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:' }5 P( P5 y' h( ?7 L
Name = (WCHAR *) L"Poke"; # t `5 u9 p5 k- i $ U ^" Q1 P& w
hr = m_pDisp->GetIDsOfNames (8 O5 s' t, c# ~% e0 Q4 p9 M
IID_NULL, // reserved1 E- ~$ x6 i0 u W" r% O0 \' h
&Name, // Array of names to get IDs for - U% m/ |4 O$ N8 N$ M& [, Q 1, // # of names in the array- l& q# ]5 D9 \& F0 X3 e; l
LOCALE_SYSTEM_DEFAULT, // System locale 9 S. U. ~! t; y/ h) b/ I0 I3 B &pokeID); // Array of IDs to fill on output ) x0 q: @: d& Q7 b u8 c5 z0 V ) u, N5 ~; l) ^- S( ]6 ?! A; a3 D/ B
if (hr). I! x5 ~, M) U. x* {
{ 9 d& q" _' {% q. f: C; n3 [9 J5 L MessageBox ("Get Poke Unsuccessful"); ' i! i V9 p1 d' a! Q( S) S return; % b! E! L" M" O* y }6 W9 X9 `8 {: `5 H+ D% @
7 ~" T& \, J5 u$ h/**************************传递数据给extend**************************************/ ' M, n0 y% e4 l& q% ^ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 3 L L8 ]6 E7 N( T8 w9 |3 k $ L* K3 `1 R; i: i& I+ p" G% ^ valueStr = SysAllocString((WCHAR *) L"1232");3 B# v) L) W3 z1 F
VariantInit(&pokeVariant[0]); 1 x( d5 q3 G9 p* d7 e8 f8 A( O pokeVariant[0].vt = VT_BSTR;( b) ?3 v; ]$ z
pokeVariant[0].bstrVal = valueStr;8 ?! s7 Y8 ~1 L
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); p( T' c; \0 Z( z. a( h* j" y
VariantInit(&pokeVariant[1]); ( }' e$ ]. J0 E/ x
pokeVariant[1].vt = VT_BSTR; 3 v) J. R w# \3 ~ pokeVariant[1].bstrVal = itemStr; z4 b' @& h1 u* c
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topicStr = SysAllocString((WCHAR *) L"system"); * [$ o- }) ^6 R7 r$ ? VariantInit(&pokeVariant[2]); 4 i c. u( _4 ~5 Q
pokeVariant[2].vt = VT_BSTR;* }* w. V9 I# g8 K. n( W# B5 C
pokeVariant[2].bstrVal = topicStr; & M* u, Z1 X$ |1 Y- t8 p 5 W' S+ E4 v* e; ]9 W3 F// Set the DISPPARAMS structure that holds the variant. * C% D* Q; r9 y+ J9 y3 J$ S( o% r4 m! S$ V% q9 O+ C& ` i3 ]
dp.rgvarg = pokeVariant; & s: L( w4 w1 t/ J) h! ^ dp.cArgs = 3; o1 c" ~# D! @7 S( w dp.rgdispidNamedArgs = NULL;: J$ K* g# U, D ?& g& J+ W9 L- r( ~5 i/ X
dp.cNamedArgs = 0;( `; _8 H4 b/ [' }. P \0 a
: V- |0 G+ F& Q# ?. h( U// Call IDispatch::Invoke() " l, \' ]( e! ^ : @& ~, y/ Y* A# o( t3 m* A hr = m_pDisp->Invoke(3 B* G) e# P/ z9 s
pokeID, 4 S$ L% ^8 Q. r IID_NULL,6 T: ?. B+ p; ?' p/ y
LOCALE_SYSTEM_DEFAULT, & f) [( _+ b6 g! b2 R9 L! G& q DISPATCH_METHOD,( @. H: p! W2 B9 v# d7 F
&dp,% `1 D+ Y: L; y9 c( v! b; [; L$ F# q
NULL, 6 ]5 c3 G4 Q8 V+ l% S3 `# J8 t &ei,, f7 b6 q# m# e0 U5 ?: o
&uiErr); M, f" r& a+ w# j9 R9 b6 ^" c7 W
SysFreeString(topicStr); / u2 S9 G. [, U. p) p SysFreeString(itemStr);- H( r& K, _- O9 s U- i0 T
SysFreeString(valueStr);2 [% S/ C) Q# v
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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??? 9 ~0 b& w# O1 Y5 @( i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????( E6 o- J$ u3 I7 N
! s: u* F1 g, i, D* N/ y3 J9 y ! s8 W, b: }: u6 A- J# }2.这是request的程序" n% }, V0 F( i. |) J
// Request a value from Extend 4 i& p" Z3 n3 Z9 ?0 A4 ]* H// 7 s& p5 M+ a4 D3 a1 a// Initialize the variant that will hold the BSTR. Set the variant's5 d0 x) p* k; d( e) @
// type flag to indicate the fact that this variant holds a BSTR. Place the & e6 j+ R* [$ b// BSTR into the variant structure. " v# x* y/ C, t; m2 F1 D9 J, k# [- V/ P
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. L- O8 x& b1 R+ C& Z
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" Z" T/ [% p$ A! ~
VariantInit(&requestVariant[0]); 5 P! g0 R1 W, ^7 x6 Y
requestVariant[0].vt = VT_BSTR; " u9 S0 K! ~4 v1 T$ F2 M) U requestVariant[0].bstrVal = itemStr; . C, z$ P9 M) T) D9 g. f) N/ _% ^1 x, v# p- O. ^5 S0 y
topicStr = SysAllocString((WCHAR *) L"system"); 5 m/ [4 {0 F; l8 s1 @: ~, k. t; ?$ { VariantInit(&requestVariant[1]); 8 T' R( O/ z) v+ Y requestVariant[1].vt = VT_BSTR; 0 N. w' P$ R* u0 ~7 w; V requestVariant[1].bstrVal = topicStr; + R% v- f4 J% w* B2 m8 V- B" ?4 b% ^( R) n7 n2 [5 ?" t
// Set the DISPPARAMS structure that holds the variant. " |$ _- n6 Y0 j5 S5 M % t: R/ R" c) ~5 E6 t" c4 e% N, { dp2.rgvarg = requestVariant;, Q- V( j' G% I' M% k/ U& f% n* X
dp2.cArgs = 2;; ]& Y' I% R9 S; m
dp2.rgdispidNamedArgs = NULL;; F; G% ] n4 p8 W! |
dp2.cNamedArgs = 0; * A7 @4 }! \2 Z) a! q! ]: o( w1 X# O4 Q! ~9 y
var.vt = VT_EMPTY; ) t! \' Y4 y, \: t. L$ u* ] 1 e% t! x# j" D* \// Call IDispatch::Invoke() - D7 Y: k8 Y5 i7 r# I% p- V( y, w- s7 ^
hr = m_pDisp->Invoke( $ ]" C5 A7 p2 ]9 A# a requestID,' e" a/ _4 E2 X, ^( o7 S
IID_NULL,. j& @7 f* o: M; h8 h
LOCALE_SYSTEM_DEFAULT,1 O( D4 f' C* z& R, I' e
DISPATCH_METHOD, - G& J p% F' l4 V &dp2,6 w# f j: M! @. h! z% p# M
&var,; |1 K( ]! {0 k+ N; j( S, _! E5 [3 g
&ei, 1 _2 G/ R9 A b5 |- c6 d &uiErr); 7 v' B( [7 p% v: i, @/ [) }+ G( {* A8 }2 U$ H+ S
SysFreeString(topicStr); 1 w0 @ l7 X- |$ M SysFreeString(itemStr); 1 K# Q; Q* P. y; R1 |. ?请问该程序是获得extend里面的哪个值? # q8 D3 ~6 a' f# C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????