/WinControls/DockingWnd/DockingManager.cpp

@@ -45,7 +45,7 @@ LRESULT CALLBACK FocusWndProc(int nCode, WPARAM wParam, LPARAM lParam);
 // Callback function that handles messages (to test focus)
 LRESULT CALLBACK FocusWndProc(int nCode, WPARAM wParam, LPARAM lParam) {
 	if (nCode == HC_ACTION && hWndServer) {
-		DockingManager *pDockingManager = (DockingManager *)::GetWindowLongPtr(hWndServer, GWL_USERDATA);
+		DockingManager *pDockingManager = (DockingManager *)::GetWindowLongPtr(hWndServer, GWLP_USERDATA);
 		if (pDockingManager) {
 			vector<DockingCont*> & vcontainer = pDockingManager->getContainerInfo();
 			CWPSTRUCT * pCwp = (CWPSTRUCT*)lParam;
@@ -187,7 +187,7 @@ LRESULT CALLBACK DockingManager::staticWinProc(HWND hwnd, UINT message, WPARAM w
 			return TRUE;
 
 		default :
-			pDockingManager = (DockingManager *)::GetWindowLongPtr(hwnd, GWL_USERDATA);
+			pDockingManager = (DockingManager *)::GetWindowLongPtr(hwnd, GWLP_USERDATA);
 			if (!pDockingManager)
 				return ::DefWindowProc(hwnd, message, wParam, lParam);
 			return pDockingManager->runProc(hwnd, message, wParam, lParam);
@@ -711,7 +711,7 @@ LRESULT DockingManager::SendNotify(HWND hWnd, UINT message)
 	nmhdr.hwndFrom	= _hParent;
 	nmhdr.idFrom	= ::GetDlgCtrlID(_hParent);
 	::SendMessage(hWnd, WM_NOTIFY, nmhdr.idFrom, (LPARAM)&nmhdr);
-	return ::GetWindowLongPtr(hWnd, DWL_MSGRESULT);
+	return ::GetWindowLongPtr(hWnd, DWLP_MSGRESULT);
 }
 
 void DockingManager::setDockedContSize(int iCont, int iSize)

PowerEditor/src/WinControls/DockingWnd/DockingSplitter.cpp

@@ -135,7 +135,7 @@ LRESULT CALLBACK DockingSplitter::staticWinProc(HWND hwnd, UINT message, WPARAM
 			return TRUE;
 
 		default :
-			pDockingSplitter = (DockingSplitter *)::GetWindowLongPtr(hwnd, GWL_USERDATA);
+			pDockingSplitter = (DockingSplitter *)::GetWindowLongPtr(hwnd, GWLP_USERDATA);
 			if (!pDockingSplitter)
 				return ::DefWindowProc(hwnd, message, wParam, lParam);
 			return pDockingSplitter->runProc(hwnd, message, wParam, lParam);

PowerEditor/src/WinControls/DockingWnd/Gripper.cpp

@@ -178,7 +178,7 @@ LRESULT CALLBACK Gripper::staticWinProc(HWND hwnd, UINT message, WPARAM wParam,
 			return TRUE;
 
 		default :
-			pDlgMoving = (Gripper *)::GetWindowLongPtr(hwnd, GWL_USERDATA);
+			pDlgMoving = (Gripper *)::GetWindowLongPtr(hwnd, GWLP_USERDATA);
 			if (!pDlgMoving)
 				return ::DefWindowProc(hwnd, message, wParam, lParam);
 			return pDlgMoving->runProc(message, wParam, lParam);

PowerEditor/src/WinControls/DocumentMap/documentMap.cpp

@@ -440,8 +440,8 @@ BOOL CALLBACK ViewZoneDlg::run_dlgProc(UINT message, WPARAM wParam, LPARAM lPara
         case WM_INITDIALOG :
 		{
 			_viewZoneCanvas = ::GetDlgItem(_hSelf, IDC_VIEWZONECANVAS);
-			::SetWindowLongPtrW(_viewZoneCanvas, GWL_USERDATA, reinterpret_cast<LONG>(this));
-			_canvasDefaultProc = reinterpret_cast<WNDPROC>(::SetWindowLongPtr(_viewZoneCanvas, GWL_WNDPROC, reinterpret_cast<LONG>(canvasStaticProc)));
+			::SetWindowLongPtrW(_viewZoneCanvas, GWLP_USERDATA, reinterpret_cast<LONG>(this));
+			_canvasDefaultProc = reinterpret_cast<WNDPROC>(::SetWindowLongPtr(_viewZoneCanvas, GWLP_WNDPROC, reinterpret_cast<LONG>(canvasStaticProc)));
 			return TRUE;
 		}
 
@@ -492,7 +492,7 @@ BOOL CALLBACK ViewZoneDlg::run_dlgProc(UINT message, WPARAM wParam, LPARAM lPara
 
 BOOL CALLBACK ViewZoneDlg::canvasStaticProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) 
 {
-	ViewZoneDlg *pViewZoneDlg = reinterpret_cast<ViewZoneDlg *>(::GetWindowLongPtr(hwnd, GWL_USERDATA));
+	ViewZoneDlg *pViewZoneDlg = reinterpret_cast<ViewZoneDlg *>(::GetWindowLongPtr(hwnd, GWLP_USERDATA));
 	if (!pViewZoneDlg)
 		return FALSE;
 	return pViewZoneDlg->canvas_runProc(hwnd, message, wParam, lParam);

PowerEditor/src/WinControls/FunctionList/functionListPanel.cpp

@@ -572,7 +572,7 @@ BOOL CALLBACK FunctionListPanel::run_dlgProc(UINT message, WPARAM wParam, LPARAM
 			_hToolbarMenu = CreateWindowEx(0,TOOLBARCLASSNAME,NULL, style,
 								   0,0,0,0,_hSelf,(HMENU)0, _hInst, NULL);
 			
-			//::GetWindowLongPtr(_hToolbarMenu, GWL_WNDPROC);
+			//::GetWindowLongPtr(_hToolbarMenu, GWLP_WNDPROC);
 			oldFunclstToolbarProc = (WNDPROC)::SetWindowLongPtr(_hToolbarMenu, GWLP_WNDPROC, (LONG_PTR)funclstToolbarProc);
 			TBBUTTON tbButtons[3];
 

PowerEditor/src/WinControls/OpenSaveFileDialog/FileDialog.cpp

@@ -367,7 +367,7 @@ UINT_PTR CALLBACK FileDialog::OFNHookProc(HWND hWnd, UINT uMsg, WPARAM wParam, L
 			}
 
 			// Don't touch the following 3 lines, they are cursed !!!
-			oldProc = (WNDPROC)::GetWindowLongPtr(hFileDlg, GWL_WNDPROC);
+			oldProc = (WNDPROC)::GetWindowLongPtr(hFileDlg, GWLP_WNDPROC);
 			if ((long)oldProc > 0)
 				::SetWindowLongPtr(hFileDlg, GWLP_WNDPROC, (LONG_PTR)fileDlgProc);
 
@@ -376,7 +376,7 @@ UINT_PTR CALLBACK FileDialog::OFNHookProc(HWND hWnd, UINT uMsg, WPARAM wParam, L
 
 		default :
 		{
-			FileDialog *pFileDialog = reinterpret_cast<FileDialog *>(::GetWindowLongPtr(hWnd, GWL_USERDATA));
+			FileDialog *pFileDialog = reinterpret_cast<FileDialog *>(::GetWindowLongPtr(hWnd, GWLP_USERDATA));
 			if (!pFileDialog)
 			{
 				return FALSE;

PowerEditor/src/WinControls/ProjectPanel/TreeView.h

@@ -115,7 +115,7 @@ protected:
 	LRESULT runProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam);
 
 	static LRESULT CALLBACK staticProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam) {
-		return (((TreeView *)(::GetWindowLongPtr(hwnd, GWL_USERDATA)))->runProc(hwnd, Message, wParam, lParam));
+		return (((TreeView *)(::GetWindowLongPtr(hwnd, GWLP_USERDATA)))->runProc(hwnd, Message, wParam, lParam));
 	};
 	void cleanSubEntries(HTREEITEM hTreeItem);
 	void dupTree(HTREEITEM hTree2Dup, HTREEITEM hParentItem);

PowerEditor/src/WinControls/SplitterContainer/Splitter.cpp

@@ -250,7 +250,7 @@ LRESULT CALLBACK Splitter::staticWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LP
 		}
 		default:
 		{
-			Splitter * pSplitter = (Splitter *)::GetWindowLongPtr(hWnd, GWL_USERDATA);
+			Splitter * pSplitter = (Splitter *)::GetWindowLongPtr(hWnd, GWLP_USERDATA);
 			if (!pSplitter)
 				return ::DefWindowProc(hWnd, uMsg, wParam, lParam);
 

PowerEditor/src/WinControls/SplitterContainer/SplitterContainer.cpp

@@ -126,7 +126,7 @@ LRESULT CALLBACK SplitterContainer::staticWinProc(HWND hwnd, UINT message, WPARA
 			return TRUE;
 
 		default :
-			pSplitterContainer = (SplitterContainer *)::GetWindowLongPtr(hwnd, GWL_USERDATA);
+			pSplitterContainer = (SplitterContainer *)::GetWindowLongPtr(hwnd, GWLP_USERDATA);
 			if (!pSplitterContainer)
 				return ::DefWindowProc(hwnd, message, wParam, lParam);
 			return pSplitterContainer->runProc(message, wParam, lParam);

PowerEditor/src/WinControls/StaticDialog/StaticDialog.cpp

@@ -138,7 +138,7 @@ BOOL CALLBACK StaticDialog::dlgProc(HWND hwnd, UINT message, WPARAM wParam, LPAR
 
 		default :
 		{
-			StaticDialog *pStaticDlg = reinterpret_cast<StaticDialog *>(::GetWindowLongPtr(hwnd, GWL_USERDATA));
+			StaticDialog *pStaticDlg = reinterpret_cast<StaticDialog *>(::GetWindowLongPtr(hwnd, GWLP_USERDATA));
 			if (!pStaticDlg)
 				return FALSE;
 			return pStaticDlg->run_dlgProc(message, wParam, lParam);

PowerEditor/src/WinControls/TabBar/TabBar.h

@@ -241,7 +241,7 @@ protected:
 	LRESULT runProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam);
 
 	static LRESULT CALLBACK TabBarPlus_Proc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam) {
-		return (((TabBarPlus *)(::GetWindowLongPtr(hwnd, GWL_USERDATA)))->runProc(hwnd, Message, wParam, lParam));
+		return (((TabBarPlus *)(::GetWindowLongPtr(hwnd, GWLP_USERDATA)))->runProc(hwnd, Message, wParam, lParam));
 	};
 	void exchangeItemData(POINT point);
 

PowerEditor/src/WinControls/TaskList/TaskList.h

@@ -63,7 +63,7 @@ protected:
 	LRESULT runProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam);
 
 	static LRESULT CALLBACK staticProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam) {
-		return (((TaskList *)(::GetWindowLongPtr(hwnd, GWL_USERDATA)))->runProc(hwnd, Message, wParam, lParam));
+		return (((TaskList *)(::GetWindowLongPtr(hwnd, GWLP_USERDATA)))->runProc(hwnd, Message, wParam, lParam));
 	};
 
 	HFONT _hFont;

PowerEditor/src/WinControls/ToolTip/ToolTip.h

@@ -55,7 +55,7 @@ protected:
 	TOOLINFO	_ti;
 
     static LRESULT CALLBACK staticWinProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam) {
-        return (((ToolTip *)(::GetWindowLongPtr(hwnd, GWL_USERDATA)))->runProc(Message, wParam, lParam));
+        return (((ToolTip *)(::GetWindowLongPtr(hwnd, GWLP_USERDATA)))->runProc(Message, wParam, lParam));
     };
 	LRESULT runProc(UINT Message, WPARAM wParam, LPARAM lParam);
 	void SendHitMessage();

PowerEditor/src/WinControls/VerticalFileSwitcher/VerticalFileSwitcherListView.h

@@ -89,7 +89,7 @@ protected:
 	LRESULT runProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam);
 
 	static LRESULT CALLBACK staticProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam) {
-		return (((VerticalFileSwitcherListView *)(::GetWindowLongPtr(hwnd, GWL_USERDATA)))->runProc(hwnd, Message, wParam, lParam));
+		return (((VerticalFileSwitcherListView *)(::GetWindowLongPtr(hwnd, GWLP_USERDATA)))->runProc(hwnd, Message, wParam, lParam));
 	};
 
 	int find(int bufferID, int iView) const;