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:, A2 v' T& S2 V8 N4 F' M! e
Name = (WCHAR *) L"Poke"; : Y: v, O' V5 r& ~: y ! ~2 C8 [4 s2 c2 w( P hr = m_pDisp->GetIDsOfNames ( - Y9 \$ R. Q* e( }3 v* l4 T IID_NULL, // reserved, O$ E) m4 P/ `6 B& L$ J4 F9 d/ s
&Name, // Array of names to get IDs for, F! }) l7 W' v5 ^% G
1, // # of names in the array3 V# @/ d; o: f" y u( ^
LOCALE_SYSTEM_DEFAULT, // System locale* H3 G* U [, ~( {& N+ v7 M: K" m
&pokeID); // Array of IDs to fill on output. t1 l. r# j# V; _& H& a
q' P9 c- k4 M2 H6 Q' ]" b
if (hr)0 e; c1 w* v. C2 n0 H/ \/ U
{ 0 |4 ^9 [8 \7 F# S. L MessageBox ("Get Poke Unsuccessful"); - R/ w7 D: `! }/ ~ return; ! K- k" I2 r! ~, l } x( r" ]; ~) ` # C* c# O9 c5 |% x* K/**************************传递数据给extend**************************************/ - a, ?1 T& d( N7 f$ O3 C8 o. s pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);2 V O, c# [& q1 F& R
/ J. O* N5 f1 v8 G, k a: P' \1 o valueStr = SysAllocString((WCHAR *) L"1232"); ! i0 i% H+ M: I7 f4 y VariantInit(&pokeVariant[0]); ( H0 _3 q0 `0 u4 B
pokeVariant[0].vt = VT_BSTR;6 \; f& o4 B4 a+ V' N5 l6 s
pokeVariant[0].bstrVal = valueStr;+ C' h7 v- o) q, _0 [, H2 [( w
: v$ g% Z9 e5 V$ s3 J. a- F+ o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* ]# E4 ]$ l) R. v
VariantInit(&pokeVariant[1]); # S d, [: A/ y- s
pokeVariant[1].vt = VT_BSTR; # @: G+ |% ^ z g* |' A pokeVariant[1].bstrVal = itemStr; % [6 u$ I" b, H5 A _* |1 ~+ c4 i1 w/ P6 O
topicStr = SysAllocString((WCHAR *) L"system"); 2 g; ^# e* I5 |9 N0 Z, Q5 f VariantInit(&pokeVariant[2]); # t P+ K: Z- \/ z6 ?- Y
pokeVariant[2].vt = VT_BSTR;6 o$ X% Z% ^% Z! L
pokeVariant[2].bstrVal = topicStr;5 A1 k( ?# q. ?7 o/ B) b7 d: y: H
@- Z% p$ U% j* \) ]& |9 @ q+ @// Set the DISPPARAMS structure that holds the variant. 0 O& \9 L' A% G# l* [! C E Z" c4 a7 j, L) D/ q
dp.rgvarg = pokeVariant;; a0 t1 x% Q; `' I
dp.cArgs = 3;2 H+ K2 ]" c6 F3 h2 U& P- R
dp.rgdispidNamedArgs = NULL;* w5 k3 e: u: I* X z
dp.cNamedArgs = 0; * N5 ]6 G4 G* z+ Q9 `$ f9 Y0 ]; \! G$ C9 Z ]7 {! H
// Call IDispatch::Invoke()" f0 }# `# E) z
, \+ Z+ @5 J0 | hr = m_pDisp->Invoke(9 A f6 l( Y0 G
pokeID, * I/ I, t0 }/ q* M& V IID_NULL, + `: i* v5 m- p$ f' I LOCALE_SYSTEM_DEFAULT, ]4 _; j- ~# I0 }7 j# h, ]* A. n
DISPATCH_METHOD,0 y5 ^( u6 ]1 }% ]4 Y) ?2 V# s
&dp,1 [5 L% r5 a7 I# x
NULL, 1 z/ r# x; v" v: s. J/ v2 A$ ~ &ei, - `+ K: m# K4 u3 X &uiErr);: q: K, k" j6 V" C( |" G
/ {4 ^# p4 \$ ?# t# |" i I SysFreeString(topicStr);8 m5 E$ V# O& A
SysFreeString(itemStr);, `- V$ Q( B: o" k
SysFreeString(valueStr); K3 ^9 v8 Y+ {! O" e - A+ p0 a& Z( Q& g6 W. K: u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???8 x, c0 X4 H' n, ?% I5 ?6 g3 a
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????7 |! I; Y$ \0 O4 M Z2 w
- W; P' V& g% y5 B1 {5 r3 p # c1 x& i' ^0 {5 w2.这是request的程序( U; K6 Y: [+ w: s j
// Request a value from Extend ; p" q2 F% H0 U' E//3 r6 u2 m- f6 K# [/ P0 H
// Initialize the variant that will hold the BSTR. Set the variant's( t& V* Q7 m! ?- ~6 L& W* G1 m( {
// type flag to indicate the fact that this variant holds a BSTR. Place the u( m8 w* X& q* u% T- A" |7 C
// BSTR into the variant structure.% e5 F1 q$ |7 r2 j% h
( `4 u3 q/ ^" w! O' ^5 B requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' [* @& t( R6 [. y! m ' I8 u5 ?4 ^7 f% ]! ` b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , L; w# x, {2 k) d' p4 z T- I) i VariantInit(&requestVariant[0]); & b! O+ r0 l" s- H3 z/ Y: s requestVariant[0].vt = VT_BSTR; * ~- ^# R5 X4 |; L; k* n: Q requestVariant[0].bstrVal = itemStr;2 R% D+ r! n7 D/ z4 y9 J5 C* e( T
+ W: u, L& H7 [. q K1 e C) n7 y topicStr = SysAllocString((WCHAR *) L"system"); # v: [/ B; m5 E8 Z+ f) O3 q VariantInit(&requestVariant[1]); 3 ^7 x2 P0 W8 S" A' Z; z0 r8 N4 o requestVariant[1].vt = VT_BSTR; * @, \: r' j! T7 B+ G4 `* j* U5 J requestVariant[1].bstrVal = topicStr; 9 S; R$ P/ W& u; K4 f8 @5 D% @6 e$ U- N+ U- W
// Set the DISPPARAMS structure that holds the variant.6 |5 o0 ]+ | L. _- Q. o8 c6 W
( q: V: d' N9 _, \. ]" L* Y. X
dp2.rgvarg = requestVariant;9 @1 \: H4 h) E5 Q, F$ u
dp2.cArgs = 2;& H. t7 K, w& y# E" Z) a
dp2.rgdispidNamedArgs = NULL;# ]' e3 @6 S2 @; U
dp2.cNamedArgs = 0;2 u; v2 T! j6 e) x6 K3 ~) H6 C
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var.vt = VT_EMPTY;& z# Z6 A1 F( v+ w. O5 V
( ~4 I7 I# w2 U" d- j5 f+ F: ?' J8 I
// Call IDispatch::Invoke() / Y. i& y; g% }' T& i+ ~1 z! {: R* z# v% |; @
hr = m_pDisp->Invoke( " I' u s/ ^/ ~& J8 I5 \ requestID,) u* x9 l% k4 O/ n. T4 I; c
IID_NULL,9 Q2 u# T+ f, b8 f6 ~# ~ F) d: z$ n$ Z
LOCALE_SYSTEM_DEFAULT, $ D$ @8 T3 e1 v; t; Y DISPATCH_METHOD,# A" v4 j' {- f. T
&dp2, 2 n3 B+ z+ K+ j9 x( m, s &var, 2 c7 j7 R8 G! N( T- C) G &ei,: w3 h5 F6 t6 D/ T
&uiErr);+ G4 N3 d) E- d1 V
8 H6 v; I9 g6 I6 e4 G/ |1 A
SysFreeString(topicStr); 8 n. `! E1 L) w B2 c& {" y7 R SysFreeString(itemStr); & w0 F7 h$ G G6 c6 L请问该程序是获得extend里面的哪个值?9 Q, W. W+ n6 G$ m U( I* h
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????