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: : r/ R% c8 l8 o1 P. O- q. ` HName = (WCHAR *) L"Poke"; 8 k8 [, e6 w" s3 X ; C4 N4 y* W: y& \+ A6 \ hr = m_pDisp->GetIDsOfNames ($ Z: M- U2 d* x9 w$ K/ G0 K
IID_NULL, // reserved. v. j6 o$ n6 T! J+ c+ ^
&Name, // Array of names to get IDs for 9 {/ y: w! j$ C" y% I( G! F 1, // # of names in the array/ Y6 \2 h- F9 H% r9 ?/ [
LOCALE_SYSTEM_DEFAULT, // System locale3 d; w/ v. C: r+ t
&pokeID); // Array of IDs to fill on output$ e( u/ @8 v. P& H4 t: M( ?( f
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if (hr) ( ~+ l' y- [ b% p, h9 P2 |( Y: T, f {3 ]9 L: }. @& X0 ~8 h# o. e8 k/ J$ Q
MessageBox ("Get Poke Unsuccessful");; |( j( B: v$ q( ^; Q
return; 1 q# `$ Q9 j! u( E/ X9 a+ n } ) }# L' E, Y" ~; y* M, Z' ^/ X+ ^% g3 }1 H+ o( u
/**************************传递数据给extend**************************************/ 5 }" J7 C8 s6 W! y7 s+ G" S pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, D" n! ?# i# R( v' q
& p; W- q% ~8 |' }' z# T4 v1 Q valueStr = SysAllocString((WCHAR *) L"1232");- @' r4 w# a5 l1 p( ]
VariantInit(&pokeVariant[0]); g$ v8 M) d# a! P& ]% m" u4 G1 p: ] pokeVariant[0].vt = VT_BSTR; 6 S) W, U" Q3 {* L pokeVariant[0].bstrVal = valueStr;8 i# ]2 G" I+ ~9 Y
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' L# x6 C6 r7 H5 G) l VariantInit(&pokeVariant[1]); & p! O* n* F* J9 E1 |8 w pokeVariant[1].vt = VT_BSTR; 7 h# w2 H& `5 Y6 a% r* C pokeVariant[1].bstrVal = itemStr; : b# A& |6 g# N 4 t8 T9 r4 U% U e1 |" d, l5 Y topicStr = SysAllocString((WCHAR *) L"system");0 b: J1 x4 l# g0 R9 @7 `( ~
VariantInit(&pokeVariant[2]); % C, `+ J4 u# U" P: r8 r+ E pokeVariant[2].vt = VT_BSTR; # V% x" Q% n N( w$ @ pokeVariant[2].bstrVal = topicStr; % s: i* F! {4 Q1 ]# X% R# } ) x# ~' \, M/ X: K8 P: O// Set the DISPPARAMS structure that holds the variant. * g8 r/ A6 @% _: `/ x* c7 r( o) b9 Y
dp.rgvarg = pokeVariant; " N: j m! d" m dp.cArgs = 3;, c5 {4 d: u/ x" E
dp.rgdispidNamedArgs = NULL; 2 e, N7 C$ _7 p2 W8 U) T5 H, R, l dp.cNamedArgs = 0; 1 P# O( ?; B* A% h- G ) O0 B$ Z& t+ D9 S. \# u// Call IDispatch::Invoke() : o5 p T: |! T6 c# x& F6 W# D% X& o E( V9 W0 \; @6 k
hr = m_pDisp->Invoke($ q; C- }: s! V' d/ K) G- ^* @
pokeID, 6 f9 n. I/ ^) u IID_NULL,( y3 `& x B+ K2 k2 g4 c
LOCALE_SYSTEM_DEFAULT,0 S! A, n7 m' a8 Z# j
DISPATCH_METHOD, & c$ u; I2 w3 u( O- J8 y. @ &dp,4 J6 f m% D1 |1 h9 y9 i) M
NULL, 1 H7 t- j0 k0 B5 o5 r% C9 n &ei, 8 G l2 k h% e2 l# ^" O; y &uiErr); ! h: \) Y/ B3 E% q. n% n 6 `, L/ P& B- t# v x9 C( x SysFreeString(topicStr); ( c) R; w. b9 j& u& t. [ SysFreeString(itemStr);, {$ f8 F& _, q. B
SysFreeString(valueStr);0 {2 t w# j9 O% L
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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??? - Y( M! j. B8 q# C, ]- Q. q$ j' 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????. N4 ]1 V) ~# e i# L
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4 |( }( ?2 ] a. Q8 k2.这是request的程序 ! C: a# e; {( M L. V// Request a value from Extend% h) J" q; K& E" p. @
// , _. A" A3 |3 V( q+ k9 e( c) E& a2 N+ r// Initialize the variant that will hold the BSTR. Set the variant's3 A6 ^1 X3 n$ c0 q2 L
// type flag to indicate the fact that this variant holds a BSTR. Place the& ?1 x2 O9 C2 l5 l: c5 T
// BSTR into the variant structure.( X1 F9 |, P; M$ `- p
( O: f T7 r& d% C& k3 @1 I requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);5 M0 i8 N# |. K5 B" p9 u
" r2 n: b9 e& @" i2 o% S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " z/ m/ C$ a9 g5 ` VariantInit(&requestVariant[0]); Q: x) t- [1 z requestVariant[0].vt = VT_BSTR; " [; y8 A2 ~# e: v* J( u5 j9 ? requestVariant[0].bstrVal = itemStr; 9 B3 q' j# E$ j1 m1 \* [' S# u% `/ G" v( ?" o, z
topicStr = SysAllocString((WCHAR *) L"system"); 8 t5 B* k; r5 q1 k VariantInit(&requestVariant[1]); % H8 c/ }! i, h i s9 s. E) \
requestVariant[1].vt = VT_BSTR;7 X. g; B- C7 A9 T; {
requestVariant[1].bstrVal = topicStr;" @! v! ^9 X- W* q. A2 O1 g c6 s
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// Set the DISPPARAMS structure that holds the variant.* ~2 h" s! y e
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dp2.rgvarg = requestVariant;7 M1 e2 M5 b* B( p/ ~
dp2.cArgs = 2;3 u) a9 o0 D3 J7 ^' V3 q
dp2.rgdispidNamedArgs = NULL;' u7 b3 w, c& a7 i5 b
dp2.cNamedArgs = 0;) G+ I j: S' L, q% W! Q
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var.vt = VT_EMPTY;7 p+ D5 }6 ~# c3 T) _
" i+ {, }% m1 \/ r// Call IDispatch::Invoke()' \! L+ _$ h# @1 T% N i# s7 B
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hr = m_pDisp->Invoke( + X F5 D3 |. q0 s: u' `& c+ M requestID, ! Z# X0 }) h* D. A, V& e* M IID_NULL, $ |9 b: o U+ Q$ \: q, a LOCALE_SYSTEM_DEFAULT,. K# W$ G+ ?" }3 N7 x- b
DISPATCH_METHOD, , p* X5 W# t+ g! Y &dp2, u' O% m. G- X9 u9 F+ T &var, , |! l8 E, J+ ]% I &ei,. }- Z2 |% A2 ^% W
&uiErr); & k# @5 |: \1 p1 s# \+ A! R/ G9 K- M! [$ u4 Q* I$ s0 C
SysFreeString(topicStr); $ b2 z, j4 h) R; V6 e2 T: S& _! Z SysFreeString(itemStr); ' s3 {% e7 ~$ d" q1 V7 N2 u请问该程序是获得extend里面的哪个值?: A6 J% P6 b+ ]( Z! j6 _
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????