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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:
" p! E! j1 x- @2 l* G! R SName = (WCHAR *) L"Poke";
" W1 K; ^: E: e7 T7 P: q 4 J/ j3 X2 ?" d/ x+ k& R# ~" Y( S& c' e
hr = m_pDisp->GetIDsOfNames (
3 l: r5 B% { s: i IID_NULL, // reserved3 _1 V! \4 y5 x# G& c3 d
&Name, // Array of names to get IDs for
7 v& F5 c( V( C2 x3 f3 s 1, // # of names in the array
4 m8 \2 C: H( I" \0 x3 [ LOCALE_SYSTEM_DEFAULT, // System locale
+ s( J% N8 i3 b &pokeID); // Array of IDs to fill on output% ^1 S4 b+ ]& p* x
y, d; F5 H9 B7 p5 K! D* E( p9 s if (hr)
0 c/ O+ C* l* C6 } {
. i0 h# Q3 x1 ?/ E3 N! H- `# C MessageBox ("Get Poke Unsuccessful");
P0 M% O+ K" b' t' X/ k return;( C5 O. w1 f" t$ \1 Z+ f5 D5 c
}
+ U- V* L: P( U1 M- d" n1 {1 H" @7 Z4 j
/**************************传递数据给extend**************************************/
6 U* U4 g! C" u* Z: F1 v! v5 F pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
0 y( j) H; t0 d0 g7 P8 k1 g# R# j
6 F; x) ~! o t& O4 B/ a valueStr = SysAllocString((WCHAR *) L"1232");- J5 S# j9 L# w) s- b9 O
VariantInit(&pokeVariant[0]);
4 U8 ?% t% z9 R8 Y: P4 J pokeVariant[0].vt = VT_BSTR;3 C% o7 ~: _2 Y
pokeVariant[0].bstrVal = valueStr;0 N( F6 e6 h. e
/ g$ j9 o( J. T3 Q8 E! _ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 T5 d0 s. B+ H6 y9 J V
VariantInit(&pokeVariant[1]); f! h' v/ `7 r5 c! ?- Z+ Y
pokeVariant[1].vt = VT_BSTR;8 c# S3 \+ Y0 d
pokeVariant[1].bstrVal = itemStr;: D% S' u6 d2 Q1 b4 L( V* l0 I
" B. h r( p9 l# B
topicStr = SysAllocString((WCHAR *) L"system");
' K4 E1 }7 X" v' i1 O# } `* c$ j VariantInit(&pokeVariant[2]); 3 y) k8 @3 I! b5 i' o7 X' X# O: ]; f7 y
pokeVariant[2].vt = VT_BSTR;
+ h3 O2 b2 D5 `8 j7 D! Y) L7 L pokeVariant[2].bstrVal = topicStr;+ \7 E1 c# h4 H
7 N9 Y* ~$ x* D/ k0 ^
// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
" u$ G9 Z, v. \/ M u dp.cArgs = 3;
" O/ i/ y m# S! A4 y dp.rgdispidNamedArgs = NULL;
, ]+ D% x6 k4 }* ? dp.cNamedArgs = 0;
0 u9 F5 ? o0 }9 H; X5 N' e
( ]. k1 j' ^% S. M$ m// Call IDispatch::Invoke()3 |- T3 T8 i8 c- W$ \. ~ I& j+ _, D
6 p, {* |. t) L) L4 o( z hr = m_pDisp->Invoke(/ X3 Y% H4 T$ f3 z3 z
pokeID,2 H7 h( ]3 u+ a5 M# D- k
IID_NULL,+ s! A* f8 Y' J2 f7 e
LOCALE_SYSTEM_DEFAULT,
$ d: Y6 Z! v4 { DISPATCH_METHOD,. O' F1 T4 r8 n) E) Z" J* Y
&dp,( l7 f( @& m+ G8 T5 q0 h
NULL,& v2 f8 O( x L8 d: E+ X4 W
&ei,0 F' g* x3 W! _6 y, n" m3 h
&uiErr);
! q5 V! O. q \- q- }% d: w0 S5 ]9 v# d( a& O# N. |) J
SysFreeString(topicStr);+ X; G$ S. `+ I9 D9 x
SysFreeString(itemStr);
' p* n2 m1 L9 H7 ]" f( B$ G SysFreeString(valueStr);* e1 }% w v# Z; i2 U
) Y: H* S) O: Q/ C" o, N; 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???
6 N% U, a7 ~5 d! 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????
: q0 K) c8 a4 g! M, f5 c
4 z0 b+ D. m/ v
% ]) f8 G% o. |* p2.这是request的程序( @4 h, o, z" [! g) ]! `4 ?& ]
// Request a value from Extend
; X2 c: U( t2 g8 N//
8 S% f; r: [& q |$ f+ q# u// Initialize the variant that will hold the BSTR. Set the variant's
* K) |( v, \8 n3 i, t/ ]// type flag to indicate the fact that this variant holds a BSTR. Place the
7 G5 | n' G; c2 k+ i& K7 B" d T// BSTR into the variant structure.
% s' S9 U+ ~$ @" _- p9 v; X; }" s, [# h# T* ^
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 \- ~4 g! ~5 @: H
( i' `. x% O: Y- b9 W& k1 P
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
2 [( _4 u2 ~+ i/ l; P8 Q3 V6 @ VariantInit(&requestVariant[0]); - C" k2 ?, B0 X3 l! [3 Y9 S
requestVariant[0].vt = VT_BSTR;
1 S1 M% {% f0 Z* ]$ E requestVariant[0].bstrVal = itemStr;4 G, N1 e7 ]* S6 g) [
& L; g0 o1 k" D4 |0 N4 V* g! K topicStr = SysAllocString((WCHAR *) L"system");$ t" m' V y; b* q9 o- n
VariantInit(&requestVariant[1]); , E: p; J, m3 f( j# w
requestVariant[1].vt = VT_BSTR;0 Q: G6 I0 A4 \& y8 r) d( j
requestVariant[1].bstrVal = topicStr; z9 k# z$ Y: J
7 o/ \. M7 `* I* m. ^4 r// Set the DISPPARAMS structure that holds the variant.* H9 v! o* ?. |/ ~; {
; L4 j2 |* T! s: R( i
dp2.rgvarg = requestVariant;
5 @5 L& \( U! r- ?1 U dp2.cArgs = 2;
) Q2 j, P; v4 Y dp2.rgdispidNamedArgs = NULL;1 e- Q5 K; ^: o3 |
dp2.cNamedArgs = 0;
" B- v+ s R3 x
; U' ~7 _0 F, W1 q, } var.vt = VT_EMPTY;6 c8 g. u1 e. _4 W+ @
2 E3 V( T( I# \* t; E
// Call IDispatch::Invoke()8 p1 y/ d! G7 T; n: i
3 X2 @! k! H& ~4 }/ R0 ] hr = m_pDisp->Invoke(, x, p9 K3 b! J6 w
requestID,5 D; \* y# W- y1 s% F# |# t, ?
IID_NULL,( j6 _ t# k$ Q' {$ P
LOCALE_SYSTEM_DEFAULT,
2 i ?1 H- P- C) e DISPATCH_METHOD,
' Z) l0 w3 s; [+ I &dp2,9 I8 I) n6 a4 ~6 P `
&var,
6 _ T. j# X) p d &ei,5 G& _ \8 f& [9 c
&uiErr);
0 o( D( C* b) X. t+ q
# d' `" B5 d. Q9 z& E6 z: u. k SysFreeString(topicStr);
! {! e2 m) m. J }- e$ S' D SysFreeString(itemStr);( u8 y( Q. ?( V& b$ T
请问该程序是获得extend里面的哪个值?
' I3 Y- ^+ ^8 H1 D/ l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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