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 Y9 y- I8 K) {: f' o0 N" ~2 a
Name = (WCHAR *) L"Poke";# E! ]$ S0 C) F
! ~$ p3 p: P0 `! Z) i
hr = m_pDisp->GetIDsOfNames (. k2 p. b1 {( P
IID_NULL, // reserved - W0 ~9 C9 p! G7 s &Name, // Array of names to get IDs for- D& q/ V* n) _8 L
1, // # of names in the array * t8 W2 G' t0 \8 `/ B. ? LOCALE_SYSTEM_DEFAULT, // System locale* W# d) @# s# x7 L- s' ]
&pokeID); // Array of IDs to fill on output ' `- W. D, H! A. S9 k 9 T4 j9 B1 ~9 e1 J U* F) @8 Q" A if (hr)" X7 o0 O3 I. A" k
{ & ?/ `2 n$ V. g+ N/ O( g MessageBox ("Get Poke Unsuccessful"); 4 N, k: Q% b1 B- e0 U- Z, C return;/ b) H- @: T+ C6 q8 k
}3 u Q/ ?% o7 o2 a; M. \) q. j
8 t. H' o. y9 _% m/**************************传递数据给extend**************************************/6 S& ^5 i* v$ k: r/ d) `7 o
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 6 l9 O# [ W# e# Z% G8 Q & E; h' [! K+ Q( j3 T, A6 b
valueStr = SysAllocString((WCHAR *) L"1232");0 p" |& ^. k( V
VariantInit(&pokeVariant[0]); : m2 d5 V0 O$ u) ^0 R6 q1 C9 F8 ~
pokeVariant[0].vt = VT_BSTR; " ?5 D& X8 \0 X9 p: H, J pokeVariant[0].bstrVal = valueStr;& j d' K7 K% i# Y
2 }! b0 X6 t5 B) e
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; D6 q4 S5 ^9 s' ]5 J- ~1 T: V$ i VariantInit(&pokeVariant[1]); % O5 E9 {' a5 ^+ V$ j* C
pokeVariant[1].vt = VT_BSTR;9 ?' @! H$ j1 D7 o
pokeVariant[1].bstrVal = itemStr;7 U# { ?+ O2 C6 ^3 f
& K( c7 y# {/ O2 W O& C+ V1 ^
topicStr = SysAllocString((WCHAR *) L"system");1 [. f3 |% |! {/ a
VariantInit(&pokeVariant[2]); ; T: w- O" K4 P* j pokeVariant[2].vt = VT_BSTR; 3 e6 f) \+ {$ m9 _ pokeVariant[2].bstrVal = topicStr;; G, T' I" S# M" Q; n
/ F2 x t+ J a& j: u5 H6 V
// Set the DISPPARAMS structure that holds the variant., \( M" k1 [% A
1 H. O; X; `- Q& Y dp.rgvarg = pokeVariant; * I% U; }7 m4 }# H dp.cArgs = 3;+ ]! T% |5 |) V: g: B. v9 @
dp.rgdispidNamedArgs = NULL;9 u+ r) o, L4 r: z2 T' u* U8 P
dp.cNamedArgs = 0;3 n9 d1 \4 t& {3 c- F+ ]
- f& D- P/ x& @$ Q% i0 \$ @
// Call IDispatch::Invoke() 1 z' E4 t' }2 i7 x0 g! [* R/ e 4 v6 i( Z$ p5 q# G/ o7 J hr = m_pDisp->Invoke( 5 w; R4 b: Q i) |5 ` pokeID, 9 e6 o* _! w7 D9 V! v IID_NULL,- r. x, X/ q8 }, |% M$ Z" d* `
LOCALE_SYSTEM_DEFAULT, 7 Y7 r) s3 J H8 f* e; H DISPATCH_METHOD, 3 X- E9 K2 A( R4 r7 R; o# D &dp, . b j/ m& q5 l5 h NULL, O3 z9 z! L E( [" m) S
&ei, ( c# |9 B9 m5 C; p g &uiErr);+ H( W: C. }7 m* `0 i
9 g4 B1 `% C2 S7 R
SysFreeString(topicStr);- V4 A* H: D y- d% d
SysFreeString(itemStr); 9 k. N6 e9 O4 X3 x p. d3 ]( [ SysFreeString(valueStr); " y, O% v7 ]/ c 2 }; j; v% W, F: B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 ~# L$ V* H0 ~, P- h, y
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???? 4 G* s8 J; f! d% s # {& x1 } s5 S9 E/ S& u . |3 ], e3 P i+ t* {% S4 w7 \2.这是request的程序 ! D4 ?6 T' \7 D% r" \1 j F# S// Request a value from Extend ' W/ d9 ~: u. B. u) e5 T//+ m; [4 P9 j! J; o
// Initialize the variant that will hold the BSTR. Set the variant's " c7 j+ c/ M. H* L* S+ A// type flag to indicate the fact that this variant holds a BSTR. Place the5 K; U- ?; n6 l# o# x3 f
// BSTR into the variant structure. # J. Z- T @! Y6 }6 D3 I# [& b4 ^/ V2 e" g) O
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); / m/ D% o" R8 r1 r/ N# f2 H+ h ! T1 z7 X9 X& p# I8 j" j/ @ L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 X# P6 g* V ?: h# N/ a VariantInit(&requestVariant[0]); 4 d5 v" T7 X, O" R3 b0 T% V. R
requestVariant[0].vt = VT_BSTR;8 Q. c [0 Q8 J1 g. s& c2 C5 g: _- W
requestVariant[0].bstrVal = itemStr; 4 Z$ J* k" o& n; d7 a7 i$ K0 x) ~* n" e# _' Y. s
topicStr = SysAllocString((WCHAR *) L"system");3 {6 F* G' S5 w4 o7 A( r8 y; r
VariantInit(&requestVariant[1]); u- H# U5 ?4 _
requestVariant[1].vt = VT_BSTR;' v+ n0 s, }6 q. }
requestVariant[1].bstrVal = topicStr; 1 A4 {/ Z' z6 z- B! Z6 a + H* e6 r' s" i: ?5 R% P6 C6 \3 @// Set the DISPPARAMS structure that holds the variant.. b V9 e5 N- Z4 `( z R, O
! V$ w6 _$ N. d$ _7 i u
dp2.rgvarg = requestVariant;+ P: `9 Y" W. n, f, o
dp2.cArgs = 2; 3 G9 x/ Z3 E; ?# Q dp2.rgdispidNamedArgs = NULL;- ]3 Y& j9 u6 M4 {: _
dp2.cNamedArgs = 0; * n0 Q: I) _2 U' w, ~/ z# z* s K, B# \* z7 [# u
var.vt = VT_EMPTY; 1 r6 a) A1 |0 O) J' A+ D 3 \2 K% Y9 f% `9 a, {// Call IDispatch::Invoke()0 K" t: l8 S' e1 u- h, f) C+ U7 y$ T' ?
- k: ~, f% e' O; A4 o- E) c' {
hr = m_pDisp->Invoke(- _) F& z" b0 r* R+ U2 D
requestID, 8 R( Z8 ^+ S/ Z# [3 y1 o) X/ [ IID_NULL, : e/ s+ g' z1 J- t3 S3 L LOCALE_SYSTEM_DEFAULT,% S! L) Z4 {, b* {
DISPATCH_METHOD, 6 R+ Y. P9 W6 ?( H6 N" N &dp2,7 A6 X. G# ~( j/ i
&var,: I& M* K; g2 ?/ u6 a
&ei, , G- y! ?3 @8 [' b1 T& l &uiErr);; Z( k n: S3 q' U
) {, C3 D& u x& c( y
SysFreeString(topicStr);: D2 D B- A8 E
SysFreeString(itemStr);' J0 e3 ]* u' V8 \7 u8 m
请问该程序是获得extend里面的哪个值?( m* o! J: `5 w4 H. z I* P
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????