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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:$ D' F& g, y/ Z3 \; ]+ P) N) L
Name = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (% p# w% @, |) }4 r9 u9 f
IID_NULL, // reserved. s( u8 c; U5 {2 r8 t6 H6 H
&Name, // Array of names to get IDs for
* s; L$ A% D5 l8 E( a. ?2 M 1, // # of names in the array/ s6 U4 [; [ `( ^7 T& K* _
LOCALE_SYSTEM_DEFAULT, // System locale
$ E5 l1 q, e! H7 E$ ^' H &pokeID); // Array of IDs to fill on output
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if (hr)
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MessageBox ("Get Poke Unsuccessful");& b ?0 [( g3 o8 M
return;0 z5 ]; G/ q9 Y$ F
}
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/**************************传递数据给extend**************************************/
1 F9 y6 {* q! n1 ]' i pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 D2 v- O$ z& S/ C
) @9 x8 X0 Z# V; p8 H% u8 F' X valueStr = SysAllocString((WCHAR *) L"1232");
. r! k N9 H1 J VariantInit(&pokeVariant[0]);
- _' u' m( W' {( Z3 S& e+ M pokeVariant[0].vt = VT_BSTR;. y5 s# W/ s6 P' D( G* u
pokeVariant[0].bstrVal = valueStr;$ f* I! I1 k; m9 M+ a4 I- o
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
" J" G; O+ l. I6 e: K9 v7 f7 ] VariantInit(&pokeVariant[1]);
2 f* h1 h) p+ S; k pokeVariant[1].vt = VT_BSTR;) b7 b- L. k- e$ P% P5 k
pokeVariant[1].bstrVal = itemStr;
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F; @! K8 s8 f4 l' g3 [6 z' B topicStr = SysAllocString((WCHAR *) L"system");( V' c t5 w1 g) D
VariantInit(&pokeVariant[2]); 7 \! t2 s7 N! `& Y, d
pokeVariant[2].vt = VT_BSTR;
4 u5 s! {( |" ?* J8 j" G pokeVariant[2].bstrVal = topicStr;* p# u: X; f6 |
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// Set the DISPPARAMS structure that holds the variant./ I4 b5 J; {) v) m& M# N
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dp.rgvarg = pokeVariant;+ e6 t A# T" J, ], o: o
dp.cArgs = 3;% I- H- x. D4 i5 L& V+ B2 J. `
dp.rgdispidNamedArgs = NULL;
0 P: I, s3 |- \9 N- B dp.cNamedArgs = 0;
@8 Y2 h# `) Q2 d# B P2 N9 A
. B3 M5 l& q* X% Z2 M: W// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(1 B: f* p% U0 }7 @
pokeID,
0 Q2 K- Q: I8 m) q7 z2 R, h IID_NULL,5 a: |# G n" _( u1 h
LOCALE_SYSTEM_DEFAULT,
! P% @' J& `! d- t DISPATCH_METHOD,! a, T8 @ B4 i& u9 J
&dp, y' q! W; m0 n! N0 Y( b
NULL,5 v: Z8 B- Z/ h+ x, k
&ei,. H% n# t) }; o5 M) I2 Z$ J
&uiErr);5 m! l. K! C& ]
$ ~5 ~: d& X) ~* w: f- X- N SysFreeString(topicStr);
$ @5 ~" T' [+ P SysFreeString(itemStr);
% n" o g! H6 [ SysFreeString(valueStr);
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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???. a/ ~0 e4 Z' ~, x: P
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????. \7 O2 x D9 s1 z/ [
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% ?7 X3 E+ k0 Q5 `4 H2.这是request的程序/ q& F; J+ I" C# B& x4 \6 u
// Request a value from Extend
. h# p F- T" P" U! m//, f2 m3 a9 R& z8 ] M( e0 u
// Initialize the variant that will hold the BSTR. Set the variant's
- Y9 Q. o, L2 k8 s' q6 W// type flag to indicate the fact that this variant holds a BSTR. Place the
( |2 m; \! D9 `3 E" _// BSTR into the variant structure.
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) {9 I n& }$ P% G; p3 K# N2 f/ k requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 B& z2 B2 s4 S* R7 N
VariantInit(&requestVariant[0]);
{' [- Z6 c8 u7 e* j; _- | requestVariant[0].vt = VT_BSTR;
- s( o6 f0 I5 S! y3 P% j2 B: ]* b requestVariant[0].bstrVal = itemStr;/ C. w$ i- S& f+ K) ^
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topicStr = SysAllocString((WCHAR *) L"system");! C, W2 M8 k4 W4 X8 p
VariantInit(&requestVariant[1]); 6 K/ P" J _# ]6 B+ h' K
requestVariant[1].vt = VT_BSTR;" t8 h9 j" D W$ ?7 N" L. W) P2 `* m) V
requestVariant[1].bstrVal = topicStr;3 E. f9 Y5 V! ?' a5 P
3 U, c9 G5 |+ K( C6 s' @// Set the DISPPARAMS structure that holds the variant.
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) j& g# H5 V0 M- q8 f- [# n( @4 R, t dp2.rgvarg = requestVariant;* N$ ]3 `7 Y1 H7 s
dp2.cArgs = 2;4 n8 Q( D9 Q* f$ P& ^
dp2.rgdispidNamedArgs = NULL;, F& @1 p, A) ]* X
dp2.cNamedArgs = 0;
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& l' `5 N4 P1 l3 i1 W var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()( |5 }3 S; j2 {4 F
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hr = m_pDisp->Invoke(; S" O1 U' s1 W# B" n, M6 i
requestID,
. |1 o# [5 S+ a: h0 w# Q& x IID_NULL,9 Z# s1 S$ I9 j8 [- N
LOCALE_SYSTEM_DEFAULT,4 f# L8 [$ Y7 W, V' d3 D+ _1 O
DISPATCH_METHOD,
1 @; \/ A P8 l: q8 K% Z &dp2,% k) k. A6 g; S% c, J8 Y7 }$ M
&var,6 P2 \; k, Y, a5 ?
&ei,! g, p7 e/ G$ F) D& Q1 T/ w
&uiErr);; F% k7 Q4 S! M
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SysFreeString(topicStr);
; e2 g& J4 [6 j3 L; t' t) Z SysFreeString(itemStr);
8 G. i; l$ _! `4 A A" B4 Q$ F( I请问该程序是获得extend里面的哪个值?: x. e8 B4 H5 G0 ~- m! H; R
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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