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:, P% D) c# \9 Q
Name = (WCHAR *) L"Poke";, t% c- o7 f& L/ h
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hr = m_pDisp->GetIDsOfNames (: Z/ N4 F, ?. F$ Q, s2 e% e5 O
IID_NULL, // reserved. o6 `+ T5 g A
&Name, // Array of names to get IDs for' @; I1 f0 n( s- T0 O$ W9 J6 m- D
1, // # of names in the array , \+ t' L* [+ h9 Y LOCALE_SYSTEM_DEFAULT, // System locale " W8 }' c, a7 f &pokeID); // Array of IDs to fill on output / X# ~8 H9 V; S b' p' p$ U% N - m0 @/ N9 ?' l: ]. l/ n* X6 y( X
if (hr)* }$ K6 q4 X) P; h2 b0 p
{ & c+ n. q. J+ L& P MessageBox ("Get Poke Unsuccessful"); t- o- S# b' b$ o- t+ s return;8 p/ c0 i1 U4 N* o& v
} + @. S6 Y7 d" e' q2 d5 o 3 T; n1 |/ |/ D. `/**************************传递数据给extend**************************************/3 X; r9 z6 p8 c, O
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 L' C* f4 n( |2 ]. {" j
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valueStr = SysAllocString((WCHAR *) L"1232"); 8 q3 c# q* V! W! r: B' H, }2 z VariantInit(&pokeVariant[0]); ! m* ^& ?5 @$ S
pokeVariant[0].vt = VT_BSTR; 1 j9 A" \7 i0 C6 F5 g) {$ T pokeVariant[0].bstrVal = valueStr; ' C/ W) g, r) ?. X! s3 w1 _' e3 b6 A7 t! N
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : _" `4 N2 R, K5 {0 M& F VariantInit(&pokeVariant[1]); * e4 m4 e n$ T2 b pokeVariant[1].vt = VT_BSTR; 2 I2 \9 h2 j; v- M; d pokeVariant[1].bstrVal = itemStr;! f1 @9 j7 y, W7 G2 H/ I9 V' n
7 @; c" a2 e% N* I. e; E# A. @ topicStr = SysAllocString((WCHAR *) L"system");1 N `( y T# Q+ w- Z
VariantInit(&pokeVariant[2]); ; }, Q: X5 ]+ w7 s4 e5 I pokeVariant[2].vt = VT_BSTR; * C. J0 n1 ~/ |- Y( w( }# q/ |* n pokeVariant[2].bstrVal = topicStr; & T2 b# K/ p6 a' B8 c# [( z, V" s0 ~! E
// Set the DISPPARAMS structure that holds the variant. ' m! Y- j2 b2 c& J- v $ I. x- a, }/ K, f" A dp.rgvarg = pokeVariant;5 i9 \" c( F; P' I8 ^8 |8 V* l
dp.cArgs = 3;# v( Z; ~ R$ ?" Q% t/ o
dp.rgdispidNamedArgs = NULL;. f; {6 f; P6 [1 Z4 V2 j
dp.cNamedArgs = 0;: y0 y9 G4 A' l7 q9 }
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// Call IDispatch::Invoke() : \9 s; s1 S# u% t* R: U6 @4 {8 P0 d; X( n8 g+ [* w
hr = m_pDisp->Invoke(6 ^- A; x% B6 u5 X
pokeID,* j# c' _) ^6 m7 Z
IID_NULL, & d8 L9 O2 ~9 u! \3 P LOCALE_SYSTEM_DEFAULT, * h" p% P$ c5 e6 E DISPATCH_METHOD, " e: V/ |$ N1 a &dp, ! N. V# v; l7 q* K* l! H# _ NULL,% R; }5 ?* @$ e$ q
&ei, 2 R1 S8 o4 a! ]3 ~ &uiErr);" m8 S' m9 [0 C2 G* |! S; U* j$ D
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SysFreeString(topicStr); 5 t, ?' W( y2 @( K SysFreeString(itemStr); $ V7 l6 {6 q3 V- o SysFreeString(valueStr);# g+ H& @) e$ U/ f& n: {# K- T
- f- Z6 u5 y- q* U% Q) W+ ?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??? , c5 v) {: ]% x# R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????4 O+ \$ z/ E8 b. l4 \' ~: N
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r2 i! I& b. R3 X2 L( Z' g6 w2.这是request的程序 + A2 R6 p( ]' s// Request a value from Extend4 \% \$ t! N. r
// : b" }: B; r4 L5 `7 R+ R" N// Initialize the variant that will hold the BSTR. Set the variant's) R! Y0 r$ B+ U* o3 @! ?5 |
// type flag to indicate the fact that this variant holds a BSTR. Place the . g8 B# O9 b m& M9 l0 a( C6 L// BSTR into the variant structure. 0 X/ h. g- I* Z / `4 A: q6 q; T* x; B) ^ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); : B, V. y7 d) ]. J# r* m* z # m; u' E( w( I, o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " k8 ~) Y7 G$ s VariantInit(&requestVariant[0]); % X5 p7 E$ b) i V# R) T( F, v
requestVariant[0].vt = VT_BSTR; ! @ P0 ^% {: J: w; ~) n( m& C requestVariant[0].bstrVal = itemStr;) ?' @" N$ {* _7 O: N, b
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topicStr = SysAllocString((WCHAR *) L"system");* @( e6 q3 ~: H3 ?$ v' q" w% I
VariantInit(&requestVariant[1]); % b6 r# ? i( Y. r# r
requestVariant[1].vt = VT_BSTR; * A/ T" ~6 \/ N requestVariant[1].bstrVal = topicStr;8 E' _$ B; D3 J; g9 S$ u- v
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// Set the DISPPARAMS structure that holds the variant.3 S+ w0 W4 P9 Q/ N& N/ J
+ j1 d$ j1 E' R/ O hr = m_pDisp->Invoke( b' ?! g6 x; G' S. S+ u) V6 F. g. T
requestID,5 n% O( ^& Q# |! G
IID_NULL," n( w: K. @& N& q" y& R$ K
LOCALE_SYSTEM_DEFAULT, `8 B% X( W5 t# R$ T8 G
DISPATCH_METHOD, . @7 P, A* s' E% b &dp2,/ `" N8 @3 Y. C; P9 x& P. B3 M) R
&var, * |: M+ d3 n1 m &ei, ) w( d' j s7 v1 C2 ^ &uiErr);' O( z9 P/ W/ z+ A