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: ' W# k x# R IName = (WCHAR *) L"Poke"; $ d: M9 ]7 K/ {% {8 K- J5 S ) _& b* W* U4 W' Y3 o; i hr = m_pDisp->GetIDsOfNames ( / g* U' r. W6 ^) E0 z& e1 f% ?! K2 F IID_NULL, // reserved 7 t5 U! K3 Q- f; |$ |* Z &Name, // Array of names to get IDs for% G4 D4 b1 }$ R) ?3 b3 p o" l
1, // # of names in the array 3 Y3 z# @: S0 f LOCALE_SYSTEM_DEFAULT, // System locale / ]9 a! p6 v% ]* Q &pokeID); // Array of IDs to fill on output# ^2 d; J* n1 A' a
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if (hr) 8 Z$ |5 {7 x# w! ]. [- y { t: `6 \5 Q, l/ y, o
MessageBox ("Get Poke Unsuccessful"); # `" v# v6 Q! h% f) p* t& _ return;# i' B: j/ b6 ~2 v' Q6 A8 G3 _
} " P4 q) x% m6 L9 h9 d " x- j5 j, O$ @& z/**************************传递数据给extend**************************************/& \( z0 x5 N0 D. t9 D
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 [, {8 r! `0 s5 D1 \/ B9 ]
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valueStr = SysAllocString((WCHAR *) L"1232"); # [( x( {3 W3 ~! u6 X0 Q VariantInit(&pokeVariant[0]); 6 v* W0 m3 U$ m% V# Z4 O, F pokeVariant[0].vt = VT_BSTR; 4 M7 {/ U7 y% c* x3 s4 E pokeVariant[0].bstrVal = valueStr; ( v$ y; n: Z- h/ r* C$ P% X( q. Z7 c5 g/ ~3 G9 j
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 ?' d6 ^+ N/ p1 l! y VariantInit(&pokeVariant[1]); : a5 P! t; K1 b4 K* g
pokeVariant[1].vt = VT_BSTR; " |) c6 J: S7 v3 t: |! b pokeVariant[1].bstrVal = itemStr; & c/ f& a: s+ |2 a, s4 K# i& a# m1 ?+ o5 f- S& v; Y$ C+ y
topicStr = SysAllocString((WCHAR *) L"system");# y" j1 a+ I1 Q, r$ w+ |
VariantInit(&pokeVariant[2]); 4 b* H% u! s8 l0 {: V/ p
pokeVariant[2].vt = VT_BSTR; 8 ^. k1 q, U1 M7 D; F pokeVariant[2].bstrVal = topicStr; 4 f; b9 S5 X) M' p5 B- S& b! I# |5 p9 d' B- L
// Set the DISPPARAMS structure that holds the variant.* I" } v9 I, j+ O& K/ ?7 @
) A/ z/ J+ N" ?8 m6 Y, M: d5 e5 w dp.rgvarg = pokeVariant;% g2 d# {8 X0 v' p+ C; H
dp.cArgs = 3;% w s* `* h2 Y. L5 q0 ~9 ?) f
dp.rgdispidNamedArgs = NULL; - X' P, j( P' o8 Y/ } dp.cNamedArgs = 0; + O: o$ a( J' z- _/ w3 e& s+ K( R. l+ Z+ Z' S/ \+ D$ g0 p
// Call IDispatch::Invoke() + I( K$ D4 s1 F1 u% {8 F" O. N5 w: S3 F" U. q
hr = m_pDisp->Invoke(4 \ m5 i+ i4 W8 B$ O
pokeID, ; B" }9 a J5 |/ a IID_NULL, " S, Q8 ` g. u6 { LOCALE_SYSTEM_DEFAULT, 2 Q* m- P; Z; {( N- I1 [ DISPATCH_METHOD,4 i; G# K- f& ?
&dp, 2 ?: P9 H! {# _( w4 U NULL,3 E# N6 }$ w* d4 K. R, k
&ei, / p5 R- [: y! L0 r6 T! S" n &uiErr); 2 {" m7 I7 v! b7 p 3 K7 r' E9 d0 ]: X4 O! c; B SysFreeString(topicStr); 6 q0 a4 {% x- [' Q* _$ Z* C SysFreeString(itemStr); $ `' ?7 |7 a1 u SysFreeString(valueStr);% F# J" W( m0 P: D5 p# ?# V) @. Q+ H
7 q/ A2 @' o. @: U3 f( {5 I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??? [% M, s5 N3 h* l) T
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????+ Z1 t" O: z4 U7 _# v
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2.这是request的程序, T& y/ h! ^& T8 L1 d8 w% m
// Request a value from Extend / A# P' ?. ~6 ?. j* Y$ K// " b4 ^3 g6 H6 Z& T7 ^// Initialize the variant that will hold the BSTR. Set the variant's % I2 F+ M4 K, L3 t2 Y _; }' r5 c4 Y// type flag to indicate the fact that this variant holds a BSTR. Place the # R* V% x Z1 H" {: w8 G. H6 A// BSTR into the variant structure.7 z5 H) q$ h& X5 u! c
' w+ X1 M. y% K) o3 H' g requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);( @( L7 E4 j* v5 d: O+ a# a
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 G/ `+ U* N4 W) q2 w6 q
VariantInit(&requestVariant[0]); / F8 V& d9 `) ?$ S1 }! B# A requestVariant[0].vt = VT_BSTR;! S5 x& n( I( R) U* c) P
requestVariant[0].bstrVal = itemStr; , |& ?( z& k( E4 Q * k$ q \2 p3 j1 O5 k9 v topicStr = SysAllocString((WCHAR *) L"system");9 O: G% k9 h6 q3 Q8 u7 P
VariantInit(&requestVariant[1]); ! e1 N) O5 O: B: w4 N7 l
requestVariant[1].vt = VT_BSTR;; y3 U/ @, D" _1 n
requestVariant[1].bstrVal = topicStr; K, R; d9 ^- @9 v7 M: M" e7 V0 f& f0 Z, r1 n
// Set the DISPPARAMS structure that holds the variant.) ?3 }0 q3 Z0 E
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dp2.rgvarg = requestVariant; + X0 A9 f0 R0 q dp2.cArgs = 2; , H' T: B2 O" L7 c dp2.rgdispidNamedArgs = NULL;) Q# b$ B z+ }5 v4 f. J; J
dp2.cNamedArgs = 0;5 j! a& j; W: _% Z
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var.vt = VT_EMPTY;4 n$ E4 |7 N1 N) X
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// Call IDispatch::Invoke() 4 s# h! ^3 \. H 9 K& o" t( x' s* D/ } hr = m_pDisp->Invoke(! a' t/ [ S& B, Y: J
requestID, $ ]- y0 z% k& R! X# c% M) Z4 h IID_NULL,0 x8 C s6 l( @6 |- Z, ^; P
LOCALE_SYSTEM_DEFAULT, 7 C4 p: f7 z* y* P7 u v DISPATCH_METHOD, " w" _" \$ ?* ~. _ &dp2,2 B& Z8 M2 U1 W/ _! |7 r& M
&var,9 C t% g% ~& C8 L3 G& Y( j6 J
&ei,/ }, `) y; Z. P9 c5 j' w7 ]/ q( v
&uiErr); / w) |- L- ^0 T+ Z) [% K5 f/ _/ l6 F# Q! E6 ?
SysFreeString(topicStr);* i7 P4 |$ q7 S: K) `% M @
SysFreeString(itemStr); J9 p0 [1 p) W9 ?8 `' X# N请问该程序是获得extend里面的哪个值? 7 l! k f- G* s- |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????