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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:; J9 F- R1 p9 m" u. N' v7 D+ f, Y
Name = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (' b. |' t% B9 s
IID_NULL, // reserved3 S/ r N) w; m- N
&Name, // Array of names to get IDs for# }. o& v$ ^0 G, b
1, // # of names in the array- `# ^) C" e d. Q' q `& o
LOCALE_SYSTEM_DEFAULT, // System locale
4 j& H( O: U4 n &pokeID); // Array of IDs to fill on output
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if (hr)
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MessageBox ("Get Poke Unsuccessful");
* B7 d& n3 b. L' ]5 X! w return;0 [ Y3 r, r- Z$ T
}
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6 K( Q7 t3 X4 e/**************************传递数据给extend**************************************/8 p+ y( p' R5 @$ e* [
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 Z: m5 F2 E4 B+ t
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valueStr = SysAllocString((WCHAR *) L"1232");: r4 M- r- i/ W- Y
VariantInit(&pokeVariant[0]);
, F" b& E1 p7 M6 r) a+ d pokeVariant[0].vt = VT_BSTR;
0 N+ x& U$ g% B$ c pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
( x9 J, h. l: U; h2 w VariantInit(&pokeVariant[1]); 1 l5 d3 B5 j Q/ M7 D+ N
pokeVariant[1].vt = VT_BSTR;
' z. H4 L2 x1 [6 H' h% r pokeVariant[1].bstrVal = itemStr;1 M. B7 G1 }2 D/ c7 B5 a: l
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topicStr = SysAllocString((WCHAR *) L"system");: O- \# N! _6 P
VariantInit(&pokeVariant[2]);
6 P1 A' w9 J' l0 H7 i9 X* Y0 a$ G pokeVariant[2].vt = VT_BSTR;
2 ]3 f5 Y# t* O+ ?) o$ \+ f pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.9 v) `8 G; S7 B9 }) ?: H) J/ b
0 u" t- [3 {, m9 P dp.rgvarg = pokeVariant;8 [6 R1 F' x0 ~6 `2 a- A
dp.cArgs = 3;
3 |* B* b8 Q8 |' T/ K- B dp.rgdispidNamedArgs = NULL;* Y( P( Z$ L2 V8 ~
dp.cNamedArgs = 0;# k% q. u0 }) d( B
7 E; ]( u! R4 Q. H9 g// Call IDispatch::Invoke()
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* u' v. `6 J {* b# Y# e3 } hr = m_pDisp->Invoke(
# A" v7 h& \/ D pokeID,
# s" r8 |9 V* Y3 I2 j* y$ c9 g% r IID_NULL,7 t6 L$ q8 B% L" g9 d% F' D
LOCALE_SYSTEM_DEFAULT,, y! D& M! n; d6 _( s: Z% r' e
DISPATCH_METHOD,
. |0 W1 {- D, E5 b/ h &dp,) v% C, E5 X7 Y8 H
NULL,3 B) h B+ r' n! z2 r0 K
&ei,
. g# ^7 ?% \2 u9 G: j6 A+ n6 m &uiErr);
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SysFreeString(topicStr);
3 h# |+ F( m V0 J% N SysFreeString(itemStr);
8 u! m8 J7 f- U- \4 u4 r SysFreeString(valueStr);
+ ]7 I* H; ]0 l
5 b3 }. d+ Y% |1 U2 O8 G% d, c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???1 g" x; ]6 e2 N" A7 y
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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2.这是request的程序+ K) p( {6 y/ L! T; E9 O
// Request a value from Extend; r) Y" k$ B+ `! d. c
//, W; l% a! _, v" {9 t/ x, k
// Initialize the variant that will hold the BSTR. Set the variant's( O. c9 w) T0 S" q& ~" h
// type flag to indicate the fact that this variant holds a BSTR. Place the
% q1 J# N7 q5 x7 W// BSTR into the variant structure.
# ?8 z2 I" ~5 I( g" {' ~: F/ {) f$ f% x) ?( B
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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: S: m6 c. b/ w/ T( a itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 X, c9 ~" I) w3 e' v& A, E. N
VariantInit(&requestVariant[0]); 7 V$ c2 n! t4 _/ K9 [. v4 l
requestVariant[0].vt = VT_BSTR;
" h8 g: J# }1 W: F% u+ b3 w requestVariant[0].bstrVal = itemStr;
# C2 J" S: {& A& X
7 [! [5 `3 Y& w topicStr = SysAllocString((WCHAR *) L"system");
! P9 d0 b1 I) o( t9 K7 k2 k; F% K C0 r VariantInit(&requestVariant[1]);
* C9 H9 w2 I) F: B* @; u I* { requestVariant[1].vt = VT_BSTR; b6 ^6 W2 T, W S- b
requestVariant[1].bstrVal = topicStr;
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( @8 l; y+ b; i; }' ^3 ]/ j5 W# Z8 I// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;. ]! F* S' n3 F) ^- Q
dp2.cArgs = 2;4 D- j# I" \/ J$ j l6 t1 }6 n
dp2.rgdispidNamedArgs = NULL;" w# n& x5 @+ @
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY; ?1 ?$ X$ k' R6 s
5 J, b4 L" ?6 N+ d- `8 Z// Call IDispatch::Invoke(). k. X) t" v* V( Q. h4 |" N' T, d
& J! k! V( x/ @0 i; ` hr = m_pDisp->Invoke(
# t0 P: J1 Z j5 u0 x requestID,
4 y% O+ N% j4 T IID_NULL,
& o. U; X8 L/ G% @0 r* s LOCALE_SYSTEM_DEFAULT,
* K% S- Y! T! v, J: d( w* v; l( I DISPATCH_METHOD,
; S& q7 _- y. p# w$ m/ g &dp2,6 y4 m: v, ]1 W- f; N
&var,
( B/ G2 P( R$ f% W &ei,8 F" _& H, k# A7 D/ _: S$ l- s9 c
&uiErr);
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( H$ B, S6 |: Y& O7 i; j, R SysFreeString(topicStr);$ q1 k+ P+ i6 ~0 K5 M" y4 o4 \7 X
SysFreeString(itemStr);
7 n) L; R1 p8 \5 ?0 C请问该程序是获得extend里面的哪个值?
. Q$ @9 q% B/ [* |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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