Add dpi support for panel tab and caption

- use recommended subclassing for docking panel tab and caption
- remove unused function

ref #14959

Close #15394

PowerEditor/src/WinControls/DockingWnd/DockingCont.cpp

@@ -58,28 +58,19 @@ static LRESULT CALLBACK hookProcMouse(int nCode, WPARAM wParam, LPARAM lParam)
 
 DockingCont::DockingCont()
 {
-	_captionHeightDynamic = NppParameters::getInstance()._dpiManager.scaleY(_captionHeightDynamic);
+	setDpi();
-	_captionGapDynamic = NppParameters::getInstance()._dpiManager.scaleY(_captionGapDynamic);
+	_captionHeightDynamic = _dpiManager.scale(HIGH_CAPTION);
-	_closeButtonPosLeftDynamic = NppParameters::getInstance()._dpiManager.scaleX(_closeButtonPosLeftDynamic);
+	_captionGapDynamic = _dpiManager.scale(CAPTION_GAP);
-	_closeButtonPosTopDynamic = NppParameters::getInstance()._dpiManager.scaleY(_closeButtonPosTopDynamic);
+	_closeButtonPosLeftDynamic = _dpiManager.scale(CLOSEBTN_POS_LEFT);
+	_closeButtonPosTopDynamic = _dpiManager.scale(CLOSEBTN_POS_TOP);
 
-	_closeButtonWidth = NppParameters::getInstance()._dpiManager.scaleX(12); // bitmap image is 12x12
+	_closeButtonWidth = _dpiManager.scale(g_dockingContCloseBtnSize);
-	_closeButtonHeight = NppParameters::getInstance()._dpiManager.scaleY(12);
+	_closeButtonHeight = _dpiManager.scale(g_dockingContCloseBtnSize);
 }
 
 DockingCont::~DockingCont()
 {
-	if (_hFont != nullptr)
+	destroyFonts();
-	{
-		::DeleteObject(_hFont);
-		_hFont = nullptr;
-	}
-
-	if (_hFontCaption != nullptr)
-	{
-		::DeleteObject(_hFontCaption);
-		_hFontCaption = nullptr;
-	}
 }
 
 
@@ -267,12 +258,27 @@ bool DockingCont::isTbVis(tTbData* data)
 }
 
 
+void DockingCont::destroyFonts()
+{
+	if (_hFont != nullptr)
+	{
+		::DeleteObject(_hFont);
+		_hFont = nullptr;
+	}
+
+	if (_hFontCaption != nullptr)
+	{
+		::DeleteObject(_hFontCaption);
+		_hFontCaption = nullptr;
+	}
+}
+
 //
 //    Process function of caption bar
 //
 LRESULT DockingCont::runProcCaption(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
 {
-	static ToolTip	toolTip;
+	static ToolTip toolTip;
 
 	switch (Message)
 	{
@@ -314,7 +320,7 @@ LRESULT DockingCont::runProcCaption(HWND hwnd, UINT Message, WPARAM wParam, LPAR
 			}
 
 			focusClient();
-			return TRUE;
+			return 0;
 		}
 		case WM_LBUTTONUP:
 		{
@@ -333,7 +339,7 @@ LRESULT DockingCont::runProcCaption(HWND hwnd, UINT Message, WPARAM wParam, LPAR
 			}
 			
 			focusClient();
-			return TRUE;
+			return 0;
 		}
 		case WM_LBUTTONDBLCLK:
 		{
@@ -341,7 +347,7 @@ LRESULT DockingCont::runProcCaption(HWND hwnd, UINT Message, WPARAM wParam, LPAR
 				::SendMessage(_hParent, DMM_FLOATALL, 0, reinterpret_cast<LPARAM>(this));
 
 			focusClient();
-			return TRUE;
+			return 0;
 		}
 		case WM_MOUSEMOVE:
 		{
@@ -400,7 +406,7 @@ LRESULT DockingCont::runProcCaption(HWND hwnd, UINT Message, WPARAM wParam, LPAR
 				toolTip.destroy();
 				_bCapTTHover = FALSE;
 			}
-			return TRUE;
+			return 0;
 		}
 		case WM_MOUSEHOVER:
 		{
@@ -422,13 +428,13 @@ LRESULT DockingCont::runProcCaption(HWND hwnd, UINT Message, WPARAM wParam, LPAR
 				generic_string tip = pNativeSpeaker->getLocalizedStrFromID("close-panel-tip", TEXT("Close"));
 				toolTip.Show(rc, tip.c_str(), pt.x, pt.y + 20);
 			}
-			return TRUE;
+			return 0;
 		}
 		case WM_MOUSELEAVE:
 		{
 			toolTip.destroy();
 			_bCapTTHover = FALSE;
-			return TRUE;
+			return 0;
 		}
 		case WM_SIZE:
 		{
@@ -445,7 +451,23 @@ LRESULT DockingCont::runProcCaption(HWND hwnd, UINT Message, WPARAM wParam, LPAR
 			break;
 	}
 
-	return ::CallWindowProc(_hDefaultCaptionProc, hwnd, Message, wParam, lParam);
+	return ::DefSubclassProc(hwnd, Message, wParam, lParam);
+}
+
+LRESULT DockingCont::DockingCaptionSubclass(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData)
+{
+	switch (uMsg)
+	{
+		case WM_NCDESTROY:
+		{
+			::RemoveWindowSubclass(hWnd, DockingCaptionSubclass, uIdSubclass);
+			break;
+		}
+
+		default:
+			break;
+	}
+	return reinterpret_cast<DockingCont*>(dwRefData)->runProcCaption(hWnd, uMsg, wParam, lParam);
 }
 
 void DockingCont::drawCaptionItem(DRAWITEMSTRUCT *pDrawItemStruct)
@@ -815,7 +837,7 @@ LRESULT DockingCont::runProcTab(HWND hwnd, UINT Message, WPARAM wParam, LPARAM l
 		case WM_LBUTTONDOWN:
 		{
 			_beginDrag	= TRUE;
-			return TRUE;
+			return 0;
 		}
 		case WM_LBUTTONUP:
 		{
@@ -829,12 +851,12 @@ LRESULT DockingCont::runProcTab(HWND hwnd, UINT Message, WPARAM wParam, LPARAM l
 
 			selectTab(iItem);
 			_beginDrag = FALSE;
-			return TRUE;
+			return 0;
 		}
 		case WM_LBUTTONDBLCLK:
 		{
 			NotifyParent((_isFloating == true)?DMM_DOCK:DMM_FLOAT);
-			return TRUE;
+			return 0;
 		}
 		case WM_MBUTTONUP:
 		{
@@ -861,7 +883,7 @@ LRESULT DockingCont::runProcTab(HWND hwnd, UINT Message, WPARAM wParam, LPARAM l
 			{
 				hideToolbar((tTbData*)tcItem.lParam);
 			}
-			return TRUE;
+			return 0;
 		}
 
 		case WM_MOUSEMOVE:
@@ -908,9 +930,6 @@ LRESULT DockingCont::runProcTab(HWND hwnd, UINT Message, WPARAM wParam, LPARAM l
 						TCITEM tcItem {};
 						RECT rc {};
 
-						// destroy old tooltip
-						toolTip.destroy();
-
 						// recalc mouse position
 						::ClientToScreen(hwnd, &info.pt);
 
@@ -918,7 +937,10 @@ LRESULT DockingCont::runProcTab(HWND hwnd, UINT Message, WPARAM wParam, LPARAM l
 						tcItem.mask		= TCIF_PARAM;
 						::SendMessage(hwnd, TCM_GETITEM, iItem, reinterpret_cast<LPARAM>(&tcItem));
 						if (!tcItem.lParam)
-							return FALSE;
+							break;
+
+						// destroy old tooltip
+						toolTip.destroy();
 
 						toolTip.init(_hInst, hwnd);
 						toolTip.Show(rc, (reinterpret_cast<tTbData*>(tcItem.lParam))->pszName, info.pt.x, info.pt.y + 20);
@@ -930,7 +952,7 @@ LRESULT DockingCont::runProcTab(HWND hwnd, UINT Message, WPARAM wParam, LPARAM l
 
 				_beginDrag = FALSE;
 			}
-			return TRUE;
+			return 0;
 		}
 
 		case WM_MOUSEHOVER:
@@ -952,23 +974,23 @@ LRESULT DockingCont::runProcTab(HWND hwnd, UINT Message, WPARAM wParam, LPARAM l
 			tcItem.mask		= TCIF_PARAM;
 			::SendMessage(hwnd, TCM_GETITEM, iItem, reinterpret_cast<LPARAM>(&tcItem));
 			if (!tcItem.lParam)
-				return FALSE;
+				break;
 
 			toolTip.init(_hInst, hwnd);
-			toolTip.Show(rc, ((tTbData*)tcItem.lParam)->pszName, info.pt.x, info.pt.y + 20);
+			toolTip.Show(rc, reinterpret_cast<tTbData*>(tcItem.lParam)->pszName, info.pt.x, info.pt.y + 20);
-			return TRUE;
+			return 0;
 		}
 
 		case WM_MOUSELEAVE:
 		{
 			toolTip.destroy();
 			_bTabTTHover = FALSE;
-			return TRUE;
+			return 0;
 		}
 
 		case WM_NOTIFY:
 		{
-			LPNMHDR	lpnmhdr = (LPNMHDR)lParam;
+			LPNMHDR	lpnmhdr = reinterpret_cast<LPNMHDR>(lParam);
 
 			if ((lpnmhdr->hwndFrom == _hContTab) && (lpnmhdr->code == TCN_GETOBJECT))
 			{
@@ -981,6 +1003,7 @@ LRESULT DockingCont::runProcTab(HWND hwnd, UINT Message, WPARAM wParam, LPARAM l
 				iItem = static_cast<int32_t>(::SendMessage(hwnd, TCM_HITTEST, 0, reinterpret_cast<LPARAM>(&info)));
 
 				selectTab(iItem);
+				return 0;
 			}
 			break;
 		}
@@ -1000,14 +1023,30 @@ LRESULT DockingCont::runProcTab(HWND hwnd, UINT Message, WPARAM wParam, LPARAM l
 					break;
 				}
 			}
-			return 0;
+			break;
 		}
 
 		default:
 			break;
 	}
 
-	return ::CallWindowProc(_hDefaultTabProc, hwnd, Message, wParam, lParam);
+	return ::DefSubclassProc(hwnd, Message, wParam, lParam);
+}
+
+LRESULT DockingCont::DockingTabSubclass(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData)
+{
+	switch (uMsg)
+	{
+		case WM_NCDESTROY:
+		{
+			::RemoveWindowSubclass(hWnd, DockingTabSubclass, uIdSubclass);
+			break;
+		}
+
+		default:
+			break;
+	}
+	return reinterpret_cast<DockingCont*>(dwRefData)->runProcTab(hWnd, uMsg, wParam, lParam);
 }
 
 void DockingCont::drawTabItem(DRAWITEMSTRUCT* pDrawItemStruct)
@@ -1062,7 +1101,7 @@ void DockingCont::drawTabItem(DRAWITEMSTRUCT* pDrawItemStruct)
 		const int iconDpiDynamicalX = rc.left + (isSelected ? wPadding : (rc.right - rc.left - iconSize + 1) / 2);
 		const int iconDpiDynamicalY = rc.top + (rc.bottom - rc.top - iconSize - onePadding) / 2;
 
-		::DrawIconEx(hDc, iconDpiDynamicalX, iconDpiDynamicalY, tbData->hIconTab, 0, 0, 0, nullptr, DI_NORMAL);
+		::DrawIconEx(hDc, iconDpiDynamicalX, iconDpiDynamicalY, tbData->hIconTab, iconSize, iconSize, 0, nullptr, DI_NORMAL);
 
 		if (isSelected)
 		{
@@ -1112,12 +1151,12 @@ intptr_t CALLBACK DockingCont::run_dlgProc(UINT Message, WPARAM wParam, LPARAM l
 			_hCaption = ::GetDlgItem(_hSelf, IDC_BTN_CAPTION);
 
 			// intial subclassing of caption
-			::SetWindowLongPtr(_hCaption, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(this));
+			constexpr UINT_PTR idSubclassCaption = 1;
-			_hDefaultCaptionProc = reinterpret_cast<WNDPROC>(::SetWindowLongPtr(_hCaption, GWLP_WNDPROC, reinterpret_cast<LONG_PTR>(wndCaptionProc)));
+			::SetWindowSubclass(_hCaption, DockingCaptionSubclass, idSubclassCaption, reinterpret_cast<DWORD_PTR>(this));
 
 			// intial subclassing of tab
-			::SetWindowLongPtr(_hContTab, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(this));
+			constexpr UINT_PTR idSubclassTab = 2;
-			_hDefaultTabProc = reinterpret_cast<WNDPROC>(::SetWindowLongPtr(_hContTab, GWLP_WNDPROC, reinterpret_cast<LONG_PTR>(wndTabProc)));
+			::SetWindowSubclass(_hContTab, DockingTabSubclass, idSubclassTab, reinterpret_cast<DWORD_PTR>(this));
 
 			// set min tab width
 			const int tabDpiPadding = _dpiManager.scale(g_dockingContTabIconSize + g_dockingContTabIconPadding * 2);
@@ -1227,7 +1266,52 @@ intptr_t CALLBACK DockingCont::run_dlgProc(UINT Message, WPARAM wParam, LPARAM l
 			}
 			return FALSE;
 		}
-		case WM_COMMAND : 
+
+		case WM_DPICHANGED:
+		{
+			_dpiManager.setDpiWP(wParam);
+			[[fallthrough]];
+		}
+		case WM_DPICHANGED_AFTERPARENT:
+		{
+			if (Message != WM_DPICHANGED)
+			{
+				_dpiManager.setDpi(_hParent);
+			}
+			_captionHeightDynamic = _dpiManager.scale(HIGH_CAPTION);
+			_captionGapDynamic = _dpiManager.scale(CAPTION_GAP);
+			_closeButtonPosLeftDynamic = _dpiManager.scale(CLOSEBTN_POS_LEFT);
+			_closeButtonPosTopDynamic = _dpiManager.scale(CLOSEBTN_POS_TOP);
+
+			_closeButtonWidth = _dpiManager.scale(g_dockingContCloseBtnSize);
+			_closeButtonHeight = _dpiManager.scale(g_dockingContCloseBtnSize);
+
+			const int tabDpiPadding = _dpiManager.scale(g_dockingContTabIconSize + g_dockingContTabIconPadding * 2);
+			::SendMessage(_hContTab, TCM_SETMINTABWIDTH, 0, tabDpiPadding);
+			TabCtrl_SetPadding(_hContTab, tabDpiPadding / 2, 0);
+			TabCtrl_SetItemSize(_hContTab, 2 * tabDpiPadding, tabDpiPadding);
+
+			destroyFonts();
+
+			LOGFONT lfTab{ _dpiManager.getDefaultGUIFontForDpi() };
+			_hFont = ::CreateFontIndirect(&lfTab);
+
+			LOGFONT lfCaption{ _dpiManager.getDefaultGUIFontForDpi(DPIManagerV2::FontType::smcaption) };
+			_hFontCaption = ::CreateFontIndirect(&lfCaption);
+
+			if (Message == WM_DPICHANGED)
+			{
+				_dpiManager.setPositionDpi(lParam, _hSelf);
+			}
+			else
+			{
+				onSize();
+			}
+
+			return TRUE;
+		}
+
+		case WM_COMMAND:
 		{
 			switch (LOWORD(wParam))
 			{   
@@ -1702,7 +1786,7 @@ bool DockingCont::updateCaption()
 void DockingCont::focusClient()
 {
 	TCITEM tcItem {};
-	int iItem = getActiveTb();	
+	int iItem = getActiveTb();
 
 	if (iItem != -1)
 	{

PowerEditor/src/WinControls/DockingWnd/DockingCont.h

@@ -42,6 +42,8 @@ enum eMousePos {
 #define CLOSEBTN_POS_LEFT	3
 #define CLOSEBTN_POS_TOP	3
 
+constexpr int g_dockingContCloseBtnSize = 12;
+
 constexpr int g_dockingContTabIconSize = 16;
 constexpr int g_dockingContTabIconPadding = 3;
 
@@ -132,19 +134,17 @@ public:
 		::DestroyWindow(_hSelf);
 	};
 
+	void destroyFonts();
+
 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) {
+	static LRESULT CALLBACK DockingCaptionSubclass(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData);
-		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) {
+	static LRESULT CALLBACK DockingTabSubclass(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData);
-		return (((DockingCont *)(::GetWindowLongPtr(hwnd, GWLP_USERDATA)))->runProcTab(hwnd, Message, wParam, lParam));
-	};
 
 	intptr_t CALLBACK run_dlgProc(UINT message, WPARAM wParam, LPARAM lParam) override;
 
@@ -196,12 +196,6 @@ private:
 	// Important value for DlgMoving class
 	BOOL _dragFromTab = FALSE;
 
-	// subclassing handle for caption
-	WNDPROC _hDefaultCaptionProc = nullptr;
-
-	// subclassing handle for tab
-	WNDPROC _hDefaultTabProc = nullptr;
-
 	// for moving and reordering
 	UINT _prevItem = 0;
 	BOOL _beginDrag = FALSE;
@@ -218,8 +212,8 @@ private:
 	int _captionGapDynamic = CAPTION_GAP;
 	int _closeButtonPosLeftDynamic = CLOSEBTN_POS_LEFT;
 	int _closeButtonPosTopDynamic = CLOSEBTN_POS_TOP;
-	int _closeButtonWidth = 12;
+	int _closeButtonWidth = g_dockingContCloseBtnSize;
-	int _closeButtonHeight = 12;
+	int _closeButtonHeight = g_dockingContCloseBtnSize;
 
 	// data of added windows
 	std::vector<tTbData *> _vTbData;

PowerEditor/src/WinControls/StaticDialog/StaticDialog.h

@@ -80,10 +80,6 @@ public :
 		DPIManagerV2::setPositionDpi(lParam, _hSelf, flags);
 	}
 
-	void sendDpiMsgToChildCtrls(WPARAM wParam = 0, LPARAM lParam = 0) {
-		DPIManagerV2::sendMessageToChildControls(_hSelf, WM_DPICHANGED, wParam, lParam);
-	}
-
 	void destroy() override;
 
 	DPIManagerV2& dpiManager() { return _dpiManager; }

PowerEditor/src/WinControls/ToolTip/ToolTip.h

@@ -26,12 +26,15 @@ class ToolTip : public Window
 public:
 	ToolTip() = default;
 
-	void destroy() {
+	void destroy() override {
-		::DestroyWindow(_hSelf);
+		if (_hSelf != nullptr)
-		_hSelf = NULL;
+		{
+			::DestroyWindow(_hSelf);
+			_hSelf = nullptr;
+		}
 	};
 
-	virtual void init(HINSTANCE hInst, HWND hParent);
+	void init(HINSTANCE hInst, HWND hParent) override;
 	void Show(RECT rectTitle, const TCHAR* pszTitleText, int iXOff = 0, int iWidthOff = 0);
 
 protected:

PowerEditor/src/dpiManagerV2.cpp

@@ -209,77 +209,6 @@ LOGFONT DPIManagerV2::getDefaultGUIFontForDpi(UINT dpi, FontType type)
 	return lf;
 }
 
-// currently send message only to selected buttons; listbox and edit controls with scrollbars
-void DPIManagerV2::sendMessageToChildControls(HWND hwndParent, UINT msg, WPARAM wParam, LPARAM lParam)
-{
-	struct WMessage
-	{
-		UINT _msg = 0;
-		WPARAM _wParam = 0;
-		LPARAM _lParam = 0;
-	};
-
-	struct WMessage p { msg, wParam, lParam };
-
-	::EnumChildWindows(hwndParent, [](HWND hwnd, LPARAM childLParam) WINAPI_LAMBDA_RETURN(BOOL) {
-		auto & p = *reinterpret_cast<WMessage*>(childLParam);
-		constexpr size_t classNameLen = 32;
-		TCHAR className[classNameLen]{};
-		::GetClassName(hwnd, className, classNameLen);
-		auto style = ::GetWindowLongPtr(hwnd, GWL_STYLE);
-
-		if (wcscmp(className, WC_BUTTON) == 0)
-		{
-			switch (style & BS_TYPEMASK)
-			{
-				case BS_CHECKBOX:
-				case BS_AUTOCHECKBOX:
-				case BS_3STATE:
-				case BS_AUTO3STATE:
-				case BS_RADIOBUTTON:
-				case BS_AUTORADIOBUTTON:
-				{
-					if ((style & BS_PUSHLIKE) != BS_PUSHLIKE)
-					{
-						::SendMessage(hwnd, p._msg, p._wParam, p._lParam);
-					}
-					break;
-				}
-
-				default:
-				{
-					break;
-				}
-			}
-			return TRUE;
-		}
-
-		if (wcscmp(className, WC_EDIT) == 0)
-		{
-			bool hasScrollBar = ((style & WS_HSCROLL) == WS_HSCROLL) || ((style & WS_VSCROLL) == WS_VSCROLL);
-			if (hasScrollBar)
-			{
-				::SendMessage(hwnd, p._msg, p._wParam, p._lParam);
-			}
-			return TRUE;
-		}
-
-		if (wcscmp(className, WC_LISTBOX) == 0)
-		{
-			if ((style & LBS_COMBOBOX) != LBS_COMBOBOX)
-			{
-				bool hasScrollBar = ((style & WS_HSCROLL) == WS_HSCROLL) || ((style & WS_VSCROLL) == WS_VSCROLL);
-				if (hasScrollBar)
-				{
-					::SendMessage(hwnd, p._msg, p._wParam, p._lParam);
-				}
-			}
-			return TRUE;
-		}
-		return TRUE;
-	}, reinterpret_cast<LPARAM>(&p));
-}
-
 void DPIManagerV2::loadIcon(HINSTANCE hinst, const wchar_t* pszName, int cx, int cy, HICON* phico, UINT fuLoad)
 {
 	if (::LoadIconWithScaleDown(hinst, pszName, cx, cy, phico) != S_OK)

PowerEditor/src/dpiManagerV2.h

@@ -47,7 +47,7 @@ public:
 	static void initDpiAPI();
 
 	static int getSystemMetricsForDpi(int nIndex, UINT dpi);
-	int getSystemMetricsForDpi(int nIndex) {
+	int getSystemMetricsForDpi(int nIndex) const {
 		return getSystemMetricsForDpi(nIndex, _dpi);
 	}
 	static DPI_AWARENESS_CONTEXT setThreadDpiAwarenessContext(DPI_AWARENESS_CONTEXT dpiContext);
@@ -107,11 +107,11 @@ public:
 		return scale(x, USER_DEFAULT_SCREEN_DPI, getDpiForWindow(hWnd));
 	}
 
-	int scale(int x) {
+	int scale(int x) const {
 		return scale(x, _dpi);
 	}
 
-	int unscale(int x) {
+	int unscale(int x) const {
 		return unscale(x, _dpi);
 	}
 
@@ -123,7 +123,7 @@ public:
 		return -(scale(pt, getDpiForWindow(hWnd), 72));
 	}
 
-	int scaleFont(int pt) {
+	int scaleFont(int pt) const {
 		return scaleFont(pt, _dpi);
 	}
 
@@ -131,11 +131,10 @@ public:
 	static LOGFONT getDefaultGUIFontForDpi(HWND hWnd, FontType type = FontType::message) {
 		return getDefaultGUIFontForDpi(getDpiForWindow(hWnd), type);
 	}
-	LOGFONT getDefaultGUIFontForDpi(FontType type = FontType::message) {
+	LOGFONT getDefaultGUIFontForDpi(FontType type = FontType::message) const {
 		return getDefaultGUIFontForDpi(_dpi, type);
 	}
 
-	static void sendMessageToChildControls(HWND hwndParent, UINT msg, WPARAM wParam, LPARAM lParam);
 	static void loadIcon(HINSTANCE hinst, const wchar_t* pszName, int cx, int cy, HICON* phico, UINT fuLoad = LR_DEFAULTCOLOR);
 
 private: