! a+ \2 d9 o4 M8 Z) ~2.这是request的程序5 ]* H) u! C% T- o H" x- o# q% y
// Request a value from Extend & y. Z4 I/ f3 x; c K" O// 7 l9 T2 ~& f& O// Initialize the variant that will hold the BSTR. Set the variant's 7 ^) J2 L9 s2 m) l' ^9 B$ Y* b// type flag to indicate the fact that this variant holds a BSTR. Place the % E3 t( w( g1 @8 s. S) M) [// BSTR into the variant structure.6 k0 {1 }: i6 ^, }7 O( p
" G5 w# b3 ^% \9 d requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); T ^( _+ i9 k4 g* T5 w
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . U3 c7 x! v M; Q+ M' f$ s VariantInit(&requestVariant[0]); + l) ]; }6 }3 k( W& }1 t r5 {
requestVariant[0].vt = VT_BSTR;# |( e7 H4 i' K5 v! `
requestVariant[0].bstrVal = itemStr; # ^3 r# l0 ^0 \0 {. w, E& b8 n8 b. a" t4 I" R
topicStr = SysAllocString((WCHAR *) L"system");1 V& L4 ` o/ c; T c, I0 i9 [- U
VariantInit(&requestVariant[1]); 5 B; k1 [' @3 p1 ~
requestVariant[1].vt = VT_BSTR; & v: s+ `. ~% d8 t requestVariant[1].bstrVal = topicStr;& e! V5 ~5 i( H+ X) \% j7 b+ ` R
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// Set the DISPPARAMS structure that holds the variant.0 y# H8 v, `- L2 I; y' U3 o; T& U# b
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dp2.rgvarg = requestVariant; ]* Q& y" t" T1 q: m+ Z* i dp2.cArgs = 2;3 ^% j/ }/ F" H% s1 `
dp2.rgdispidNamedArgs = NULL; " K8 M! T+ T% d+ Q3 F( D1 A dp2.cNamedArgs = 0; - g* }4 J" i3 B- E( C1 G5 m% w 3 V- Y% V4 e* ~4 @8 y var.vt = VT_EMPTY;/ U" f7 R" E4 j! ^
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// Call IDispatch::Invoke() 7 |4 W! ]3 O) G$ o4 M* P/ H8 B1 P6 y7 j/ ~3 _
hr = m_pDisp->Invoke(# ]( S: F, O8 g
requestID,/ ]# p, U! D* h8 z7 T( u: d: O' p
IID_NULL, K) S+ [1 c' U3 i LOCALE_SYSTEM_DEFAULT,4 ?% j: ^; [& \, E6 X, t# p
DISPATCH_METHOD, 5 x0 K4 b: I; X Z; ]( U4 Q* P &dp2,) o+ ^" [' x, u" \4 ?* y% X0 D
&var, g: N# F( H# E
&ei, ( Z' P3 Y/ m3 i8 W; q &uiErr); 0 t# t: y3 Q6 T. w1 F. V: O- E$ l- _! U
SysFreeString(topicStr); % u5 I) ?& m1 [2 A3 {! S SysFreeString(itemStr);$ d; V2 C6 ~$ _, I: m i' j) s C0 w
请问该程序是获得extend里面的哪个值? 9 t7 `, e2 L Y) ^% l W; G% f# R; h _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????