Handle WM_MOUSEHWHEEL

Handle WM_MOUSEHWHEEL tilt wheel messages, similarly to WM_MOUSEWHEEL scroll
wheel messages, to generate X button 6 and 7 presses and releases.

7 files changed, 48 insertions, 10 deletions

diff --git a/hw/xwin/win.h b/hw/xwin/win.h
index 11748cef2..5e0ca8901 100644
--- a/hw/xwin/win.h
+++ b/hw/xwin/win.h
@@ -42,6 +42,11 @@
 #define YES					1
 #endif
 
+/* We can handle WM_MOUSEHWHEEL even though _WIN32_WINNT < 0x0600 */
+#ifndef WM_MOUSEHWHEEL
+#define WM_MOUSEHWHEEL 0x020E
+#endif
+
 /* Turn debug messages on or off */
 #ifndef CYGDEBUG
 #define CYGDEBUG				NO
@@ -449,6 +454,7 @@ typedef struct _winPrivScreenRec {
     Bool fBadDepth;
 
     int iDeltaZ;
+    int iDeltaV;
 
     int iConnectedClients;
 
diff --git a/hw/xwin/winmessages.h b/hw/xwin/winmessages.h
index 3d3fab274..8282f8b06 100644
--- a/hw/xwin/winmessages.h
+++ b/hw/xwin/winmessages.h
@@ -529,7 +529,7 @@ static const char *MESSAGE_NAMES[1024] = {
     "WM_XBUTTONDOWN",
     "WM_XBUTTONUP",
     "WM_XBUTTONDBLCLK",
-    "526",
+    "WM_MOUSEHWHEEL",
     "527",
     "WM_PARENTNOTIFY",
     "WM_ENTERMENULOOP",
diff --git a/hw/xwin/winmultiwindowwndproc.c b/hw/xwin/winmultiwindowwndproc.c
index c5ff7a785..c1efeb73d 100644
--- a/hw/xwin/winmultiwindowwndproc.c
+++ b/hw/xwin/winmultiwindowwndproc.c
@@ -685,6 +685,18 @@ winTopLevelWindowProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
         else
             break;
 
+    case WM_MOUSEHWHEEL:
+        if (SendMessage
+            (hwnd, WM_NCHITTEST, 0,
+             MAKELONG(GET_X_LPARAM(lParam),
+                      GET_Y_LPARAM(lParam))) == HTCLIENT) {
+            /* Pass the message to the root window */
+            SendMessage(hwndScreen, message, wParam, lParam);
+            return 0;
+        }
+        else
+            break;
+
     case WM_SETFOCUS:
         if (s_pScreenPriv == NULL || s_pScreenInfo->fIgnoreInput)
             break;
diff --git a/hw/xwin/winwin32rootlesswndproc.c b/hw/xwin/winwin32rootlesswndproc.c
index 9c282ecb4..be2958338 100644
--- a/hw/xwin/winwin32rootlesswndproc.c
+++ b/hw/xwin/winwin32rootlesswndproc.c
@@ -667,6 +667,15 @@ winMWExtWMWindowProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
         SendMessage(hwndScreen, message, wParam, lParam);
         return 0;
 
+    case WM_MOUSEHWHEEL:
+#if CYGMULTIWINDOW_DEBUG
+        winDebug("winMWExtWMWindowProc - WM_MOUSEHWHEEL\n");
+#endif
+
+        /* Pass the message to the root window */
+        SendMessage(hwndScreen, message, wParam, lParam);
+        return 0;
+
     case WM_MOUSEACTIVATE:
 #if CYGMULTIWINDOW_DEBUG
         winDebug("winMWExtWMWindowProc - WM_MOUSEACTIVATE\n");
diff --git a/hw/xwin/winwndproc.c b/hw/xwin/winwndproc.c
index b4c847877..906055fd4 100644
--- a/hw/xwin/winwndproc.c
+++ b/hw/xwin/winwndproc.c
@@ -979,7 +979,20 @@ winWindowProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
 #if CYGDEBUG
         winDebug("winWindowProc - WM_MOUSEWHEEL\n");
 #endif
-        winMouseWheel(&(s_pScreenPriv->iDeltaZ), GET_WHEEL_DELTA_WPARAM(wParam));
+        /* Button4 = WheelUp */
+        /* Button5 = WheelDown */
+        winMouseWheel(&(s_pScreenPriv->iDeltaZ), GET_WHEEL_DELTA_WPARAM(wParam), Button4, Button5);
+        break;
+
+    case WM_MOUSEHWHEEL:
+        if (s_pScreenPriv == NULL || s_pScreenInfo->fIgnoreInput)
+            break;
+#if CYGDEBUG
+        winDebug("winWindowProc - WM_MOUSEHWHEEL\n");
+#endif
+        /* Button7 = TiltRight */
+        /* Button6 = TiltLeft */
+        winMouseWheel(&(s_pScreenPriv->iDeltaV), GET_WHEEL_DELTA_WPARAM(wParam), 7, 6);
         break;
 
     case WM_SETFOCUS:
@@ -1150,6 +1163,7 @@ winWindowProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
 
         /* Clear any lingering wheel delta */
         s_pScreenPriv->iDeltaZ = 0;
+        s_pScreenPriv->iDeltaV = 0;
 
         /* Reshow the Windows mouse cursor if we are being deactivated */
         if (g_fSoftwareCursor && LOWORD(wParam) == WA_INACTIVE && !g_fCursor) {
diff --git a/hw/xwin/wmutil/mouse.c b/hw/xwin/wmutil/mouse.c
index 4c96d9cdd..b17a89013 100644
--- a/hw/xwin/wmutil/mouse.c
+++ b/hw/xwin/wmutil/mouse.c
@@ -42,12 +42,9 @@
 
 /* Handle the mouse wheel */
 void
-winMouseWheel(int *iTotalDeltaZ, int iDeltaZ)
+winMouseWheel(int *iTotalDeltaZ, int iDeltaZ, int iButtonUp, int iButtonDown)
 {
-    int button;                 /* Button4 or Button5 */
-
-    /* Button4 = WheelUp */
-    /* Button5 = WheelDown */
+    int button;
 
     /* Do we have any previous delta stored? */
     if (((*iTotalDeltaZ) > 0 && iDeltaZ > 0)
@@ -88,10 +85,10 @@ winMouseWheel(int *iTotalDeltaZ, int iDeltaZ)
 
     /* Set the button to indicate up or down wheel delta */
     if (iDeltaZ > 0) {
-        button = Button4;
+        button = iButtonUp;
     }
     else {
-        button = Button5;
+        button = iButtonDown;
     }
 
     /*
diff --git a/hw/xwin/wmutil/mouse.h b/hw/xwin/wmutil/mouse.h
index ddde7be8b..8bd6fe9eb 100644
--- a/hw/xwin/wmutil/mouse.h
+++ b/hw/xwin/wmutil/mouse.h
@@ -28,7 +28,7 @@
 
 #include <stdbool.h>
 
-void winMouseWheel(int *iTotalDeltaz, int iDeltaZ);
+void winMouseWheel(int *iTotalDeltaz, int iDeltaZ, int iButtonUp, int iButtonDown);
 
 /* Callback for sending mouse button events */
 void winMouseButtonsSendEvent(bool bPress, int iButton);