{5 T" ]" {6 Z$ R : b1 z- t7 ~: B+ p! K2.这是request的程序: v* w" ?4 w9 }; V
// Request a value from Extend- {6 F# L o& q- B2 w1 J9 E
//6 H* S' k8 L# s! q' A
// Initialize the variant that will hold the BSTR. Set the variant's0 m, j, t) m4 y' O# U7 N
// type flag to indicate the fact that this variant holds a BSTR. Place the t. h. O6 A: w7 h0 L, l7 N+ G9 R ^
// BSTR into the variant structure. % k" n9 C! m% R! w0 M W* Z8 Z- S5 l; Y2 m5 f Y4 B, Z% _
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); - o. R; L( Z' a' m v) R( K" `0 n 1 f/ C! |2 x/ ~, T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; p7 i% y6 ]. ?
VariantInit(&requestVariant[0]); 2 | w" \- T* e- T# Y( \ requestVariant[0].vt = VT_BSTR;2 a9 U- `/ ~' C" n4 }
requestVariant[0].bstrVal = itemStr; 9 C' _# u1 S' X6 m* i8 v 1 w! G& Q$ B) U1 P5 K4 ] topicStr = SysAllocString((WCHAR *) L"system"); & l; M- L+ X% k- _& Q: m, ] VariantInit(&requestVariant[1]); 7 Y! d. u5 q# E% S8 m! P5 F
requestVariant[1].vt = VT_BSTR; i6 q& s% |1 {( X
requestVariant[1].bstrVal = topicStr;0 C2 }6 ~& `, E! i
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// Set the DISPPARAMS structure that holds the variant.; A' k$ C# F& _' H/ ]
, ~( O/ ]; u j dp2.rgvarg = requestVariant; $ Y8 v Z3 u& @+ }' t! J' v# h dp2.cArgs = 2;6 d* P& w: P1 o2 n3 d
dp2.rgdispidNamedArgs = NULL;$ o3 n* b2 L$ z& T
dp2.cNamedArgs = 0; ! e2 a2 V( Z5 x7 [ # k3 Y O1 x' h, ~ var.vt = VT_EMPTY;5 b( d# o, q6 f5 ?& |6 T
; s: z. K5 O: M; L8 \& M// Call IDispatch::Invoke() - [9 r! z% B6 n9 ~9 z& U7 ?$ a8 v ( H2 N- f, Q& N: q, @! F5 d hr = m_pDisp->Invoke(: z+ G( y( a9 I. y! [2 E
requestID, 9 A5 A" B( ]% s IID_NULL, - j3 J, {/ K$ V$ v; A7 _8 K o% w LOCALE_SYSTEM_DEFAULT, 6 x! ~0 L0 R M DISPATCH_METHOD,. z4 ?+ \+ _9 h6 f6 \ _
&dp2,! e: b, `* E( A. d: H' G# W/ p0 K
&var,0 k! V6 A" |0 O4 ~7 T5 f7 G! R3 l
&ei,1 d% h5 \& s% ^3 }
&uiErr); + O" h p6 m4 A, `1 U$ F8 u; c3 ?1 G+ `1 m- \6 O
SysFreeString(topicStr); * S5 ]' K; \5 C6 V9 s* ? SysFreeString(itemStr); ( o) p: K3 b1 P请问该程序是获得extend里面的哪个值? 4 h' G# U- L0 k: ]$ R6 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????