vbscript: Fail if we have no context in InvokeEx.

The current code can't cope with it, so do the same thing as in GetDispID, to prevent a possible crash. Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com> Signed-off-by: Jacek Caban <jacek@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

vbscript: Fail if we have no context in InvokeEx.
b6240570 · Gabriel Ivăncescu · Alexandre Julliard · f284d2a5 · b6240570
Commit b6240570 authored Feb 13, 2020 by Gabriel Ivăncescu Committed by Alexandre Julliard Feb 13, 2020
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vbdisp.c dlls/vbscript/vbdisp.c +3 -0

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--- a/dlls/vbscript/vbdisp.c
+++ b/dlls/vbscript/vbdisp.c
@@ -1388,6 +1388,9 @@ static HRESULT WINAPI ScriptDisp_InvokeEx(IDispatchEx *iface, DISPID id, LCID lc
    TRACE("(%p)->(%x %x %x %p %p %p %p)\n", This, id, lcid, wFlags, pdp, pvarRes, pei, pspCaller);
+    if (!This->ctx)
+        return E_UNEXPECTED;
    if (id & DISPID_FUNCTION_MASK)
    {
        id &= ~DISPID_FUNCTION_MASK;