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: O4 k. k$ P( U- K/ R3 Q1 qName = (WCHAR *) L"Poke";% g+ I0 F! s$ M2 i( `
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hr = m_pDisp->GetIDsOfNames ( 1 Q" j* n' u- o5 H7 w IID_NULL, // reserved5 }* ~9 K; S8 H2 [. O
&Name, // Array of names to get IDs for$ K! w; t, l! w0 S5 n u
1, // # of names in the array) o3 ~) N) c* x. V5 e2 v8 R$ x
LOCALE_SYSTEM_DEFAULT, // System locale 8 p d& |% M0 _' j; n &pokeID); // Array of IDs to fill on output ; {) `" j! m( s) M7 e1 S; U ) D) r5 m S6 X8 u3 H if (hr)4 Y- F9 ]% H% M6 w
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MessageBox ("Get Poke Unsuccessful"); & q1 v7 p9 b$ | return;9 n' \( L6 u, f: E5 k
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/**************************传递数据给extend**************************************/5 e3 m% Z0 r$ O4 {) Y
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);5 ^9 B& t5 E/ V- m# K
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valueStr = SysAllocString((WCHAR *) L"1232"); : m/ B6 z. c, z VariantInit(&pokeVariant[0]); ; @+ F8 }) g$ \. L8 H pokeVariant[0].vt = VT_BSTR; 8 j# i, K5 }. s" }& Z pokeVariant[0].bstrVal = valueStr;5 g0 n" }9 p8 h# B
$ ]" k' C, c3 b8 w' W itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) @3 y1 z6 m+ T( R1 [( c
VariantInit(&pokeVariant[1]); % w4 b# g. |- N1 n pokeVariant[1].vt = VT_BSTR;5 S' j& Y, R6 N. D
pokeVariant[1].bstrVal = itemStr;" K) f" S# i, }
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topicStr = SysAllocString((WCHAR *) L"system");( L+ e7 t* X) Z! d; V4 c
VariantInit(&pokeVariant[2]); 1 G0 N- ~7 v, t9 W8 [& A
pokeVariant[2].vt = VT_BSTR;- E5 I' c* E- _% R
pokeVariant[2].bstrVal = topicStr; - [) L' H/ e7 g( F( s, y5 R7 L7 @+ k% k1 I& c) \% j! I
// Set the DISPPARAMS structure that holds the variant. ' Z6 q$ }* Z5 b' _' j# ^9 X, o/ c7 P& L8 [/ i# i# [) F* Z2 M) {* }
dp.rgvarg = pokeVariant; & }1 ~0 G3 s% f X# H5 f dp.cArgs = 3;9 R# A3 u: A2 A1 ~8 C
dp.rgdispidNamedArgs = NULL;$ U; A9 S/ w( F0 T3 l
dp.cNamedArgs = 0; 5 h* S( r( y0 c. o' Y! T$ a - l8 V; J/ P; C7 B4 c/ R: \// Call IDispatch::Invoke() & R b1 x; M! Q" F6 \- K! J& M $ C* B3 V1 Q$ t# M/ L. e hr = m_pDisp->Invoke( : s) A: k) i9 ]* t4 ` pokeID,6 S W" G& z3 a1 G6 ^
IID_NULL, 6 w4 O, d9 W% a6 F. a LOCALE_SYSTEM_DEFAULT,8 {* N7 {8 _6 R# ~' T6 ]
DISPATCH_METHOD," @( B8 c9 q+ s! q/ D' p7 E
&dp, " X# A9 z) _2 l: w3 Y6 p+ [2 ~ NULL, d; [6 b" B9 `- G &ei, , d; t5 ^$ z. N3 n6 P' n& a" Q# [ &uiErr);% C( H I! X# Z" R
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SysFreeString(topicStr); * }* j; ~+ z# H' J- N SysFreeString(itemStr); - V4 A9 Z' J% X* x% k SysFreeString(valueStr); - `" _+ A3 b& m! `8 S. p& ^* Z8 c7 E) l! ~2 d8 q1 T
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??? " e( ]: Q1 w0 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????( ?# h- b8 |, M' t8 R1 v
' ^6 ?$ |3 d& `+ h " X7 b- C' x$ `/ f3 K2.这是request的程序 " q2 |0 T! d. w) J0 j# r; T# _// Request a value from Extend( o4 T9 z9 ?; y8 Y4 c& T& R8 `; `4 t
//5 @: }4 ^, ~7 x) v2 k+ o2 K
// Initialize the variant that will hold the BSTR. Set the variant's" N4 l: S3 x" H% O, l$ f4 l
// type flag to indicate the fact that this variant holds a BSTR. Place the+ W6 Q- l6 O" P9 ]
// BSTR into the variant structure.! E [0 ~7 U$ _. e7 h
+ y8 N& \" }- ?# x requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);, s8 W$ }$ H C& R
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* q3 L$ x' C3 G5 b5 }7 S% Y0 w" x3 `
VariantInit(&requestVariant[0]); & ?6 @- \% e7 s. `9 o
requestVariant[0].vt = VT_BSTR;- V0 ^; p) {, j: `& e( L
requestVariant[0].bstrVal = itemStr; ! I6 T/ c0 d9 z' B1 e . k! ]- k+ {+ U; J/ F8 r topicStr = SysAllocString((WCHAR *) L"system");: ]- x" [; ^% ]
VariantInit(&requestVariant[1]); % h, C: z$ u9 r requestVariant[1].vt = VT_BSTR;" S8 ?+ g3 G( V, D6 M7 ^3 Q
requestVariant[1].bstrVal = topicStr; - V6 S" {; h. X: c9 n& L7 N ! f) u) s+ u1 |# i// Set the DISPPARAMS structure that holds the variant.9 J2 s5 g: m4 X
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dp2.rgvarg = requestVariant; 3 p5 A+ M' J( b# X( `& T dp2.cArgs = 2; 9 O+ S: R6 Z. {# {0 H; J4 u% x/ Y dp2.rgdispidNamedArgs = NULL; ; U. U' ~8 b5 L, N x dp2.cNamedArgs = 0; ) U' J7 f: o6 ]# S ~& s+ `. B$ C( v5 R' m
var.vt = VT_EMPTY; 6 \1 e* |4 Y' Y * X4 p$ Z4 ?# e7 D1 N, N& C' T// Call IDispatch::Invoke() 7 V$ t( {, q! p# d: y+ x9 w7 C : d0 m/ m# N8 m2 F hr = m_pDisp->Invoke(+ f1 |' m, d* i8 K1 ]1 O% \
requestID, 3 z5 c( u4 e) v% z3 C5 g+ M% H' s IID_NULL, / L. b, _4 } n4 X) x LOCALE_SYSTEM_DEFAULT, $ K1 s3 @0 t& _1 a2 o0 U( E ]! w) X DISPATCH_METHOD,( x' V8 A6 U: v0 C6 Z
&dp2, $ ^ C$ E7 K$ U' ?: f &var,8 r8 J/ O$ M2 [' m0 Y
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&uiErr);% k+ c, _, l2 b% {4 G7 e6 G
6 M1 @8 C$ [$ S6 O& d( g% l SysFreeString(topicStr);: a. R* }: a2 q% ?. Q3 S
SysFreeString(itemStr);' X. L: g* `9 W- p$ R; _/ q4 Z4 L
请问该程序是获得extend里面的哪个值?% o) L9 Q! C# W0 ^$ _
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????