From a6a0484e013e3d2771a0689677911e1348c747c9 Mon Sep 17 00:00:00 2001
From: dreamsourcelabTAI <tzz@dreamsourcelab.com>
Date: Sun, 28 Apr 2024 15:14:49 +0800
Subject: [PATCH] fix: The mouse scroll wheel cannot be used in Windows 7

---
 DSView/pv/mainframe.cpp       | 10 ++++++-
 DSView/pv/winnativewidget.cpp | 51 ++++++++++++++++++++++++++++-------
 DSView/pv/winnativewidget.h   |  5 ++--
 3 files changed, 54 insertions(+), 12 deletions(-)

diff --git a/DSView/pv/mainframe.cpp b/DSView/pv/mainframe.cpp
index 9f702324..c972e7c6 100644
--- a/DSView/pv/mainframe.cpp
+++ b/DSView/pv/mainframe.cpp
@@ -759,8 +759,16 @@ void MainFrame::AttachNativeWindow()
     _titleBar->EnableAbleDrag(false);
   
     setWindowFlags(Qt::FramelessWindowHint);
+
+    if (nativeWindow->IsWin7()){
+        SetWindowLong((HWND)winId(), GWL_STYLE, WS_CLIPCHILDREN | WS_CLIPSIBLINGS);   
+    }
+    else{
+        SetWindowLong((HWND)winId(), GWL_STYLE, WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS);   
+    }    
+
+    SetWindowLong((HWND)winId(), GWL_STYLE, WS_CLIPCHILDREN | WS_CLIPSIBLINGS);   
     
-    SetWindowLong((HWND)winId(), GWL_STYLE, WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS);   
     SetParent((HWND)winId(), nativeWindow->Handle());
 
     setVisible(true);
diff --git a/DSView/pv/winnativewidget.cpp b/DSView/pv/winnativewidget.cpp
index b5fc4b9d..160bc597 100644
--- a/DSView/pv/winnativewidget.cpp
+++ b/DSView/pv/winnativewidget.cpp
@@ -726,9 +726,15 @@ void WinNativeWidget::hideBorder()
     }
 }
 
-bool WinNativeWidget::isWinXOrGreater(DWORD major_version, DWORD minor_version, DWORD build_number)
-{
-    bool is_win_x_or_greater = false;
+bool WinNativeWidget::getWinSysVersion(DWORD *major_version, DWORD *minor_version, DWORD *build_number)
+{  
+    assert(major_version);
+    assert(minor_version);
+    assert(build_number);
+
+    *major_version = 0;
+    *minor_version = 0;
+    *build_number = 0;
 
     typedef NTSTATUS(WINAPI *tRtlGetVersion)(LPOSVERSIONINFOEXW);
     tRtlGetVersion pRtlGetVersion = tRtlGetVersion(QLibrary::resolve("ntdll", "RtlGetVersion"));
@@ -739,20 +745,47 @@ bool WinNativeWidget::isWinXOrGreater(DWORD major_version, DWORD minor_version,
         memset(&os_info, 0, sizeof(OSVERSIONINFOEXW));
         os_info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
         NTSTATUS status = pRtlGetVersion(&os_info);
+
         if (status == 0)
-        {
-            is_win_x_or_greater = (os_info.dwMajorVersion >= major_version &&
-                                   os_info.dwMinorVersion >= minor_version &&
-                                   os_info.dwBuildNumber >= build_number);
+        {   
+            *major_version = os_info.dwMajorVersion;
+            *minor_version = os_info.dwMinorVersion;
+            *build_number = os_info.dwBuildNumber;
+            return true;            
         }
     }
 
-    return is_win_x_or_greater;
+    return false;
 }
 
 bool WinNativeWidget::IsWin11OrGreater()
 {
-    return isWinXOrGreater(10, 0, 22000);
+    DWORD major_version = 0;
+    DWORD minor_version = 0;
+    DWORD build_number = 0;
+
+    if (getWinSysVersion(&major_version, &minor_version, &build_number)){
+        if (major_version >= 10 && build_number >= 22000){
+            return true;
+        }
+    }
+
+    return false;
+}
+
+bool WinNativeWidget::IsWin7()
+{
+    DWORD major_version = 0;
+    DWORD minor_version = 0;
+    DWORD build_number = 0;
+
+    if (getWinSysVersion(&major_version, &minor_version, &build_number)){
+        if (major_version == 6 && minor_version == 1){
+            return true;
+        }
+    }
+
+    return false;
 }
 
 int WinNativeWidget::GetDevicePixelRatio()
diff --git a/DSView/pv/winnativewidget.h b/DSView/pv/winnativewidget.h
index df316f46..99e8d67a 100644
--- a/DSView/pv/winnativewidget.h
+++ b/DSView/pv/winnativewidget.h
@@ -86,6 +86,7 @@ public:
 
     void SetBorderColor(QColor color);
     bool IsWin11OrGreater();
+    bool IsWin7();
 
     inline void SetTitleBarWidget(QWidget *w){
         _titleBarWidget = w;
@@ -99,8 +100,8 @@ public:
     static void EnalbeNoClientArea(bool bEnabled);
 
 private:   
-    QScreen* screenFromCurrentMonitorHandle();
-    bool isWinXOrGreater(DWORD major_version, DWORD minor_version, DWORD build_number);
+    QScreen* screenFromCurrentMonitorHandle(); 
+    bool getWinSysVersion(DWORD *major_version, DWORD *minor_version, DWORD *build_number);
     void showBorder();
     void hideBorder();
     static RECT GetMonitorArea(HMONITOR hMonitor, bool isPhysics);