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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:
% y! o1 X, }6 ?/ [2 v6 WName = (WCHAR *) L"Poke";
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5 o* \) F3 Q5 [; ? hr = m_pDisp->GetIDsOfNames (* [& t8 K6 }/ c( t4 Z
IID_NULL, // reserved& J0 W6 ]" V; s5 }) q! n
&Name, // Array of names to get IDs for7 V; {% a; q* `. c; o
1, // # of names in the array$ d3 I6 R! D; t+ U6 Q5 ~
LOCALE_SYSTEM_DEFAULT, // System locale8 m3 l- e7 a0 \, b) O. g
&pokeID); // Array of IDs to fill on output
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; A" Z4 q6 n/ _2 C/ e) P! z if (hr)
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MessageBox ("Get Poke Unsuccessful");; N: ^4 g" D% S. b
return;8 `1 R H5 e# P' T! S, t
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/**************************传递数据给extend**************************************/
" T" J! u5 n/ @$ O0 ?/ z/ E pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);" A, _# r }' H0 T7 k# A& `
, d4 E3 p8 m) M& F. N1 N valueStr = SysAllocString((WCHAR *) L"1232");: B: Y! I% n8 ~
VariantInit(&pokeVariant[0]); & x `0 `3 R# N/ ]3 r" @; P2 M
pokeVariant[0].vt = VT_BSTR;( A& M1 w- T* U
pokeVariant[0].bstrVal = valueStr;& N, c4 M" `. f4 \: j7 m/ Z
$ Z- R9 [# v* S% I+ |8 N5 U itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
9 o: A7 E$ z. \, E2 K VariantInit(&pokeVariant[1]);
- Q7 b& W: r1 j1 l- t8 G3 [+ } pokeVariant[1].vt = VT_BSTR;! l9 a6 f' S' l
pokeVariant[1].bstrVal = itemStr;' N8 {; e3 l4 N# C/ \
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topicStr = SysAllocString((WCHAR *) L"system");
- ~0 l' V# q1 ^" d1 m4 Y VariantInit(&pokeVariant[2]);
7 I* ?- W* ~2 ~0 c9 x7 y pokeVariant[2].vt = VT_BSTR;
1 r+ D6 W. H5 ]$ s pokeVariant[2].bstrVal = topicStr;$ U2 M$ h H& o4 z& X7 d' z. ]* A. R
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// Set the DISPPARAMS structure that holds the variant.5 I* e6 D; |. S+ q# h! }
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dp.rgvarg = pokeVariant;
2 L8 ~- d/ U; B. @2 n dp.cArgs = 3;
- q7 k0 f4 w7 h2 U1 V dp.rgdispidNamedArgs = NULL;
! [; N& E4 ?# C; l( w dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()& N9 C0 \& A1 x* e, o9 e
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hr = m_pDisp->Invoke(3 S' g4 a5 G4 |6 \
pokeID,
" C( D5 g2 S8 F3 ?7 t3 t IID_NULL,+ F2 ?( O' }7 c9 }
LOCALE_SYSTEM_DEFAULT,3 f: z) [+ h( Q
DISPATCH_METHOD,
0 f J- B" V$ y7 p# S* z0 }; Z& D, G, K" F' S &dp,
: y8 Z* }+ `: E9 J NULL,
2 ~- [6 E0 H; y1 I8 e &ei,8 T# J% F: J. R7 e- c* u* W5 M4 ?
&uiErr);. F5 z6 b' Y( }$ ~
9 x& h/ @: n7 C0 E& o& m0 D& I SysFreeString(topicStr);
1 B% a+ l- w8 r% x SysFreeString(itemStr);
+ u& P4 t3 R6 X7 y# b1 g 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???& [( F1 a2 L* l
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: @3 J K& J; S8 ^ A4 g: c
// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's
1 {# {! k9 |, t; G8 V// type flag to indicate the fact that this variant holds a BSTR. Place the
$ y; E5 Y9 ?8 r. e// BSTR into the variant structure.8 ~6 I- u9 ]) \. Q. X
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! F/ U( w6 ~9 r1 R; s
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
8 a+ ?! I- O: j5 o7 V VariantInit(&requestVariant[0]);
7 G+ }: R; j+ [. ^6 o7 }9 d2 l requestVariant[0].vt = VT_BSTR;, Y( b/ U$ {( B! ^& X2 \
requestVariant[0].bstrVal = itemStr;* s* ], d( E4 K+ F! b& s
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topicStr = SysAllocString((WCHAR *) L"system");% W. H S6 V" C% }6 k
VariantInit(&requestVariant[1]);
2 x) J5 C$ w, ~' G- b requestVariant[1].vt = VT_BSTR;
2 n A) G' U2 \* z5 u; h# t0 |/ i requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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+ ], r- A9 s* o# Q" G4 R, b dp2.rgvarg = requestVariant;4 X/ R. R) Q' z T# i
dp2.cArgs = 2;
5 F& m4 Y _% q! M. ^ dp2.rgdispidNamedArgs = NULL;3 w2 x$ v% B1 R: c& e% T6 W, t
dp2.cNamedArgs = 0;) z, o# f1 a6 ]
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var.vt = VT_EMPTY;
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7 H6 c; a ?' _* B// Call IDispatch::Invoke()5 n, a5 G! t- D5 c4 \- B# Y( W, Y
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hr = m_pDisp->Invoke(
9 O. m' f$ `9 O. u% h requestID,
6 G% y- V& g3 h0 {$ H9 f4 V. m; A( p IID_NULL,
- p l: l( e0 s LOCALE_SYSTEM_DEFAULT,0 ?& G3 b3 O. y- s' r0 i! ~
DISPATCH_METHOD,# c; E) J/ q( p+ L/ i% _! Y4 X
&dp2,
4 [1 h3 w0 ?% H &var,
0 a! I+ v: B% F' Q% r &ei,
/ g/ L( [, E& v- f, L' g6 ]+ R0 l4 w &uiErr);
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SysFreeString(topicStr); Y8 h# w; h! _& k
SysFreeString(itemStr);
( V2 e* J' {9 q3 n6 X0 U6 E. J请问该程序是获得extend里面的哪个值?: q5 D: J. v$ p% 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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