From e2758ec37688b00e55ba50ea3db0bba9abe66604 Mon Sep 17 00:00:00 2001
From: Anixx <neptunia@mail.ru>
Date: Sat, 24 Jan 2026 12:26:25 +0200
Subject: [PATCH] Support for unthemed taskbar (#2369)

* Support for unthemed taskbar

See this discussion:
https://github.com/Open-Shell/Open-Shell-Menu/discussions/2367

* Refactor color handling in StartMenuDLL
---
 Src/StartMenu/StartMenuDLL/StartMenuDLL.cpp | 23 +++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/Src/StartMenu/StartMenuDLL/StartMenuDLL.cpp b/Src/StartMenu/StartMenuDLL/StartMenuDLL.cpp
index 9f26f22..9111cb4 100644
--- a/Src/StartMenu/StartMenuDLL/StartMenuDLL.cpp
+++ b/Src/StartMenu/StartMenuDLL/StartMenuDLL.cpp
@@ -1624,7 +1624,7 @@ static void ComputeTaskbarColors( int *data )
 {
 	bool bDefLook;
 	int look=GetSettingInt(L"TaskbarLook",bDefLook);
-	if (GetWinVersion()<WIN_VER_WIN10 || look==TASKBAR_AEROGLASS || (look==TASKBAR_TRANSPARENT && g_TaskbarTexture))
+	if (GetWinVersion()<WIN_VER_WIN10 || !IsAppThemed() || look==TASKBAR_AEROGLASS || (look==TASKBAR_TRANSPARENT && g_TaskbarTexture))
 	{
 		memset(data,0,16);
 	}
@@ -1872,6 +1872,7 @@ static LRESULT CALLBACK SubclassTaskBarProc( HWND hWnd, UINT uMsg, WPARAM wParam
 		ComputeTaskbarColors(data);
 		WINCOMPATTRDATA attrData={0x13,&data,sizeof(data)};
 		SetWindowCompositionAttribute(hWnd,&attrData);
+		UpdateTaskBars(TASKBAR_UPDATE_TEXTURE);
 		return res;
 	}
 	if ((uMsg==WM_DWMCOLORIZATIONCOLORCHANGED || uMsg==WM_SETTINGCHANGE) && taskBar && taskBar->bCustomLook && SetWindowCompositionAttribute && GetWinVersion()<WIN_VER_WIN10)
@@ -1932,7 +1933,7 @@ static LRESULT CALLBACK SubclassTaskBarProc( HWND hWnd, UINT uMsg, WPARAM wParam
 				WINCOMPATTRDATA attrData={0x13,&data,sizeof(data)};
 				SetWindowCompositionAttribute(hWnd,&attrData);
 			}
-			if (g_TaskbarTexture && IsAppThemed())
+			if (g_TaskbarTexture)
 			{
 				// draw taskbar background (behind start button and separators)
 				PAINTSTRUCT ps;
@@ -2383,12 +2384,19 @@ void UpdateTaskBars( TUpdateTaskbar update )
 					}
 				}
 			}
-			else if (GetWinVersion()<WIN_VER_WIN10 && (!bDefColor || !bDefOpacity))
+			else if ((GetWinVersion()<WIN_VER_WIN10 && (!bDefColor || !bDefOpacity)) || !IsAppThemed())
 			{
 				if (bDefColor && GetWinVersion()>WIN_VER_WIN7)
 				{
-					color=GetSystemGlassColor8();
-					color=((color&0xFF)<<16)|(color&0xFF00)|((color>>16)&0xFF);
+					if (IsAppThemed()) 
+					{
+						color=GetSystemGlassColor8();
+						color=((color&0xFF)<<16)|(color&0xFF00)|((color>>16)&0xFF);
+					}
+					else
+					{
+						color=GetSysColor(COLOR_BTNFACE);
+					}
 				}
 				BITMAPINFO bi={0};
 				bi.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
@@ -3012,7 +3020,10 @@ static void InitStartMenuDLL( void )
 		if (GetWinVersion()<=WIN_VER_WIN81)
 			g_DrawThemeBackgroundHook=SetIatHook(module,"uxtheme.dll","DrawThemeBackground",DrawThemeBackground2);
 		g_DrawThemeTextHook=SetIatHook(module,"uxtheme.dll","DrawThemeText",DrawThemeText2);
-		g_DrawThemeTextExHook=SetIatHook(module,"uxtheme.dll","DrawThemeTextEx",DrawThemeTextEx2);
+		if (IsAppThemed())
+		{
+			g_DrawThemeTextExHook=SetIatHook(module,"uxtheme.dll","DrawThemeTextEx",DrawThemeTextEx2);
+		}
 		g_DrawThemeTextCtlHook=SetIatHook(GetModuleHandle(L"comctl32.dll"),"uxtheme.dll","DrawThemeText",DrawThemeText2);
 		if (GetWinVersion()>=WIN_VER_WIN10)
 			g_SetWindowCompositionAttributeHook=SetIatHook(module,"user32.dll","SetWindowCompositionAttribute",SetWindowCompositionAttribute2);