Code enhancement: Replace undocumented functions

Fix #12721, close #12722

PowerEditor/src/MISC/PluginsManager/Notepad_plus_msgs.h

@@ -167,8 +167,8 @@ enum Platform { PF_UNKNOWN, PF_X86, PF_X64, PF_IA64, PF_ARM64 };
 	#define NPPM_MAKECURRENTBUFFERDIRTY (NPPMSG + 44)
 	//BOOL NPPM_MAKECURRENTBUFFERDIRTY(0, 0)
 
-	#define NPPM_GETENABLETHEMETEXTUREFUNC (NPPMSG + 45)
-	//BOOL NPPM_GETENABLETHEMETEXTUREFUNC(0, 0)
+	#define NPPM_GETENABLETHEMETEXTUREFUNC_DEPRECATED (NPPMSG + 45)
+	//BOOL NPPM_GETENABLETHEMETEXTUREFUNC(0, 0) -- DEPRECATED : use EnableThemeDialogTexture from uxtheme.h instead
 
 	#define NPPM_GETPLUGINSCONFIGDIR (NPPMSG + 46)
 	//INT NPPM_GETPLUGINSCONFIGDIR(int strLen, TCHAR *str)

PowerEditor/src/NppBigSwitch.cpp

@@ -17,6 +17,7 @@
 
 #include <algorithm>
 #include <shlwapi.h>
+#include <uxtheme.h> // for EnableThemeDialogTexture
 #include "Notepad_plus_Window.h"
 #include "TaskListDlg.h"
 #include "ImageListSet.h"
@@ -2658,9 +2659,9 @@ LRESULT Notepad_plus::process(HWND hwnd, UINT message, WPARAM wParam, LPARAM lPa
 			return TRUE;
 		}
 
-		case NPPM_GETENABLETHEMETEXTUREFUNC:
+		case NPPM_GETENABLETHEMETEXTUREFUNC_DEPRECATED:
 		{
-			return (LRESULT)nppParam.getEnableThemeDlgTexture();
+			return reinterpret_cast<LRESULT>(&EnableThemeDialogTexture);
 		}
 
 		case NPPM_GETPLUGINSCONFIGDIR:

PowerEditor/src/Parameters.cpp

@@ -991,8 +991,6 @@ NppParameters::~NppParameters()
 		delete _LRFileList[i];
 	for (int i = 0 ; i < _nbUserLang ; ++i)
 		delete _userLangArray[i];
-	if (_hUXTheme)
-		FreeLibrary(_hUXTheme);
 
 	for (std::vector<TiXmlDocument *>::iterator it = _pXmlExternalLexerDoc.begin(), end = _pXmlExternalLexerDoc.end(); it != end; ++it )
 		delete (*it);
@@ -1221,20 +1219,6 @@ bool NppParameters::load()
 		}
 	}
 
-	//-------------------------------------//
-	// Transparent function for w2k and xp //
-	//-------------------------------------//
-	HMODULE hUser32 = ::GetModuleHandle(TEXT("User32"));
-	if (hUser32)
-		_transparentFuncAddr = (WNDPROC)::GetProcAddress(hUser32, "SetLayeredWindowAttributes");
-
-	//---------------------------------------------//
-	// Dlg theme texture function for xp and vista //
-	//---------------------------------------------//
-	_hUXTheme = ::LoadLibraryEx(TEXT("uxtheme.dll"), nullptr, LOAD_LIBRARY_SEARCH_SYSTEM32);
-	if (_hUXTheme)
-		_enableThemeDialogTextureFuncAddr = (WNDPROC)::GetProcAddress(_hUXTheme, "EnableThemeDialogTexture");
-
 	//--------------------------//
 	// langs.xml : for per user //
 	//--------------------------//
@@ -1619,7 +1603,7 @@ void NppParameters::destroyInstance()
 	delete _pXmlUserStylerDoc;
 	
 	//delete _pXmlUserLangDoc; will be deleted in the vector
-	for (auto l : _pXmlUserLangsDoc)
+	for (auto& l : _pXmlUserLangsDoc)
 	{
 		delete l._udlXmlDoc;
 	}
@@ -1651,22 +1635,19 @@ void NppParameters::setWorkSpaceFilePath(int i, const TCHAR* wsFile)
 
 void NppParameters::removeTransparent(HWND hwnd)
 {
-	if (hwnd != NULL)
-		::SetWindowLongPtr(hwnd, GWL_EXSTYLE,  ::GetWindowLongPtr(hwnd, GWL_EXSTYLE) & ~0x00080000);
+	if (hwnd != nullptr)
+		::SetWindowLongPtr(hwnd, GWL_EXSTYLE, ::GetWindowLongPtr(hwnd, GWL_EXSTYLE) & ~WS_EX_LAYERED);
 }
 
 
 void NppParameters::SetTransparent(HWND hwnd, int percent)
 {
-	if (nullptr != _transparentFuncAddr)
-	{
-		::SetWindowLongPtr(hwnd, GWL_EXSTYLE, ::GetWindowLongPtr(hwnd, GWL_EXSTYLE) | 0x00080000);
-		if (percent > 255)
-			percent = 255;
-		if (percent < 0)
-			percent = 0;
-		_transparentFuncAddr(hwnd, 0, percent, 0x00000002);
-	}
+	::SetWindowLongPtr(hwnd, GWL_EXSTYLE, ::GetWindowLongPtr(hwnd, GWL_EXSTYLE) | WS_EX_LAYERED);
+	if (percent > 255)
+		percent = 255;
+	else if (percent < 0)
+		percent = 0;
+	::SetLayeredWindowAttributes(hwnd, 0, static_cast<BYTE>(percent), LWA_ALPHA);
 }
 
 

PowerEditor/src/Parameters.h

@@ -1272,7 +1272,7 @@ public:
 	bool themeNameExists(const TCHAR *themeName) {
 		for (size_t i = 0; i < _themeList.size(); ++i )
 		{
-			auto themeNameOnList = getElementFromIndex(i).first;
+			auto& themeNameOnList = getElementFromIndex(i).first;
 			if (lstrcmp(themeName, themeNameOnList.c_str()) == 0)
 				return true;
 		}
@@ -1545,7 +1545,7 @@ public:
 	TiXmlDocument * getCustomizedToolIcons() const {return _pXmlToolIconsDoc;};
 
 	bool isTransparentAvailable() const {
-		return (_transparentFuncAddr != NULL);
+		return (_winVersion >= WV_VISTA);
 	}
 
 	// 0 <= percent < 256
@@ -1645,7 +1645,6 @@ public:
 	};
 
 	int langTypeToCommandID(LangType lt) const;
-	WNDPROC getEnableThemeDlgTexture() const {return _enableThemeDialogTextureFuncAddr;};
 
 	struct FindDlgTabTitiles final {
 		generic_string _find;
@@ -1829,10 +1828,6 @@ private:
 	std::vector<generic_string> _fontlist;
 	std::vector<generic_string> _blacklist;
 
-	HMODULE _hUXTheme = nullptr;
-
-	WNDPROC _transparentFuncAddr = nullptr;
-	WNDPROC _enableThemeDialogTextureFuncAddr = nullptr;
 	bool _isLocal = false;
 	bool _isx64 = false; // by default 32-bit
 	bool _isCloud = false;