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( u) Y8 C9 I) O1 ~! A
Name = (WCHAR *) L"Poke"; " u$ V" Z) ^/ Q8 F" V) a & `( [/ U& s: ~, o2 a% f) Z& C% l
hr = m_pDisp->GetIDsOfNames (! f5 O# C# i; i- u
IID_NULL, // reserved : d7 ~% [ \" M4 J6 m* `- l! } &Name, // Array of names to get IDs for 7 u& f& o& r: P5 \- d. @5 ^7 z# F 1, // # of names in the array! E. U, b5 R4 N* k& U
LOCALE_SYSTEM_DEFAULT, // System locale( t! A; h6 h: l
&pokeID); // Array of IDs to fill on output6 k, x7 x, E! F% ?& C
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if (hr) ) |' k% X r2 g' a8 W# S {: ^1 U5 a# [7 [: ?) R o
MessageBox ("Get Poke Unsuccessful"); ! L8 f( I1 q, w3 ? `; x return;& o5 \" b" b* R# ?, E: W! J2 ]
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! U a- [; G0 n; z5 b# ~5 c3 H0 r/**************************传递数据给extend**************************************/* ?$ m8 R N2 V6 T
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); , S' O1 ^5 R `; U) b3 x' `$ D- t' H ' v' L# y' |$ B5 P U7 s5 A# T
valueStr = SysAllocString((WCHAR *) L"1232");+ ~5 ?) W1 T" a! D
VariantInit(&pokeVariant[0]); - h6 K( i' D! O$ {+ I# K+ F
pokeVariant[0].vt = VT_BSTR;1 ^ i/ A6 ^4 w6 C) d0 ]$ ]
pokeVariant[0].bstrVal = valueStr; & [8 }" C4 C, V; c( x8 r$ i: V ( @3 n& d' n; S$ N# x% ` H1 F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 e3 t7 d3 D. D: T VariantInit(&pokeVariant[1]); 6 s! R$ ^3 e( u
pokeVariant[1].vt = VT_BSTR;2 [6 C: {- n' {
pokeVariant[1].bstrVal = itemStr; + x6 R @ G: H! e " q4 G$ S. h/ v1 S topicStr = SysAllocString((WCHAR *) L"system");+ v! g$ o- P$ V; ?6 f; G7 g
VariantInit(&pokeVariant[2]); / l: \; u7 `5 o2 ^% H" ]/ b
pokeVariant[2].vt = VT_BSTR; 0 L( ^: H8 q" n; [4 ~8 f pokeVariant[2].bstrVal = topicStr;" K; P) ~: ?! W6 ^0 u4 d
6 U4 E/ h5 Q5 m( C) @+ X5 I// Set the DISPPARAMS structure that holds the variant." p1 N2 R" ]1 \5 n
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dp.rgvarg = pokeVariant;) D! V. Z; ^; l% Q
dp.cArgs = 3;2 f( i: h* D b( ~) H4 r; L% \0 N
dp.rgdispidNamedArgs = NULL; ' B2 l* a9 o# l* P+ D dp.cNamedArgs = 0; 0 R j, Q: _: r& @: v! i. Y8 U: W# @. Y- N
// Call IDispatch::Invoke() . P( U, e$ P! m: k1 e' u8 z* O% B; \
hr = m_pDisp->Invoke( $ m# F k, ?/ j) l% A; X pokeID, : @( H9 i0 C% a ^, W. X IID_NULL,) Z' }! }$ H( b, {. B Q/ u
LOCALE_SYSTEM_DEFAULT,. f; N" y5 y$ a
DISPATCH_METHOD,* A4 y \: H: g" T5 F% L6 }. N! J
&dp, 2 {( K! Y; s* s# ?+ t; } NULL,4 g5 K* v- a; \% l
&ei, " I) a0 ^0 }) b% c/ d7 [ &uiErr); + _. t: R r$ O7 Q # k' m) P6 M; \' }* U$ b! t1 ?. r" x; { SysFreeString(topicStr); ! R, I( S( L/ s- c m. d SysFreeString(itemStr);$ w; i. k- ?$ p
SysFreeString(valueStr);! W# N6 k# Q* P* ^( i' j8 I# ~
- p/ K5 a, b+ g+ \* w, a6 w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???* o' c. o/ u& W4 V y" B
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???? 6 r# f7 q3 A/ n( @# d6 v' C# x" y: M1 Y3 S6 }* Z9 R3 ^
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2.这是request的程序, {1 }( T5 S$ w- b8 T0 k9 |1 y
// Request a value from Extend + l) |3 S& \! d. y% {3 `* e// % j/ V, s( F' c+ ]* N// Initialize the variant that will hold the BSTR. Set the variant's( d% T+ O# ?" {% f& | b
// type flag to indicate the fact that this variant holds a BSTR. Place the 2 e- Y; q4 C0 P/ h// BSTR into the variant structure.: Z. f' ]0 K7 Z- T
% N" a8 m6 a- m+ l l. f$ v requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 5 \5 d% \2 w8 M' s5 T( s' ` - T# Q2 @; s# m, l2 J* v! p: g' o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 a+ w- N1 D s% A" a VariantInit(&requestVariant[0]); - P9 T- a+ ~. h" n0 o0 f requestVariant[0].vt = VT_BSTR; , }/ v) B4 S5 Y7 l# Q- r x requestVariant[0].bstrVal = itemStr;0 O, y$ {3 E# a; f9 W
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topicStr = SysAllocString((WCHAR *) L"system");- {: L" b( Y+ a/ F* _
VariantInit(&requestVariant[1]); " d4 }2 E# P7 B% c- \8 E& T g% w- X requestVariant[1].vt = VT_BSTR;5 W5 X7 ^3 b( g; u) h
requestVariant[1].bstrVal = topicStr; & u" }2 [4 i7 P3 D4 a& A, e& ~5 x+ o8 C2 ^1 e
// Set the DISPPARAMS structure that holds the variant. , ?" U2 ]' u! U, S+ M- T" d* h6 p/ b7 R. L, }( c$ S5 T, X7 N# B
dp2.rgvarg = requestVariant;+ L; _* l! w. R9 i4 @/ q7 O
dp2.cArgs = 2; 2 S/ P& P' U' p: v T dp2.rgdispidNamedArgs = NULL; . a- M; Z1 N/ a3 B* | dp2.cNamedArgs = 0; - J8 }) i- p( W- d1 c; `2 s9 M" t' P, @3 o0 H
var.vt = VT_EMPTY;4 k A3 S/ }1 h! s5 d! b% h+ s9 C
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// Call IDispatch::Invoke() 5 [( h7 _8 C$ M# e3 X3 {* ^/ a+ d, _( J- W: K( Q
hr = m_pDisp->Invoke( ; b& ]5 X1 b& @* a requestID, 5 r7 a! _( t4 A IID_NULL,& L' N. I% g, l6 K# f0 z9 A: {
LOCALE_SYSTEM_DEFAULT,4 n+ C& J2 d7 A. Z) F, |4 R1 k! |$ p
DISPATCH_METHOD,2 M& I1 C8 G* t. V
&dp2, ( c$ F) H1 M, ^# U* X0 o$ t &var,- r1 @% ?. K. B/ k
&ei, 4 H. Z" M3 e! {( G; \5 d &uiErr); 9 \& _. Y- y4 O6 X, i5 }8 U8 Z+ d+ b: W: W5 S0 c+ I! v3 E
SysFreeString(topicStr); 1 V6 }2 x* A" x. Y \% `' Q SysFreeString(itemStr);6 K$ H( N0 q7 x( _7 C
请问该程序是获得extend里面的哪个值? % O3 T9 i0 s# S2 |& o$ Q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????