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: 6 A. ^5 i5 ^1 \! |+ u) i! G. LName = (WCHAR *) L"Poke";" [) s) d; }* V) r1 y; Y9 R& d
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hr = m_pDisp->GetIDsOfNames ( n% V6 `- Y5 x+ P' p6 I8 c& _ IID_NULL, // reserved4 Q4 {# J: Q* P
&Name, // Array of names to get IDs for/ @3 t* I1 D" X# ^' |
1, // # of names in the array + i- }7 ^7 n. W# C7 H LOCALE_SYSTEM_DEFAULT, // System locale `- C9 i3 f n. b; `
&pokeID); // Array of IDs to fill on output6 q" C7 H! A; l
( _/ y8 ~; S" E7 w% r; a4 K4 ] if (hr) $ l+ t* A! h* E9 k: w { ! O! X, K( l3 a MessageBox ("Get Poke Unsuccessful");( \. j9 [1 c* q1 U$ [" _
return; % V, h# B }3 g$ j$ C }& f6 P" h$ i/ ?5 t) B
+ t3 q! V) X2 x b/**************************传递数据给extend**************************************/ 5 d9 E3 l9 u" c0 Y% w pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 3 ~# u5 ^5 W0 h7 J4 L, |. Y 8 T; z& ?) v$ m4 [9 ]# j# e& {
valueStr = SysAllocString((WCHAR *) L"1232");0 t+ t# |4 ~! k# \* h) f
VariantInit(&pokeVariant[0]); ! V2 A: d) }- s& D J( n! s pokeVariant[0].vt = VT_BSTR; 8 ^% s4 D9 D3 l# N, u pokeVariant[0].bstrVal = valueStr;/ E6 _# r: a! s7 O
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' L9 X" ?# z# M+ h J VariantInit(&pokeVariant[1]); 5 L' D: s, B" s" q( h
pokeVariant[1].vt = VT_BSTR; ; @; d/ H& T4 w" E; \. B5 g+ q pokeVariant[1].bstrVal = itemStr;+ y3 I% ~# k* z- Q2 ~
* T3 ~+ h9 F: _* N h V0 n topicStr = SysAllocString((WCHAR *) L"system"); ; [, p6 i0 {# L" P4 e VariantInit(&pokeVariant[2]); / Z$ F+ a6 W8 _; l
pokeVariant[2].vt = VT_BSTR;5 N7 U& E( b5 a' Z: j1 i
pokeVariant[2].bstrVal = topicStr;; Z, m5 ` e& Z/ }4 P: R' y
9 a! u" k; T# R; f6 X// Set the DISPPARAMS structure that holds the variant. 6 l `* Z0 a. W! o! K$ L, v9 z* k* P - J" I& j- Z! ]" j! A: ]+ U dp.rgvarg = pokeVariant;$ b0 d; m. @6 m3 O0 a+ \0 m$ J
dp.cArgs = 3; % T$ O! `& m; q R( l dp.rgdispidNamedArgs = NULL;( `2 f1 b6 x# B% k
dp.cNamedArgs = 0;$ Z/ B+ q8 Y* ?$ V
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// Call IDispatch::Invoke() " z/ D3 y V h3 j# i 2 B* i* G& [; h3 Z2 [; @ hr = m_pDisp->Invoke( # Q! S+ v; [0 N- T4 U' I6 c( L pokeID,/ s) ?3 \; [, m6 t0 z7 c& P, O6 R
IID_NULL,% O4 B+ y/ J" w6 @. [; R
LOCALE_SYSTEM_DEFAULT,5 x* |: Y% R Q! j) N0 q
DISPATCH_METHOD, 5 J" S9 V5 Z8 P' S" i &dp, 3 |1 T% n4 V& Q% v# R NULL, ; ]; t7 t3 j& i- q! q &ei, 1 L5 T* ]' Z0 N& a" X- s &uiErr);7 S0 e) ?! {9 t1 A1 R5 U$ S
5 J( f1 C. }2 k SysFreeString(topicStr);( d2 r0 N- |7 j2 o
SysFreeString(itemStr);# t# l f. U( _( B
SysFreeString(valueStr); 3 \; n! R: D: b, H7 I- g' ?5 r! ^# A6 v- a# s9 }5 D8 D0 @
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???) f$ {+ m% h" h# S4 P5 @( X
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???? 3 `/ n0 ^, v. Z7 P J7 d2 p5 b8 W4 D" ?2 q* T* f+ s$ d& V: _( g
2.这是request的程序, j+ ^: y/ b( V6 k( T
// Request a value from Extend4 Q2 w2 q( T4 d/ y( d1 Z' d
//2 s5 J8 B+ @8 `2 n: Y! o7 z/ ~" O$ |
// Initialize the variant that will hold the BSTR. Set the variant's0 Z) t2 Y* Z7 v
// type flag to indicate the fact that this variant holds a BSTR. Place the 3 o+ k" O! \6 { s! m _! J, u// BSTR into the variant structure. 5 C* z5 r5 u! I7 h# {; K; I. N" R" G) ~( c, {" D7 L/ I
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 3 ?7 S5 U3 _6 R 4 H+ W4 i5 t* J! n/ L
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: E2 h; y. b* f# A: |5 ]% F7 n
VariantInit(&requestVariant[0]); o( a. ~6 k: J" V- k) ]% `. s requestVariant[0].vt = VT_BSTR;( r0 p: Q; Q# m3 S# W9 ?; Q/ x
requestVariant[0].bstrVal = itemStr; " I; E0 C) N+ A. k( W : z3 W, Z1 r6 k- d: V topicStr = SysAllocString((WCHAR *) L"system"); 3 _5 N; H) I- G VariantInit(&requestVariant[1]); & X. J, {5 B7 H+ a0 h
requestVariant[1].vt = VT_BSTR; ) d( y' N, Q$ d! T9 H [8 o requestVariant[1].bstrVal = topicStr;) r( W3 h6 R7 q1 A
/ \- U- Y5 ^0 \% M1 n1 i1 i* F3 o// Set the DISPPARAMS structure that holds the variant.1 l& X2 ~& S7 k' j& x" c- t
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dp2.rgvarg = requestVariant; ' d1 h p; B9 z$ @: S( g2 X dp2.cArgs = 2; * b Z* H- |# V- C1 b9 V9 z$ e dp2.rgdispidNamedArgs = NULL; / t6 K3 [1 Y0 K7 s8 y/ I dp2.cNamedArgs = 0; 5 o' [6 z& f/ h/ R 7 s/ T/ N: t# w$ N, a. d8 r* S! Q; f var.vt = VT_EMPTY; ! k& h: |8 @& m% M , @' l' ?: c4 G' K) U// Call IDispatch::Invoke() " ]7 X. w+ z& w" {) Y9 }- H2 H0 i7 \5 v2 D
hr = m_pDisp->Invoke(2 c8 c$ R' N9 N" ~
requestID,4 l( H: G5 l2 V, i* {" B# n
IID_NULL, $ W. S: L9 V9 a LOCALE_SYSTEM_DEFAULT, 0 A* _8 ]- _2 w9 o* @; P DISPATCH_METHOD, " s* n0 I0 z8 T3 N+ c6 | &dp2, 2 d( o9 O+ W; O7 u- v8 H &var, 4 d2 E( U' C/ R0 [8 ^5 ? &ei,% _9 E. W- Q2 j* C v5 C
&uiErr);. j$ v( q7 a$ T- S