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: : P6 @8 w' ^$ w1 ~1 v# KName = (WCHAR *) L"Poke"; ; M% E3 m1 v I% ^* I. @/ w8 r# l 1 A" L0 T# A4 V: t) F hr = m_pDisp->GetIDsOfNames (9 _' r! X0 e! Y! [6 @: _$ x( n
IID_NULL, // reserved) U) i; ~; {" o+ F. {; _& \6 _
&Name, // Array of names to get IDs for8 P6 e* V+ @8 b9 c' {: Y' Z
1, // # of names in the array 6 _" z6 O* J& { P* X3 b LOCALE_SYSTEM_DEFAULT, // System locale7 h4 q- Y2 H4 H! Q0 W1 q4 T
&pokeID); // Array of IDs to fill on output* T2 S5 A/ O$ d1 w" A9 J3 u J
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if (hr)/ \" h/ L9 k$ G2 ^. H4 D
{ 6 p3 y$ [* L* d- `' X) F! | MessageBox ("Get Poke Unsuccessful"); . |4 i3 ~1 q; ~: I return;2 p8 k6 W) V/ Q% W& v8 J
} / [. E! C. ]( P7 y/ ], M9 l# q6 ]2 j3 y+ i5 Y2 j
/**************************传递数据给extend**************************************/0 g0 f v+ ^& N Q- T
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 5 W* D! j5 M3 J ' u$ p# k$ F" c/ Z, L' ?( i: T
valueStr = SysAllocString((WCHAR *) L"1232");) X5 u8 g+ K) p( U0 C
VariantInit(&pokeVariant[0]); " m K0 V! C. `6 ]
pokeVariant[0].vt = VT_BSTR; 9 J" ?, f6 ~) r% g/ j pokeVariant[0].bstrVal = valueStr; + f1 w/ \3 V7 Z3 z3 _1 x : R( ^$ E1 Y% I* ]! W itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, Q4 L& p4 p: V
VariantInit(&pokeVariant[1]); ) Z/ B0 `+ x# R$ S5 A7 a pokeVariant[1].vt = VT_BSTR; : j- ?, q. S5 z5 p& ]: Z pokeVariant[1].bstrVal = itemStr;2 x: O7 D7 Z: i( l* a7 v+ @2 U
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topicStr = SysAllocString((WCHAR *) L"system"); 6 D# T5 C" Q* Y5 P" B- g1 i. `. Y- m VariantInit(&pokeVariant[2]); * R$ `/ U9 g- A* q0 S+ Z
pokeVariant[2].vt = VT_BSTR; % ~: R6 x! b5 T3 n pokeVariant[2].bstrVal = topicStr;3 O$ X5 ]1 w# N
! f# l8 n0 Y' M4 B// Set the DISPPARAMS structure that holds the variant. ' ^$ h5 y$ ~* T) q' s' p& l& b, c+ o5 U# ?% g
dp.rgvarg = pokeVariant; ) z7 W5 Z0 d8 j1 r( y, R* Z dp.cArgs = 3;, S1 v) R9 ~# q
dp.rgdispidNamedArgs = NULL;- T2 P: _9 ~3 a8 G# G' b e
dp.cNamedArgs = 0;3 j" V! `0 y. @, l% j6 `3 X
$ ^5 Q! d5 j. K// Call IDispatch::Invoke() ( e8 k- |# I: J3 l/ K; S+ }( R3 ` G0 e1 O$ W/ @8 b" N* A5 g
hr = m_pDisp->Invoke( ( q6 I/ u6 U4 S2 B; a% o0 e pokeID, ; i9 p5 R' _1 K4 f2 e/ W IID_NULL,$ y3 C/ l4 l2 p# I3 F* v
LOCALE_SYSTEM_DEFAULT, + W% `0 U7 G( a) V5 s DISPATCH_METHOD, 6 l" k- h, r9 r, e7 ~8 Q8 K &dp,& ]% V5 z0 S$ K$ d% |+ N+ y$ H
NULL, + Z4 i" {7 ~" v( x &ei, ' w# E( |- u. j* F e" o# S &uiErr); ; d# x* N6 n! K/ u 2 U! t+ `, ^9 y SysFreeString(topicStr); 7 \. h) a H2 G& B) [. F SysFreeString(itemStr);7 \9 C$ {' l7 b' o
SysFreeString(valueStr);* q2 P+ w( G# ^
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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???. W5 x( v$ |- f
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????; t: F: W4 K9 w: Z! R
9 T: k: [7 v' j( C% Q 3 u1 s+ d M7 L$ Y8 l/ C+ O3 ^0 U2.这是request的程序7 Y- l# I3 ]; j. U. p
// Request a value from Extend 6 {! n8 t% P: ^6 a' x// 0 }) J6 p( T7 A2 M+ _( ]- \3 ~# [// Initialize the variant that will hold the BSTR. Set the variant's7 B; X$ \, `0 w$ q6 P w; v' c% D
// type flag to indicate the fact that this variant holds a BSTR. Place the . F# @% b. M$ D// BSTR into the variant structure.' s% t+ \+ |/ \2 J. t3 Z9 S
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 g% k/ F7 O; o& v. m A/ Y% U
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 `3 h# a. _$ i+ }
VariantInit(&requestVariant[0]); 3 L' e, F4 v6 h, K1 w0 Z$ s/ t6 E
requestVariant[0].vt = VT_BSTR; ( J- z' T; m; V6 A# b9 q1 Y requestVariant[0].bstrVal = itemStr; 5 n. H6 x/ k: q5 z s4 r+ r: q- n- H 0 j+ I4 t. ^) i8 O3 x% x topicStr = SysAllocString((WCHAR *) L"system");5 t' U$ S7 g: K& X6 ]3 Z% Y
VariantInit(&requestVariant[1]); ) e# j" j8 J2 C4 \/ j# g
requestVariant[1].vt = VT_BSTR;/ n3 }0 X- o8 y a9 J; r
requestVariant[1].bstrVal = topicStr; # E! r/ |! G4 l1 g 3 {8 j4 e' ~% }/ L& k8 D: \// Set the DISPPARAMS structure that holds the variant.; B+ I$ J! V+ c/ K/ e
3 r! L- q) t& b% d! q6 ` dp2.rgvarg = requestVariant;+ u4 ^+ d& T* S- g9 D; u
dp2.cArgs = 2;0 ~2 a& f6 g& L* f# h
dp2.rgdispidNamedArgs = NULL; / T' d4 Y6 b- d1 o, k dp2.cNamedArgs = 0;9 g$ h8 h* S) f' A; s' j3 u8 _
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var.vt = VT_EMPTY; 5 X: p* r0 T) r4 W- q' `2 k4 H6 s! h, ~5 S* [6 ^
// Call IDispatch::Invoke() - O1 V: m/ \" h! s0 O, w0 D0 Z/ H9 w! B% a2 u
hr = m_pDisp->Invoke( 2 b# z, z+ f. {% C$ D2 X/ Q requestID,( D/ C u! j* m/ [9 z' m
IID_NULL,% z1 `; G' `$ N% h# E
LOCALE_SYSTEM_DEFAULT, ! `. x8 M, f) i DISPATCH_METHOD,: J g* Q3 X! U- O" s
&dp2, / }$ j$ ]9 w& a3 O( ^ &var,7 c7 J) R0 N( O; f1 o$ B3 t
&ei, V; X6 T- N$ F# K& Y9 { &uiErr);2 [5 ^" h) Y" }% o9 k5 d; t: u) p