X-Git-Url: http://winboard.nl/cgi-bin?a=blobdiff_plain;f=winboard%2Fwinboard.c;h=b5b0594f1e07055842d4c022c87d56ceb8c013c9;hb=08f180588d2bd10c715f1613ee788601b7c0b7ee;hp=0ac478c30473406b636a09dcbb68441936785eb1;hpb=1f7d5904dd33df6234de598651087809dc1cbd2f;p=xboard.git

diff --git a/winboard/winboard.c b/winboard/winboard.c
index 0ac478c..b5b0594 100644
--- a/winboard/winboard.c
+++ b/winboard/winboard.c
@@ -3866,12 +3866,12 @@ MouseEvent(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
        /* Mouse Wheel is being rolled forward
         * Play moves forward
         */
-       if((short)HIWORD(wParam) > 0 && currentMove < forwardMostMove) 
+       if((short)HIWORD(wParam) < 0 && currentMove < forwardMostMove) 
 		{ if(lastDir == 1) ForwardEvent(); else lastDir = 1; } // [HGM] suppress first event in direction
        /* Mouse Wheel is being rolled backward
         * Play moves backward
         */
-       if((short)HIWORD(wParam) < 0 && currentMove > backwardMostMove) 
+       if((short)HIWORD(wParam) > 0 && currentMove > backwardMostMove) 
 		{ if(lastDir == -1) BackwardEvent(); else lastDir = -1; }
     }
     break;