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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:
2 o B3 i4 [3 \2 ]* G+ BName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (
, X m$ Y9 J; o5 L, B& i# j H IID_NULL, // reserved
& `' L& W$ T6 | L* v! x2 ~ &Name, // Array of names to get IDs for
8 c& T4 [ k. F4 C5 ^8 J/ ] 1, // # of names in the array9 Q/ t1 h3 w( j: V/ f8 I
LOCALE_SYSTEM_DEFAULT, // System locale$ _5 M' h! ]& r' N: v; q- i3 M
&pokeID); // Array of IDs to fill on output
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2 E/ k3 m6 E a; q$ b: [6 z& d if (hr)8 v; u2 z( j o# P0 e7 s
{5 u1 K* b5 e# J7 T+ r
MessageBox ("Get Poke Unsuccessful");/ M8 R* N4 ` h2 g0 E% W
return;7 f$ n/ |1 o- H' I
}
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/**************************传递数据给extend**************************************/
% K- T3 P2 y+ S A' \4 q pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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# c6 Y/ G& _& n1 ]: v) G valueStr = SysAllocString((WCHAR *) L"1232");) p& J w9 m" B) T! V
VariantInit(&pokeVariant[0]);
. E. a* }% I$ \* M R$ A" d pokeVariant[0].vt = VT_BSTR;- m: k' c8 V; d) ^8 L% B8 b! v' L0 l
pokeVariant[0].bstrVal = valueStr;* r+ a" B$ ^" @
+ j7 \1 ~# Z2 i6 |# ? itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
9 K5 f; ~* k/ s2 k7 ]/ K VariantInit(&pokeVariant[1]);
3 l" J5 j! ?! V6 u4 u) n pokeVariant[1].vt = VT_BSTR;- _% ?( G- a- e4 v
pokeVariant[1].bstrVal = itemStr;
% ?/ K' d3 s/ i1 L" |7 y" n/ F9 ` m9 u* N' g' |
topicStr = SysAllocString((WCHAR *) L"system");
) Z$ T7 V/ w, @ VariantInit(&pokeVariant[2]);
" {& F. ^* I S3 p5 b* p! d0 n. O pokeVariant[2].vt = VT_BSTR;
# ?3 w3 V+ B& _, { pokeVariant[2].bstrVal = topicStr;
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* o8 L; S: @1 e; J# b// Set the DISPPARAMS structure that holds the variant.
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1 J2 g3 k' n' l/ W4 g/ ?! c5 k% C( o dp.rgvarg = pokeVariant;
) H$ f+ j9 ~0 Z dp.cArgs = 3;
6 R. u2 z9 Q9 d$ ? q5 ^' O dp.rgdispidNamedArgs = NULL;. G4 } V) s" v
dp.cNamedArgs = 0;
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& d9 o( r% W$ `& {* `! O' d// Call IDispatch::Invoke()
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, W+ _/ h9 y4 ^0 l) Q' t hr = m_pDisp->Invoke(
# Y4 g5 a8 M6 V: A# b pokeID,+ J! b1 [8 q U2 b" J% W! I
IID_NULL,& V. E2 {- I: s4 E/ A! T
LOCALE_SYSTEM_DEFAULT,) {* E+ w1 C/ ~- h* ]
DISPATCH_METHOD,
# _6 E8 P- i+ a) `! Q" } &dp,
8 g% E- z7 o7 D4 ~! m NULL,
/ J% A; y- V5 n$ B2 |) Z( L2 ?6 J &ei,' {0 Y8 Z! O, `: Z& d# X
&uiErr);( _& X) ]/ Y8 y. N7 W& \" `+ j# O
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SysFreeString(topicStr);( V6 H& i; L; l' }. K+ H8 ?
SysFreeString(itemStr);) _( J; j6 b$ Z" o2 O( q9 x
SysFreeString(valueStr);
5 |# m5 x7 E6 U) f; d: B' y
2 L$ v4 k- M& P% E* {' y3 a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??? I9 `, z- ?4 ^ p- s/ W/ b$ 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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7 m9 [: @$ {* p# N6 E: H2.这是request的程序( \+ f$ K0 a- B1 a$ m4 _: J
// Request a value from Extend
( W, ^# V f# m% O5 |- K//
b/ q3 D- N7 Z// Initialize the variant that will hold the BSTR. Set the variant's/ W* {" H8 h1 }' R: p9 h: W( c1 g
// type flag to indicate the fact that this variant holds a BSTR. Place the8 b; g+ Y4 d& z
// BSTR into the variant structure.
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: G+ g4 `; D0 Q% t1 @ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) U4 ]( i6 e* s8 \. k$ ^) w
VariantInit(&requestVariant[0]);
2 O1 ^7 y' y+ U requestVariant[0].vt = VT_BSTR;) Q1 C9 Q% w% [$ }6 C5 p! H7 e
requestVariant[0].bstrVal = itemStr;' j. s/ r3 ^6 e ? | }6 K
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topicStr = SysAllocString((WCHAR *) L"system");
! {& t! f5 c5 A VariantInit(&requestVariant[1]); & V6 c3 j4 d; l! S( _3 a8 c
requestVariant[1].vt = VT_BSTR;* F$ ]) Q$ J" j% [( i
requestVariant[1].bstrVal = topicStr;5 Z5 i' q6 X$ D& h }! _7 X% \
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// Set the DISPPARAMS structure that holds the variant.% q% I3 A8 K. u8 F) Z- z/ s8 w
! E1 _# u7 Y8 e2 t1 \ r dp2.rgvarg = requestVariant;* D7 L6 t. L$ _7 U/ z
dp2.cArgs = 2;. Q9 C" X5 I3 x4 M; {
dp2.rgdispidNamedArgs = NULL;
1 R. Y8 @6 Z4 L# O4 F( T! ` dp2.cNamedArgs = 0;6 d2 ^5 w" q& _0 p; t. q
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var.vt = VT_EMPTY;, j; d4 v; G; J) k! E" A5 X
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
" p+ g; u; A. T+ E& Q @* z requestID,
7 D2 {7 b6 ~3 g1 X1 u8 {" h+ N' d+ y. O! X IID_NULL,
. h1 p3 H; j( ^7 E' u- B+ [ LOCALE_SYSTEM_DEFAULT,0 ?' i0 b# ^5 @2 L3 d
DISPATCH_METHOD,
) H B: \; x- x6 c &dp2,
' P9 C0 u, h& E &var,' Z; z1 L" [) b' F$ I
&ei,6 \$ ]- ^, k' g6 D8 {
&uiErr);$ C) N. }" G( a& T' ?( b5 y
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SysFreeString(topicStr);
1 X% P! L( W+ k' o SysFreeString(itemStr);
4 p+ x" [6 o' y2 ~7 Q请问该程序是获得extend里面的哪个值?
6 @* A1 D8 b# H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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