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:. [/ M) [/ ^/ a) R+ L
Name = (WCHAR *) L"Poke"; * y6 E. X6 O3 w. } K, v" W, {3 T0 X8 o# {$ k5 m
hr = m_pDisp->GetIDsOfNames ($ u" H. p' b! V2 r' l4 l; I
IID_NULL, // reserved% ]# r% _* `" p4 U7 M$ t$ v
&Name, // Array of names to get IDs for( z4 g. w# }5 [& a
1, // # of names in the array* V: M+ S# A* J6 G' B
LOCALE_SYSTEM_DEFAULT, // System locale8 K7 ^! y! f, i' Y/ |. k1 c- b0 G% }
&pokeID); // Array of IDs to fill on output 2 c/ s q% e8 f# E3 r. [ ) B7 h( E$ j( R6 j if (hr) " B$ e% k( s& C" Z& C. ?+ z { + \4 x* I5 l% P9 Q5 F& |4 g MessageBox ("Get Poke Unsuccessful"); 0 E3 x) ?7 e& ?7 }* ~5 w return;$ V: J6 i3 |) ?- [1 `
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/**************************传递数据给extend**************************************/ & H4 c( w! y' b: {' J& E pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 h$ [1 ~( w3 J" S" K. ] 1 J4 ^ o" @; a+ R4 w0 z
valueStr = SysAllocString((WCHAR *) L"1232"); ' s+ R) {& t% n. a# M" l! C: k VariantInit(&pokeVariant[0]); 3 z4 c1 }0 d& U
pokeVariant[0].vt = VT_BSTR;3 C1 n/ l3 y" T3 i& |# v
pokeVariant[0].bstrVal = valueStr; o6 F% y3 n! o- X
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. A8 b- H! V/ l8 ~6 M7 L( x8 n
VariantInit(&pokeVariant[1]); ! T& f8 u( u, x4 |( M pokeVariant[1].vt = VT_BSTR; 0 Z2 p6 Q5 m* w% |' C6 D pokeVariant[1].bstrVal = itemStr; ; S* g2 P$ L$ d9 t) a* L7 n& M) Q' C$ E
topicStr = SysAllocString((WCHAR *) L"system"); 0 a& O, u) Z$ Q& Y VariantInit(&pokeVariant[2]); 9 V8 N) C# N3 M; G. z1 V* o& _! W- I" [ pokeVariant[2].vt = VT_BSTR; " [% w( v$ L2 G/ v pokeVariant[2].bstrVal = topicStr;1 r/ E6 ]; }: }, _
. B3 N4 w/ ^2 n& S, h" f }. V// Set the DISPPARAMS structure that holds the variant.; S4 i7 d0 _! I! N
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dp.rgvarg = pokeVariant; # U. l; |* e# J# J7 }. I1 J dp.cArgs = 3; ' D2 X" V4 n0 ?& t' [3 C& t dp.rgdispidNamedArgs = NULL;1 c8 B! x8 e/ o2 ]6 L
dp.cNamedArgs = 0; 9 V* r3 G" t6 i( l" Y: c4 {1 r : }. ^% W) I3 q// Call IDispatch::Invoke() 6 p' I. Z( V! A; r0 M% d & d0 w [% D% y/ C hr = m_pDisp->Invoke( % J0 r0 }) P: H& Q pokeID, S9 z. Q4 }1 ~& S4 E. l V
IID_NULL,0 o) {# T! F- T5 [% \$ }8 R
LOCALE_SYSTEM_DEFAULT,+ Z2 Q1 ~* d j I$ j
DISPATCH_METHOD,5 C% x* J" }( l: [3 B4 @
&dp,$ u. w/ z/ ?6 a# |
NULL,! m) ?$ ^, ^8 t7 n6 Z
&ei, $ z6 _* T# V+ `: `/ Z &uiErr); # M3 h3 W t9 U# u, \4 H, E" l' Y# A' V& X- u* }5 @
SysFreeString(topicStr); # G9 j& J: Q, B4 b: a SysFreeString(itemStr); 6 @; I" H% x4 Z: X SysFreeString(valueStr);% E9 V3 T& s, d7 G1 o! C, [
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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???9 I" E }3 z! n 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????, J4 e* [. G( _) V+ M; i
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; G5 P u/ l1 @$ W: d" U2.这是request的程序. ~8 G" f! ?2 T3 X1 H7 ~8 S0 y
// Request a value from Extend % H; z# K# e3 t" Q- B' ]// : ]9 [% w7 P! {' g. C3 s! S& } D// Initialize the variant that will hold the BSTR. Set the variant's # Y9 f6 l1 _4 H' F, t7 R// type flag to indicate the fact that this variant holds a BSTR. Place the( N! o9 n7 h! |! b
// BSTR into the variant structure.9 ]2 r( Z3 Z- }8 `) y+ D- z Q
3 a. Q2 a! a; i7 A requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 ~) Q+ a3 Z h . t5 x# _0 ~/ s: S3 x. Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ s, P- \8 Q! e$ v9 A. N" c
VariantInit(&requestVariant[0]); 2 t+ J& F8 u( D" l' J7 |# d" M requestVariant[0].vt = VT_BSTR; , |+ R9 d$ }0 y, v requestVariant[0].bstrVal = itemStr;% v& a* e2 f# t6 f# G
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topicStr = SysAllocString((WCHAR *) L"system");8 Z( n9 N- u4 l9 Y' e9 p! x2 t, B+ R
VariantInit(&requestVariant[1]); & z6 L, D2 s0 J) H6 r requestVariant[1].vt = VT_BSTR;, e, g8 v6 E- @3 K$ Q5 f$ Q: u* J
requestVariant[1].bstrVal = topicStr; & V1 `" L: E# W- L3 m! @! m7 V( w1 z1 C9 F. Q1 t$ [+ R
// Set the DISPPARAMS structure that holds the variant. 4 Q- W8 x4 l9 G5 A6 s % ^% G# k2 ?& E& O5 u! e: p! G6 p( | dp2.rgvarg = requestVariant;0 G" y- v4 f0 x5 p
dp2.cArgs = 2;( P2 u) R% ]/ m1 w, t) T2 A* o
dp2.rgdispidNamedArgs = NULL;% X1 [4 \) M; i( h
dp2.cNamedArgs = 0; i2 J7 W& s( ^8 `) \) c) d7 q$ u5 I& {( n ~, L' U1 L9 R
var.vt = VT_EMPTY;/ y' I% q. Q% T
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// Call IDispatch::Invoke()( n9 [. {) M" x; K! K! M' N
: o3 t, y4 ]: r hr = m_pDisp->Invoke(* Z( t% |" f/ X' T) z$ T( e4 Q$ b
requestID,5 L# c3 S$ s- B3 K( E& b
IID_NULL,, y1 j' D# U3 b$ ^/ t V
LOCALE_SYSTEM_DEFAULT, 1 T) E8 Q1 c, a. b% o/ E z DISPATCH_METHOD,- i+ m/ G% s% L# f8 R
&dp2,2 @+ e+ s k( n& J* C# a
&var, 9 s- P6 b* z8 j &ei,4 t( F* _ M2 J7 S c
&uiErr);; {) X- @! d+ d+ c9 e* @
5 R; n0 o5 V1 M2 W SysFreeString(topicStr);9 ^8 v5 c2 h2 L' q5 p
SysFreeString(itemStr);# I6 W& k! G, ^9 Z, m4 }3 i- j
请问该程序是获得extend里面的哪个值? & u2 w# u: W+ [ ~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????