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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:% n, J% \( p6 }; A: R: Q
Name = (WCHAR *) L"Poke";* |5 s: {& t8 e% ?, G' O0 E0 V( i
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hr = m_pDisp->GetIDsOfNames (
# J+ } R6 D7 D; _5 M- \, Q IID_NULL, // reserved
# C3 R$ X! k$ w( ~8 H, I &Name, // Array of names to get IDs for0 W4 e: i0 w1 Q) ?4 s
1, // # of names in the array
: _# K# ^) g9 O- w LOCALE_SYSTEM_DEFAULT, // System locale5 p D2 y. N. s4 N7 {
&pokeID); // Array of IDs to fill on output( Y: p7 {# Y0 f5 I
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if (hr)4 P' J' t8 A8 {: S/ F4 |
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MessageBox ("Get Poke Unsuccessful");8 i' N# x3 r# F* T! [
return;
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$ j: k+ }8 Z; c: ^: R( s/**************************传递数据给extend**************************************/3 Z# L1 D1 C8 w
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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" L x) d1 K" U' | valueStr = SysAllocString((WCHAR *) L"1232");
8 y9 q7 J: P- C. o* T VariantInit(&pokeVariant[0]);
! O6 N! {8 ~- K. q pokeVariant[0].vt = VT_BSTR;8 t+ f' K$ s0 z; _
pokeVariant[0].bstrVal = valueStr;
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( I( ^9 }0 q9 ^/ Q* G2 f( Y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& Z3 D5 h6 P1 B. f- \
VariantInit(&pokeVariant[1]); " s0 v! F3 D5 ?6 d$ O0 G
pokeVariant[1].vt = VT_BSTR;9 C2 @& k+ z9 B- t$ l' |9 d* r
pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system"); J7 ~/ Q, ^) b
VariantInit(&pokeVariant[2]); & V" L) g$ g7 `4 e: u0 [
pokeVariant[2].vt = VT_BSTR;* V G7 g [" V* ^7 n
pokeVariant[2].bstrVal = topicStr;0 m. ?& S- r. b( N9 b) ]+ R
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// Set the DISPPARAMS structure that holds the variant.. Y3 L. J1 h- J8 F7 t
5 I" _1 t9 |4 S0 e. X/ y dp.rgvarg = pokeVariant;. Y% K6 `" @6 U8 U
dp.cArgs = 3;( _2 Z7 g; a/ ]6 w
dp.rgdispidNamedArgs = NULL;3 o9 a! @- J) L/ S% H, s
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()$ M$ u. i6 E. Z7 n* H- O5 j; N
: G8 t$ ~. k0 N3 Z5 o, E hr = m_pDisp->Invoke(
6 b( D8 B& E3 m) E pokeID,# w3 k7 Q" B+ T) L3 R2 `7 p
IID_NULL,
* J$ i5 H$ {" S, [1 x1 r' p LOCALE_SYSTEM_DEFAULT,9 ?3 w) V; |, C# [. y2 C; j
DISPATCH_METHOD,- t5 |) Y& N* y9 h2 E+ u9 G! l
&dp,6 }) l2 G9 B! t2 U; N* U- z
NULL,
2 I2 q: g9 C! Z) h* ^/ ^ &ei,
7 Z( ?& i- b& _8 m; S &uiErr);
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, k% l' ]! c7 } SysFreeString(topicStr);8 U: u1 h: X! T/ R! w0 n: |. s4 I
SysFreeString(itemStr);8 _, @) F5 g0 R
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???8 ]' L- Q% j i5 S! P
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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# n9 {1 \' U$ }# e4 h) E2.这是request的程序" [+ g a( Y6 z+ Y% U
// Request a value from Extend. m! ^8 Q# S/ S
//4 o3 A4 H9 h2 ~/ C( O
// Initialize the variant that will hold the BSTR. Set the variant's2 g0 d! P( N4 \; R' T2 ?( D0 |3 L( n
// type flag to indicate the fact that this variant holds a BSTR. Place the
/ a# n) R1 Z" K// BSTR into the variant structure. W0 a% `3 k, j/ I0 l/ T
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ O' @4 n) X. V' b
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
# n3 g) u6 I4 p- j3 `. r+ F VariantInit(&requestVariant[0]);
0 y* L1 K) O! j' g requestVariant[0].vt = VT_BSTR;% Q7 N% ~) @( W k# M
requestVariant[0].bstrVal = itemStr;8 ?8 J; A& s* p: U4 `) H/ C
7 h# c9 O) t7 h( b topicStr = SysAllocString((WCHAR *) L"system");' ]/ _! e. T6 b6 `0 }7 s
VariantInit(&requestVariant[1]); ) D( |& s0 ]3 s- _" ^: v) ]4 b
requestVariant[1].vt = VT_BSTR;& f$ b5 g; {) Z# N
requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.7 L1 W; J, P% n
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dp2.rgvarg = requestVariant;* a* }1 z$ r9 l1 S+ Y4 R0 ~2 f
dp2.cArgs = 2;
& R2 g9 C9 S8 T2 e0 H/ g dp2.rgdispidNamedArgs = NULL;5 F1 J% J; B J, p! v) r
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()+ \1 y. _1 v+ B2 L o
9 a6 S' I! w0 y' b$ Y hr = m_pDisp->Invoke(
( x( q$ o$ Z* ` requestID," R. w% [. x% r! p- ^, s% B
IID_NULL,. `7 c! B- W; u5 ]+ B( {
LOCALE_SYSTEM_DEFAULT,
/ C% T- S% |# ` DISPATCH_METHOD,+ S; y8 M' a' e0 K2 [; T
&dp2,4 |/ m3 {3 f# o! ]7 ~4 B
&var,8 o2 x+ @% S% T7 w
&ei,
$ M$ c% z( z5 L+ F. N &uiErr);
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5 n4 [/ ^& M. B7 e% p SysFreeString(topicStr);
! W4 q) Q' G" Z2 z" B* n' ` SysFreeString(itemStr);
! g# V, t: O D' O, Q请问该程序是获得extend里面的哪个值?8 q1 j/ S- [2 |7 e) a1 p% ]7 |* z
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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