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5仿真币
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:
+ r+ `9 ]- T" ~Name = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (' S* u& U( j4 l1 g! B- L# Y' u5 w
IID_NULL, // reserved* o! ~2 |* p- i; `. [( p& Y* O7 H
&Name, // Array of names to get IDs for
8 A& I% A6 ]/ L g+ ]( s: b 1, // # of names in the array
7 A+ j; a' O+ \& V LOCALE_SYSTEM_DEFAULT, // System locale
' e. ?- T H6 M/ U0 u8 U) p8 ? &pokeID); // Array of IDs to fill on output
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, w9 X; g2 l) s if (hr)& D8 h* p- X7 x( P4 o
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MessageBox ("Get Poke Unsuccessful");
: }# P! |; M. R+ j3 j return;5 Y. R! b" b! N4 T
}
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/**************************传递数据给extend**************************************/
' G7 f) \- Q: o/ K) a, c' u pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);3 W! W4 r0 ?; v
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valueStr = SysAllocString((WCHAR *) L"1232");, o8 a: u Z+ v: {, b
VariantInit(&pokeVariant[0]);
! C; G, \: ]' v9 x$ S pokeVariant[0].vt = VT_BSTR;
/ x4 m# V2 N4 S* {& Q pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
+ V, E( f' G' T. p VariantInit(&pokeVariant[1]); ( X" J# E( @& A" C n6 z
pokeVariant[1].vt = VT_BSTR;4 ^! W( ~ n. q+ ?
pokeVariant[1].bstrVal = itemStr; y0 c# l& J7 _! _
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topicStr = SysAllocString((WCHAR *) L"system");6 \2 b7 ]; h4 V5 Q) ^4 p. c
VariantInit(&pokeVariant[2]); " F5 u. p" c# C+ j# G' j) v( h0 ]
pokeVariant[2].vt = VT_BSTR;
( Z* e+ v I6 m3 U% Y pokeVariant[2].bstrVal = topicStr;
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. P* S: l; h* U0 ]/ D) G// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
- g b/ |8 F/ o! p3 M# I# s j5 M$ D0 k dp.cArgs = 3;/ Z, X8 m8 j% X3 ~ k7 \
dp.rgdispidNamedArgs = NULL;
) R: k" {' U9 h* t4 s7 G dp.cNamedArgs = 0;& T% ]$ G n _9 p# J
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// Call IDispatch::Invoke()% \1 c% Q6 h! C0 N
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hr = m_pDisp->Invoke(
$ @9 a2 S" p$ ^+ a( l, t pokeID,. L/ K& S+ I- r g% U3 D
IID_NULL,1 b+ V9 m; b0 x, [! _3 Z
LOCALE_SYSTEM_DEFAULT,
, o( U& P9 M5 y DISPATCH_METHOD,. C0 e7 |5 E* M& L1 [9 F2 P: g
&dp,' `/ z: c+ l1 o6 i8 f( R
NULL,
0 {% }, r3 n5 e: p, c( ` &ei,
~* [* x* |0 o: D: j &uiErr);
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SysFreeString(topicStr);+ Z7 V7 u9 U5 j0 s; e
SysFreeString(itemStr);3 k6 ?/ t& Q, i3 P( T
SysFreeString(valueStr);
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# |# j# A& [8 d1 I5 h/ j2 d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???
/ A6 ~7 } K0 R* G' E8 K2 V! 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????
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( G" S' C7 g6 q! L1 C |1 }2.这是request的程序
G; K$ E4 U$ B @1 J, x* L// Request a value from Extend
6 i0 i6 C: l$ X: x) n9 K' ?//
2 g9 u0 X+ j' ^1 ?7 m// Initialize the variant that will hold the BSTR. Set the variant's
6 K( j) `. N" J5 S5 l// type flag to indicate the fact that this variant holds a BSTR. Place the0 @% m' }+ K7 c, K
// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 h) K+ R; y5 S5 V6 J
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
/ o4 W* G* n- a, J8 w* C& O VariantInit(&requestVariant[0]);
0 P) F/ ?5 P% h0 U( o a requestVariant[0].vt = VT_BSTR;3 b# `3 \' E+ O
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");4 S' b" Y" X8 l. D8 F$ s2 d2 Y
VariantInit(&requestVariant[1]);
( L+ H, \2 ~0 s; C+ e7 e requestVariant[1].vt = VT_BSTR;4 J" g: y5 M3 N- s: b
requestVariant[1].bstrVal = topicStr;0 f* \: a: I, P6 e1 z3 f
* } v! m) X9 F$ i( ~. i// Set the DISPPARAMS structure that holds the variant./ b* |) ^0 z! B9 j: o
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dp2.rgvarg = requestVariant;
2 I# K" u$ a. P) u: j dp2.cArgs = 2;
3 b) f1 g( @& z/ W4 z6 b4 x* F dp2.rgdispidNamedArgs = NULL;$ C r; @& V0 l6 Z4 V! M
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;* h. f. G" O* K3 s* h. K
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// Call IDispatch::Invoke()) [6 k; L L7 |7 b$ a8 J: V* U: W5 o! t
7 U5 A! r! U( S; x9 k. Q/ U7 O hr = m_pDisp->Invoke(( G* k ?' b3 \3 }9 [8 B
requestID,
$ c+ `9 b8 _2 `: C& u IID_NULL,5 {1 v+ X5 x/ V* Q- D7 {
LOCALE_SYSTEM_DEFAULT,
3 j: u) Q5 z6 k# W* Z( ]8 E3 G# ^# ^ DISPATCH_METHOD,
$ Y9 {5 P! n$ A, f* I; d; v &dp2,6 P9 l) [4 F% _ ^* A
&var,
: ~) a' v/ T7 _" n3 o &ei,
0 X2 \6 `8 x' X &uiErr);
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SysFreeString(topicStr);, k1 Z+ u) W4 ?3 j5 a& [- r5 A
SysFreeString(itemStr);8 ~, x# \5 b! o% P5 ~% P+ h
请问该程序是获得extend里面的哪个值?8 z( T5 Z9 `! u2 h: A5 L
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???? |
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