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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:
% W9 u1 M* V8 w) WName = (WCHAR *) L"Poke";
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0 [' ~! r; O* D* X9 ~" Y hr = m_pDisp->GetIDsOfNames (" Q* {, Z( O1 I) C% n
IID_NULL, // reserved' Y4 y y# _) ?$ |2 V. g; \
&Name, // Array of names to get IDs for
! l: @. r4 m& J 1, // # of names in the array3 }. b. f0 q. S& W/ z: @
LOCALE_SYSTEM_DEFAULT, // System locale
( W, \: K0 K' J0 i; E& S+ h &pokeID); // Array of IDs to fill on output3 ~/ F/ ?+ T% y% _
' \8 g3 e1 x. a% P) ? if (hr); w" p7 l- h& W, ~; j4 M
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MessageBox ("Get Poke Unsuccessful");
- Q0 N! V$ Q' ^ return;
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/**************************传递数据给extend**************************************/9 B9 t+ m6 D9 K& c
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");
% h+ x4 |2 T, \) ?, E4 C% j# j& J VariantInit(&pokeVariant[0]); 5 Z5 w9 s% w" _8 C( U9 I
pokeVariant[0].vt = VT_BSTR;" l. m# M, R( C; x2 r: p
pokeVariant[0].bstrVal = valueStr;+ q7 Y$ J; E H, v- [. h5 Q
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) F8 h6 P' b( g/ [) w# f
VariantInit(&pokeVariant[1]);
8 L/ X1 i1 _' `. i( ` pokeVariant[1].vt = VT_BSTR;6 B8 j; T# P4 F
pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
' [0 {* f# J2 `4 m) E+ t5 P, K VariantInit(&pokeVariant[2]);
+ l- L$ m6 W" D7 e# _# y; c pokeVariant[2].vt = VT_BSTR;( E! E3 N7 p2 O6 l
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
& v p+ j r4 G9 d8 t' p0 ~ dp.cArgs = 3;- @% i0 O3 H( Q C- G
dp.rgdispidNamedArgs = NULL;( W9 g H# H# t9 u
dp.cNamedArgs = 0;1 ?' g# h6 X( ? z
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// Call IDispatch::Invoke()1 I. v9 B0 J/ I+ M+ Y
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hr = m_pDisp->Invoke(/ k# Y$ F( {4 R3 J, B
pokeID,1 Z9 o3 `1 \, N1 J6 `
IID_NULL,
5 b) T2 P" ` _ LOCALE_SYSTEM_DEFAULT, ^9 t% Q, d# }4 x) M# H6 m
DISPATCH_METHOD,, u- z8 E; v( \7 e
&dp,
* h6 o* h: y# b2 K, }% ?, _ NULL,$ n2 p" s* g3 C8 x% E; T' P7 n
&ei,
! p; x+ @) ^2 J; L2 f0 l% B &uiErr);
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SysFreeString(topicStr);, P) q2 q) g$ n# ]3 I- {
SysFreeString(itemStr);% _& M. i& _% n$ B& Q
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???
4 D' t! J& F9 V; 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????) H0 X/ ] n1 ?
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2.这是request的程序, o. q% P" R+ e3 s" y
// Request a value from Extend/ H% X) t4 B5 e. q+ _9 r
//
' L: O4 L. n- x/ `! G// Initialize the variant that will hold the BSTR. Set the variant's
1 I! X8 z, l0 C# y3 E& P( K// type flag to indicate the fact that this variant holds a BSTR. Place the
) w0 z1 D, h0 k1 Z8 R// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 N) q+ L" w+ ~& d) F0 t
VariantInit(&requestVariant[0]); * l7 f4 e, r3 \0 N
requestVariant[0].vt = VT_BSTR;" L" J9 S) T( k5 V3 m2 K: G
requestVariant[0].bstrVal = itemStr;% J( x0 p) b2 Q* I
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topicStr = SysAllocString((WCHAR *) L"system");" d: E9 }% i' \4 n* ~
VariantInit(&requestVariant[1]); ' B! a* R& u' c( f9 l
requestVariant[1].vt = VT_BSTR;
7 ?4 W* B0 O8 K8 W3 }2 T+ E requestVariant[1].bstrVal = topicStr;
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/ \6 [4 J2 j, \) K/ y2 i" b% d0 H3 {// Set the DISPPARAMS structure that holds the variant., g+ I+ m* L9 ^. T( k6 n
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dp2.rgvarg = requestVariant;/ Z( U* t% b* U$ B; }* T
dp2.cArgs = 2;
T% b& t% U0 _# W9 Q% l dp2.rgdispidNamedArgs = NULL;
* O2 e, L$ a# W3 A5 N% A: [: {( T1 ` dp2.cNamedArgs = 0;
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3 p8 T" ~2 W7 q3 W+ T( [ var.vt = VT_EMPTY;0 ~5 X7 G$ [& N) D2 C# b
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// Call IDispatch::Invoke()# t5 l8 V, Y5 k8 J4 T3 d
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hr = m_pDisp->Invoke(
, O+ V% Y- F: _# `4 ^ requestID,- ^( u* F2 n6 h0 {; ~) q, }
IID_NULL,! B7 s" z$ S- ~2 ?. V9 b
LOCALE_SYSTEM_DEFAULT,+ m& ?. N: ]1 T! V( c. ]& P- M
DISPATCH_METHOD,
! Y3 v7 j+ ^. o &dp2,
6 Y& F# g, r5 v7 L9 @0 P: h- l &var,
0 O2 U. b% J$ A &ei,
s' c; V* s9 \$ ]+ R &uiErr);4 ~- A0 n, R/ N' C1 a5 ~8 F+ q) p
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SysFreeString(topicStr);
0 ?1 ^) y7 e8 |' z SysFreeString(itemStr);
+ P" U; R7 x: l* m8 O请问该程序是获得extend里面的哪个值?' F" g; m, O$ e9 X& }" V9 W" J
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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