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:+ y& J9 v4 y: F( O- c C( p; F
Name = (WCHAR *) L"Poke"; I, E5 b7 Z+ C* _7 p ! ~5 d& G% n" I) l6 Z: K
hr = m_pDisp->GetIDsOfNames (4 I7 L% t3 d) Q4 m
IID_NULL, // reserved5 a2 ~1 P+ U6 Y; I, A
&Name, // Array of names to get IDs for8 |9 X1 W# k# K, I. w
1, // # of names in the array ; f* R& L) N* ~' T! { LOCALE_SYSTEM_DEFAULT, // System locale" E7 L4 N" s- Z; w* K
&pokeID); // Array of IDs to fill on output' S! q. H$ Q/ y7 h% F( D8 l
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if (hr) 3 r7 T, o7 d& [ {5 M/ J! x' B S4 {+ j& I
MessageBox ("Get Poke Unsuccessful");' T1 V# O3 g6 t0 t+ ^% S
return; ) X- ]7 S! [- B4 b9 c }4 k9 V' A( v! ]- n
: I: o9 ]0 {4 w4 z' |5 _( {' P/**************************传递数据给extend**************************************/ . D Y; U# p' ~: R" C pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, }% i& o* H M- T/ b2 |
/ B6 E$ K9 h5 E, m! s. z# ]$ u/ y valueStr = SysAllocString((WCHAR *) L"1232");7 Y$ o5 t- k: h$ e
VariantInit(&pokeVariant[0]); , V# F, w9 `; e z$ H
pokeVariant[0].vt = VT_BSTR; / j2 J- X) Z* e( L$ O pokeVariant[0].bstrVal = valueStr;6 @" g4 [$ f' N
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 N6 F! m* O: S" J. M0 v
VariantInit(&pokeVariant[1]); ! M+ u4 }3 z1 j1 ?: ?$ P& B3 d# ?: I9 j pokeVariant[1].vt = VT_BSTR; ( }( G' v$ R! L0 u& R pokeVariant[1].bstrVal = itemStr; 9 e& P& B# q+ F) a7 H 3 |0 T, R& \7 J6 I topicStr = SysAllocString((WCHAR *) L"system"); ( q0 P5 W% s7 a T VariantInit(&pokeVariant[2]); % {$ P# `% x% C0 M! l( I- Y; J8 D+ ~
pokeVariant[2].vt = VT_BSTR; j; D* ^$ j; `1 n; A/ n! |3 q; m' \
pokeVariant[2].bstrVal = topicStr; ) T4 w% c3 c, l7 D" v. X! ^$ Z4 Z/ i5 a0 |+ J# Y2 }
// Set the DISPPARAMS structure that holds the variant. 3 [- p; A) \* l7 {! K' \% K8 r" `1 l' q" O; V2 x
dp.rgvarg = pokeVariant; 7 S Q! l$ l! v6 K, [" K dp.cArgs = 3; 8 S6 Y' y# _# c: w# X dp.rgdispidNamedArgs = NULL; . C1 C! w5 G1 p# D0 b% `4 E" A dp.cNamedArgs = 0;: Y! h) |0 B7 W" {' s
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// Call IDispatch::Invoke()* J: k6 P, B# |2 m. K' [
, W4 g+ `, l+ w# J hr = m_pDisp->Invoke(! ]% R/ T: z8 ], E; j2 N2 c) n
pokeID, ! R3 x' F* M! G7 A* F5 d IID_NULL, % n. q4 f6 l( |0 O7 M" x( M/ _ LOCALE_SYSTEM_DEFAULT, $ X B' H* u7 K5 e DISPATCH_METHOD, ! z% p: ?7 g, o) y8 Q+ f0 U h! d &dp,9 _% L! T0 U P3 I7 y& S/ g$ n3 q6 {2 g
NULL,3 q4 \1 @( C2 ^7 }
&ei, ) B+ C2 R2 T2 [5 n3 _ &uiErr); ( N& X1 M5 D9 Z, ]) v2 \! g0 x9 Y: y3 u5 y
SysFreeString(topicStr);% x; N; P( ]7 v) a
SysFreeString(itemStr);9 Q7 o2 ]2 ?/ q. G
SysFreeString(valueStr); 9 i" t# q5 S9 C- G; Q% V% P8 o% Q9 ~! g% G6 j. ?0 p' |; L
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??? j( v, D: q @" s
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????/ i7 g& a/ {1 N N( Z
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2.这是request的程序- o# T% B0 b+ F3 F; y
// Request a value from Extend( B. ~4 \* {- G- U& u
//: o9 |& Q5 e) Y1 t) P8 R
// Initialize the variant that will hold the BSTR. Set the variant's # e- q7 T0 N3 F7 I% K% P// type flag to indicate the fact that this variant holds a BSTR. Place the6 e$ G3 M2 }4 s
// BSTR into the variant structure.0 v7 S- h" {$ a7 E1 O5 b& e; q v
5 b$ o+ v4 H& Y. E9 S requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);& _0 o$ l! H0 i, _: u7 ~
" l* _6 i4 Q4 e, V& d* S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) \5 N7 q& P+ M2 P. b VariantInit(&requestVariant[0]); 5 r: T% S- c9 f requestVariant[0].vt = VT_BSTR;) k9 A( O" h4 l8 ?1 W. S
requestVariant[0].bstrVal = itemStr;5 o/ y" K8 W9 K. j* p% K; e
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topicStr = SysAllocString((WCHAR *) L"system");0 Q, q3 B1 Q) C
VariantInit(&requestVariant[1]); / k" ?% J: Q9 X$ e
requestVariant[1].vt = VT_BSTR;5 c$ O. d5 t* e
requestVariant[1].bstrVal = topicStr;/ A* H9 g3 l$ W$ h' g/ b$ f/ o
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// Set the DISPPARAMS structure that holds the variant. 3 I9 b2 s) d( \ + I/ K- G) u0 E2 _; I dp2.rgvarg = requestVariant; # E: J/ o8 Z$ M. W dp2.cArgs = 2; % ~8 v w+ z2 l8 i+ Q7 r/ x dp2.rgdispidNamedArgs = NULL;5 r5 r. B3 v7 w3 d8 x
dp2.cNamedArgs = 0;8 V2 R: Z o( M' i: |
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var.vt = VT_EMPTY; . ]9 U* a& p9 v- n4 C . k% F* L2 i( Q5 M3 X// Call IDispatch::Invoke()1 {$ Z8 E; u2 d e% c
/ N* x( N2 I' E t; p hr = m_pDisp->Invoke( - T5 } E( o# y requestID, 7 z" u. w; C" g3 f- ~ L5 J IID_NULL, 0 S" A; P$ }* ]& J3 V LOCALE_SYSTEM_DEFAULT,% N3 O: i+ P. i% c
DISPATCH_METHOD, 3 N3 @7 i0 S% A) V4 e2 {0 d8 ~- q- u &dp2, & z! a$ C U8 o) Q% \2 n( I9 d &var,2 ?! O& g4 a0 _. p7 H
&ei,% F! l$ \' w0 N& O' f4 n" H8 a$ B5 _
&uiErr);) l Q1 \: G0 K. B9 _0 ^7 `3 N
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SysFreeString(topicStr);! z5 e8 w; l4 a$ @- @% \4 C
SysFreeString(itemStr);, A4 `7 e; ^' Y& T4 S, o, `
请问该程序是获得extend里面的哪个值?- O, n: f$ e, N1 P) f
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????