X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Fmswin%2Ffg_main_mswin.c;h=d3041696015bcc06eabc32b0ab63076c5f2e9bf3;hb=065ac95b77b53e025a219da8c7ac31ee2b32dbc5;hp=19daf5aee783156cdd40748ccb99315182d4f089;hpb=577b5282d04d034afc34c7240491d8f94848e46a;p=freeglut

diff --git a/src/mswin/fg_main_mswin.c b/src/mswin/fg_main_mswin.c
index 19daf5a..d304169 100644
--- a/src/mswin/fg_main_mswin.c
+++ b/src/mswin/fg_main_mswin.c
@@ -518,18 +518,14 @@ LRESULT CALLBACK fgPlatformWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPAR
         lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
 
         SetActiveWindow( window->Window.Handle );
-        INVOKE_WCB( *window, Entry, ( GLUT_ENTERED ) );
         UpdateWindow ( hWnd );
 
         break;
 
     case WM_KILLFOCUS:
         {
-            SFG_Window* saved_window = fgStructure.CurrentWindow;
 /*            printf("WM_KILLFOCUS: %p\n", window ); */
             lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
-            INVOKE_WCB( *window, Entry, ( GLUT_LEFT ) );
-            fgSetWindow(saved_window);
 
             /* Check if there are any open menus that need to be closed */
             fgPlatformCheckMenuDeactivate();
@@ -553,11 +549,51 @@ LRESULT CALLBACK fgPlatformWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPAR
     case WM_SETCURSOR:
 /*      printf ( "Cursor event %x %x %x %x\n", window, window->State.Cursor, lParam, wParam ) ; */
         if( LOWORD( lParam ) == HTCLIENT )
-            fgSetCursor ( window, window->State.Cursor ) ;
+        {
+            if (!window->State.pWState.MouseTracking)
+            {
+                TRACKMOUSEEVENT tme;
+
+                /* Cursor just entered window, set cursor look */ 
+                fgSetCursor ( window, window->State.Cursor ) ;
+
+                /* If an EntryFunc callback is specified by the user, also
+                 * invoke that callback and start mouse tracking so that
+                 * we get a WM_MOUSELEAVE message
+                 */
+                if (FETCH_WCB( *window, Entry ))
+                {
+                    INVOKE_WCB( *window, Entry, ( GLUT_ENTERED ) );
+
+                    tme.cbSize = sizeof(TRACKMOUSEEVENT);
+                    tme.dwFlags = TME_LEAVE;
+                    tme.hwndTrack = window->Window.Handle;
+                    TrackMouseEvent(&tme);
+
+                    window->State.pWState.MouseTracking = GL_TRUE;
+                }
+            }
+        }
         else
+            /* Only pass non-client WM_SETCURSOR to DefWindowProc, or we get WM_SETCURSOR on parents of children as well */
             lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
         break;
 
+    case WM_MOUSELEAVE:
+        {
+            /* NB: This message is only received when a EntryFunc callback
+             * is specified by the user, as that is the only condition under
+             * which mouse tracking is setup in WM_SETCURSOR handler above
+             */
+            SFG_Window* saved_window = fgStructure.CurrentWindow;
+            INVOKE_WCB( *window, Entry, ( GLUT_LEFT ) );
+            fgSetWindow(saved_window);
+
+            window->State.pWState.MouseTracking = GL_FALSE;
+            lRet = 0;   /* As per docs, must return zero */
+        }
+        break;
+
     case WM_SHOWWINDOW:
         window->State.Visible = GL_TRUE;
         window->State.Redisplay = GL_TRUE;
@@ -828,8 +864,7 @@ LRESULT CALLBACK fgPlatformWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPAR
     case WM_CAPTURECHANGED:
         /* User has finished resizing the window, force a redraw */
         INVOKE_WCB( *window, Display, ( ) );
-
-        /*lRet = DefWindowProc( hWnd, uMsg, wParam, lParam ); */
+        lRet = 0;   /* Per docs, should return zero */
         break;
 
         /* Other messages that I have seen and which are not handled already */