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: - Q) d; l/ \: P0 F2 K* c1 z( aName = (WCHAR *) L"Poke"; % o. Y$ M) X& w7 y& o6 L( E ! N7 c1 t5 A. \' j+ w hr = m_pDisp->GetIDsOfNames () ^: n9 X2 k1 W! T& L; T
IID_NULL, // reserved 1 [. `% \( b, S+ ]1 Q$ K$ G0 ` &Name, // Array of names to get IDs for ) _: ~, M; |! J$ N. g2 S6 i! m! W 1, // # of names in the array " B4 A! i7 [- ?/ [ LOCALE_SYSTEM_DEFAULT, // System locale 8 m( v0 F' Z/ A1 n$ U3 ]8 i. }0 m &pokeID); // Array of IDs to fill on output 2 F$ f+ j* n, s% r8 E( c ; a, K" R8 S8 D$ G
if (hr) 7 ^1 ]: @# d* Y% P4 G% ]& q6 \ { % E; i0 H9 A1 y! \& r- h MessageBox ("Get Poke Unsuccessful");) g6 G% c2 p1 A6 t% @2 ?
return;; P- r0 a( w' N) p. H3 j7 R
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/**************************传递数据给extend**************************************/ : l5 D: ]% W7 b pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 t, y& F6 X" { O2 P
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valueStr = SysAllocString((WCHAR *) L"1232");% }) v( e8 I( v. ]: t
VariantInit(&pokeVariant[0]); & X! l$ S$ p- @2 M% j! ]3 t pokeVariant[0].vt = VT_BSTR;; m9 Z* N& a6 a, \) X! e
pokeVariant[0].bstrVal = valueStr; 1 `! K+ e2 m8 w% M/ b1 P9 ? 6 a) k4 {8 d3 B5 T' y" w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 _2 t1 I* r& l; f5 s
VariantInit(&pokeVariant[1]); * J1 |" Z& L) R/ L
pokeVariant[1].vt = VT_BSTR; ! n0 Z. R9 c4 w% Q. Y pokeVariant[1].bstrVal = itemStr; M& n7 {2 b2 G1 P3 T n, i2 f
" \1 F) P0 y, g topicStr = SysAllocString((WCHAR *) L"system"); Z4 Q" ~3 \1 g# t! Q/ e# [+ ? VariantInit(&pokeVariant[2]); * P* t, A" y7 W3 g- o. v
pokeVariant[2].vt = VT_BSTR; l! ?4 b) H; S0 f0 f/ N0 q pokeVariant[2].bstrVal = topicStr;! C _% T- }0 p* @8 I- B
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// Set the DISPPARAMS structure that holds the variant. ; K! [/ E/ Q7 G V y - k; R* f9 C$ \+ a7 N) O dp.rgvarg = pokeVariant; ! \! Y% U+ Z6 p( p dp.cArgs = 3;6 |8 X6 d, g, Z$ Q6 z5 d: ?: Y- d" H
dp.rgdispidNamedArgs = NULL;: S% L& I4 ^! x* e8 M/ ?
dp.cNamedArgs = 0; 1 o7 F3 Z- w) g- }+ d4 w3 K9 l/ _1 @
// Call IDispatch::Invoke()$ |& c, U! R3 ^9 G$ M
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hr = m_pDisp->Invoke(: l/ C7 Z- u& q1 F: }
pokeID, % {3 Y2 k$ E( q: C3 r: U IID_NULL,, s+ w' q H1 c% g, C* u0 y
LOCALE_SYSTEM_DEFAULT,* |# f7 P4 \% c5 b l
DISPATCH_METHOD,) d8 G9 k9 ?: j/ v5 l5 j
&dp, 7 o8 P( C0 u$ ?" V4 I NULL, : G0 x, p8 g# \; a &ei,% x! l9 C4 U4 V& v1 }5 f
&uiErr); : @3 Q- n* H" A) _6 W6 V2 K 8 ^0 s4 t# u: [8 f, X9 A SysFreeString(topicStr);+ O$ F) s$ o7 X7 Z
SysFreeString(itemStr);$ s z0 Z( M8 i. |6 o" h0 ~
SysFreeString(valueStr); K+ |- D* y; J `( ]: w
; U8 _/ T( Z) F7 L! i# s6 s S k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??? , t ], t! t, L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???? 7 n( O" O9 b8 h 8 h. ^9 Y. U; F1 m/ V& S% @ ' p7 |0 F' Q% w0 t9 `2.这是request的程序 9 q* K3 ]. v4 ]& x& \// Request a value from Extend @! }# |3 q o9 n& h//+ ~" g% s( B' [% Q
// Initialize the variant that will hold the BSTR. Set the variant's 9 ~# |; K& F* c" s u" q, ]: I3 {& c; A// type flag to indicate the fact that this variant holds a BSTR. Place the 6 \: o% b' i) j- n6 f; d$ \5 s9 B// BSTR into the variant structure.6 r4 B. H; X, D) ~9 R
/ m2 \5 P1 M- R5 O requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) m( J% D# H- R; x/ t
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : q: o; P% ^ w1 p/ t) O VariantInit(&requestVariant[0]); - D, I7 P6 ~/ f$ u
requestVariant[0].vt = VT_BSTR;, i* k; b: i5 }
requestVariant[0].bstrVal = itemStr; + b5 f" E- z+ I; v, W+ C. ]/ S [4 X1 ]) D* C * ~* b7 X& q( F* ?8 e- K' ?5 N topicStr = SysAllocString((WCHAR *) L"system"); + U( ]* Y$ {3 e8 s; J& H# T VariantInit(&requestVariant[1]); : e5 Y+ _( ]% l' K8 q requestVariant[1].vt = VT_BSTR;0 v# @7 P5 e( G, C( G2 k
requestVariant[1].bstrVal = topicStr;6 ? c! x/ x ]/ s6 h
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// Set the DISPPARAMS structure that holds the variant. 7 ~+ r% b1 o( T* F+ R7 f* b % a% q% e$ O. z+ E. P( G5 I dp2.rgvarg = requestVariant; ( h, Z9 F0 b k9 ?; { dp2.cArgs = 2;$ D6 k2 }; G! A3 U+ I
dp2.rgdispidNamedArgs = NULL; 1 k. d. S0 A% x5 T dp2.cNamedArgs = 0;$ `5 P2 J9 E% i
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var.vt = VT_EMPTY;" E, ` x& n0 q5 t
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// Call IDispatch::Invoke()* ]( c* D2 N- T" `% q
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hr = m_pDisp->Invoke(+ f, E: }4 L H% x
requestID,; T! O8 c# W* F, _
IID_NULL, ; B! z8 ^& z1 v) N1 e LOCALE_SYSTEM_DEFAULT, ' p, s' }4 X. M DISPATCH_METHOD, * ^ i7 Q4 Z* r% V4 ? &dp2,1 d- T; o! m( c/ r6 ~7 @ W
&var, / _8 y$ p* z( r &ei,; |6 G! F' c8 z: h; S" A( b: m
&uiErr); ) {( Y3 b" L& _% Y 1 h- R/ F; D! \8 A# ]9 ^ SysFreeString(topicStr);6 p& b3 Q/ [$ ^5 P4 L
SysFreeString(itemStr); $ h7 W, N# j) N0 a7 n8 C请问该程序是获得extend里面的哪个值? 5 F$ }6 m' k- F& ~ ~# Q e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????