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:5 ~6 \, |( D7 ], m8 i& v; Z
Name = (WCHAR *) L"Poke";) h6 o1 W5 r5 m5 }3 K O8 D
" L5 J( B+ z; }1 b& O hr = m_pDisp->GetIDsOfNames ( # E/ O) ~+ @- F$ e7 T0 L IID_NULL, // reserved% z# d8 e0 }8 Y7 B( X# q7 r
&Name, // Array of names to get IDs for# D) @4 k; U! |, B2 ]" U2 ^8 L
1, // # of names in the array 6 m8 o/ Z) e A) s# B! t7 I LOCALE_SYSTEM_DEFAULT, // System locale 9 I+ t/ h8 V0 l* H- D' F8 _! t+ ^7 G$ u &pokeID); // Array of IDs to fill on output3 e; ]" S% N1 {4 W0 F
: U; N9 ~2 s5 ~+ g; z& j: | if (hr)2 [& g, _( d7 O6 o
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MessageBox ("Get Poke Unsuccessful"); 7 y' n5 N% h, R6 W: Q0 v E return;9 D$ y. _* g& E) R$ E- U, i' T
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) t& m8 A' ]8 ]$ N. B& H4 {/**************************传递数据给extend**************************************/ + k% T& P- G" L- L; F3 D pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); + D. K) I4 b5 G- ^, ^( ]# C: c: J , b0 @* V) c( w4 u+ F: N r
valueStr = SysAllocString((WCHAR *) L"1232");2 M: ^) T* i |9 c
VariantInit(&pokeVariant[0]); / i+ g% b1 B4 |0 h: d: q2 K* W
pokeVariant[0].vt = VT_BSTR; & ?( Q5 m8 p5 p9 { pokeVariant[0].bstrVal = valueStr; 9 p4 u% z8 y" F! H0 _9 W 5 ^/ C1 O5 u4 b+ r: s0 b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & q7 U! h& Y7 P9 k# B a7 n ^. a VariantInit(&pokeVariant[1]); + p. y9 o' j0 U4 I* B0 V pokeVariant[1].vt = VT_BSTR; 4 K' e) y7 [" C; v8 k, b* S pokeVariant[1].bstrVal = itemStr; ( h0 X. J! y5 }% \# W- ^% G: F9 }5 g9 Q; m
topicStr = SysAllocString((WCHAR *) L"system"); + D! k5 z5 }' N B8 [ VariantInit(&pokeVariant[2]); " f0 ^7 Y4 I* Z; s! q" j
pokeVariant[2].vt = VT_BSTR;! C7 c/ }5 U* \1 b J, n7 c; `1 U
pokeVariant[2].bstrVal = topicStr; + R" {5 `3 |# [2 d& i# d9 ~1 K; u9 a1 L5 r
// Set the DISPPARAMS structure that holds the variant. : E$ K3 E& r1 |& G ^: ?9 B2 s8 Y8 U+ g8 |
dp.rgvarg = pokeVariant;3 E; T8 K. @3 \# c$ w3 J9 K
dp.cArgs = 3; 8 N, O3 A! e7 v. h) {) ^ R dp.rgdispidNamedArgs = NULL;; n0 h! d2 H, S0 h$ K
dp.cNamedArgs = 0;+ J; \# K7 v) ^- N* Y1 w8 P
* [ J: O$ W6 M" G& V; V. D// Call IDispatch::Invoke() 0 k) t9 J. X2 t0 q( X7 i+ r+ C# `# F; G3 }6 u' z- G" c! p
hr = m_pDisp->Invoke( ; @2 v9 N+ j: l& f pokeID, ( |$ `/ h; [6 J, h: o6 f IID_NULL,- r: Y2 g' ~/ h& Z
LOCALE_SYSTEM_DEFAULT,8 ?; ~( [6 m( c6 R! A
DISPATCH_METHOD,; F) }/ @1 k( P% J0 s
&dp, + U2 G& Z: _+ V2 ^8 x1 a NULL, ( c) G# s7 `) r7 M* w: Q8 Z, G/ K. R &ei,( D1 X' K+ G) {7 ~. }
&uiErr); $ K% y2 p, t" ~8 \, `3 V7 U( d ; q- a7 v0 A1 Z8 J) Q/ O SysFreeString(topicStr); 8 h) z! N' ?/ S3 D SysFreeString(itemStr);- ]1 A y8 I v- j* F( o1 h
SysFreeString(valueStr); $ l3 o9 j" {( B( ?0 ~ 2 B( M2 I p# [( N) 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??? N3 M6 f' ~2 v; `$ {- z) `& F* Y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 {1 y2 q2 v4 e! s# r3 C
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2.这是request的程序; _6 n9 k9 I; N* d) y" ]. m8 ~
// Request a value from Extend + i- S+ p5 M3 u" k//; A; I' Q( l! I- r! A
// Initialize the variant that will hold the BSTR. Set the variant's 4 }1 T/ I1 P9 w/ X// type flag to indicate the fact that this variant holds a BSTR. Place the1 Z) N- p$ F. o l( S
// BSTR into the variant structure.9 ^2 j8 k; T/ q) @2 [$ ^
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); , h3 \; @+ |' t) X# x7 P, I, h ! `- A5 ~4 ?9 e- }! G( Y0 N' k
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 p; W' F4 E% P VariantInit(&requestVariant[0]); H0 t% H; Y' {) G4 J0 n5 V0 A6 U4 n: t requestVariant[0].vt = VT_BSTR;+ G2 j. r* s# z! R6 S
requestVariant[0].bstrVal = itemStr;1 A6 i- c: H8 J0 F, U9 v K, b
) u) L( Z: |, g% d" H0 [ topicStr = SysAllocString((WCHAR *) L"system");0 g6 X. G1 A# @+ `2 \0 |2 U9 e
VariantInit(&requestVariant[1]); ; ~# X1 w( W0 x) }9 w/ I$ T6 H0 z
requestVariant[1].vt = VT_BSTR; 1 I. @9 U- A& t( o1 L2 Q( H2 K requestVariant[1].bstrVal = topicStr; 2 O s' l5 k" B9 I: d9 Z" `: ^ / j/ H0 g+ X1 T F, w$ W, o// Set the DISPPARAMS structure that holds the variant.) w5 l8 A# k3 p' }
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dp2.rgvarg = requestVariant; - }5 z# T4 b! G# ` dp2.cArgs = 2;& w" Y; |3 x9 |0 S" i& {2 g
dp2.rgdispidNamedArgs = NULL;, D2 u1 T7 j7 W. }8 E4 ]& i) g
dp2.cNamedArgs = 0;7 a+ w' f& P1 ]; |' Q: c# C5 @