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:. n3 O8 y% [0 ?: e- P- i* c3 D
Name = (WCHAR *) L"Poke"; W) N6 p2 j' [; J : b4 w5 l7 D0 S k5 z7 ~
hr = m_pDisp->GetIDsOfNames (: J7 S! N3 K# j$ z+ k
IID_NULL, // reserved 9 | t% R/ U9 J# X9 ] &Name, // Array of names to get IDs for * e Q3 b$ a- \: r6 W7 T9 Y+ ^: P 1, // # of names in the array ' y4 a& m: L+ W' T1 ~ LOCALE_SYSTEM_DEFAULT, // System locale* S r* r# F/ Z& B4 U
&pokeID); // Array of IDs to fill on output 7 Q0 b3 T- z7 n) k 8 j' R/ t/ _7 H2 d! _
if (hr) 0 S7 [! d0 | I$ z% q { , j7 D1 h. S+ M- s3 Q- Q; N* D4 Y MessageBox ("Get Poke Unsuccessful"); 9 q0 n% ~ b% G return; 9 [* g b" l4 v. K: ?" F } + E; Y( _( P9 A( c % p; o8 o3 V& p: d- Z0 u/**************************传递数据给extend**************************************/ # B& J" t. y: ^- y4 X9 O7 k1 S. @ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);3 _* N; G& U1 |/ c, |
0 M" \; J C) ~ valueStr = SysAllocString((WCHAR *) L"1232"); $ H5 Q6 h- K( y( V VariantInit(&pokeVariant[0]); . h% H2 X) G- W0 k* \2 t
pokeVariant[0].vt = VT_BSTR;# R, }2 k$ V. R) i, Y/ A$ U
pokeVariant[0].bstrVal = valueStr;$ ]. A$ v) d0 k
4 e) m1 E2 {9 I: K itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); p* B! B7 M4 z4 b+ _ VariantInit(&pokeVariant[1]); 4 S3 n, _/ l1 N* O
pokeVariant[1].vt = VT_BSTR; % l! T% ^. A: [6 U pokeVariant[1].bstrVal = itemStr;! t8 g, i( o7 O( w
! A9 ]% X- A7 w9 O9 ]% Z5 R topicStr = SysAllocString((WCHAR *) L"system");6 D' F& d. S/ Y/ p* |* p( b. R6 X+ A
VariantInit(&pokeVariant[2]); 9 E- f. ]8 b; }0 @* u+ S pokeVariant[2].vt = VT_BSTR; . g3 e3 I, j& s% D+ Y0 U) b pokeVariant[2].bstrVal = topicStr;- Q1 x8 o, t2 i' `& ^+ l
% J$ e5 i5 m& W% t+ P" e// Set the DISPPARAMS structure that holds the variant. $ q7 z2 |! w# x* U : g/ W1 B0 u! \' S! a( b; M dp.rgvarg = pokeVariant; # `0 G( k( P, r# | dp.cArgs = 3;; A& t% ~8 T6 N6 L0 I
dp.rgdispidNamedArgs = NULL; . ?. c! [8 \- t3 \ v dp.cNamedArgs = 0;* E/ N/ c4 H, W- J1 I) D
; K% F4 ]1 L9 n% |" `0 N5 \
// Call IDispatch::Invoke()0 V" g1 }# Z+ q" U
/ q9 X, M2 ]& f5 x# M" I0 O+ a
hr = m_pDisp->Invoke( ) a1 N) Y. w) m( I1 D! b- c6 ` pokeID,* T: |% T) P4 l( K9 u, I
IID_NULL," e7 Y, v7 b6 A# C3 U/ I
LOCALE_SYSTEM_DEFAULT, / f, k" ]8 o! L5 z% Q- D% B DISPATCH_METHOD, 9 Y7 h. v+ }6 k &dp, \2 T8 a5 F# d' V1 {4 h. J: O NULL, 0 ?5 T' {4 h$ a) l' J# I &ei,# e( y3 w+ U2 W
&uiErr); ! h7 j0 Z9 G4 W$ Z# @7 O0 Z 8 A) a# L# S1 h+ p8 z& [9 N SysFreeString(topicStr); ) a3 Z" D$ @/ ]. |* A( y, ?- P3 R2 Z SysFreeString(itemStr); ; q* j% Y$ `5 c" `9 z% u SysFreeString(valueStr);& c' U7 U5 S6 M# E7 W
+ o8 N4 m& w' j, J$ e! `2 u) l! Q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???) M& z4 k% ^ d+ F$ H! K
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???? 0 [8 s4 m$ [2 F) q5 f2 J4 p9 i. X3 h
. R3 J& v9 t0 t4 a5 h8 U
2.这是request的程序7 q4 L! Y5 I( g, ?4 I. V6 L
// Request a value from Extend X j/ v' y. T' o//( R1 u- [. p7 m* u0 J; e
// Initialize the variant that will hold the BSTR. Set the variant's P+ k+ m0 H% G: f
// type flag to indicate the fact that this variant holds a BSTR. Place the y, M @& n9 s4 W7 W
// BSTR into the variant structure.1 W- S; V+ n7 [) a# v! P ~; S; X+ g
& y/ e8 J1 J3 ^! s+ P( D requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ T5 M- o( y2 \1 I
# i& G6 P1 ?' H7 C% |+ m- F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, Z9 p$ ~2 X* ?* }* B+ a. s2 ~
VariantInit(&requestVariant[0]); 0 D. F; q9 v: F9 e0 W W0 F requestVariant[0].vt = VT_BSTR; 7 K% B" S6 ` K3 ]; Z9 | requestVariant[0].bstrVal = itemStr; . q$ t+ Z/ g7 t + l( W$ ?9 Z, I) O, h. ?5 W topicStr = SysAllocString((WCHAR *) L"system"); ; A5 w8 D% _1 `: { VariantInit(&requestVariant[1]); ' }, O; U* x& ^$ s# d requestVariant[1].vt = VT_BSTR;) F4 z$ L3 [7 v+ ~
requestVariant[1].bstrVal = topicStr; & a I% z8 b- o* k' R9 H. X$ @) r0 z
// Set the DISPPARAMS structure that holds the variant.# e0 S+ a% ]1 x% \; h6 k
|' ^) R: l. A, F) G dp2.rgvarg = requestVariant;; U6 s2 K. @7 O
dp2.cArgs = 2;+ ~9 L M' D `! V
dp2.rgdispidNamedArgs = NULL; : y( @' ~2 q1 T dp2.cNamedArgs = 0;; y3 b/ t. z4 D
' A( b+ z! I: J; [+ K
var.vt = VT_EMPTY; 9 i5 z1 p2 R1 A% W7 N4 ?3 q+ h. F* m- w! B
// Call IDispatch::Invoke()! ]1 a6 b' W* w& {
3 ^7 Z) p& u4 ], f. w* Z) e; I hr = m_pDisp->Invoke( ) U4 K3 H% ?- G$ u9 e" _) u. ~ requestID,+ q% `7 y8 W9 L0 a. F
IID_NULL,* x7 W- `, l/ H0 J' f
LOCALE_SYSTEM_DEFAULT, , [9 t3 t3 V: ` DISPATCH_METHOD, 6 p1 l* J& a! i: S( J3 s &dp2,' k q2 S& o8 q8 U1 B4 H
&var, 2 N5 @; Q$ b# h5 \" ~. P &ei, % L$ t' J9 n. d( s& z &uiErr); / F) m _, f s! R2 i; V6 S, h8 R
SysFreeString(topicStr); ' Q3 P- n/ p! i7 y: q SysFreeString(itemStr);: S2 U- U, Q# L0 K
请问该程序是获得extend里面的哪个值?- b w/ x. F5 H! {! n. l
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????