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: 8 W" P5 |$ K) S$ ~5 F! J+ j: l; A- dName = (WCHAR *) L"Poke";- p; m+ ^' ]( T: C4 s0 c$ I
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hr = m_pDisp->GetIDsOfNames ( 3 E# K: Y' \1 `& n# Q3 }4 E( ?) p IID_NULL, // reserved* V4 y6 v* p+ n4 R
&Name, // Array of names to get IDs for 5 N& Y" [- U# s 1, // # of names in the array 0 ~, V6 L* {" \% X LOCALE_SYSTEM_DEFAULT, // System locale " Q, `6 ?% T" n &pokeID); // Array of IDs to fill on output + K: W q: y5 q2 h # e. F, J6 ]! w( X4 N
if (hr)( @& g6 B4 H7 }) g, p
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MessageBox ("Get Poke Unsuccessful");* Z+ n( }4 Q7 h: w% f1 L/ E
return; " b2 m* U; z. G2 C4 x7 l" I! ^ } 7 q% }3 u& s2 C( Q! N$ @3 x- Z2 A2 S7 e# o# ~' V( z3 i+ c2 Y
/**************************传递数据给extend**************************************/2 s4 P9 Y9 S7 J. l! G" a6 v
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 ]' _8 x* w+ |
: p: c2 v* r8 f% [) [0 Y' \ valueStr = SysAllocString((WCHAR *) L"1232"); 8 j) t+ y& v/ B4 G VariantInit(&pokeVariant[0]); ) l: Y* n; m. C" U9 b
pokeVariant[0].vt = VT_BSTR;+ u* r! ?: y' J
pokeVariant[0].bstrVal = valueStr;7 I* t$ f8 j& ^$ G$ \3 P8 `
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ F7 q; l6 E t0 f# Y
VariantInit(&pokeVariant[1]); $ \: n7 N$ H4 z5 S' b
pokeVariant[1].vt = VT_BSTR;7 d+ f% a |% D% l. r( d
pokeVariant[1].bstrVal = itemStr; ; S" z: ~& k# z. B/ ^% i" b # j; A/ `& d3 t! N! r1 _7 ] topicStr = SysAllocString((WCHAR *) L"system"); ) Y) }" W+ x; T" i" P- C VariantInit(&pokeVariant[2]); , [& W% K' Z% b pokeVariant[2].vt = VT_BSTR;5 _% g( r* n+ H
pokeVariant[2].bstrVal = topicStr; 6 }$ X9 I) X7 u% z5 o$ |8 h7 C* c# T6 N) L, f' o
// Set the DISPPARAMS structure that holds the variant. 6 M: _5 `$ v: N2 p 2 V) I, @5 G, v5 f$ b' i- b- R dp.rgvarg = pokeVariant; C, Q/ ^9 M1 r& p dp.cArgs = 3;# w- @/ d$ l; m# g1 W6 H* a
dp.rgdispidNamedArgs = NULL; ( V& L- l$ u8 L S dp.cNamedArgs = 0;- _. X+ v3 I) w( t- r/ K* \# `
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// Call IDispatch::Invoke()# s. v: r- Z2 {) w; _
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hr = m_pDisp->Invoke( 9 D1 e) ^) c H4 p pokeID,, y& R9 b9 w$ T* U7 l; v
IID_NULL,! z/ \% _, A; `6 @5 c( e$ g4 Y
LOCALE_SYSTEM_DEFAULT, 6 Y6 D) s3 c2 Q7 F* u DISPATCH_METHOD,, U3 l, E& v- f# [6 D0 g
&dp,8 D) b' w! {3 u& x# n" a* a
NULL, 4 |4 s. g% U6 G) A6 r; C &ei, 8 N: a* R7 f0 F% B &uiErr);, ^" X! X U8 e4 L+ P1 f
4 q S; N3 u, w" w, R4 [, O% o SysFreeString(topicStr);# ~: k5 g. Y6 `% K1 v. G
SysFreeString(itemStr);$ V& D! _5 W2 f" t- c. p
SysFreeString(valueStr);; k( F, Y4 q. q" u/ K/ I6 k
6 R( r" T. z+ R- f+ ^, v1 R( |+ M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???% M8 c; a1 |; l9 D' ~2 H
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????3 N7 ~6 C# B7 e/ r
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- t, [* S& _5 p& y. m' X0 z" E2.这是request的程序 % @# C! z" _ j% q. Q) E( [// Request a value from Extend 2 C1 [5 z- S) J2 \// & L- z; a' Q6 z; K$ q// Initialize the variant that will hold the BSTR. Set the variant's$ i8 S5 P! [; y8 V/ J; ~' V, U
// type flag to indicate the fact that this variant holds a BSTR. Place the. p2 }: R- b( p% G6 f
// BSTR into the variant structure. ; q# l: m* J' n; f 2 A# {, R2 t) |9 i& n requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 T8 j; g, y0 r5 Y
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 \) O& Q f' y
VariantInit(&requestVariant[0]); # S" _4 f& X" I' M) }
requestVariant[0].vt = VT_BSTR; $ |3 F! E/ Q) }/ V, e3 i" n5 {7 x requestVariant[0].bstrVal = itemStr; 0 H( Q/ g3 O @ z" }" T8 p/ t / q4 y" e: ?; K' n topicStr = SysAllocString((WCHAR *) L"system"); % X9 o! \3 x+ T0 q _; d& y VariantInit(&requestVariant[1]); & Q' N- L: c' e t
requestVariant[1].vt = VT_BSTR; ) z. w" x' p; t# V' ~4 {3 R3 ]% i requestVariant[1].bstrVal = topicStr; ( ?! o3 e1 l1 q* p e0 t * f# ^# m [5 s% A" o3 t$ r! h7 a1 S// Set the DISPPARAMS structure that holds the variant.1 R8 ?9 I- e& u$ l7 H
( W- i9 _# F9 Y/ \; {0 g! V dp2.rgvarg = requestVariant;+ T2 N! z' w' H' R1 w3 d0 f
dp2.cArgs = 2;9 [( ?4 ?* {" L0 ^( m( L d
dp2.rgdispidNamedArgs = NULL;" ?+ d) N+ X8 c' k5 Z
dp2.cNamedArgs = 0; 6 P' D7 E- L; V" h + \# `, e0 Y6 b5 }; F var.vt = VT_EMPTY; 3 L0 v" J& p8 X1 {( H0 O$ M 6 V, v4 [" x; ^// Call IDispatch::Invoke()7 H7 |' w, }2 T* k' Q. R* |; o
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hr = m_pDisp->Invoke( ' a+ ^) y8 [$ \# }" i8 v requestID, + Q0 X7 D, h$ C* a' s; K IID_NULL,7 C& |4 H2 N* I$ R" i
LOCALE_SYSTEM_DEFAULT, - R4 \- p. u" ?4 t# X% a& y# r1 A DISPATCH_METHOD, 2 k- P W' G7 N$ }0 L9 D- U &dp2,( f9 i4 ~/ j9 o6 F3 c
&var,7 F+ M. Y1 R% Y- n' W: ?1 O0 d5 u
&ei,5 y% i+ G( W% m, v3 w$ Y: N9 g! C
&uiErr);* ? m5 i, A- \5 E7 S/ k% s
3 l6 U! O7 }( r: l- T0 @ SysFreeString(topicStr); . c3 n" d6 a' P* {. t SysFreeString(itemStr);3 F* N, r& v1 ?4 `. q( U4 j) u
请问该程序是获得extend里面的哪个值?& \' l- f( r% Y! y, ]
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????