; f0 [* G6 b3 o- k! g( F1 g2.这是request的程序 1 v4 v) q, P, ]. A! ?! T// Request a value from Extend8 F( d/ S% j4 Y% P N$ A8 |# K
//& W' f' z1 y, @
// Initialize the variant that will hold the BSTR. Set the variant's ! e4 P. Z" l2 X// type flag to indicate the fact that this variant holds a BSTR. Place the2 {. \ {+ N8 j _
// BSTR into the variant structure.9 o4 i- e/ M2 X- \: H
1 R+ x* |! V# P4 p c requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 6 \) L# u; F2 I5 ]# {7 q 6 U, Z0 g3 q( [
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # |; b0 f X3 O7 T0 {+ ? VariantInit(&requestVariant[0]); 4 e/ e" ~" ~; K0 v7 b) c requestVariant[0].vt = VT_BSTR;: M) m* \/ v% `( v1 a! V
requestVariant[0].bstrVal = itemStr; + L1 `; J5 F* d+ m2 f L( O& U R6 \ topicStr = SysAllocString((WCHAR *) L"system"); 5 a/ l0 [) v- ^* _; V* a VariantInit(&requestVariant[1]); 7 T, C/ u/ |, b1 ]9 z
requestVariant[1].vt = VT_BSTR; ! @6 v: J% P- y& g; ^ requestVariant[1].bstrVal = topicStr; ( \# |" I9 N. c) o& \8 k9 k. w . ?/ b& \! _ r$ e0 s- b) K' q# b// Set the DISPPARAMS structure that holds the variant. " u( y4 T0 W: B; z& { 7 V+ b6 k" N8 v1 ^ dp2.rgvarg = requestVariant; ) R. s4 \2 f8 V" [. U2 z dp2.cArgs = 2;' @1 B9 J9 y! i: }, S
dp2.rgdispidNamedArgs = NULL;' @& G* S/ h4 F8 ?: b1 z/ R
dp2.cNamedArgs = 0;5 Y7 \& a: K4 w t& S
6 }1 k3 n. Y5 n9 n3 I8 C9 W6 D( D var.vt = VT_EMPTY;/ y9 x; U8 C( T( H( Y" Z% u
% Y" U4 k+ U/ k) A0 {// Call IDispatch::Invoke() ' I/ g$ @2 {8 D' @+ o. ]( c8 q4 y7 N& A; u9 z' y/ d( ~+ R& S0 Z
hr = m_pDisp->Invoke(! O3 h! k7 `9 `4 G$ i
requestID, , h0 j0 E" y* d1 W3 T IID_NULL, & ^: T B: ^* m6 C LOCALE_SYSTEM_DEFAULT,! `- U5 R/ _; v) B! X) S k o. K
DISPATCH_METHOD, * m/ X7 \6 S+ H/ H4 f &dp2, 5 R! r& Q5 Z2 {$ [$ i3 z &var,, ?) u: e* p2 h, j. a6 G+ r; j
&ei,# t; x% Y+ O0 r
&uiErr);6 y1 B+ f0 Q% Y$ P1 I7 b V
3 z$ \; B7 W2 C% j* u
SysFreeString(topicStr); 9 P k8 _6 ~3 f p5 n7 f ^* N SysFreeString(itemStr);/ J) Z- o- h0 o1 l
请问该程序是获得extend里面的哪个值?& m _" f) q5 c7 M% Z
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????