diff --git a/src/dd.c b/src/dd.c
index 0130cda..c4219ca 100644
--- a/src/dd.c
+++ b/src/dd.c
@@ -674,9 +674,9 @@ HRESULT dd_SetDisplayMode(DWORD width, DWORD height, DWORD bpp, BOOL set_by_game
 
     if (set_by_game)
     {
-        PostMessageA(g_ddraw->hwnd, WM_SIZE_DDRAW, 0, MAKELPARAM(g_ddraw->width, g_ddraw->height));
-        PostMessageA(g_ddraw->hwnd, WM_MOVE_DDRAW, 0, MAKELPARAM(0, 0));
-        PostMessageA(g_ddraw->hwnd, WM_DISPLAYCHANGE_DDRAW, g_ddraw->bpp, MAKELPARAM(g_ddraw->width, g_ddraw->height));
+        real_SendMessageA(g_ddraw->hwnd, WM_SIZE_DDRAW, 0, MAKELPARAM(g_ddraw->width, g_ddraw->height));
+        real_SendMessageA(g_ddraw->hwnd, WM_MOVE_DDRAW, 0, MAKELPARAM(0, 0));
+        real_SendMessageA(g_ddraw->hwnd, WM_DISPLAYCHANGE_DDRAW, g_ddraw->bpp, MAKELPARAM(g_ddraw->width, g_ddraw->height));
     }
 
     return DD_OK;