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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:
7 F0 m) N; N! i3 I5 NName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (
+ L; x- u6 w& K. p( c/ I; T IID_NULL, // reserved: b' @* |6 b8 N! F n
&Name, // Array of names to get IDs for+ p6 S1 p- |3 T+ e! X# u
1, // # of names in the array N; s! t \, |- p2 D
LOCALE_SYSTEM_DEFAULT, // System locale
+ Q; @% n( j; {; l/ E% @4 c) ` &pokeID); // Array of IDs to fill on output4 R Q7 d: t- X
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if (hr)2 [' u9 `$ c$ ?1 h# Z
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MessageBox ("Get Poke Unsuccessful");
8 E$ V( k/ Y0 j q; R return;
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9 ~/ `+ y- f1 [/**************************传递数据给extend**************************************/
' |# ~, ^/ [4 I# T5 y, S5 }- _ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ S5 k4 ] `! w* ] A5 |! t
) V4 y& s7 {( ^ valueStr = SysAllocString((WCHAR *) L"1232");) s) B Y9 ?/ ~9 p0 c, k1 m
VariantInit(&pokeVariant[0]); 0 f3 p, s; C3 i% m# \, H2 q5 L. n, u
pokeVariant[0].vt = VT_BSTR;- k. e9 p! k/ t+ z, {( N9 q
pokeVariant[0].bstrVal = valueStr;
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2 v" }2 m; V2 j) }4 Z: I+ H, g itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 G1 {* ?$ Z! V6 i: d
VariantInit(&pokeVariant[1]);
# B* S( g8 j* ^5 f pokeVariant[1].vt = VT_BSTR;
& _# i T1 c: f4 ] pokeVariant[1].bstrVal = itemStr;7 c! g2 L9 c3 ~. a0 S
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topicStr = SysAllocString((WCHAR *) L"system");
4 Q" W9 [- }- p# B9 a VariantInit(&pokeVariant[2]);
E$ O+ l7 }# b0 c pokeVariant[2].vt = VT_BSTR;
( B) Z( M/ [) E, j, E1 h' J pokeVariant[2].bstrVal = topicStr;7 I: s. m c& c- z2 `3 O! H
% x" y- w# E, _: Y# `// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
- |1 g$ K0 \6 h, V" o! { dp.cArgs = 3; i) i7 {% H/ F% u
dp.rgdispidNamedArgs = NULL;! _% o V0 l% m, {4 [/ O! C6 J
dp.cNamedArgs = 0;
& O6 \8 C! d! K/ h: \# g/ T) r
# O& S" k# \5 u! u// Call IDispatch::Invoke()2 q* t. i0 w: P7 F
/ x: A+ U# C+ Y/ B8 X0 R hr = m_pDisp->Invoke(+ g6 C; @/ l* C' {5 b
pokeID,9 j: U. B+ U. ~) C: H1 }9 a& |
IID_NULL," W0 N7 Z4 c+ G* P. K
LOCALE_SYSTEM_DEFAULT,
0 Y1 H$ c) C4 Z' N; U7 L/ ^ DISPATCH_METHOD,) v. M" |" H- l& F3 G: l
&dp,
1 m4 r; g- _! O, b6 ?8 l NULL,* o |8 _5 l" _
&ei,- t$ K6 }" ]3 u& T, i2 D( v
&uiErr);6 i* E# I- i# i- \& ~, v
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SysFreeString(topicStr);
: n! t/ c. H8 v0 o1 `9 u Q/ ^+ K4 s& G SysFreeString(itemStr);
! v* M& ^0 j9 R4 @& `0 [+ e+ I SysFreeString(valueStr);/ P$ e1 i* G( k
& e4 T4 o, Z3 p! \- g7 m- B
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???
1 v& k( F8 s' n K4 P5 z* r8 ^, V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
6 X5 [0 C+ a* E' ?% D( p// Request a value from Extend2 I' I# z, ^. [4 T4 h- e5 N, C2 `
//
" ^& p: i$ v% |# f/ i// Initialize the variant that will hold the BSTR. Set the variant's
3 V0 Q+ Q2 d2 U// type flag to indicate the fact that this variant holds a BSTR. Place the
2 e8 }' F; S" s8 w5 D$ o+ y// BSTR into the variant structure.
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. K/ m9 L/ B) ^+ b4 B requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. |' d0 [( B8 u& _ r8 H
) x) [& z. ^. K+ p& X" |" T$ N
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* ^% b" y9 X) a7 p+ B
VariantInit(&requestVariant[0]);
" |2 \; C" K `. h( p+ s4 P! x requestVariant[0].vt = VT_BSTR;" g; N# P5 Q5 N! K( \' z. j7 P
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");, H& j8 `2 x& y( J. q
VariantInit(&requestVariant[1]);
# ?2 @& N$ n) {$ _" a requestVariant[1].vt = VT_BSTR;
+ v; ~ r/ i I: h% z requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.* ~, R. b2 x; H+ r! l& M& P
0 I* w8 P# M* E' B( f dp2.rgvarg = requestVariant;
0 @9 w7 z/ D0 C) U S dp2.cArgs = 2;" H& s9 d: u8 C$ k2 D
dp2.rgdispidNamedArgs = NULL;
, B5 h1 C" e3 E: l8 B' f( k6 c+ f dp2.cNamedArgs = 0;
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# l! a) P; S/ }, [# | var.vt = VT_EMPTY;' |, ^1 \7 O. Q; f
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// Call IDispatch::Invoke()
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/ Z$ E/ _5 R! Z7 V- |. U hr = m_pDisp->Invoke(0 F* E/ `* G$ Q) ~) b2 G1 S
requestID,
6 o+ J: b5 P( \& _) t IID_NULL,
1 |* z5 G- E1 B7 J LOCALE_SYSTEM_DEFAULT,
2 q$ T/ [7 t* t* u. Z& T- u DISPATCH_METHOD,, P8 f s! ?! q; q. {
&dp2,
7 @( P$ V9 j/ `$ r3 R, g3 o- f& S5 o &var,- a, X [9 b! o* ]4 D
&ei,0 B) A( h0 k5 z: I5 Y
&uiErr);
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+ c$ Q _7 g/ C3 A; e& `0 E3 U SysFreeString(topicStr);
) j w4 D3 z: W- t SysFreeString(itemStr);
9 s6 A0 Q! E6 {( w& y请问该程序是获得extend里面的哪个值?
. @6 I# [4 K. N, g& 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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