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:( x ?8 m1 Q9 K) a, s
Name = (WCHAR *) L"Poke"; & }8 Q% Y: ^ ]2 O $ y. I: l7 `9 ?" E1 R hr = m_pDisp->GetIDsOfNames ( % _1 w, [: k( O. O/ L2 X IID_NULL, // reserved. e7 C# c( T1 w- W- T* G' @3 ^
&Name, // Array of names to get IDs for' D. I, Q: y& ~/ @' h1 z
1, // # of names in the array6 Z) |: j$ f( N" y/ H0 N5 t' q
LOCALE_SYSTEM_DEFAULT, // System locale . F0 L8 Q' m, M7 f- J &pokeID); // Array of IDs to fill on output9 F( ~$ B/ ?- m9 b8 D
5 E% n& z- b+ A6 {6 v( m if (hr) 5 ]* e* k3 ], L { , |! x+ J# p8 M5 I- ^/ Z5 l MessageBox ("Get Poke Unsuccessful");& u% W d: Z2 c: q/ L
return;3 w$ e) o+ R3 p: s0 D3 ? o4 i3 z
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) s2 n- h( ^% a% Z& u/**************************传递数据给extend**************************************/ % O( X! N% Q3 k# }8 ?/ w+ S pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 1 q$ q' U3 h: y8 l. B: y ( @% v0 C; C' d2 h1 Q5 w0 b0 `
valueStr = SysAllocString((WCHAR *) L"1232");9 _/ h5 h6 |) S& V4 q1 S6 a, \
VariantInit(&pokeVariant[0]); . T3 @ [2 Q: p: f: A8 g& b$ g pokeVariant[0].vt = VT_BSTR; ?# ~8 d0 u2 Q+ T D& a3 q$ J pokeVariant[0].bstrVal = valueStr; 1 s4 u1 P+ r$ ]2 F, e' Z; S5 r1 ~
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 V! F* X1 I. A6 i2 j# j9 k- q VariantInit(&pokeVariant[1]); 9 w7 s9 W# g, U2 X# }
pokeVariant[1].vt = VT_BSTR; Z) v. j+ K) |+ r3 \+ H! R4 Z pokeVariant[1].bstrVal = itemStr; 2 H7 Y# @* e) D# C8 o6 _, F ' h+ F/ J4 m0 Q3 R) [ topicStr = SysAllocString((WCHAR *) L"system"); ' ^/ K" a; I9 U' {+ {) h VariantInit(&pokeVariant[2]); 0 P; w5 @7 ^: {5 q; I pokeVariant[2].vt = VT_BSTR; , W, G. |8 C, Z7 z pokeVariant[2].bstrVal = topicStr; # C$ H, m$ Y7 Q6 P& ~0 F: }5 i7 y ) x+ S3 \3 Z/ k9 Y6 l& A// Set the DISPPARAMS structure that holds the variant.; P* A& Q; Y5 Y7 J2 g: A- V0 v' B
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dp.rgvarg = pokeVariant; / N! q5 K$ B/ O; X dp.cArgs = 3; , X) P$ F, Z7 W8 v* h dp.rgdispidNamedArgs = NULL; $ p. `' L) e+ g% y! W/ @3 Y! T dp.cNamedArgs = 0; ! L, z% h0 K% H+ i0 u2 ?. t" }) `& B: x7 a5 |1 {) `
// Call IDispatch::Invoke() : y8 `/ Z/ M! f9 [, M& [ & _7 o- F1 W# C' J5 ?: I5 e hr = m_pDisp->Invoke(7 w% G9 X7 u2 p/ w. ?3 E
pokeID, ; x, T3 W0 g+ a2 J. f# W IID_NULL,0 |( ]! n9 `2 G6 T! h" n* Q& D N, d
LOCALE_SYSTEM_DEFAULT,+ d2 p4 t$ q0 Q. [* L7 ^) [4 f8 b8 o& d
DISPATCH_METHOD,( e/ k( }& S8 k) l8 k7 T
&dp, 6 C' i$ L& v2 O) x NULL,- m% M7 t: p: u
&ei, 8 s! a/ |1 k T/ G5 D( o4 O &uiErr);1 @. p8 w0 J `# t/ d2 N6 T
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SysFreeString(topicStr);3 B/ V! {2 }$ n$ U- |
SysFreeString(itemStr);* `4 X# ]; O( i! y- M2 {
SysFreeString(valueStr); + w1 p& i) T8 s9 b5 r, d" y# m; _# o U * {, W: U, {0 r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???2 l& F. W% N( K" Z
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????0 C/ @1 H1 n# ?/ w
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1 t: `9 I: r/ e1 e3 r3 u) M7 L2.这是request的程序/ w- }( l2 i% ]; }2 o
// Request a value from Extend $ V) x, n$ ?7 s' t3 O# L7 D) s' P//' `9 e. Q' I# Q( n# m1 m- n% e
// Initialize the variant that will hold the BSTR. Set the variant's3 G9 \6 ?' j3 w* a3 T. n# e5 @
// type flag to indicate the fact that this variant holds a BSTR. Place the ( t' S, J, h, d* ~3 Y9 f// BSTR into the variant structure. 3 h5 G. b8 o, a+ h& v 2 l% I4 a- |- m8 B' h" p- r requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 7 ]( O8 l) H$ M* C& t' q + a$ g& |7 V# S" D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # f# X$ r) E1 W VariantInit(&requestVariant[0]); " _/ @5 [5 P1 m6 \5 N
requestVariant[0].vt = VT_BSTR;: \ d0 {' p6 _. R n4 p6 I
requestVariant[0].bstrVal = itemStr; p5 B8 w ` M3 T3 x* }% Q9 N5 E0 d3 ]- x/ R) L; Q: {/ L
topicStr = SysAllocString((WCHAR *) L"system");$ I8 h/ @, f4 w4 X |* u
VariantInit(&requestVariant[1]); & ]: X6 Z( G9 z& } requestVariant[1].vt = VT_BSTR;- P0 u& B0 a9 M& z6 f
requestVariant[1].bstrVal = topicStr;- x) K+ A* u' ?5 u9 r: O. |
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// Set the DISPPARAMS structure that holds the variant.3 e1 a2 X4 K: K( e) a, Z
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dp2.rgvarg = requestVariant;$ e3 `! R; s) r
dp2.cArgs = 2; 7 w6 ]* r$ E+ A7 h9 Y& _2 C dp2.rgdispidNamedArgs = NULL; % P( j/ s# U& g4 F2 `4 h$ m dp2.cNamedArgs = 0; K5 l4 I" o) Z5 Z7 a# N 1 s9 Q$ @0 M- ?6 Z6 Z var.vt = VT_EMPTY; - K) R, P) z- F' b2 a" ^) I, h! E z
// Call IDispatch::Invoke() , I& a. ?3 h. M# F* B7 e/ N( i
hr = m_pDisp->Invoke( P( K' e4 A, Q5 H% V8 b- O2 v# K
requestID,4 t8 } p2 N* K& f* C, S- c$ J
IID_NULL,. h8 \. W, G+ p9 [' [# D0 N
LOCALE_SYSTEM_DEFAULT, # O w0 {4 e" [* z* Y4 v DISPATCH_METHOD,2 \. t ?, E/ t; f+ e! H
&dp2, 1 P: ]% R( D+ C# A0 Z &var, a: D8 r% b- [# L- L3 O& |$ e
&ei, $ Y$ `) Q0 z" P( S* V &uiErr); " w& F3 W: y2 S0 H# ~; K' d) @/ u. t% L- _" h0 a( e
SysFreeString(topicStr);6 D4 b/ M3 O( c# Z, d
SysFreeString(itemStr);) B T$ ^- C: O8 w) _
请问该程序是获得extend里面的哪个值?- A+ J M0 e4 Q$ S7 a; ~
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????