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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:% k3 z/ l4 J/ f2 ^: f
Name = (WCHAR *) L"Poke";
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: J( g* U. T- g% R! A! h; T. v1 Q hr = m_pDisp->GetIDsOfNames (: Q1 @. w' C! x
IID_NULL, // reserved
* F9 P" F, D) W6 @2 z" d" N x+ } &Name, // Array of names to get IDs for6 U4 A! F" M( O/ E6 R2 E& x, j
1, // # of names in the array
5 C/ R# [8 z# ] LOCALE_SYSTEM_DEFAULT, // System locale+ y7 I- j& u/ g5 v/ [
&pokeID); // Array of IDs to fill on output
# K, c6 u$ Y* C
) y- X! |4 r1 C% [ if (hr). v1 o+ Q5 L9 z: {5 O
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MessageBox ("Get Poke Unsuccessful");
3 c9 b" J2 g8 }/ d. p, x! E0 Y0 n return;
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/**************************传递数据给extend**************************************/; B" k1 o# ^8 h/ x; ]- C5 F
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 L. G! N' D2 [& ^3 @& y# A( X
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valueStr = SysAllocString((WCHAR *) L"1232");: x# p+ _( m0 i0 H
VariantInit(&pokeVariant[0]); % W7 B3 \9 g$ j) S: Z4 t
pokeVariant[0].vt = VT_BSTR;
" v8 q3 O( V: _0 O! Y# }* W2 J0 L pokeVariant[0].bstrVal = valueStr;! C v' ]+ S# {; ~
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# y9 p/ w0 Y) d- r, Z
VariantInit(&pokeVariant[1]); ) h2 n2 x, ^) G) K% L
pokeVariant[1].vt = VT_BSTR;3 C& r6 H( p$ E
pokeVariant[1].bstrVal = itemStr;
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& p+ n; m& d( K( j# W topicStr = SysAllocString((WCHAR *) L"system");
, U) [1 \) c; z) A VariantInit(&pokeVariant[2]);
& i, n* E S z pokeVariant[2].vt = VT_BSTR;
% E6 H0 j$ Y+ `- ^9 v* T6 \4 ^% k pokeVariant[2].bstrVal = topicStr;
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+ t4 u4 B( q$ Z$ U// Set the DISPPARAMS structure that holds the variant.
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" }1 R- k9 s- m9 K dp.rgvarg = pokeVariant;+ j) ?1 l( S5 _/ r c
dp.cArgs = 3;
4 f8 U) M4 J8 k dp.rgdispidNamedArgs = NULL;
5 r3 g5 [% v: m9 p( W1 M- y; k dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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$ H0 t8 [* l% c( S( ] hr = m_pDisp->Invoke(2 G) O# C4 m, f2 A1 e
pokeID,* H1 {+ C* Z- W
IID_NULL,
) c( S$ g; }0 s- M4 Z9 r LOCALE_SYSTEM_DEFAULT,
6 e7 R7 a2 X/ P0 ?0 E* n9 _$ C8 r DISPATCH_METHOD,
' C- s7 v# |3 f; W q; }% m1 p2 L+ j &dp,# t3 h" e% I5 j# ]' C
NULL,2 n# z8 ?/ z* b3 o
&ei,
4 z- ^' G2 S3 ?& q& H7 z# Q! f" G &uiErr);9 k' A1 {% E( h6 ]
: a0 f3 D1 n6 n" ?& a( k% n SysFreeString(topicStr);
& n; l* _8 N! d8 g6 _* K SysFreeString(itemStr);
' [+ S2 Q# w9 x. q% _ SysFreeString(valueStr);( Z) P" J7 v2 r2 Q& K0 k0 j' n ~
2 v! X' } S& L) z4 m* q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???
% f6 Y( Z5 d0 y" B3 u2 F6 V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????" E" W% c* i! }
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^4 ?: n! b9 ` Z& a2.这是request的程序/ V4 t$ y r# O1 q$ E
// Request a value from Extend6 h& x( A2 I9 F1 R& I: s0 d. c
// h+ }) {& |% T& y3 t0 u8 A
// Initialize the variant that will hold the BSTR. Set the variant's' _8 U, N0 h) X- n1 R: x$ }
// type flag to indicate the fact that this variant holds a BSTR. Place the
. j: p1 s9 C* [$ B2 \- a// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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; K+ @1 P/ m$ P9 e4 H) m itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
# n+ L3 W( u t VariantInit(&requestVariant[0]); . n# {. e6 S# U; t" [
requestVariant[0].vt = VT_BSTR;& G) j$ k. A4 B
requestVariant[0].bstrVal = itemStr;
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# o9 Z; [" N# }+ M& A% U topicStr = SysAllocString((WCHAR *) L"system");5 }0 w& p& D) P2 L0 R! l: D5 U
VariantInit(&requestVariant[1]);
9 u& Z$ ^1 M0 m" L' g# x; N6 h0 V% W! Z requestVariant[1].vt = VT_BSTR;4 t1 t! E% \/ M: K& W
requestVariant[1].bstrVal = topicStr;
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( B. z: Q9 K+ h! J" q9 E( h// Set the DISPPARAMS structure that holds the variant.$ D9 m+ o3 j9 ^0 d& n
7 v, K- P" A2 X1 Z3 d u dp2.rgvarg = requestVariant;7 _* l) h- R2 e/ L: B
dp2.cArgs = 2;+ }) u5 c+ A: g
dp2.rgdispidNamedArgs = NULL;
. ?0 C- S" E5 K9 r3 s. F dp2.cNamedArgs = 0;* @* N2 S7 ?9 ?$ y$ \; e' F7 k% Z
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var.vt = VT_EMPTY;2 @, \+ n8 w" z
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// Call IDispatch::Invoke()* q4 y0 z0 ^- ^4 a; Y
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hr = m_pDisp->Invoke(
4 i7 E2 \3 @* _ requestID,
( i3 l. P, h& }1 u& k IID_NULL,' I, r* ~( N( Y4 m
LOCALE_SYSTEM_DEFAULT,
' M3 a. t" x- ~- {. N* {, n DISPATCH_METHOD,# T6 i( H9 w+ i' S8 e* s2 a
&dp2,/ _: ^" e3 I- A& w0 C& x
&var,# z. T8 s# K) s9 M1 X; i
&ei,
. _# g- X6 d# Z" p( \% y. I3 a &uiErr);
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# }& h& R8 }5 J4 K, f& K SysFreeString(topicStr);+ B2 _; r' n ^$ d1 B* Y
SysFreeString(itemStr);2 Q7 }! g1 C C H
请问该程序是获得extend里面的哪个值?. V' w1 X& ^) o% n0 _) r( X. \$ }( M3 ^
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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