我现在用c++编写了一个程序,希望能够和extend交换数据,以及自动对extend进行一些操作。我参阅了例子里的关于OLE AUTOMATION方面的c++程序,但搞得不是很懂。比如说,c++程序向extend发送一个数据: : K% U/ D" n, y' Q8 |Name = (WCHAR *) L"Poke"; ' ]2 m5 r9 L6 b' O. V) N a ) L- _/ q, N' S, K! X
hr = m_pDisp->GetIDsOfNames (7 e& Q, |9 k/ U- O/ l* L
IID_NULL, // reserved . L' F W# c; d, u8 E &Name, // Array of names to get IDs for3 s% V, G5 x( j( Y
1, // # of names in the array: `, ?, }6 l* x8 \- z b
LOCALE_SYSTEM_DEFAULT, // System locale 7 U/ Z" Q6 V# P &pokeID); // Array of IDs to fill on output7 C! [# i) e) @9 ~! D
! _1 Q* K6 P- }' G if (hr) . h2 D S! h; e- K {; n$ t9 g% P8 \ @ p2 {* J' c
MessageBox ("Get Poke Unsuccessful");& K: v3 [& D, K6 N7 P9 v' k8 v+ _
return; i- U) J! X; H7 q; L% I& D7 _% Q }/ R7 g9 Z e0 v1 o* W' B
2 ^1 C( T, \ R- p" ?. x valueStr = SysAllocString((WCHAR *) L"1232"); ' `. z$ ~3 s8 W; i VariantInit(&pokeVariant[0]); 2 h' |; c. {7 x A* f8 p
pokeVariant[0].vt = VT_BSTR;6 M1 f5 @) ~2 C! k5 _0 ?& p
pokeVariant[0].bstrVal = valueStr; + K0 Y" e# M G5 o+ _, `: S- I8 ^" y+ \
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 Z1 _/ ]! L8 k9 k- ?) n
VariantInit(&pokeVariant[1]); 5 b! c% l k/ X5 K: M% |( I
pokeVariant[1].vt = VT_BSTR; 7 [0 G5 v0 j# h2 K pokeVariant[1].bstrVal = itemStr;' O5 T: Y6 O4 l7 u- X
4 c) {0 B# J2 t [ topicStr = SysAllocString((WCHAR *) L"system");. B; X8 p* N7 k0 z9 S( J* L
VariantInit(&pokeVariant[2]); 1 k3 C6 ~: ~$ [8 F% _% H- A
pokeVariant[2].vt = VT_BSTR;/ [0 |4 g' S( E6 ?4 H2 G
pokeVariant[2].bstrVal = topicStr;9 T. _" i8 |1 b; J; o3 f
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// Set the DISPPARAMS structure that holds the variant.6 f* g3 t: t& U* H" d
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dp.rgvarg = pokeVariant; 9 Y; J0 \( y# F; V dp.cArgs = 3; q, v. `, S5 m) q& ?+ n' m' t+ ]% q* w
dp.rgdispidNamedArgs = NULL; ! N$ D: L, c# B2 ?% F/ ]/ L dp.cNamedArgs = 0;2 O/ @; F5 {2 ]- {. T+ \! L, o
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// Call IDispatch::Invoke()! l j+ o, n: H
" s: ^6 n% c x* X0 h; Z hr = m_pDisp->Invoke(/ S: u; p' {2 Z6 j9 F
pokeID, 8 R- J$ [- |9 T5 d9 b( t IID_NULL,9 }: U0 Q" V- j$ G% Z6 d
LOCALE_SYSTEM_DEFAULT, : J! q& _ x2 z* B. H7 p DISPATCH_METHOD,1 T9 `( n& f4 l
&dp, A A4 a; R" J NULL, % y4 T2 [5 j' H+ g& _ &ei,# A; ]( c9 m* h' M
&uiErr); + C& s! \ t8 V. i+ `; [( I$ [" l# S+ u/ e
SysFreeString(topicStr);$ x7 [8 U6 K" N4 U" @# F1 n
SysFreeString(itemStr);7 G" p/ q- ~1 w
SysFreeString(valueStr); % s4 C6 M1 Q$ T2 `: M* ]. [! B2 G * r e3 ^( g) V v现在这个程序可以实现将1232这个数据发送到extend,extend有一个对话框弹出并出现1232这个数据,不知道这个对话框为什么会弹出并显示这个数据??? 2 u! k* s/ o9 `, U/ E此外我希望将这个数据赋给extend程序里面的一个变量,请问如何实现????" M4 J" d' ~' L
; n3 z' D9 P' V6 s# K' S 6 K! M; a, b4 w- C S2 d# \. x6 A6 L2.这是request的程序; B! H f' J$ [" q) _
// Request a value from Extend$ N7 M- a5 c; X" L
//( X9 w: S8 m& w8 u
// Initialize the variant that will hold the BSTR. Set the variant's / v. a3 b& y5 U: Y6 Z" ^, N// type flag to indicate the fact that this variant holds a BSTR. Place the 7 `6 y- X& S# `// BSTR into the variant structure.' ~* y/ i7 m$ m' S* s
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 s/ a" n e6 D1 p: S7 z
5 c O- E' {- L- {9 S. l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 D' S1 L8 j4 L% }
VariantInit(&requestVariant[0]); h$ U( {. _- J7 D7 q, I/ P requestVariant[0].vt = VT_BSTR; 2 c6 P4 E- @: O' W# g7 H requestVariant[0].bstrVal = itemStr; 9 s& n, W) P2 Z; N 5 q3 Z" B8 _( g" A1 h topicStr = SysAllocString((WCHAR *) L"system"); " o& d0 o0 N/ J VariantInit(&requestVariant[1]); 1 t) L- t# z, y8 T7 Y8 R7 ` requestVariant[1].vt = VT_BSTR; + E9 G; g) T/ `( n( g" p: s requestVariant[1].bstrVal = topicStr; 8 L% W$ \; n' A/ t/ Z1 x" H. d# E% g: V2 V
// Set the DISPPARAMS structure that holds the variant. + @2 w0 B+ \: {2 p9 _- @8 _" Y! [2 Y# O
dp2.rgvarg = requestVariant; + a$ b& t' P. B dp2.cArgs = 2; # H9 Z: q& S- P3 y dp2.rgdispidNamedArgs = NULL;3 ^( W: A& b5 `* ^" v
dp2.cNamedArgs = 0; ( ~+ H, x4 s* Q' f, E2 m . Y3 T# s. j" v& T5 Q var.vt = VT_EMPTY; 2 ^, p8 j/ S l- X: K$ v1 X: T: Z# `" f9 D+ @+ V
// Call IDispatch::Invoke()7 ^0 U1 E6 A% T) R0 Y0 [
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hr = m_pDisp->Invoke(4 J" ]% Z" {3 d8 s- {3 \
requestID,; u; g! O9 r: z" W
IID_NULL,# {; P4 G* _5 f: Q8 c8 Z$ F
LOCALE_SYSTEM_DEFAULT, 3 ]# o) C5 p$ J- j2 e DISPATCH_METHOD, 9 \; t" w0 ?7 J+ J- T/ t# M8 k &dp2,' x" @9 I7 J) U) N$ S0 k& i
&var,9 o4 M" Z+ \& N
&ei, & J5 m6 V: @' |2 i &uiErr);& f0 Y `( A/ a8 `/ t8 H. S
# @1 Z5 j' ?% ~% a! W" V i r SysFreeString(topicStr);1 q) T' q7 f6 x% {3 B$ U9 e
SysFreeString(itemStr); + N ?: J+ v+ @4 s请问该程序是获得extend里面的哪个值? * y; u/ ]3 k- i* c' W1 m) q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????