fixed os/2 mouse relative motion not working (thanks Andrey Vasilkin,) for issue reported at https://github.com/bitwiseworks/SDL2-os2/issues/5
diff --git a/src/video/os2/SDL_os2mouse.c b/src/video/os2/SDL_os2mouse.c
index 869420c..bcbb4b4 100644
--- a/src/video/os2/SDL_os2mouse.c
+++ b/src/video/os2/SDL_os2mouse.c
@@ -126,6 +126,8 @@ static void OS2_WarpMouse(SDL_Window * window, int x, int y)
WinMapWindowPoints(pWinData->hwnd, HWND_DESKTOP, &pointl, 1);
/* pWinData->lSkipWMMouseMove++; ???*/
WinSetPointerPos(HWND_DESKTOP, pointl.x, pointl.y);
+
+ SDL_SendMouseMotion(window, SDL_GetMouse()->mouseID, 0, x, y);
}
static int OS2_WarpMouseGlobal(int x, int y)