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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:
" d6 l4 @9 Y" i# W, C- ]- [( c* G, FName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (, u/ t. q% o7 m, c; S- l" e0 r
IID_NULL, // reserved
, Q7 y/ H* \7 U, Q+ B8 | &Name, // Array of names to get IDs for3 I+ R! _( |+ J, ]/ J: g2 S& a
1, // # of names in the array
0 I( v+ C* T, X! A* P LOCALE_SYSTEM_DEFAULT, // System locale9 N6 V9 `! N) e# ^" _1 r2 ^% y7 b
&pokeID); // Array of IDs to fill on output
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if (hr)4 p1 x& ^7 T5 p- U) i* j
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MessageBox ("Get Poke Unsuccessful");
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/**************************传递数据给extend**************************************/
% V; r- L& t, N; Q$ a pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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% m0 |! S, M: L( t4 x. q( k valueStr = SysAllocString((WCHAR *) L"1232");
4 s. E; S1 U4 [' p VariantInit(&pokeVariant[0]);
. D8 e# z* y# x1 e pokeVariant[0].vt = VT_BSTR;; P# @; |& `( x! g7 i0 ~& l
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 a) {" v9 P/ r& l6 ?
VariantInit(&pokeVariant[1]); 2 O U1 V; J$ ~* A
pokeVariant[1].vt = VT_BSTR;- U! I- K* k+ v! d" t* ]; C
pokeVariant[1].bstrVal = itemStr;* z9 r: M( H9 U x- ?5 P* [
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topicStr = SysAllocString((WCHAR *) L"system");
+ Z: r9 n# `8 { VariantInit(&pokeVariant[2]); " ^# e0 n( y+ X& m6 x7 K* y0 w5 _' R3 S
pokeVariant[2].vt = VT_BSTR;
% ^4 f) V, z* u p3 ], p9 K W pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant./ M) J. N% J' E9 w% g
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dp.rgvarg = pokeVariant;; a6 \" E! h; s0 s$ N% H: v
dp.cArgs = 3;3 g& b/ Y$ e& c$ ^; `, W
dp.rgdispidNamedArgs = NULL;7 [9 ]( _1 t2 ]8 N" x
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(+ O* e+ \$ z! O9 O
pokeID,; a3 Y# ^: T' H; U l
IID_NULL,
% V$ D7 d0 t9 G! H0 [- P LOCALE_SYSTEM_DEFAULT,
. G/ h3 r' P. ~; ^# ] DISPATCH_METHOD,
6 g4 q, F0 ]2 `0 P9 F1 C* Y &dp,
* P+ F( A, x, Z$ S7 @$ X! y NULL,3 N1 `7 a& m+ G+ ^) M' c* c2 _
&ei,9 ~5 y1 t* |7 h! \) V
&uiErr);
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SysFreeString(topicStr);
& t1 g! K, Z+ N, L6 s SysFreeString(itemStr);
/ c# g+ O1 ^; G; X# [ SysFreeString(valueStr);+ R- f) G; ^9 |& o# f
% R" z/ p0 i6 N7 ^* M( q! z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???
+ y$ p1 Y% u0 h* x5 P" 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????' F( \+ O% z' W9 d( ^3 b& g
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2.这是request的程序
6 x; ~. p& m0 K9 O$ ]1 \// Request a value from Extend
! B0 H$ N! s8 B7 Q) d5 j//
# G" c9 J9 J2 M1 S# o/ v// Initialize the variant that will hold the BSTR. Set the variant's) O- A2 b, ?3 S: X
// type flag to indicate the fact that this variant holds a BSTR. Place the
- [9 M$ l$ T6 O0 O- Z6 q7 k5 ?// BSTR into the variant structure.( Z/ i3 F' _ [! |& _! ~4 {) f' q9 I
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 B7 x3 M$ s- x
VariantInit(&requestVariant[0]);
) d! X* V! n7 {! l2 _ requestVariant[0].vt = VT_BSTR;/ U- b( B: U9 u$ r; Z0 G5 l
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");4 R2 A( B7 o3 ]$ {. u: s! C* ]6 t
VariantInit(&requestVariant[1]);
9 z2 ~7 e" ^$ }7 K6 G4 B C requestVariant[1].vt = VT_BSTR;0 }" Q' p/ G6 y& K2 Y$ j' [: o/ v
requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.5 y# G5 K; E2 L0 a, W
3 {$ b* e6 u/ F dp2.rgvarg = requestVariant;4 m& \2 `- X' f
dp2.cArgs = 2;
" w! Y3 _; R3 N/ y/ t" q+ D dp2.rgdispidNamedArgs = NULL;
1 \% Z4 {' u( T6 o- T/ Y dp2.cNamedArgs = 0;3 h1 Q) L/ l4 Q3 D, v* M
+ M1 Q1 O( ?% M) z3 i* D var.vt = VT_EMPTY;
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4 T+ |% f d' Z2 H* D// Call IDispatch::Invoke()
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W. m& _# G& v! n! m4 X hr = m_pDisp->Invoke(1 M2 k7 H0 ~6 u& L% s( {
requestID,
7 v% g5 j8 H' U, m8 v: Q IID_NULL,
+ e" j' i2 b$ J. C* N LOCALE_SYSTEM_DEFAULT,+ m2 b6 w0 R9 r: k. l
DISPATCH_METHOD,! u7 b, O2 u1 i0 e3 f1 b: N
&dp2,
4 s+ ~. ~ [ _# d3 V7 _ &var,9 M0 V5 T, q: |; W' R. Y3 J* s" `3 H
&ei,! t' P, H1 x0 ~" F5 x" n( k9 ~
&uiErr);) ^1 T, j Q& d% k* X) Q
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SysFreeString(topicStr);$ W3 n( t, v* e/ S/ Y% k X
SysFreeString(itemStr);
1 X* X* o9 d! E5 |4 F5 i请问该程序是获得extend里面的哪个值?
% h6 t5 l9 y% A4 r2 H' M2 [; I0 x* 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???? |
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