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: ' p# I9 X O7 ]2 x6 H2 WName = (WCHAR *) L"Poke";. W% Z9 M# b, r0 D( Y( j9 @6 Z
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hr = m_pDisp->GetIDsOfNames ( 1 m) r+ ]% d0 ~7 F3 U# [ IID_NULL, // reserved , i# Z2 s# z5 O$ ~3 \$ v &Name, // Array of names to get IDs for. O) m' G8 x2 f& c
1, // # of names in the array . _4 F5 V" }5 ~& ?1 V$ f LOCALE_SYSTEM_DEFAULT, // System locale7 y: d8 r/ a9 G% D% e+ i( Y
&pokeID); // Array of IDs to fill on output ) s9 Z J' `4 C& U 9 z+ e! @( ]7 b3 x1 o) L if (hr)% Z2 a- k4 g8 {) n- D9 J$ {; O
{ 0 ^8 C7 V5 K& p u1 F) X; g! i MessageBox ("Get Poke Unsuccessful"); . E" R1 x4 {0 v7 z: Y" Y return;. Y2 [ S) f2 S3 K; v& c' k" }
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/ v/ {( E; _- ?1 P$ P ^/**************************传递数据给extend**************************************/ - n& y0 c0 W! K0 h0 l# { pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ' e0 @1 K- f) o& W: U 0 | Z! h; l* {! v. C, u7 n
valueStr = SysAllocString((WCHAR *) L"1232"); ; n" l9 F% L) u, V! t' T VariantInit(&pokeVariant[0]); + }' P: j/ n$ F7 Z6 e pokeVariant[0].vt = VT_BSTR; ; X4 q" v/ p. k pokeVariant[0].bstrVal = valueStr;& P; T3 Q9 j0 \* z5 N9 r/ n9 p
! H/ `8 n, _0 z* W0 ] itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: W+ _- D2 t: R3 ~
VariantInit(&pokeVariant[1]); - ]) Z% ]0 s8 P+ k' H# a0 l8 q0 S
pokeVariant[1].vt = VT_BSTR; , t$ {3 l% R7 {! P$ e pokeVariant[1].bstrVal = itemStr; ! `) n7 r+ \6 [2 n: K! A& w& y' d# d: S. I G% G+ D5 H( A7 Z
topicStr = SysAllocString((WCHAR *) L"system");5 `2 d, y: C' p# i: }
VariantInit(&pokeVariant[2]); 6 n; ^8 ?; k' c+ c4 A pokeVariant[2].vt = VT_BSTR;) o& K' r6 L% I
pokeVariant[2].bstrVal = topicStr; 3 r# F [" y2 p5 U& L( Y- K 4 }: B: d* j" `9 l$ J4 z// Set the DISPPARAMS structure that holds the variant. ; L$ A0 a+ T1 A6 A! X9 } ( Y( Q, ?( {/ T, {' u7 p dp.rgvarg = pokeVariant; ! l! L; k* q) `5 ~$ U! N dp.cArgs = 3; $ V; |( g( d. B9 Q* x9 p) K% n7 ^$ c dp.rgdispidNamedArgs = NULL; # M! r0 I) C2 `: { dp.cNamedArgs = 0;3 b( K5 n w7 t5 U7 j& d5 \. }# Q
. T G* ?1 f. @1 A& ^) v5 U2 j// Call IDispatch::Invoke()/ F+ p. K- G# I$ \; |/ R G
) I, h/ [0 |3 F$ v$ r hr = m_pDisp->Invoke( 0 L) V# ?3 q [$ O; ?2 d5 B pokeID,4 q$ j5 q. r# N+ J5 x. `
IID_NULL, 2 X1 h+ X6 t- s% h2 J1 _( _$ r- x LOCALE_SYSTEM_DEFAULT, % N9 \3 \6 u- Q/ m$ c" D/ K3 X# Y DISPATCH_METHOD,) T6 o6 u3 ?# _2 T1 z0 n6 q' g
&dp,/ H4 a+ Q. ^' o* [* J* _
NULL,7 m5 h) `) ^+ s) ~% t2 l
&ei, . l8 A3 C `: b; k, e! ?2 L &uiErr);8 Y M6 H G( |2 N4 i% y
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SysFreeString(topicStr); 0 n( E; N0 Z' e SysFreeString(itemStr); + W! e1 j, P, A2 a SysFreeString(valueStr);/ D. r- [- ?2 `
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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??? 0 d& B' M4 x z* R 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????# E& N. j" {6 |- `$ Y M
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2 C8 P& K) n K- _# X' U! Z2.这是request的程序, W) Z2 S: g. Y: l1 `/ K! |
// Request a value from Extend/ Q2 V$ h- f. i* R5 ?
// 1 M/ X) `8 @3 I// Initialize the variant that will hold the BSTR. Set the variant's4 A$ y2 p2 A4 e- h0 U5 D# a" `; f
// type flag to indicate the fact that this variant holds a BSTR. Place the) N7 o0 _, Q% H8 X, L& [
// BSTR into the variant structure.! {" I- J2 E9 U* \4 @ ]- r
6 W/ b- K0 ^, F- Q& r& |6 r requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 r V# }0 m: {8 v) A' @
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 j& \, j* m8 |: c, M VariantInit(&requestVariant[0]); . e9 ~+ A f4 N, _
requestVariant[0].vt = VT_BSTR; 4 Z: d" ^$ X, ^& K7 U requestVariant[0].bstrVal = itemStr;( q0 t+ ^# e* B8 Y, X- K& R
* i x+ i$ O6 A( ]5 ] topicStr = SysAllocString((WCHAR *) L"system"); - N- [# ^- t9 b7 u# e7 }$ a VariantInit(&requestVariant[1]); . P* r$ j7 g! M0 ?' [; T9 q) b requestVariant[1].vt = VT_BSTR; - U% C1 T. v% E1 L requestVariant[1].bstrVal = topicStr;3 h; }( \! B! \; t
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// Set the DISPPARAMS structure that holds the variant. - j, ]% [% ^& S; |* J X: v. L9 Y4 Y+ @# h! _
dp2.rgvarg = requestVariant; $ |' e# @: X0 U, m2 Q) |; k dp2.cArgs = 2; + V9 N( g' A2 K8 r" m, C7 ^: U G, r dp2.rgdispidNamedArgs = NULL;/ N! ^5 @2 }/ W3 O. q
dp2.cNamedArgs = 0; * u! X' V& `4 j( ]7 l+ ` T0 T8 d7 Z$ s0 R
var.vt = VT_EMPTY; 0 Q) s% h8 B, T. a* B ' Y- ^* y7 W4 B0 d3 w// Call IDispatch::Invoke()2 N$ B' N! _' Q# o# K6 {% I1 S
1 d. Y S# B; H0 n" S hr = m_pDisp->Invoke(, Z; C- q$ ^. k+ B, G/ h1 [
requestID,8 ~9 u8 T U& \4 h1 ~2 Z3 r7 y$ f
IID_NULL, * u# U( s, e8 X; ] LOCALE_SYSTEM_DEFAULT, & X0 L1 S1 q! E DISPATCH_METHOD, - n2 R* y- v+ s2 k &dp2, % n& ]7 P$ y$ ? &var, ! ^1 D) W% k8 v$ K &ei, - \6 ]; o2 `$ M" Y+ Q3 ` &uiErr); % e, z e+ g8 E9 s- B5 n4 s0 S$ f4 A. v$ F$ s* V
SysFreeString(topicStr);; j: I9 M h6 D' k9 D3 r
SysFreeString(itemStr); $ n& r# m% c9 I3 T) e( Z9 ?( n% r请问该程序是获得extend里面的哪个值? / u$ I1 z8 p7 u2 ]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????