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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:. y: i0 u* k7 o% f2 e, M- i
Name = (WCHAR *) L"Poke";" X7 G; L1 x ~: @
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hr = m_pDisp->GetIDsOfNames (
" z! p) D: l. G/ q3 V! D" j4 n IID_NULL, // reserved
+ x, X8 y$ c: @+ H( ^( E* u &Name, // Array of names to get IDs for
4 w c: k; |% u2 J 1, // # of names in the array% w' A8 M2 L5 o1 ^& x) V; |+ @7 G" b2 {+ O
LOCALE_SYSTEM_DEFAULT, // System locale
5 s5 B2 V: V! t& u2 V &pokeID); // Array of IDs to fill on output+ T$ j1 ^2 {6 x; }' N' D8 V
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if (hr)
+ u( `3 v/ ]/ d& x( J {
- M: C! ]! I: V' v* e' q$ G MessageBox ("Get Poke Unsuccessful");
/ W8 x$ T( _8 H6 j0 e9 Y" w7 W return;
- i5 \7 e6 X: L" g, K q }
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" `+ K0 a* m: c' o7 G% g/**************************传递数据给extend**************************************/# [" x& m8 J& O' L
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);5 J$ |" F' k: p5 a2 u4 M& i$ Q
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valueStr = SysAllocString((WCHAR *) L"1232");
: X7 o1 V4 ` ~& I8 \1 t. G$ p VariantInit(&pokeVariant[0]);
6 u7 P$ e7 C) x$ Z pokeVariant[0].vt = VT_BSTR;$ |$ m E( P' l4 U0 e0 d( H
pokeVariant[0].bstrVal = valueStr;2 o L! V; W; U! C! Z' u
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
3 }) F, D& q V9 C. } VariantInit(&pokeVariant[1]); 4 l3 r0 w! d' V. l" a
pokeVariant[1].vt = VT_BSTR;* U8 t, Y$ |- N% o) o$ k" f" R% U& w
pokeVariant[1].bstrVal = itemStr;
\% ~( f* f4 y$ S
|% E* H' |. v; S) ] topicStr = SysAllocString((WCHAR *) L"system");
* H* @3 i3 a1 ~( g# i I0 d8 c VariantInit(&pokeVariant[2]);
8 Q; M6 U( y, o6 g; H8 Y u pokeVariant[2].vt = VT_BSTR;
% O6 p* a+ Q! f pokeVariant[2].bstrVal = topicStr;
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% X) _" d0 m/ u7 f( \// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
, B1 f3 v$ D- r- I" |! W; M+ z* O% Y1 N dp.cArgs = 3;
3 o% B# K7 D: E H8 d$ ` dp.rgdispidNamedArgs = NULL;& j. y8 a: ?: k2 e7 M' h/ I! v
dp.cNamedArgs = 0;/ i! c" J4 w6 N4 F( K/ F
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// Call IDispatch::Invoke()' V7 N z) L8 j0 d" N5 G2 B+ P S; `
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hr = m_pDisp->Invoke($ r7 X5 O/ V1 Z& W2 t
pokeID,! A+ Q% Y# F9 P W0 ^6 {- ^ v- d
IID_NULL," R0 a% s" @( t1 ^, [/ z$ J; a
LOCALE_SYSTEM_DEFAULT,
. g& N3 e5 t" x& J. G# `7 D( F; k DISPATCH_METHOD,
$ ?( p6 A& K; l9 I$ s) u- U* e( N &dp,
; [7 q% J7 }' l4 H NULL,
' c4 V/ H) c' ^. Z( [ &ei,1 G b0 ^. f0 Z
&uiErr);) x& T. b; F9 m0 E, {; Q& W
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SysFreeString(topicStr);- l% g; ?/ X+ d G8 F) f
SysFreeString(itemStr);) w+ P( P- d: C6 g
SysFreeString(valueStr); D* B( ?7 u, g) j [2 ~# C) Z
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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???
8 i% Y Q& c. {! m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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9 z/ X. m. ?8 U5 h: R3 g9 _2.这是request的程序: B# z" A- Y$ G1 W$ A( P' l
// Request a value from Extend
; @, b8 y! i2 K2 R, X( ?//
5 O5 \; _# P* Y; ~7 O// Initialize the variant that will hold the BSTR. Set the variant's
3 D. s0 i, F6 P) i* U0 | E) w// type flag to indicate the fact that this variant holds a BSTR. Place the
) ~. z. a6 `; V/ P// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);5 O9 k7 s3 A- i% B& |
# Z: T3 P( c8 D/ A Z. F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
' }$ Q+ z5 G" M1 f e# ~ VariantInit(&requestVariant[0]);
" A" e `5 Z2 [. a( m* W requestVariant[0].vt = VT_BSTR;
$ E2 y U4 G9 v/ j- J9 D, K requestVariant[0].bstrVal = itemStr;
* x0 q8 ^. P. Z: d* |" _( E
& a( M/ V& Y% Y0 w; T! v3 a topicStr = SysAllocString((WCHAR *) L"system");
- @7 O: B( L- x. f+ T+ Q2 _ VariantInit(&requestVariant[1]); $ L( K4 K1 @8 t1 `* V$ j4 G, c
requestVariant[1].vt = VT_BSTR;# d4 P7 }0 i7 q& g8 z5 X! D m
requestVariant[1].bstrVal = topicStr;' I" T( q& |# [" n
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// Set the DISPPARAMS structure that holds the variant.( p: L4 b$ Q8 ^* q" V2 U3 a
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dp2.rgvarg = requestVariant;
& E& r" @0 D& r dp2.cArgs = 2;
7 l: b& R/ I* f7 N2 C4 K' B5 d5 B dp2.rgdispidNamedArgs = NULL;
( j5 J( p! H0 f) \1 W, p dp2.cNamedArgs = 0;
- R# s# h9 O h( ?
& w# m8 I4 k5 A& o var.vt = VT_EMPTY;! C4 L4 Y9 y2 Z0 @# h! b
3 \* d. O0 V. `0 b// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
$ }8 C* _7 _- b1 _8 E! g requestID,
9 V; J; Z: I7 O) C6 j& p/ U* b1 [ IID_NULL,
; t. ]) K( p, c( R) N LOCALE_SYSTEM_DEFAULT,0 { h+ b( j7 v7 K; P+ T6 p
DISPATCH_METHOD,
+ U) i H* |% W R: f. j1 J I &dp2,
' d/ o) M2 Z2 P9 I/ o5 A &var,
; \6 \7 z3 d- T: B" Y1 _ &ei,, X+ I l) ^4 _( c3 t3 X; I
&uiErr);
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SysFreeString(topicStr);
5 S0 {/ y0 q( ?! C( m SysFreeString(itemStr);
! Y1 \$ z8 J/ T& r7 x请问该程序是获得extend里面的哪个值?
% n7 D8 R7 ]0 O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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