5 u+ S( x1 m5 h/ b) f " P) @. t" `( o2.这是request的程序" k3 p* i: c+ |# N
// Request a value from Extend ^/ ]! p. t7 d5 U5 p& r+ b//) u+ y8 T. h; M {8 w
// Initialize the variant that will hold the BSTR. Set the variant's! d+ T6 G" |% R0 ^
// type flag to indicate the fact that this variant holds a BSTR. Place the ( q; V7 v' x- w! C. Y// BSTR into the variant structure.3 A `' V1 d3 u' W6 B* |0 B' Q8 ~
$ w0 U0 s$ P. P" ^# ` requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 6 E J" y/ ~, i: z* }, G* K ( X+ D! e3 Y. Y% [1 \4 D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 X- T8 i5 c% y1 k/ C# f
VariantInit(&requestVariant[0]); 4 g9 d c' E7 q* r; ]: b/ l requestVariant[0].vt = VT_BSTR; , M, }' [ u8 ?) b requestVariant[0].bstrVal = itemStr;% k$ e' |7 [& [3 r% H
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topicStr = SysAllocString((WCHAR *) L"system"); ' R; ^* C* a6 c& B VariantInit(&requestVariant[1]); 1 {* U: c7 R; `4 b: k requestVariant[1].vt = VT_BSTR; f/ Q4 b/ \- Q" {- T! l7 U requestVariant[1].bstrVal = topicStr;- V0 ~1 e. W& @+ a. D1 j
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// Set the DISPPARAMS structure that holds the variant., m# `" i7 [4 q6 m9 }1 Z# ^( x
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dp2.rgvarg = requestVariant; " y; v6 M; N# b4 `% L dp2.cArgs = 2; * y8 O) D" ~" M4 F/ ^& \5 M" s; J, c dp2.rgdispidNamedArgs = NULL;% G e& B9 J8 x* F! {# S( [
dp2.cNamedArgs = 0; . y7 s) i8 [: }( b+ r, C, `: U * S1 J. x3 _* S* c0 P) c. u, c& ~ var.vt = VT_EMPTY;" ?6 k1 V* J& n: q
6 U7 [: c5 I9 ^// Call IDispatch::Invoke() u2 _# N: `5 B. J7 ^. A8 \& s- J6 T4 j0 b) c7 {3 O$ R' Q% f" ]; e
hr = m_pDisp->Invoke( ) U6 r. \8 @- d( b3 ] requestID, $ R0 V# D7 B3 Q5 `/ J9 P& _ IID_NULL,+ F- f, V' _8 r3 M5 _
LOCALE_SYSTEM_DEFAULT,/ D$ ?0 W0 q4 K- D7 P9 H
DISPATCH_METHOD, 1 s u& [8 b s& v' D &dp2,3 @) Q4 Q$ F2 z e, ^( ~8 R) e: c
&var, ' A( ^/ W6 l& i7 J, ` &ei, & s; P( p+ i: B( h$ u &uiErr);1 F, j0 K5 [( I1 e; H8 P, v b
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SysFreeString(topicStr);6 |- i+ Y( N- ~1 \) \( X ?$ `6 G
SysFreeString(itemStr); : b$ ?1 G9 g ?4 |9 S请问该程序是获得extend里面的哪个值? 7 O; `3 S6 U0 Z' H4 ?8 ~9 j' 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????