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: . v5 f% D. [! ]) T9 O% XName = (WCHAR *) L"Poke"; m, I( ~3 h- M3 d% a
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hr = m_pDisp->GetIDsOfNames (& ?0 k+ j# A/ F1 z+ m8 ]$ e0 E! g
IID_NULL, // reserved % b% l; Q+ } P( _. L &Name, // Array of names to get IDs for ! [4 S; {6 a" d2 { 1, // # of names in the array : ?3 s7 @! c A# O; S LOCALE_SYSTEM_DEFAULT, // System locale* M6 {1 Q, U# c
&pokeID); // Array of IDs to fill on output0 I K& D8 C; A5 Z/ [ |" g
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if (hr) 2 r$ o j' K! r- R, }0 g/ _ {' U1 P3 p$ h$ H1 d: k
MessageBox ("Get Poke Unsuccessful");8 s" B* X* x! U, _2 \
return; 5 m& _' e3 Z0 c }/ c* w- a% `' ^' j, R
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/**************************传递数据给extend**************************************/% {& E8 C* p2 m( u, z/ B
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 I1 v% D0 k: s" l8 M. V2 u- ?
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valueStr = SysAllocString((WCHAR *) L"1232");' Z/ |* H, y4 B3 u$ f4 u; D* q
VariantInit(&pokeVariant[0]); 3 R. M) {8 U- O1 v
pokeVariant[0].vt = VT_BSTR;4 {0 R( a* l: l& D3 m& }
pokeVariant[0].bstrVal = valueStr;9 s1 ?' A0 a; s
' o, _8 S2 [7 | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + J* g& i' A( b+ p9 d VariantInit(&pokeVariant[1]); 4 t$ K# D: _/ h9 _2 ^& ^0 L0 {$ c& [ pokeVariant[1].vt = VT_BSTR; 7 l9 H% ^: ?( O( o* d# C pokeVariant[1].bstrVal = itemStr; 4 z! O' O& K* i+ {+ Q 2 t$ P3 s! i E topicStr = SysAllocString((WCHAR *) L"system"); , E9 G2 w$ I& c% p# m2 |; q VariantInit(&pokeVariant[2]); - F2 l5 U h* ]
pokeVariant[2].vt = VT_BSTR;3 n4 D' v0 O r) O9 O G
pokeVariant[2].bstrVal = topicStr; + e" s- Q6 P3 ` U+ P( |" K - O c6 N" M2 H// Set the DISPPARAMS structure that holds the variant. $ F& Z7 y- q O: J' s2 Q9 b 9 l4 M. T* K+ B& O g" [. f dp.rgvarg = pokeVariant; ! _9 S+ i8 H. {/ }+ ], b) I, X dp.cArgs = 3;' V7 A* h4 |+ j% e+ ^
dp.rgdispidNamedArgs = NULL; - o$ M5 O+ l& {, L. {0 C# R. }% ^ dp.cNamedArgs = 0;: d& P" r9 G% N3 F4 R! z$ }% J
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// Call IDispatch::Invoke() 8 _4 Q6 M: z6 U' ?+ {6 z( M+ g1 g$ T0 _1 _; B( X/ Y
hr = m_pDisp->Invoke( 9 X, m U+ n- [+ c* r* a9 k5 u pokeID,( ~+ n6 c( n& }0 C
IID_NULL, & \- N z& n" e8 e2 ^8 }. G LOCALE_SYSTEM_DEFAULT,2 F( m3 h0 g. v+ p& A& p! j; T0 g( G
DISPATCH_METHOD,( g6 ]8 `3 O3 H9 {& \* h
&dp, + B8 z- U. E4 g2 [1 j3 f5 f NULL,$ q9 a8 u5 m! F2 k# B
&ei, ( ?* K: j, z' ~ &uiErr); # m3 Z* g x& `9 ]! o# q1 v. q X
SysFreeString(topicStr);! N0 X( W( e X- @
SysFreeString(itemStr);8 }! v' i c& ]) J7 A8 S1 Z
SysFreeString(valueStr); [$ _$ m0 H2 N9 `; g$ z+ @+ W2 _, `* n2 r$ e& @4 {, V
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/ H' i7 G8 D" ]( g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????' d. @! e# c& \8 D3 ~2 S
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2.这是request的程序/ T4 \2 f, U* f& Q
// Request a value from Extend . t7 V% h0 c; t. H% l9 U//- Q; E( H5 z( \- i f
// Initialize the variant that will hold the BSTR. Set the variant's 0 R& e0 e4 [5 b& H8 D1 a9 n// type flag to indicate the fact that this variant holds a BSTR. Place the7 P% P2 g5 B$ p! i+ e
// BSTR into the variant structure. + _$ y7 z% }' F0 T% S 2 ?* G( B8 c( t/ k% J- L requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);" @- j! r7 ~6 A* H3 w7 M
0 x: y' S0 J! x& m! P- ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 n+ B/ {9 b+ w* _
VariantInit(&requestVariant[0]); % o1 I m6 Y* L4 J0 H. m3 D
requestVariant[0].vt = VT_BSTR;! X: ~$ Z# M j9 h+ {8 h& |
requestVariant[0].bstrVal = itemStr;8 ] a1 S- Q4 r, k' M# v
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topicStr = SysAllocString((WCHAR *) L"system"); 3 C9 j% r2 Y$ U* e' C VariantInit(&requestVariant[1]); & K3 A# B3 W9 c# N) f requestVariant[1].vt = VT_BSTR;& r2 ]& M; H& u% C, ~" A# H% w
requestVariant[1].bstrVal = topicStr;, m- {/ ^3 Z- P
& ~( |) r7 U' r G: V! {5 G" i7 S6 |0 o// Set the DISPPARAMS structure that holds the variant.5 F7 x; R2 w x- ^* |, R. S; l. x
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dp2.rgvarg = requestVariant;9 F: j, ?! o, g( n
dp2.cArgs = 2;' [! v2 \; Q1 o# t
dp2.rgdispidNamedArgs = NULL; * T$ O# V: U$ k dp2.cNamedArgs = 0; 8 x" O" s( R$ \0 K( W5 p; L0 S1 d2 T; L8 Q0 }4 h X
var.vt = VT_EMPTY; v* `" d3 c- E* F) O, M
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// Call IDispatch::Invoke() ; ]2 }$ R b% \9 a: s# d- h/ H$ W! V% z& F7 f. j, i- W
hr = m_pDisp->Invoke(% t. T; t' S. D& S2 Y, s3 P$ w
requestID, # g3 t: o: l( V IID_NULL, $ M& d0 a( M% j: \" r LOCALE_SYSTEM_DEFAULT, ) U+ f U" x$ C" T# _+ R( v% Z* a- E DISPATCH_METHOD, ; l8 \ g* w* M5 _/ j &dp2, , O2 \! @, [" k: ~) b! x* O &var,, a) w+ w1 w1 L
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&uiErr); 6 g* V1 N4 c2 _4 {! I- P8 ]/ T6 v/ q " L" f x! f& t SysFreeString(topicStr);; j) y$ v3 M0 \( `5 z
SysFreeString(itemStr); 4 F1 k0 ^( Y# g( Z) h7 u请问该程序是获得extend里面的哪个值?% v& L( w) ~: j! J8 d M
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????