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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:' f6 q" w5 R/ K+ _
Name = (WCHAR *) L"Poke";
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6 \3 b8 T$ H1 d' u; f hr = m_pDisp->GetIDsOfNames (
- K( t# U; e6 q/ B2 l IID_NULL, // reserved/ S! l3 j# n- K* l% G k T
&Name, // Array of names to get IDs for
) A4 }& T8 L/ Q1 `4 E% \ 1, // # of names in the array5 f$ }& a# o, K" n6 A% G; H$ T
LOCALE_SYSTEM_DEFAULT, // System locale
6 n* l: O- n9 R5 M7 z' a &pokeID); // Array of IDs to fill on output) M: O3 A( D! ~+ [- M
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if (hr)
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MessageBox ("Get Poke Unsuccessful");
6 |8 D, a) Z; N; n return;
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* C7 |* Z0 S/ u( T% ~, ^6 S; T/**************************传递数据给extend**************************************/; I% v% |: F( V! }$ m# m& g" \
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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- c) Q: q+ f0 ?- N, Y* `; Z! V valueStr = SysAllocString((WCHAR *) L"1232");5 Y6 Z/ H6 D4 c- n9 N
VariantInit(&pokeVariant[0]); 4 v% s* _& @& ]! G! ~) e- z
pokeVariant[0].vt = VT_BSTR;9 n7 u: P# i" m" \0 S
pokeVariant[0].bstrVal = valueStr;( Y! T, C9 y% ~6 k4 h
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- J% _/ J, q1 M
VariantInit(&pokeVariant[1]);
; h8 P* ~: ]2 |/ W pokeVariant[1].vt = VT_BSTR;/ L9 T5 d4 F8 r+ U! i6 {: e
pokeVariant[1].bstrVal = itemStr;
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S: n& N/ s! v& r d topicStr = SysAllocString((WCHAR *) L"system");
5 j9 @$ d& L2 w5 H9 ^) D Y" c VariantInit(&pokeVariant[2]);
! O8 c3 `3 M, P3 A3 d9 I: b% B pokeVariant[2].vt = VT_BSTR;
- b: n3 y0 `" w% R% a pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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# E7 a3 }! ~! m& x; L dp.rgvarg = pokeVariant;
$ { A9 U3 ]; y% J dp.cArgs = 3;
; k' p Q( t7 M- F) S, T. h2 N dp.rgdispidNamedArgs = NULL;
k' q) h W1 I0 ?7 L: W) \ dp.cNamedArgs = 0;
, L; A% o: H- I, K+ J( l2 N& w
|2 d4 h3 @: J5 d4 u$ B, f// Call IDispatch::Invoke()
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! Q1 K P, Y& h' T4 a) W2 _ hr = m_pDisp->Invoke(
: L, T, }5 u& h: \& v pokeID,
' J: ^% j$ N5 o. i( C- s IID_NULL,
" x; C9 |0 _0 i3 ~$ s LOCALE_SYSTEM_DEFAULT,
2 O( _8 P# W) o' D, O* W DISPATCH_METHOD,8 x& X% s4 j8 A- c. k& I+ k
&dp,! @2 b W' b: o6 j
NULL,
3 ?' K8 C! k9 P b &ei,
$ }# i4 @) s) n) I% _% O &uiErr);
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SysFreeString(topicStr);: l3 A0 G1 E, z) d% E' A! f
SysFreeString(itemStr);
7 ^# ^% B+ l9 H" v3 `* i SysFreeString(valueStr);
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8 k( M- ?9 p5 L1 P4 z* ^( a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 a" H9 F$ K& T. S2 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????
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2.这是request的程序
) q/ u) ^- y6 Q3 P! u// Request a value from Extend
4 `( G l7 W$ C- S6 L4 M//
8 m1 {7 a; r0 ^6 l// Initialize the variant that will hold the BSTR. Set the variant's
- [8 J; X, Q# g4 h// type flag to indicate the fact that this variant holds a BSTR. Place the
0 p! `& d/ e9 m5 [( u5 e: n) @( @// BSTR into the variant structure.
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2 N R1 Y4 r+ {, N) e: h requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ R9 K) \! {, J$ r8 }
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
- o$ u r6 ^7 Y) v7 u5 J VariantInit(&requestVariant[0]); 4 d( J* Z0 I' |+ g
requestVariant[0].vt = VT_BSTR;
7 P# K% T. d" b+ h& i requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
1 b0 A: a! b$ n `: n6 Q VariantInit(&requestVariant[1]);
' O, d$ r5 z3 c: G) H requestVariant[1].vt = VT_BSTR;
v' i0 m% a2 _ requestVariant[1].bstrVal = topicStr;, Q# s/ M3 Y! N7 x& A
5 }2 ^' j- K# p, L// Set the DISPPARAMS structure that holds the variant.& c& U, N, I/ J7 N; s; S
6 P! t* f. v% Z& [ dp2.rgvarg = requestVariant;1 d- s; ]* D0 x# v1 s2 L: q, K
dp2.cArgs = 2; [7 m, M) m! C- i" ]) y
dp2.rgdispidNamedArgs = NULL;5 t, s7 G, Z/ j: y1 m
dp2.cNamedArgs = 0;
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; Y: C" V# h$ r0 F7 a6 D var.vt = VT_EMPTY;- ~- R7 J6 ` T) p8 ]& b9 H, Q
" o' d: h9 M) b) n m9 ]// Call IDispatch::Invoke()6 |2 N7 p6 @ W% k/ q
' t# u9 _, P5 S4 f, V hr = m_pDisp->Invoke(
* {5 G3 R; G& z+ J! a& F* z& W requestID,
8 o E( }5 b* l! u IID_NULL,9 u m: f- X' g; S, O
LOCALE_SYSTEM_DEFAULT,, B1 l `6 }$ R% r: _8 M# U
DISPATCH_METHOD,4 r8 C( m+ U( @1 V; m
&dp2,
! s0 d3 C/ R( f( e9 Q' S' d &var,* U& M7 r" g3 G
&ei,; P) k% Y' f$ L* L- K
&uiErr);
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# L; U! @# b3 U3 W* S SysFreeString(topicStr);5 c3 G& }( v2 F2 A+ G8 a1 {
SysFreeString(itemStr);
, @0 J% j& @# y2 A. L ?, |请问该程序是获得extend里面的哪个值?
3 y7 u6 b! Y9 t" ?, ~3 y3 _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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