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-rw-r--r--erts/emulator/drivers/win32/win_con.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/erts/emulator/drivers/win32/win_con.c b/erts/emulator/drivers/win32/win_con.c
index 2202ca655f..14f7941643 100644
--- a/erts/emulator/drivers/win32/win_con.c
+++ b/erts/emulator/drivers/win32/win_con.c
@@ -704,6 +704,18 @@ FrameWndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam)
}
write_inbuf(&c, 1);
return 0;
+ case WM_MOUSEWHEEL:
+ {
+ int delta = GET_WHEEL_DELTA_WPARAM(wParam);
+ if (delta < 0) {
+ PostMessage(hClientWnd, WM_VSCROLL, MAKELONG(SB_THUMBTRACK,
+ (iVscrollPos + 5)),0);
+ } else {
+ WORD pos = ((iVscrollPos - 5) < 0) ? 0 : (iVscrollPos - 5);
+ PostMessage(hClientWnd, WM_VSCROLL, MAKELONG(SB_THUMBTRACK,pos),0);
+ }
+ return 0;
+ }
case WM_CHAR:
c = (TCHAR)wParam;
write_inbuf(&c,1);