% B- Q- v& L/ f$ z: M4 k, @& p$ X 6 \6 p+ t( {" z5 L+ b$ p2.这是request的程序 + I8 S: R1 Y& g% c3 G// Request a value from Extend / z! g, q5 u7 p% _; K- X" N//5 s. y- J( b Q5 u. C v2 L
// Initialize the variant that will hold the BSTR. Set the variant's; l: ?8 X+ j( w3 @. w
// type flag to indicate the fact that this variant holds a BSTR. Place the6 W7 H0 h% A! Z* W) V* P* B
// BSTR into the variant structure.4 [. |( Q; l5 j9 [: e" o: d) B1 G
5 i9 R7 R; W L) m/ V7 d requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 7 X( m/ w0 M/ d2 t; g* _ 8 p$ j7 N$ {! ^' H# Q) Q
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 M# e8 R8 G9 h3 Q& t0 J a4 Z VariantInit(&requestVariant[0]); / s7 q" I7 e. P ] requestVariant[0].vt = VT_BSTR;' O' S1 j; R" \: l' S- B' c
requestVariant[0].bstrVal = itemStr;6 u3 S6 Q. l. `4 G& ^
. Z# P0 ?, r3 Y# ?+ |% a/ u ^2 U# ? h topicStr = SysAllocString((WCHAR *) L"system");' M( R0 W# S- M- V
VariantInit(&requestVariant[1]); $ _! w# `/ }6 \4 D
requestVariant[1].vt = VT_BSTR; 2 V3 m6 l2 U) P' ` requestVariant[1].bstrVal = topicStr;' Q) n& F9 T: a2 g/ ^- \" M
+ K( I" C- k1 E- Y2 B( Y6 ~ J5 x8 i// Set the DISPPARAMS structure that holds the variant. ) l7 t0 p% W5 w$ N* ?- M/ {, W1 ^2 _& `; i& p; S; `7 T; {& }9 j
dp2.rgvarg = requestVariant; $ N. g4 R0 d' h% {: j& Y dp2.cArgs = 2;: W- K0 _+ C* n/ M# I3 J
dp2.rgdispidNamedArgs = NULL; 1 j2 r$ k; N- b9 |' x# x: L. Y4 B' N, s dp2.cNamedArgs = 0; . U& s2 A- H/ b: m' B# W' S0 d0 n' [
var.vt = VT_EMPTY; - b& F" Y: m* K) s 6 Q- Z' W# m |/ ?+ w8 u1 N1 v// Call IDispatch::Invoke() * K. a: F% h+ m( `7 k' `4 R& F( U; F: L5 Q4 o6 `. c
hr = m_pDisp->Invoke( , f \9 w" M" x requestID, 3 ?# y' ^% T$ e0 R IID_NULL,( |4 S5 R' r0 ^# T# a0 _
LOCALE_SYSTEM_DEFAULT, 6 z: G" @! a9 f' O5 O8 ]. A DISPATCH_METHOD,; U' \& f( P! W* a. P v2 u) s
&dp2, ( E3 _7 P" U+ D0 I. ~! h, v$ O &var,7 i9 [) t' ]# m: U! P0 X4 o6 J
&ei, ) e/ J+ i I9 g& ]4 l: s4 j &uiErr);2 n, R1 _, |; ^ `
- r7 J) j& ~: b
SysFreeString(topicStr);, I3 g1 C, _. v! `' _
SysFreeString(itemStr);9 i& i" p! Q [2 d
请问该程序是获得extend里面的哪个值? 2 b! g* Q7 w* k5 t# g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????