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:4 o5 S; P- M; r% v
Name = (WCHAR *) L"Poke";- V% i: _3 k* n
8 A6 v% a% e8 K hr = m_pDisp->GetIDsOfNames (5 R! y* ~6 o+ I+ I; d& p; h4 K5 R
IID_NULL, // reserved , X5 {2 p% b# i- U- V- X &Name, // Array of names to get IDs for ( T6 Z- t' O3 E# v3 u* i9 H 1, // # of names in the array* a [4 n u1 {7 }
LOCALE_SYSTEM_DEFAULT, // System locale ( g: k0 K5 H3 D e$ Q/ { &pokeID); // Array of IDs to fill on output & _- K8 D- l/ z/ u6 p6 Z- A 2 x7 |4 h( z! W0 E3 _. S% j6 T
if (hr) ; Y# N+ L1 b8 { {! A- j, ~( B; n9 ~- ?! C, r0 T
MessageBox ("Get Poke Unsuccessful"); 9 N! M; n9 A( M' y4 u8 [' i3 Y" ^ return; / `3 b# |# _7 v8 v& y } / J# A2 D9 I! N4 ?" R" W2 r1 g5 d$ G7 U) D. t: B! C% q
/**************************传递数据给extend**************************************/8 Z' _3 G8 A7 G7 J% l5 x
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 1 I6 `( C+ r* ^, v6 n+ y0 F' o + S# ]% m3 ]- {- a
valueStr = SysAllocString((WCHAR *) L"1232"); # [0 Y% D9 d" [' z2 r VariantInit(&pokeVariant[0]); ) \6 O& J k, ?: ^
pokeVariant[0].vt = VT_BSTR;$ h$ ~/ T$ C p- f/ m
pokeVariant[0].bstrVal = valueStr; 0 o o2 v5 h2 ` 5 p- R( \8 C: M% }5 U$ Z% o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # \. C) D2 x) d+ g, {* b! _ VariantInit(&pokeVariant[1]); 6 m2 v; F2 @: v' |7 V9 ]1 ?& q1 [, T
pokeVariant[1].vt = VT_BSTR;2 m! |+ P( e' M4 h7 b F% q
pokeVariant[1].bstrVal = itemStr;1 y& ^. [1 q9 K3 y- E
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topicStr = SysAllocString((WCHAR *) L"system"); 7 f7 b9 e1 `( o* E7 w A" U5 i VariantInit(&pokeVariant[2]); ( i6 P! A# p. \ pokeVariant[2].vt = VT_BSTR; + p# n; j) m/ W. S1 V9 y pokeVariant[2].bstrVal = topicStr;2 x' U1 w* O- }" z
$ U; R) O# ^; V: ?8 x' a* V
// Set the DISPPARAMS structure that holds the variant. ) _' X3 w7 x% ^5 \, S ! D& G5 @/ K6 {/ S+ I6 a dp.rgvarg = pokeVariant;8 D v2 o6 _, w: O5 n% R. v
dp.cArgs = 3; ) P+ q# C5 {. A dp.rgdispidNamedArgs = NULL; # Q7 {+ {" p2 C) `; ` dp.cNamedArgs = 0; t" z/ E1 l# g: d
* L2 y+ o3 K! V) v* @
// Call IDispatch::Invoke() ! ? | s+ u7 L) W' d: T# C& q6 s' x: X. g+ F8 W
hr = m_pDisp->Invoke( * [9 \7 q/ l" u# N& m( I9 q pokeID,: G& a V# l* H2 c' r( P" ?) D' m
IID_NULL, 9 m! @! Y7 a% @ LOCALE_SYSTEM_DEFAULT,. G& ~3 E, n: `, _
DISPATCH_METHOD,% {' k2 X1 D4 H: R" [7 m# A$ N
&dp, ( [: Q# b L Q' s6 m1 T NULL,( Q; K& W' M) G
&ei, 2 \) q7 n8 e, _: Y* c &uiErr); , B* w8 }+ a- O% K - u1 s0 u, A5 U SysFreeString(topicStr);% \/ k' x$ r- r: }
SysFreeString(itemStr);: }# h& {0 w+ t* r; d
SysFreeString(valueStr); 0 E+ Y9 H M1 N' X$ \7 P; Z6 h6 N& Y- K5 L# K 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???1 C1 X0 z) H) V+ I
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????; S: W* `4 w' M) y% R. E; Q# S
. G8 k: F- J$ T- t) G _5 Z& u : ^. E( c) P& y) x9 r! o2.这是request的程序 - X' E$ l5 q- r" [, {! H// Request a value from Extend 4 U! t( F" s8 _, i// {$ B, v5 T$ X9 b7 I( E3 }( u// Initialize the variant that will hold the BSTR. Set the variant's! z" q. d3 ?$ |7 c }0 c* u
// type flag to indicate the fact that this variant holds a BSTR. Place the $ d. Y0 l# E+ F% Z// BSTR into the variant structure.' d, b! A1 s) n/ S4 V
$ V2 M8 Z# V9 k( a requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); " ?1 `9 e$ a( |: R# R/ I8 f 0 T0 f3 S) g4 `" v9 S6 d7 P itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 W, K2 b7 q( e% u7 ] ~$ D
VariantInit(&requestVariant[0]); ! Y+ ^/ x3 g n2 V) F( N requestVariant[0].vt = VT_BSTR; 2 R l9 r* q8 s, F* Q4 Q requestVariant[0].bstrVal = itemStr; 5 C9 V& m/ ?" Q# [7 u( ^9 [; n 3 v1 J5 I: _7 }( h' X topicStr = SysAllocString((WCHAR *) L"system"); ' v5 B6 H k! N0 U: l; M6 X# L b VariantInit(&requestVariant[1]); ) K! F, ?5 r/ [) a requestVariant[1].vt = VT_BSTR; 4 z* }! F U7 E: L requestVariant[1].bstrVal = topicStr; 1 {3 W, m* [+ [6 _ / j$ c& y, S: z9 j$ J// Set the DISPPARAMS structure that holds the variant. 0 B4 ^& v: d/ z/ @. ^' l& A& {2 c) K% s) H
dp2.rgvarg = requestVariant;1 x# d7 W: l& i- L% d
dp2.cArgs = 2;3 T" V9 P6 o3 `
dp2.rgdispidNamedArgs = NULL; 6 F6 E6 q3 s. X dp2.cNamedArgs = 0; " C$ ?$ M+ y# O / A# Z4 y3 y9 u5 L& P var.vt = VT_EMPTY; 4 X, C6 o. [4 O% X+ {% b3 F9 Y2 H3 U! Y8 X1 k' q. `. R: Q
// Call IDispatch::Invoke() 6 z9 \) T6 `/ ?7 U& I) p% ]& l1 \! H3 _% D+ z
hr = m_pDisp->Invoke(/ ~ y4 r* B4 Y* @. y
requestID,+ X4 ^, f/ X$ \
IID_NULL,. h8 Y; D; W8 T$ E% S. u# ]
LOCALE_SYSTEM_DEFAULT,3 ^" A; u7 |# y
DISPATCH_METHOD,& K' i0 m9 ?" x4 c
&dp2, T3 C$ z1 i. U" A$ ]- @) J3 J1 l+ B
&var, 9 O6 A* v- X' J9 p( i: Y( c% g5 C$ B &ei, $ k7 F& d% ~: j &uiErr);1 _5 B, n8 \! c( I: U1 A. M" {
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SysFreeString(topicStr);+ \' Z3 I( u+ \- F
SysFreeString(itemStr); 4 V/ F# O/ Y* e7 x& }( y请问该程序是获得extend里面的哪个值? . k: f# F L I5 N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????