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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:
" x# l1 F/ ^# T' Y8 oName = (WCHAR *) L"Poke";0 `/ v8 s p3 w& \. I: O! }
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hr = m_pDisp->GetIDsOfNames (: m$ ?' p9 I U6 [6 k+ W2 h* x
IID_NULL, // reserved
, N% V0 J% S0 N &Name, // Array of names to get IDs for
e7 P4 C$ w8 z4 k( z 1, // # of names in the array
) r* |: I/ u3 j, s3 T5 [( }+ } LOCALE_SYSTEM_DEFAULT, // System locale, P$ z/ \+ j7 [' u4 N! f' N6 ~
&pokeID); // Array of IDs to fill on output7 Y( c7 @/ M& F6 Q" N7 x: `- ~
$ S- y5 W. R/ E, ?( J+ y2 s
if (hr)+ s* s7 @+ o$ E. \" ]
{
2 Z, M+ E, k4 U5 ]8 Z3 R8 U MessageBox ("Get Poke Unsuccessful");" `* U( a4 Y' T; ]( v' e. Y
return;
6 r$ b% j i$ ^: k4 h' I }
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0 G2 c7 s( D" a5 L7 f! [& W/**************************传递数据给extend**************************************/
p0 Y( _% f! D7 t6 |: {1 u pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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1 k4 ]; f/ z$ z3 r: |2 k valueStr = SysAllocString((WCHAR *) L"1232");+ l& J1 [) K2 P
VariantInit(&pokeVariant[0]); 3 b* w$ E. f) j8 o
pokeVariant[0].vt = VT_BSTR;5 E8 y' f; A3 w$ _( B* h
pokeVariant[0].bstrVal = valueStr;: m: d: H7 z& [0 k
# Z$ K" m8 c5 O! M+ U+ `% t- k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( @8 w. Z) {' ^% k! D
VariantInit(&pokeVariant[1]); ' ~* Y3 i, B0 j1 B9 ^
pokeVariant[1].vt = VT_BSTR;3 I2 \$ X4 _+ L' R$ v
pokeVariant[1].bstrVal = itemStr;' c3 H# X) s8 b
* L7 u$ d# u8 l topicStr = SysAllocString((WCHAR *) L"system");; o- D9 w/ \1 e p' {" \! Y9 ?
VariantInit(&pokeVariant[2]); 3 q, H& \* v7 G* r4 n3 j. u6 r
pokeVariant[2].vt = VT_BSTR;
2 D8 d/ G3 [- J, V/ e pokeVariant[2].bstrVal = topicStr;
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- b- B1 m0 `4 W5 T8 l// Set the DISPPARAMS structure that holds the variant.1 s, v6 G) G% o' f4 N1 J2 H
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dp.rgvarg = pokeVariant;
! d' i; v1 P- y; z3 a" l* X9 q/ {# z dp.cArgs = 3;
1 \- C6 y6 E) R dp.rgdispidNamedArgs = NULL;
1 P8 T+ R- n; @6 Z$ b1 `2 z+ U) c dp.cNamedArgs = 0;$ z. v3 A, p% L( V& O
; q" M" Y% o* p( _// Call IDispatch::Invoke()4 P( x) c* s& O6 e
8 y7 R/ C' W5 r6 i& g% n hr = m_pDisp->Invoke(
. G5 F& T7 K+ T( Q5 `1 E3 V pokeID,
* h/ ?: ~$ \- s# e IID_NULL,
x& p) l3 {$ z1 s) f LOCALE_SYSTEM_DEFAULT,
/ P1 h" \) l7 d* z4 x5 I DISPATCH_METHOD,5 u# |5 [* {- O2 `8 K
&dp,/ t/ z+ B8 J7 C w: |5 H
NULL,
! b# v; e3 T, D% ^) y: p &ei,
2 f6 V, z/ S3 { &uiErr);
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SysFreeString(topicStr);
* T7 J( ^7 d" h7 h( [) [ SysFreeString(itemStr);
' T! _) f$ C( x* E4 A- G9 ?# t SysFreeString(valueStr);
% U. i) G$ e4 P$ j* ~. l% m4 s- A% C# M8 _6 ^# j
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???
" ]' o4 L# f! Y; C$ b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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! L0 r# `$ K9 l$ F0 J( S3 A2.这是request的程序
1 _: B! c& O1 @// Request a value from Extend
1 s( `- q: b" i& \$ Z5 B//
( A) b- ?7 I; p( u. K. ^// Initialize the variant that will hold the BSTR. Set the variant's
) g- Y% G8 p& a w/ L- s// type flag to indicate the fact that this variant holds a BSTR. Place the
7 G0 x- P" _5 `6 g5 P// BSTR into the variant structure.4 m$ M; ?0 A# s/ H3 T6 }
6 S$ D6 i1 U% C) T, Q" `4 N requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ t/ { j: p0 G, C: s* n2 f
* b# [; X& F! h0 R itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
/ H. q4 F' a) G0 f VariantInit(&requestVariant[0]);
: i- v5 O' K+ o0 H requestVariant[0].vt = VT_BSTR;
0 T& v( K4 j9 h0 z: w3 s requestVariant[0].bstrVal = itemStr;8 b# j E F3 d4 I) i" t
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topicStr = SysAllocString((WCHAR *) L"system");% Y* f- k6 G+ @! e; B( r
VariantInit(&requestVariant[1]);
3 I+ h1 ?9 d% x6 j' ]8 H% P d requestVariant[1].vt = VT_BSTR;
. e+ r3 b$ A8 d) S1 R requestVariant[1].bstrVal = topicStr;
7 L: L! S0 e" z9 Z- T( v
! s; I) N1 o* @. k// Set the DISPPARAMS structure that holds the variant.
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& |8 u5 _, f/ l% A; v! Q dp2.rgvarg = requestVariant;
3 B9 Q& a9 D0 b8 c+ `, E dp2.cArgs = 2;! o% |6 ~, h6 O1 w5 ^
dp2.rgdispidNamedArgs = NULL;
! h7 c& Z2 n8 `8 K% ~2 J4 l, p dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;$ J1 B; V1 }! P
& v3 I# L: Q* y. i! r6 ?- O; ^// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(" n9 m8 ]' d+ a; e: s3 t
requestID,0 r+ i5 C# V- i, p# q
IID_NULL,
3 i+ z( ?+ ~- |4 E9 E LOCALE_SYSTEM_DEFAULT,* S& a7 R' X8 Z# |6 ]) W
DISPATCH_METHOD,# k5 B [. K8 S/ o) N$ h* v. w
&dp2,
7 I7 ?4 {: |4 e% C3 ~$ j0 Q$ A% M &var,
- P' c8 H5 N% a' Y: s& ?2 \ &ei,
) p3 ]1 L8 |6 B2 p &uiErr);, I6 G8 e) p3 n- F2 ?2 d6 t
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SysFreeString(topicStr);5 j' F; \# S5 Z; K8 a, ^& X
SysFreeString(itemStr);
& a. M3 u* {9 N$ ?1 b请问该程序是获得extend里面的哪个值?
( `( J! n* b) Q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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