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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:
/ S' u; ^. n9 F; D8 V; l* fName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (! a. u6 ], f( {+ m; Y( U7 ~
IID_NULL, // reserved+ P* D) l1 L( r* e- Q/ E) ^
&Name, // Array of names to get IDs for
) a. H$ V0 t. k j/ y( ]' k4 Z 1, // # of names in the array
0 {. ?8 _+ H# I7 D' A LOCALE_SYSTEM_DEFAULT, // System locale2 u/ E8 W V6 w/ F( W7 Y
&pokeID); // Array of IDs to fill on output
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9 T/ f/ G. ]2 g& c) |& |' @( I if (hr)
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% |5 c) R6 N6 C, |+ |( P: l# E# J: r# I MessageBox ("Get Poke Unsuccessful");& b) ?4 j) O+ x- t$ a6 J
return;. }9 E' h0 K% \
}
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/**************************传递数据给extend**************************************/
8 R% I$ i; E6 m" \ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");
+ A! T2 a; r) H; u8 s) Y VariantInit(&pokeVariant[0]);
+ X- n7 t7 q9 P! Y( V3 P. m, E7 i pokeVariant[0].vt = VT_BSTR;( j2 b9 {+ J; R
pokeVariant[0].bstrVal = valueStr;
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8 t) t& V/ L: R7 M2 x) i itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) L; g7 ] J% |- Y* L
VariantInit(&pokeVariant[1]); ( P3 b3 g3 q! O9 s+ a) i7 W( |$ z
pokeVariant[1].vt = VT_BSTR;; K$ R6 C/ B2 a3 h# p* E* p# b" ?
pokeVariant[1].bstrVal = itemStr;2 @0 j$ ~8 w; t+ p
- v; c9 Z( b* p3 Z- M! v topicStr = SysAllocString((WCHAR *) L"system");6 ?) D6 v1 ^. K: ?( j1 o. o
VariantInit(&pokeVariant[2]); . e; m7 e! I G! ~$ y
pokeVariant[2].vt = VT_BSTR;+ {. j! z9 e' ], x8 z' I
pokeVariant[2].bstrVal = topicStr;" n$ Z& [9 ]) \8 H& H0 |
: b9 j+ S9 H! h: w// Set the DISPPARAMS structure that holds the variant." g. S, i2 A; w% w% c
3 _/ B* t+ x/ A7 B/ J; Y dp.rgvarg = pokeVariant;
' T, C) N" }# N& j* T0 L dp.cArgs = 3;( Y* [' F+ X/ `1 X6 q: J) k
dp.rgdispidNamedArgs = NULL;" I. m2 I& s0 `, \
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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) {: `7 p9 [0 K% I hr = m_pDisp->Invoke(
0 e* g/ `- w5 t8 h1 | pokeID,7 }4 V# P/ m0 o; g! R$ e
IID_NULL,+ D) Y3 r! ~6 {( a7 D8 G
LOCALE_SYSTEM_DEFAULT,
# j% ^/ \" b) B: K DISPATCH_METHOD,
- v3 J2 C; Z% a3 L& g$ { &dp,
6 Q- M% V: n8 A) p% n0 n% T NULL,
+ b x! Q; Z& D4 f1 }0 [ &ei,
) o- T9 Y; B5 _9 e &uiErr);
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, u3 M3 Z/ k$ U1 v SysFreeString(topicStr);- C& Z( Y0 s& Q) ~) Q3 F
SysFreeString(itemStr);, D5 j: a) u. L6 L3 m7 r9 \
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???0 w, h& i* u B# \3 T, I: q
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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0 P) @7 {* e4 l9 I) s7 ?2.这是request的程序
0 D3 ~: H8 {: B// Request a value from Extend% E, ?: u6 y/ m* T3 a
//
- o8 D0 X8 ]& p/ g, n// Initialize the variant that will hold the BSTR. Set the variant's
) ^: I: l/ d6 v) q// type flag to indicate the fact that this variant holds a BSTR. Place the) q6 e) ?5 n7 N; Z2 O# g
// 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");
- i+ k2 j L3 _% o+ e7 g+ ] VariantInit(&requestVariant[0]);
( l2 q5 |- `7 u$ s/ _# X requestVariant[0].vt = VT_BSTR;
7 c, h5 `- w V. R6 f; P requestVariant[0].bstrVal = itemStr;
% O1 t* A( c# Z+ [& }
3 F) c& t! o M topicStr = SysAllocString((WCHAR *) L"system");' V; I' F" o1 y
VariantInit(&requestVariant[1]); " Z/ t' Z9 P. V+ Z
requestVariant[1].vt = VT_BSTR;( `4 K2 t# {5 ^/ |( C
requestVariant[1].bstrVal = topicStr;
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* h) @2 ]9 @/ \' m- J# v* M+ P. X// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;, q1 K8 B/ D8 P( ?. N
dp2.cArgs = 2;9 K. R$ S2 }+ a$ h- C8 I( l; {( Z
dp2.rgdispidNamedArgs = NULL;
0 I- y6 {3 P3 v0 \* D6 U dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;/ b; r; T, Y) E2 K+ l9 R
% A& P6 Y( e4 h// Call IDispatch::Invoke()
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( L* S4 M9 `3 r hr = m_pDisp->Invoke() Z2 L' V3 Q. ~) s# |
requestID,
4 d9 V" L$ x; g0 T% J: f IID_NULL,
) T$ i: Z9 ~; @& x, y# ?3 | LOCALE_SYSTEM_DEFAULT,) l5 a Y/ @" V) y
DISPATCH_METHOD,5 Y5 k7 }1 w- ^" k ?4 I
&dp2,& Y5 o. K+ \$ d( |! ^! }- \
&var,! w* B z2 x1 i+ b! O
&ei,
6 I+ f' u. k; M5 c* ^4 H+ L8 ~ &uiErr);/ n) G( s# G5 F7 S- `% M4 L) ]( q- Q4 Y
( E7 f+ l* N- H$ s. s SysFreeString(topicStr);
. S* M# K1 B: K SysFreeString(itemStr);5 h* S8 V0 |5 A0 ]8 v. p
请问该程序是获得extend里面的哪个值?
3 l3 R* f& c4 I9 {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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