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: % o* ]/ k% r( C* h( z6 H3 QName = (WCHAR *) L"Poke"; 8 w7 `/ O3 b$ H# X+ E6 [+ g7 |. l ( k/ L8 M9 N2 {0 C
hr = m_pDisp->GetIDsOfNames ($ K: x8 t/ @0 l( g
IID_NULL, // reserved8 ? r# Q) x3 ?, U
&Name, // Array of names to get IDs for 0 m& \, O5 B+ t2 @' r. g/ Z' q2 I 1, // # of names in the array " M. Z$ j2 `4 ]- m) A6 G- ? LOCALE_SYSTEM_DEFAULT, // System locale 3 |( J7 D: X# s& d1 s &pokeID); // Array of IDs to fill on output + W6 S/ h2 {; y1 Y7 F* w) f& W , D7 r% ~8 T, w9 {3 n if (hr)2 L0 X9 U7 M5 j& A r3 J
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MessageBox ("Get Poke Unsuccessful"); 1 f; v& ~1 C M) ~ return;: Z1 R, N2 ^1 D. e% i. W; J
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/**************************传递数据给extend**************************************/2 U, h; D6 H! I4 c
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);! n) Q! c. p: ~' s- V8 l
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valueStr = SysAllocString((WCHAR *) L"1232"); " e: L1 X( G1 B VariantInit(&pokeVariant[0]); 1 C/ d7 \1 [. c5 V: p
pokeVariant[0].vt = VT_BSTR; / U1 C0 F# K* c& ~ pokeVariant[0].bstrVal = valueStr;. f) ?( M) n2 K
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* E1 l! y7 f! \* l% y' d
VariantInit(&pokeVariant[1]); * C* C) @3 V; v8 R pokeVariant[1].vt = VT_BSTR; ) Q* e+ w4 L6 Z pokeVariant[1].bstrVal = itemStr; ! ?: b; `6 f% Q, D" Y5 H / B9 Z C5 A F( t' G) c% S topicStr = SysAllocString((WCHAR *) L"system"); / ?$ H1 P" {. }/ l0 b VariantInit(&pokeVariant[2]); * z# C( t' z7 l( U: ~0 {
pokeVariant[2].vt = VT_BSTR; 4 p1 d: l6 {5 v pokeVariant[2].bstrVal = topicStr; 2 V% w! `; F' L1 ]$ L# M 5 t' p/ A9 \$ f; r// Set the DISPPARAMS structure that holds the variant. $ y- f/ ?- q- i7 V8 N( h: y: k' I9 U7 O, \' W& X. N% G
dp.rgvarg = pokeVariant; 1 L: l5 \- e, \, U4 V dp.cArgs = 3; 0 J% R/ I) c4 U* } dp.rgdispidNamedArgs = NULL; + O q K5 ~9 e5 d dp.cNamedArgs = 0; # |/ E* L$ L/ w/ x9 N) a7 x, b & _: \2 d3 a5 k+ J$ s3 |& L. U// Call IDispatch::Invoke(), {/ q! l$ A1 A! P9 t& `
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hr = m_pDisp->Invoke(0 y6 G* B0 o y8 i: B6 Y! k3 Z
pokeID, 5 l: Z$ L0 n+ v% f( Y IID_NULL,. B' s8 [3 t2 N! X( G
LOCALE_SYSTEM_DEFAULT, , Z3 s1 |7 A5 T$ v DISPATCH_METHOD,, U. w" k0 {! }- H- L, j
&dp, ; o2 D9 M3 T6 }$ O9 } NULL, 9 A# L/ |# [& ]' P+ }+ r Z- \/ \ &ei,! m" M. w. B' l, J2 j8 ^- r! u6 Q
&uiErr);) H) Q' D1 F/ `% N6 L! \# ^' R2 {
4 r- h% m: B& v: a! J0 S0 ]! a SysFreeString(topicStr); : b5 e1 G+ n( s: N' P SysFreeString(itemStr); & ]- G9 Z, Q$ }' @" d9 n; R& Y SysFreeString(valueStr); ) o+ U" U1 T7 k% Y! o1 L( a, A' A5 m9 r$ {& c: Q1 }
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??? . q2 C) W5 e+ S* g6 _1 [0 \. J I2 E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 m1 m9 Q$ E% R- a3 G0 Z% t
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5 B3 x, O! [9 y- d$ ]$ G2.这是request的程序 0 O8 ]* m5 M) f; c// Request a value from Extend I k5 {6 _/ G
//6 M3 C9 _$ Y5 B3 I
// Initialize the variant that will hold the BSTR. Set the variant's ' e) G! x1 ]9 f// type flag to indicate the fact that this variant holds a BSTR. Place the - o6 B; C8 Z( y/ r1 e- K- V/ ]// BSTR into the variant structure.- B& o# G! Z3 H" m8 ~
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);8 d9 k1 s' r0 \3 W7 ^ G) |% N T5 i, ~
# E4 Y& s2 g# ~8 R itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 ^9 k6 `8 Q* C. U4 x3 L A VariantInit(&requestVariant[0]); 7 j8 }, w0 { B( _! _ requestVariant[0].vt = VT_BSTR; 6 ^' @ T; _' e requestVariant[0].bstrVal = itemStr; 8 C/ H7 {4 D4 y* L3 f& r! S; K& S* X) N/ }
topicStr = SysAllocString((WCHAR *) L"system");6 b, h) p$ c5 @" M" Y
VariantInit(&requestVariant[1]); & W# E0 [7 v: h+ J% g; P' S requestVariant[1].vt = VT_BSTR; " {3 Z, w! O1 A! l: K8 } requestVariant[1].bstrVal = topicStr; + ^( m' Z W. Q& o 3 Z+ f; f3 I. R" A/ X* J& x// Set the DISPPARAMS structure that holds the variant.0 J( R, W# o3 ?/ Z$ q
/ _1 |6 `, E* C6 M dp2.rgvarg = requestVariant;" R2 V M0 t) g x8 x+ G4 p
dp2.cArgs = 2;0 l% G: h6 k! V! J4 e
dp2.rgdispidNamedArgs = NULL;4 X! c9 `, G, y4 E5 v, d
dp2.cNamedArgs = 0; X2 F6 F+ C, O" `3 Q( I5 A) N' ^% q) o6 [8 B5 `5 ~
var.vt = VT_EMPTY;% G4 o! m. \9 a/ G& G
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// Call IDispatch::Invoke() , g# s: H6 r2 K! v M9 O+ ^$ y 7 ~( N1 ?/ H1 \- u! @+ [9 ] hr = m_pDisp->Invoke( % t, A3 o B' P5 ?- R requestID,- D3 C) D* J) Q
IID_NULL,9 Z2 a4 B7 @- Q% {9 v7 w
LOCALE_SYSTEM_DEFAULT,& \+ p' u( R7 b$ T1 ?. r
DISPATCH_METHOD,8 a1 z! o4 G8 m% Q h% ]: S
&dp2, 4 h, V/ Y3 ^' G3 J& @4 ^3 L &var, $ [' J B# s0 }0 G; d' s& N: ]$ x* T &ei, - v6 W) k% }# A% F, p: R% `3 ? &uiErr);+ f y, P5 M( a& R