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( s* q1 H1 @9 c# @* O: }: iName = (WCHAR *) L"Poke";3 G% L2 @9 c$ Q1 z5 [+ m, P$ v. h
% E" n) g, ^7 A- r$ i9 v5 Q hr = m_pDisp->GetIDsOfNames ( ! b# o% U1 K+ n2 J- b IID_NULL, // reserved 5 K& Y- y1 t7 h: r- c9 [4 D& m &Name, // Array of names to get IDs for $ a' A1 o; I% u4 i0 z# M: M 1, // # of names in the array # l& _5 U! O/ n: }: ~- v LOCALE_SYSTEM_DEFAULT, // System locale# u. k' N: b# `# r
&pokeID); // Array of IDs to fill on output5 S& o6 n# J. b' N
' Y. I9 U8 S* A/ {( l( t if (hr) + F8 V2 o5 l) ] {$ S2 y; [3 @( P
MessageBox ("Get Poke Unsuccessful");# M0 R) R% R" X. b* T& R
return;. v. Z6 [2 N1 q3 Y t0 @
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/**************************传递数据给extend**************************************/ % Y0 A+ f$ ?6 s: V pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 5 H! O2 C( V! J3 P: h& r, _ 0 a5 o# @. t& G/ F; T
valueStr = SysAllocString((WCHAR *) L"1232");9 a# i, s+ W) F5 K" ~) z2 i! k
VariantInit(&pokeVariant[0]); 0 H: Y2 \+ c. b
pokeVariant[0].vt = VT_BSTR; ' e0 R7 N1 _( R, ]0 H pokeVariant[0].bstrVal = valueStr;( V6 y6 P' w# a$ N4 q. w/ s
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: Q0 I7 j8 }5 }6 [& a2 v
VariantInit(&pokeVariant[1]); / M1 o* I+ \# C! z; e
pokeVariant[1].vt = VT_BSTR; : z$ |$ b) r, q7 z1 W% r1 L4 t pokeVariant[1].bstrVal = itemStr; & ~2 o/ W. T7 u) T9 O: x; s8 i$ A' k1 F0 `* r
topicStr = SysAllocString((WCHAR *) L"system"); 6 D5 y; V$ Q' ^+ W0 i VariantInit(&pokeVariant[2]); & `+ g% E' g- ]+ `
pokeVariant[2].vt = VT_BSTR; * ^- B- f' L* j; H* w' w( u' O; I pokeVariant[2].bstrVal = topicStr; ) c+ r: M) L' z& w. p ) r, `, n) V" _0 [1 O( i1 `// Set the DISPPARAMS structure that holds the variant. , D' x/ R4 M: V4 d' ^8 v) g- E+ f3 d& r
dp.rgvarg = pokeVariant; 4 x* q: L( d" i) ] dp.cArgs = 3; ( j( D3 T8 \" p k0 | dp.rgdispidNamedArgs = NULL;1 `0 K( M: Y/ Y) P
dp.cNamedArgs = 0; " V( p" g' ?! g; @4 q& R3 M " V8 j. {" ?+ C7 x* J// Call IDispatch::Invoke()0 v1 a- @' G. N* U
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hr = m_pDisp->Invoke( # p! F. S, Y- I. z9 @( T. { pokeID, , R0 C$ f* a: L$ t+ M% Q IID_NULL,$ E( Z7 k: B- F5 C8 I* c
LOCALE_SYSTEM_DEFAULT, 6 x; z8 f0 ~3 T; j5 t: L9 y x) i' o DISPATCH_METHOD,; a5 v8 o) Z( g7 S; P0 m3 ]- x
&dp, $ g( y- `- z, `9 W( U NULL,& \6 a5 c5 O2 h7 U; G2 n$ w( b
&ei, 1 ]' S( A2 h- d: X# i* f &uiErr); * k# k$ ?' ^ [$ i( K 8 g- o% |) i2 w SysFreeString(topicStr);' f- \& q0 o* V* V6 K0 D5 O: ~. W% i
SysFreeString(itemStr);. u$ h+ ?/ A4 T/ z/ l
SysFreeString(valueStr);" \6 b) Q4 m# f+ E! E
8 s* l/ w8 w: S: K a4 t; q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??? ( a) A' r7 z2 v% C' v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 W, W( B N" h! ?: q) T- P6 B
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2.这是request的程序 ) S1 M- E7 o, l2 Z3 a// Request a value from Extend & b+ D1 L) h5 l( _//, X' Q1 T4 W4 e. G* B; r a
// Initialize the variant that will hold the BSTR. Set the variant's2 k z% d0 `# _) X5 h; \+ G
// type flag to indicate the fact that this variant holds a BSTR. Place the- Z) i O" p& q% Q1 V
// BSTR into the variant structure.. s; |; J5 q- _) T% v |5 G. L5 w
- ^' n/ j) x! O3 v2 n! o( j6 ?2 r requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); & T$ u+ t# C6 p v. Y$ ` . d8 R- }. U# H E
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' O+ c+ g. I3 ? VariantInit(&requestVariant[0]); " r/ p, l$ n" k/ ?, q1 S2 [/ G
requestVariant[0].vt = VT_BSTR; ' V1 `1 h5 q; K4 k. r requestVariant[0].bstrVal = itemStr;% ~( V# v4 A) y3 a3 W# V
2 J" x3 m' v; | topicStr = SysAllocString((WCHAR *) L"system"); T. n; G2 J; C: [, x/ I VariantInit(&requestVariant[1]); 5 I' f6 S$ q, ?) C" d% W
requestVariant[1].vt = VT_BSTR; " o9 n) Q8 V& R- @0 m0 c requestVariant[1].bstrVal = topicStr; " I7 P; ^5 r: P0 W$ q* z9 S ; b$ p6 X1 l" @- y// Set the DISPPARAMS structure that holds the variant. 5 w: w) w6 Q% h) ?% K * o. w0 _. T: f7 v! x! S9 z( s dp2.rgvarg = requestVariant; / ~' k7 R Q! j" z" K8 }8 ~ dp2.cArgs = 2; , {/ S$ i' M. Y P j' { dp2.rgdispidNamedArgs = NULL;. J; w: ]0 W1 z
dp2.cNamedArgs = 0;( k; K+ h: p$ A+ j% W# D% O
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var.vt = VT_EMPTY; 8 h) t8 o8 |& c! i: @% ?2 i; O9 x6 {, H5 s+ D" A9 v
// Call IDispatch::Invoke()6 G$ T) z+ Y, u. f, e! J6 S
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hr = m_pDisp->Invoke($ `! v" T, t7 t3 Q" k' ?( u0 Z
requestID, 3 ?/ b, U/ [% |/ e9 q IID_NULL, $ f3 s2 G- W s$ M) W- P LOCALE_SYSTEM_DEFAULT, 8 b4 |0 C4 J2 P; p' p DISPATCH_METHOD, 8 q7 j& k7 |( Y- Y &dp2, . l1 L1 Z. Y; Z% f9 Y &var, 6 N" I7 K0 E8 M, j; w5 ` &ei,* _$ M1 L0 ~' G+ h: a
&uiErr);# z/ X$ _% k7 C, _: s5 V
0 J" b% W. N/ V% @ SysFreeString(topicStr);/ g( J! Y$ U# S
SysFreeString(itemStr);% s7 L& k" b( g; l$ `
请问该程序是获得extend里面的哪个值?% i& f& i) A6 N& i' R
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????