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: * w3 C) M: n1 C" q4 N1 wName = (WCHAR *) L"Poke";/ A; `' N7 V& O v1 @$ {
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hr = m_pDisp->GetIDsOfNames ( 4 w" N8 }+ |1 r2 e( }3 E; O8 \+ Z: j IID_NULL, // reserved " p& H0 s( P4 _, C: E( p &Name, // Array of names to get IDs for$ q& N/ J% t4 m+ x6 c3 |
1, // # of names in the array: W4 n; F' @1 @9 O- Y) v
LOCALE_SYSTEM_DEFAULT, // System locale1 \5 q9 x( |' o7 w/ v9 d b
&pokeID); // Array of IDs to fill on output . \# j \9 T8 B/ s$ F& e9 t ( s! o( m% l) `
if (hr)* H9 E+ D0 s# J* t9 ~% R
{ : ~+ t! v: \" ~ MessageBox ("Get Poke Unsuccessful"); R b) Q" `4 `3 Q$ h$ m
return; ( o$ u2 _! m' Y$ n, z } & z8 i9 a$ a, Z$ y0 ^, n% C7 [' L/ Z" U# V
/**************************传递数据给extend**************************************/1 [9 f8 q$ v6 T% C- v' V8 V
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ! s9 l6 t v" A8 m6 f# x( W ! T4 b( F# l2 w( G# B z
valueStr = SysAllocString((WCHAR *) L"1232");! V* {1 e! x6 }. V
VariantInit(&pokeVariant[0]); + r/ H6 R `" r& I; N' o
pokeVariant[0].vt = VT_BSTR;0 ~0 [, D! b6 N0 R( P. ?! c! F# E
pokeVariant[0].bstrVal = valueStr;/ F, Z2 m) c/ A9 M! q/ X
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / h. x" M" U- q) w6 a VariantInit(&pokeVariant[1]); # J. ~9 M) {6 S m# u
pokeVariant[1].vt = VT_BSTR;0 B1 i p5 |) ~/ f' l
pokeVariant[1].bstrVal = itemStr;/ }! H! |' J8 Z+ y: K8 N% S; k
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topicStr = SysAllocString((WCHAR *) L"system");8 G6 i8 L6 e( A: |7 {# z
VariantInit(&pokeVariant[2]); - \- S, v* k w& q' a: I8 p# ?% ?- i pokeVariant[2].vt = VT_BSTR; ) ]) q5 _" b5 T' t4 {( h4 M0 R0 M pokeVariant[2].bstrVal = topicStr; 4 y1 k5 j) ^ u% f/ T5 e6 V% C a# t3 }; D- [9 f0 f
// Set the DISPPARAMS structure that holds the variant.6 O% |8 P1 o. \: X
# x& h; F& y5 J* m0 ?2 c8 h2 i- k dp.rgvarg = pokeVariant;* `7 Q- i( l7 @$ r6 }) w6 b) p9 K
dp.cArgs = 3; ?& k* ]! Q* V/ Q. l
dp.rgdispidNamedArgs = NULL;& ~/ y$ { R# n8 v) ~/ u" F
dp.cNamedArgs = 0; o, p- y8 t# M) Y7 C
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// Call IDispatch::Invoke()6 D% z# P; y, |8 W A6 H& u2 S
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hr = m_pDisp->Invoke( $ h P0 N S* ?) m pokeID,2 q! M3 @( B! N& w9 W) K$ B( s
IID_NULL,. P Y6 y, E* d, M+ z2 ~& A% K
LOCALE_SYSTEM_DEFAULT, , C- p) j8 c# h DISPATCH_METHOD,' p8 F. f X/ \$ Z
&dp, 7 K* E# q/ n. C% X NULL,% G) V% w& M. W5 T$ k. y# h
&ei,& s+ \+ e3 v7 E/ D& q8 T% s
&uiErr); 0 ^# c) p0 {3 s# ]4 C, v9 x: y" G( U2 k" R- }" q( m
SysFreeString(topicStr); ; c) A7 w. h& e1 a. T- \$ I* j- b2 @ SysFreeString(itemStr); 5 @6 c+ A* R( p6 x SysFreeString(valueStr);) M/ N; V+ B! E) r" \; k
! R9 c M5 `9 V/ 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???4 u$ E Z- A" y- 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????' p1 U7 U$ \8 ^ U! P
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x+ k5 n+ ^: ^" t0 T9 {& b: Q2.这是request的程序 ; Q6 Y) h6 E1 f% a" E. `// Request a value from Extend/ |+ z: f& E3 C: Q: r, I) S/ Q, X
// 0 A, e* @1 v6 i; T+ i// Initialize the variant that will hold the BSTR. Set the variant's: `* q. x; S0 ]0 T; V. V
// type flag to indicate the fact that this variant holds a BSTR. Place the 9 a+ k+ k% C) \, w# a& X// BSTR into the variant structure.: w$ r5 }& J" g+ y- ^
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % B/ R. z% D) _8 Y) V5 ]+ N ; O4 y0 n: | a; ?$ K Y. f
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! A S* Q; P0 \# j0 g
VariantInit(&requestVariant[0]); ; R5 z* P7 L; ]. t; [1 ~! K requestVariant[0].vt = VT_BSTR;8 m# b' Z* H$ u" B3 c" z5 S
requestVariant[0].bstrVal = itemStr; ! k: a, T' E' w 2 g* A8 c6 q6 h topicStr = SysAllocString((WCHAR *) L"system");, \( _, R0 L- j0 B% V
VariantInit(&requestVariant[1]); + K. ~. |& n2 q. Q2 ?$ O
requestVariant[1].vt = VT_BSTR;% |/ P- g" _" k/ n" E
requestVariant[1].bstrVal = topicStr;" X% q# M$ x* ^& x+ m' S
. R$ m& j8 k* |// Set the DISPPARAMS structure that holds the variant.% ?! a, O! G/ k* t+ ~6 ?6 L- X
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dp2.rgvarg = requestVariant;( t: @& [( j. D! l/ h4 v4 j
dp2.cArgs = 2; - K! ~# R3 Y" Z# m( \" m dp2.rgdispidNamedArgs = NULL;3 w& g+ I8 H& A' G p6 E
dp2.cNamedArgs = 0;; H% g B7 i1 n3 e' U* h
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var.vt = VT_EMPTY;# B4 {8 ?8 a; \7 a1 v ^
& o5 ]* H* G" W, k// Call IDispatch::Invoke() ) j4 b0 Y- S! s. I. Q) ~, K p7 s, C: [$ N0 B, V# V) A8 H1 J
hr = m_pDisp->Invoke(; g/ t) P% X# n! U2 c( \7 u" ~7 N
requestID, # {/ G8 N% B' X1 o3 S7 n IID_NULL, * f; l7 C! N5 } LOCALE_SYSTEM_DEFAULT, ! C2 s" b! @( }' o DISPATCH_METHOD,' R1 y& D3 s) t8 ]/ C* F( n0 j$ ~
&dp2, 7 H6 k" e% k' b) Z0 y; f! s &var,- c, W R' D* H" v8 w ^& Y
&ei, . `6 `5 _5 E6 l2 ~ &uiErr);8 M. O+ e9 _" y/ A
- j! u( ?+ H& T$ ^; d# r SysFreeString(topicStr);6 v2 D+ A @+ \ l
SysFreeString(itemStr);0 `& B' G# G: Y1 _0 g$ r' ~
请问该程序是获得extend里面的哪个值? 6 {: T% v g! G% W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????