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: # H+ }# z# g, }7 M) b' MName = (WCHAR *) L"Poke"; L# U4 k2 Z8 O( S
: K, i/ E- J S0 d6 i T hr = m_pDisp->GetIDsOfNames ( . j" B7 l0 }9 q( f/ g% p" y6 p7 V IID_NULL, // reserved& F& ]2 @. D. P' t; K
&Name, // Array of names to get IDs for 8 p) w) G" W" ?/ v$ G 1, // # of names in the array( D1 s# K3 `$ q
LOCALE_SYSTEM_DEFAULT, // System locale ) A4 X) M, p7 N$ E( n/ V7 n &pokeID); // Array of IDs to fill on output 6 E; }! D7 C6 v) i4 d' b 3 u) R! h* K- Y0 L- g
if (hr) - W* s+ {* z+ M R7 X0 c8 R" [( ~ {% u& R4 W/ U M
MessageBox ("Get Poke Unsuccessful");8 e) z9 e$ U; I& x2 }5 ~
return;/ y! O* W" l+ i% y( n& _
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/**************************传递数据给extend**************************************/* h3 [+ @: D" t# W a0 `* b. s- m
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ; b) l: D7 I6 ~2 @2 x% L ( F+ j( A* W9 i/ D* x2 c1 R) K& }/ b
valueStr = SysAllocString((WCHAR *) L"1232");% S5 t4 B! f5 L5 x* _& v
VariantInit(&pokeVariant[0]); : b( g; V+ i1 O pokeVariant[0].vt = VT_BSTR;( m- M0 D- {5 _: w. ~
pokeVariant[0].bstrVal = valueStr; : l; e, N$ u! z* K % q5 _+ _) Y- z( L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - P9 {4 i j V$ i! t1 J% \2 Z VariantInit(&pokeVariant[1]); 2 G' Z. }# }0 ]/ R8 u: R pokeVariant[1].vt = VT_BSTR; / I9 c& F& x2 ~ pokeVariant[1].bstrVal = itemStr;9 W# f* E3 _7 d/ l
6 A- ~* s0 u9 I9 l topicStr = SysAllocString((WCHAR *) L"system"); 3 z; M: o# I# S VariantInit(&pokeVariant[2]); , I. N+ j' g$ k0 m( Z/ [- q pokeVariant[2].vt = VT_BSTR;3 w' s1 ?5 x6 J- }/ X
pokeVariant[2].bstrVal = topicStr; ( }7 o, m1 J, t6 \# e: Y; l' n5 ^- l
// Set the DISPPARAMS structure that holds the variant. c! Y* _8 C2 e r7 y " y* ~1 L7 T& R' ]5 \ dp.rgvarg = pokeVariant; ( ]* f8 n) `. b Z dp.cArgs = 3;" d" S: @9 h2 h* j
dp.rgdispidNamedArgs = NULL; 4 }, D% |( K2 C! |* u dp.cNamedArgs = 0;! l# D# o6 C# m
2 h' w' ~* ` y. @8 h8 o$ T// Call IDispatch::Invoke() 2 J/ [, N( J f2 ?/ G4 m) X* _' b F5 }; P I! d$ e
hr = m_pDisp->Invoke(( V& O9 Y6 q, o& `$ I9 c" K: j
pokeID, 8 w2 u* f+ u# a IID_NULL, " B& s$ M. M$ {1 `5 ~ LOCALE_SYSTEM_DEFAULT,( {! `2 V7 ~$ G v4 u& U% A
DISPATCH_METHOD, 1 j3 Z' W) N0 v& G4 U &dp,7 x. ~, |" ~1 J% d% W5 x/ @
NULL,, M& X/ C( b u @/ n% U/ N+ p- t& ?
&ei,) q7 |! k* w/ [7 C# m
&uiErr); ! t8 N" [& `' A9 u o3 P 6 U2 q$ t" P. b SysFreeString(topicStr); . R: { g/ L$ w1 l4 W y SysFreeString(itemStr);3 P* z$ H2 k i; { A3 a
SysFreeString(valueStr); ! |3 t$ _, U& [7 M2 J) r" b0 l1 s0 G, Y. j; i* n5 k4 } w
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! {1 K* r# `+ N
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???? / y* o7 X' ]3 U% u, y( p9 @+ g- C# [3 }
1 L/ R' V% ?! o2.这是request的程序 # p' P& a m- C& D) T// Request a value from Extend 9 g+ I g$ Q4 p& t/ A//; Z" d0 H R8 [2 p# o' c) Y7 ]
// Initialize the variant that will hold the BSTR. Set the variant's$ Y) o# o& }4 s
// type flag to indicate the fact that this variant holds a BSTR. Place the( ]/ X# t+ v1 y
// BSTR into the variant structure.) k0 \: o3 _8 |) Q7 k8 W; _, \7 u5 i
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* B) E7 w" S7 h" E& Y
- m: j$ I, e M- [7 a7 w; r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , \1 v2 s% A. X ~7 Z% O VariantInit(&requestVariant[0]); * i" _) h, z4 z0 Y
requestVariant[0].vt = VT_BSTR; 1 V8 M" Q0 K8 b8 @, E" d requestVariant[0].bstrVal = itemStr; ! C: m2 P0 l1 @* I/ W1 d) i' v , ]3 q- ?# O3 t9 H$ Y topicStr = SysAllocString((WCHAR *) L"system");7 x" e9 ~- S! ]( v
VariantInit(&requestVariant[1]); # _ ~8 V* A" K @; u7 o% x' L
requestVariant[1].vt = VT_BSTR;5 V6 J3 h* K B$ S
requestVariant[1].bstrVal = topicStr; 7 ]# c! W+ m- D6 x # h q2 z0 |' y1 `$ B/ Z4 p4 p5 h// Set the DISPPARAMS structure that holds the variant.; C# i9 y5 ~+ U j. O. H" t
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dp2.rgvarg = requestVariant;1 @3 [) p3 g/ U3 q0 f4 c2 }
dp2.cArgs = 2;3 q! c B8 e5 k8 p0 t/ p4 B& }* |
dp2.rgdispidNamedArgs = NULL;! h s2 a( i/ K/ ]
dp2.cNamedArgs = 0;/ ?' ~( V& y' F, T/ }+ ]9 k
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var.vt = VT_EMPTY; 2 l! b! \# u Y8 w) b& R7 E& k# n, \1 n2 a
// Call IDispatch::Invoke()" f( |2 Z @9 @2 L( N* N! T
7 ]! M$ d1 r' k7 Y9 P+ R4 f hr = m_pDisp->Invoke(4 b6 G8 t4 n" r; l0 G4 H; x9 c
requestID, $ y. g8 q1 ^& C; [' h* L IID_NULL, 6 w( O% Z$ [2 v: t LOCALE_SYSTEM_DEFAULT,' W) A8 T* w' [" r2 I }' T
DISPATCH_METHOD, $ i! A' `" k; h+ t& V1 u &dp2,! E/ V& o* g* M' g% g
&var, 4 }0 \# W6 B/ f &ei,: p( G" h2 d# n6 J( y" b
&uiErr);( T2 Z- ~! O* m3 g