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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:
/ H1 E# r$ r0 c9 u* K' }Name = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames ( T1 c7 O; _ ~* O2 L) G5 `. u, ^
IID_NULL, // reserved
0 L/ |/ q, }1 ], h &Name, // Array of names to get IDs for
$ Y: z+ @4 y, F& B 1, // # of names in the array
( L/ ?- f! K* w LOCALE_SYSTEM_DEFAULT, // System locale
, b0 A& r) L! I0 [3 G &pokeID); // Array of IDs to fill on output
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if (hr)$ W ^/ O, M; m' k
{
/ @/ C, ?( y. |" c2 `4 x( z9 A MessageBox ("Get Poke Unsuccessful");
0 H. j- T" W6 z) z i# F return;# r7 g* k1 t/ D2 B( S2 w
}
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/**************************传递数据给extend**************************************/4 P+ M" ~+ A! T
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ z; [) x0 z7 l1 P' e0 N( w
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valueStr = SysAllocString((WCHAR *) L"1232");5 l- G! r; m) x( j
VariantInit(&pokeVariant[0]); $ _# E7 k% }7 m5 x9 |% l1 R- b
pokeVariant[0].vt = VT_BSTR;
7 s$ ~/ ]1 @% w7 P2 H4 @ pokeVariant[0].bstrVal = valueStr;7 P2 q3 h c& B. x8 d
3 c" D1 C$ _. }) P! [8 e itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ g& Q# t) M' N: t) D1 ~+ z4 r
VariantInit(&pokeVariant[1]); + {8 Z1 s2 T% d5 y/ n3 M- Q
pokeVariant[1].vt = VT_BSTR;
& j2 p6 I2 T: i7 ]9 t7 j* a pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");, R' n4 R/ C& t5 [
VariantInit(&pokeVariant[2]); ! C$ ~. X/ Z6 p4 T
pokeVariant[2].vt = VT_BSTR;$ ^# @8 C) J! f/ E# @- y& b
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
. Q$ U- O, O& q% I5 @; D Y& C. B. d dp.cArgs = 3;, l! i$ n) m& d; q& i
dp.rgdispidNamedArgs = NULL;& [1 A+ ]: Y3 Z8 w
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(3 C$ d- h" g/ ~7 H/ P- B* A; ~
pokeID,5 b; |9 H F- M9 ^4 V
IID_NULL,
& Z4 H( P& s1 g$ x' B6 G: } LOCALE_SYSTEM_DEFAULT,
6 u5 c( p" d Q5 K; h DISPATCH_METHOD,; K1 z4 o. z" m4 f, o" Z
&dp,! l2 k" G6 X2 V9 B6 _9 Z$ J
NULL," _1 g% G+ ~& C( k X2 u7 P
&ei,
+ r4 s7 W- t) \7 d &uiErr);
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4 j/ N7 }: N! a SysFreeString(topicStr);
% ]9 p+ I! V3 x9 x; V9 u SysFreeString(itemStr);
5 F2 q- }* |& X SysFreeString(valueStr);
4 O5 s( W( b% O+ [
, R, M& p. ^: F' _" g I8 ~9 R" q: i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???& K( A2 M6 P( J- ~$ L+ e
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????8 ~+ z& o% `8 [9 K' U6 y8 L
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2.这是request的程序: K T' O9 n" K
// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's
, I/ w1 M' ^$ B9 p9 `// type flag to indicate the fact that this variant holds a BSTR. Place the
( {/ n$ F; K O, Q0 v6 Y% K! ^// BSTR into the variant structure.
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7 D* ?2 o7 O9 T) X requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 e! a0 r0 F% m" X( O
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 r6 L' Y5 Z, u6 s( j
VariantInit(&requestVariant[0]); 2 s4 u) @; c# ~% y9 b0 w
requestVariant[0].vt = VT_BSTR;8 L1 \& U% _3 p: x1 ]: A
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");3 O: J. s0 |0 s( r9 g9 n: z. |& ~
VariantInit(&requestVariant[1]);
; G8 E6 l, Y( W( ?4 R6 }4 b1 I requestVariant[1].vt = VT_BSTR;
- a5 a6 g" G* U" M6 i3 Z requestVariant[1].bstrVal = topicStr;2 P+ p+ s6 e; ]0 w0 B" h K5 `* f
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// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;
! r8 I/ q) X @" U6 j5 K d. u/ [ dp2.cArgs = 2;" T4 h7 H4 b, _" b# s
dp2.rgdispidNamedArgs = NULL; h5 c* c' f/ d" Q c8 x
dp2.cNamedArgs = 0;4 ~1 i6 z3 t$ h5 ?& v& H
A/ |" `: R h
var.vt = VT_EMPTY;( h5 |5 @5 J- \ P8 x
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
- y- d# p: {; E9 Y, Z4 O& Y requestID,
! R! H1 V" R8 X6 i IID_NULL,0 ?2 _' G1 H& a( M
LOCALE_SYSTEM_DEFAULT,
4 Q. \8 U* I/ X1 d& y' x DISPATCH_METHOD,
3 c% Z1 u/ q8 ^/ J1 N, I3 }; p &dp2,
6 X0 w2 v) l y &var,5 J/ O6 u, j2 P
&ei," R, @* j2 A8 y& O* J: \
&uiErr);
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% j' Y. I8 [! k SysFreeString(topicStr);( z, Z. i ]2 E! s. y6 N* c
SysFreeString(itemStr);
2 d" U6 \/ O4 b* g2 i请问该程序是获得extend里面的哪个值?3 z. A5 }% D* O9 ~
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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