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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:
, J9 e4 i% f; j/ \Name = (WCHAR *) L"Poke";$ [+ D |+ t* o) X& ~ u
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hr = m_pDisp->GetIDsOfNames () d) z- [' x p9 C, _
IID_NULL, // reserved( D! ~5 R/ b2 q
&Name, // Array of names to get IDs for, H6 u; ~0 E; r' U/ U6 r! k
1, // # of names in the array* |: d$ W0 B/ l* M- D& x+ s) T: m
LOCALE_SYSTEM_DEFAULT, // System locale
+ H* M/ e0 G! B9 y &pokeID); // Array of IDs to fill on output# |! C: u& @4 C. L z1 d: }, M! G
; V2 R1 y6 t! K! _4 R if (hr)
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MessageBox ("Get Poke Unsuccessful");1 t: R2 p/ H# _: g* Y5 v
return;
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# q2 o8 T4 ^( G+ s/**************************传递数据给extend**************************************/4 k: D. w: O$ L1 @+ Q
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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, ]/ L7 l0 R% r8 L valueStr = SysAllocString((WCHAR *) L"1232");- v; ^2 M& {: t# e( n& X3 M
VariantInit(&pokeVariant[0]); & j2 r8 J1 u, I4 R# c) e- q
pokeVariant[0].vt = VT_BSTR;
& e f) d% P* Z6 | pokeVariant[0].bstrVal = valueStr;
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* H- z$ V% n% s/ X/ s, u itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
, ]+ ]3 A7 Q: D" Q0 @7 @/ O: u VariantInit(&pokeVariant[1]);
* G6 e8 k# Y* R8 @2 L pokeVariant[1].vt = VT_BSTR;
% V( e: s- Q' u* W5 S2 H8 a pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
. a4 k1 Z3 t0 K& n6 B VariantInit(&pokeVariant[2]);
5 S' s* H `9 Q9 U. O$ g: C0 l pokeVariant[2].vt = VT_BSTR;! L1 \$ I# p* }
pokeVariant[2].bstrVal = topicStr;
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' Z8 c9 { H0 J0 C) L// Set the DISPPARAMS structure that holds the variant.7 w& @4 ]0 @2 P+ z6 D+ l. @
. S* K* [( I. o- t a6 n dp.rgvarg = pokeVariant;
/ s: I" i4 K* x, R dp.cArgs = 3;
) O7 K: E- T8 t! }* j- | dp.rgdispidNamedArgs = NULL;
3 t; h# R* A @% R% r dp.cNamedArgs = 0;' Q4 o n* {+ W$ `8 [- o- Z: t# e
% Z. d4 h) k P// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(9 c/ H8 r0 ]6 o) |$ N
pokeID,
. ^4 K& U& {4 Y# f ?! [1 a5 ` IID_NULL,
/ L, ^" ?- G/ i0 @3 z& T$ Y LOCALE_SYSTEM_DEFAULT,
1 ?, |3 q$ k+ D4 r" Y/ ] DISPATCH_METHOD,, T$ z9 y! d* p
&dp,
) B; c8 S' x* q; K$ n NULL,
& _9 {4 z6 a3 y3 O2 z# i &ei,
T8 u% V- T$ ~; B3 z# Y, q) } &uiErr);
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SysFreeString(topicStr);
" ?- a% q( e; ]! N6 T SysFreeString(itemStr);0 I9 o/ [1 U! O2 t) i
SysFreeString(valueStr);/ w; d' E* F2 j
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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 a5 d; d9 j9 ^$ W9 g' T, S( ^
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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$ r( x z) }6 c* z( [( A" u J2.这是request的程序
) s. T! `6 @5 `. e' R, \$ G O// Request a value from Extend
4 F% o" Y: z8 @" }6 ]* F4 T//
) @3 h/ f& U: g4 V" @1 ^6 g3 H2 W// Initialize the variant that will hold the BSTR. Set the variant's$ c4 U4 Y! ~$ ^1 ?
// type flag to indicate the fact that this variant holds a BSTR. Place the
6 R1 ^* |) X7 `0 O// BSTR into the variant structure.
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+ J& U* N2 q" R& r requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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6 H: }3 X+ k' {# P) Y/ j0 g itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% N. v4 U; V! L F; |* U) d& K
VariantInit(&requestVariant[0]); & O& U# a6 M: T/ ]
requestVariant[0].vt = VT_BSTR;
3 n! o. T* U9 K, b% e requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");- c# L4 R' u# R# g
VariantInit(&requestVariant[1]); 3 {% f x8 [. v* u2 ^$ E' e
requestVariant[1].vt = VT_BSTR;7 J0 B7 U$ {2 {$ C3 q
requestVariant[1].bstrVal = topicStr; O" B, C6 h: K+ Z( p- `0 ] ?
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// Set the DISPPARAMS structure that holds the variant.
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& c+ E6 R+ `/ i7 A2 h5 L% T dp2.rgvarg = requestVariant;/ O" u5 R' V" O
dp2.cArgs = 2;8 |/ a! y$ D+ V' h
dp2.rgdispidNamedArgs = NULL;
z: t: w2 l* v6 H" h% i# [* D2 w dp2.cNamedArgs = 0;$ {7 e: c; ^) y4 c8 e" L, S% ?
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var.vt = VT_EMPTY;( }' o- r# L0 h% |$ \1 T7 [
2 V8 v& J5 y7 g3 C' {// Call IDispatch::Invoke()3 O( e4 I0 @: ?4 o/ k4 c# K
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hr = m_pDisp->Invoke(
8 o8 S4 v# ?: ^( @% K requestID,
4 H' ?+ w! o9 [+ k% X IID_NULL,( m! P7 w+ l" Q' i
LOCALE_SYSTEM_DEFAULT,
: q& e2 s3 |. A# R; h; X* r4 B; T DISPATCH_METHOD,
0 A6 j! J; {- c) E &dp2,9 T( i7 X( Z5 j) K! Y& G' N( P. l
&var,4 P' \! {" Y& m
&ei,
8 w- s6 y! l0 J4 Y! v &uiErr);3 f t8 C$ P- _& _2 Z$ y
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SysFreeString(topicStr);9 Y. \; ?0 a6 ~' Y. ?: |. X
SysFreeString(itemStr);
* x- \) r$ |, J+ G. ]3 C, w Z请问该程序是获得extend里面的哪个值?
0 D+ X, I* j+ X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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