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2.这是request的程序 $ p2 w9 F6 ~) r3 b// Request a value from Extend7 E2 y e% y2 X- P" K" _
//* d B+ L7 L+ `- P# |) s( e% Q/ l# I
// Initialize the variant that will hold the BSTR. Set the variant's 7 n; ?! n2 y" U3 _0 Y2 a// type flag to indicate the fact that this variant holds a BSTR. Place the % n& l7 X" H8 e# d" }% ?// BSTR into the variant structure.* A; {% [5 j, O* [& e% u# q
, g( I6 v3 w: A requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % {2 S0 ^8 z) A1 x G) \5 | ~* V6 V itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 g* S2 I* H; j/ Z- [1 \ VariantInit(&requestVariant[0]); F w$ g7 m i! Y- \, {! ]% R2 x
requestVariant[0].vt = VT_BSTR;- ^; O* L% M( {4 Y) r
requestVariant[0].bstrVal = itemStr;2 f8 z/ L$ w/ m- l
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topicStr = SysAllocString((WCHAR *) L"system"); W. p* U0 l, {7 T3 ?
VariantInit(&requestVariant[1]); / {% t7 q# e" c, l' _+ ]
requestVariant[1].vt = VT_BSTR; 8 @) \3 n$ a- o: s! ~ requestVariant[1].bstrVal = topicStr; 8 \+ X @+ P5 x$ R4 n& {) R( m( ]6 S; B6 k2 J
// Set the DISPPARAMS structure that holds the variant.- I* c y, {/ t7 M2 Z' k6 J
. b" Z3 |2 G# K( Q dp2.rgvarg = requestVariant;/ q) x* a2 o; X
dp2.cArgs = 2;! x; u. r0 ]* c5 o, D g& a- W4 k
dp2.rgdispidNamedArgs = NULL; 0 u. W3 x, V0 ?7 ?( S dp2.cNamedArgs = 0; ( O' J- j6 h1 M; a6 U! X1 J" I' N9 z; ?: x3 ?7 S `
var.vt = VT_EMPTY;! {( K$ ?7 t; Y! t. \
- f' V- w7 d! s. V$ N$ d5 S// Call IDispatch::Invoke() 0 R7 w* C9 w0 T* K" ~" \; _6 m! S) e; C( A2 l
hr = m_pDisp->Invoke( + Q' D( S! m; {5 f+ d requestID, 1 [6 T* U$ v0 Y, w: N IID_NULL, # \& U1 ]6 k3 s LOCALE_SYSTEM_DEFAULT,6 W- M3 }: x W. b
DISPATCH_METHOD, ( w$ s! i+ ?1 c% J. N &dp2,& ~ D' e: j- P
&var, * _1 h1 g" X% ]2 R9 {1 q* n* Y &ei, c1 S( {/ W) ]) d6 }
&uiErr);! \+ s7 \* o% w8 l8 p. K3 ^% L