( r: |9 F k; [2 h8 t5 y" \ : u$ ^; @2 ? B2 H' s/ l- E2.这是request的程序 9 @' A6 a/ }% b8 l// Request a value from Extend* Z+ @) E" W7 s" h
// 3 m5 Y1 n* o) w// Initialize the variant that will hold the BSTR. Set the variant's % O( D# w5 G7 F7 y// type flag to indicate the fact that this variant holds a BSTR. Place the' E1 j+ G# {7 ^8 o6 U: c
// BSTR into the variant structure. ; g, N& ?* f# H( _0 ?7 A+ m7 k" G 4 B/ d* b# z. m. F- @ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 o+ E% h m+ ?" r
5 j8 {& w" D0 n8 o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ W0 a) J5 S: w, {
VariantInit(&requestVariant[0]); 4 ^; _7 T9 D% Q. T2 C4 s! {9 o
requestVariant[0].vt = VT_BSTR;' x! z) j: k6 d0 I. B- p) v6 L+ c
requestVariant[0].bstrVal = itemStr; 4 B6 _8 u, ^ ]0 C8 W+ s, P" h1 l3 M0 \' }6 P2 y
topicStr = SysAllocString((WCHAR *) L"system");/ Y$ ^. c+ m# f# c0 n
VariantInit(&requestVariant[1]); 4 \% x2 l( n1 ?! F" D
requestVariant[1].vt = VT_BSTR;+ \: ?; P) A3 Y/ Q
requestVariant[1].bstrVal = topicStr; 3 d% Y4 s/ S8 l/ {0 V/ m4 ?+ T4 N, z3 U# N
// Set the DISPPARAMS structure that holds the variant. , o" r1 x1 N, V. z# _: D) a/ I) k9 z4 d; s- Z- m) r6 z
dp2.rgvarg = requestVariant; . F* W7 D6 O7 @- j, B dp2.cArgs = 2; , ]# F! b9 `5 L8 B dp2.rgdispidNamedArgs = NULL; & V' S: L# S! w& N0 F dp2.cNamedArgs = 0; - J7 t) W( H! Q. w4 h4 Y8 n 1 d. S2 U+ i: }: | var.vt = VT_EMPTY; D" \8 A M9 n% ]3 d
, p3 p) ]% [9 b- H! a// Call IDispatch::Invoke() ( H9 `5 y8 j3 @" T# g& L 8 U7 z6 @+ [, Y hr = m_pDisp->Invoke( : Y/ S9 c' Z9 @1 w requestID,& J" v$ F! u; e4 D* k( w
IID_NULL, 0 O1 V. g' d4 X4 t1 a7 ^ LOCALE_SYSTEM_DEFAULT, + U; f- t# Y9 T# o- ]+ T" d5 | DISPATCH_METHOD, 3 M. r! s c' H &dp2,! G. N* f6 C8 v7 ~: h
&var, & ]* w+ @# ?+ o; M# e9 s `. d2 ? &ei,& ^7 y8 G0 J! m, L. z ~9 h
&uiErr); 7 G9 ^6 V- T5 T+ V, T5 \7 j. Z5 ` B2 |. N0 b0 K; h8 s
SysFreeString(topicStr);! p% @. o* i& T& z2 W1 `
SysFreeString(itemStr); - N7 Q, x. r! N! X0 O3 x$ P, C请问该程序是获得extend里面的哪个值?" \+ V% I+ o% E. N* N, C- U" n
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????