J, ]# l. X- u" Q6 K / S( l/ a' ^) S! I% P. j9 h2 O2.这是request的程序 + e& {+ a4 j0 f7 e- I# S- i// Request a value from Extend3 C1 M6 o# V9 s
// / T5 i1 x' O5 ^( @// Initialize the variant that will hold the BSTR. Set the variant's ' y/ y9 \' m' R" \% f" I// type flag to indicate the fact that this variant holds a BSTR. Place the! l7 V) t U$ {+ h; U+ z
// BSTR into the variant structure. - s- I; {9 N% v: {9 P9 r& K; E U 5 W8 a- r- W3 A( v, F9 z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 q. G& Q. x. J& v ( Z* ]3 A) Z' @# c8 l( w
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 K% s: n3 |$ I7 z |- _ VariantInit(&requestVariant[0]); & w9 c+ S9 v9 s9 n1 z requestVariant[0].vt = VT_BSTR;0 c. E8 P* h9 Y1 c
requestVariant[0].bstrVal = itemStr;- C: ?) r/ e" T' Y9 ~
B* D! o) x$ a8 m% b6 m topicStr = SysAllocString((WCHAR *) L"system");- S/ U' Q7 s9 A; y+ [. ^7 _. F _
VariantInit(&requestVariant[1]); ! {9 J7 C. u* H/ G9 d. D. i4 n
requestVariant[1].vt = VT_BSTR;5 t% J, w1 V9 X$ t" q' b
requestVariant[1].bstrVal = topicStr; - S. y! ~1 d( Z% s/ p }1 i% H + P2 m3 Y6 ^0 }4 b4 p9 U// Set the DISPPARAMS structure that holds the variant. 9 g, N; e' J' ?* f" _2 G0 T3 e l + [8 v: p+ `$ P4 M* K$ Q9 r dp2.rgvarg = requestVariant;" ~0 `9 J9 l% q; F
dp2.cArgs = 2;2 q& ]8 O. ]6 e
dp2.rgdispidNamedArgs = NULL; 0 S( d! m8 ?3 ^$ I, @ dp2.cNamedArgs = 0; 5 E8 I7 G. C! x1 { " P+ s$ Z; R8 Q var.vt = VT_EMPTY;7 h4 } K5 i* U' I
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// Call IDispatch::Invoke()1 v# u2 ]& e6 P2 T: T
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hr = m_pDisp->Invoke( / s z+ W% ^! ? s( n3 { requestID, 2 Q: r' P5 U- ~1 k+ d IID_NULL, ( I" N# B. E7 m# e. p LOCALE_SYSTEM_DEFAULT,0 M2 s) h+ N$ Q1 v6 ~/ k# `5 N% o
DISPATCH_METHOD, : |/ f( u" a$ b' ~ &dp2, + A6 I3 X0 x7 O5 w4 \. x &var, : f7 \) E( h/ U, j9 @ &ei, ; t7 o8 }* p' Z& s9 o5 d0 l! O& S &uiErr);+ \8 O0 [) c. q; F4 K6 i
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SysFreeString(topicStr); 2 H; s4 _" o( d) c" c SysFreeString(itemStr); x5 D9 ]$ V, r& G: b3 L( L r0 L请问该程序是获得extend里面的哪个值?: H, Z" d/ P9 w
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????