" v$ W. `2 M, t6 C$ ]1 Z4 |' v2.这是request的程序/ s3 G9 r1 c1 f- W- T1 f5 L( J
// Request a value from Extend : W: U0 y4 ~( @& H6 r// 9 |) b) U5 m2 b* O' }; F// Initialize the variant that will hold the BSTR. Set the variant's/ G; ?/ w2 G% |5 a
// type flag to indicate the fact that this variant holds a BSTR. Place the+ j1 ]- ^5 n) K/ f' w( c- T2 p: z
// BSTR into the variant structure. . [, g* |- v% c2 Z2 w# ^1 z% {) J/ C- I" v
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ! _" G4 v2 H7 k0 e3 \8 K: `) g/ L; D: k ' [3 V& P Y& F
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & ^" x2 N6 k1 s$ }* H( ~- ^ VariantInit(&requestVariant[0]); ) ~) U2 x6 \) l8 v% P requestVariant[0].vt = VT_BSTR;# j0 O& ?; i. W+ X S s. b, F% u
requestVariant[0].bstrVal = itemStr;$ y' g+ _2 L$ [* b
& p+ ]) N4 P/ G+ A$ F topicStr = SysAllocString((WCHAR *) L"system"); D5 a5 ?& M' b+ ]* b8 d; f VariantInit(&requestVariant[1]); ' \- ]$ k. N. j
requestVariant[1].vt = VT_BSTR;8 v0 Z* b2 @& X9 [4 F! G
requestVariant[1].bstrVal = topicStr;6 t+ t6 L; ^, j8 o2 w3 z2 P
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// Set the DISPPARAMS structure that holds the variant. ( F& l# J- i0 K1 O4 m( `% `3 O4 D _. r8 z1 ]
dp2.rgvarg = requestVariant; + G' U) B' O) [8 r$ v. `# ^) N5 \ dp2.cArgs = 2; & F# [ i, m, C% |4 G9 u V dp2.rgdispidNamedArgs = NULL;: e( F5 n5 l% u, ?
dp2.cNamedArgs = 0;2 D( F" }6 _+ u; M& l; `
" b0 j# V9 F( o7 `# u var.vt = VT_EMPTY;* B9 d1 {. D( J o
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// Call IDispatch::Invoke() 0 o; n2 Z: u3 e7 q1 r5 [% y. C- |) m
hr = m_pDisp->Invoke( . M. f5 o: t2 y/ C) r; a3 Y7 ` requestID,) z! E* F8 v9 t8 D2 d# A
IID_NULL,, C3 T' Z# o0 v6 N! k3 \
LOCALE_SYSTEM_DEFAULT,* _9 q- p1 t, i& `; k4 v: u
DISPATCH_METHOD, d) x* s& i% j+ @) D: \ &dp2, ( g- `" c u# x; M! d, |8 n# w& F &var, ' T6 a$ T; z! i &ei, 5 o, D% k: [+ Y7 d; u &uiErr);. U% z( ~' t+ o: G) k o+ Y
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SysFreeString(topicStr); 5 p! n v+ Z4 z0 i" r SysFreeString(itemStr);# U0 N" z% V4 v* G
请问该程序是获得extend里面的哪个值?% t- q7 r, |; a) [) `( ~
如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????