# B+ R$ d4 o" a7 F1 F, w2.这是request的程序: ` ]3 v* `$ Q% a/ }( A: v
// Request a value from Extend 0 w- z! e2 w2 I6 b* A" ?/ D//' n9 s1 O* D: }: d" h7 ?0 o
// Initialize the variant that will hold the BSTR. Set the variant's$ W. Z7 t3 L. _7 X
// type flag to indicate the fact that this variant holds a BSTR. Place the* y6 Y. t& \" t$ D
// BSTR into the variant structure.' z. _( v6 X. H3 G1 [ n" F
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); . a5 R% Q7 N( _% F C4 r ' M+ o! k- H- {% l& G- o; V
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) M6 Z- X, L) Q) L" _1 s7 H1 n
VariantInit(&requestVariant[0]); " w( d& D# [: Z6 M* h3 ?
requestVariant[0].vt = VT_BSTR; 3 R) f; U" z2 e y$ m& v; n requestVariant[0].bstrVal = itemStr; ) _( k) F7 Q% p; z5 _1 q% c' B9 p0 U! Z. R; \4 N$ K' _
topicStr = SysAllocString((WCHAR *) L"system"); 7 j& O+ T) y+ C- H2 R `/ L7 C: R: ]" d VariantInit(&requestVariant[1]); ; U: a. T1 r( I9 G: ^ requestVariant[1].vt = VT_BSTR; 6 f; {# j" t9 G requestVariant[1].bstrVal = topicStr;2 b) j" S5 O& X/ }2 \/ x
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// Set the DISPPARAMS structure that holds the variant.) _( U, _" ?/ p: z% G! j
( @- h4 L8 e& {( N$ r+ Y6 Z$ G, k4 ?" @ dp2.rgvarg = requestVariant; 0 I& j. s) S( Y8 s' V1 V/ U) N, W: x dp2.cArgs = 2;7 H% U$ B; w9 K9 p/ \, Z0 P
dp2.rgdispidNamedArgs = NULL;) p6 R0 x, J% b( ~1 x
dp2.cNamedArgs = 0;& h& C5 j# l! ~7 ?; z, }/ q6 x
$ u2 ^; h% x; q, f var.vt = VT_EMPTY; / ]; R% ] q/ F8 ], A) m& A , ~, s2 P, c3 ?+ Z4 a// Call IDispatch::Invoke()6 F4 v" ^5 b: W; @* h5 t
5 a) R9 R b* y, @3 j hr = m_pDisp->Invoke( . `; Y) `! C' X3 u requestID,. c. ~; A- v2 \( V) Z1 }0 [
IID_NULL,! z( P' t$ L! z; Y) A1 K( \0 l
LOCALE_SYSTEM_DEFAULT, ! S9 l- s- v- l6 w5 {1 |) B5 e DISPATCH_METHOD, : n4 m- K) z# p. Z &dp2,0 r) @/ d; }7 H+ l( B. V
&var,1 T; f% n) x" ]1 i- V( @! w' O
&ei, 5 b' A8 w& d' y4 u &uiErr); 2 ^' E6 `, b1 J# \1 J6 I" I * K+ z* \! ^4 ^/ e& q SysFreeString(topicStr); 3 Z8 ]- E( q' J5 X! s* Y% k SysFreeString(itemStr);; h4 [1 A3 m+ Q8 I' f5 T* N( X2 ~
请问该程序是获得extend里面的哪个值?! S; v4 j: p8 o9 [8 E2 ?7 T9 H7 p
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????