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:" S" y' ]2 m& p( S. ]
Name = (WCHAR *) L"Poke";: }2 i, F0 ]4 h. w- ^; D
& n; g) d; R3 `% t+ g, @ hr = m_pDisp->GetIDsOfNames ( 4 \7 U% L# {5 G# F/ E$ q! s& D# w IID_NULL, // reserved( O: @# P% R" O
&Name, // Array of names to get IDs for " j5 u; c6 [2 f8 K3 @6 M 1, // # of names in the array - d7 M! \$ ~" p0 _, e LOCALE_SYSTEM_DEFAULT, // System locale0 B, x& o# [( X1 Y& Z, {/ ? ` t
&pokeID); // Array of IDs to fill on output K7 O; m V: g( u' t) J0 C; |: I; c" D * f* R7 I" \* s if (hr): ^4 Q8 w: y0 k( }% w
{3 W8 n9 F8 w/ j* U9 V. I
MessageBox ("Get Poke Unsuccessful"); 5 F- j- h' x5 D1 B! d" G return;6 q" d0 ]6 @- d$ |5 Y. Y) _
} H# V& L+ ~ t; e* V
. I5 B' e/ |5 y# U7 F/**************************传递数据给extend**************************************/ # ~, S! R) f6 T1 P; P pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: {) u8 U) N$ x
6 u' ]! H9 U. q; l( C" X1 Q valueStr = SysAllocString((WCHAR *) L"1232");% x K* s F& [8 O: g, d ^
VariantInit(&pokeVariant[0]); , m) o" E/ i' J
pokeVariant[0].vt = VT_BSTR; 7 `5 G. `. z! _0 k$ K& \ pokeVariant[0].bstrVal = valueStr; \( w1 `$ j: a3 K8 D
& U" v! h2 [2 |5 ]6 x* F9 N
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : ?2 L% f$ U" n& w, O VariantInit(&pokeVariant[1]); + f- E5 I0 L E. @+ j
pokeVariant[1].vt = VT_BSTR;$ j+ q8 q6 w4 d: @# N. }( _" w
pokeVariant[1].bstrVal = itemStr;3 ^3 n6 \5 c; v$ Z
% F+ D0 c$ s0 o0 R
topicStr = SysAllocString((WCHAR *) L"system");7 e( d& I) C0 p: O$ i
VariantInit(&pokeVariant[2]); ) A1 f: O1 U, B+ w0 @, B/ |5 Y
pokeVariant[2].vt = VT_BSTR;# q3 F) | e: G7 d+ b- C$ O3 C" f& W
pokeVariant[2].bstrVal = topicStr;& }# e' ]/ Y7 k9 G5 C- }
' X5 Q5 R5 ?4 S s: Z j( `, m
// Set the DISPPARAMS structure that holds the variant. V) E" Z5 D+ r& u' Y' `! O 2 n" m! r7 a) O& [ dp.rgvarg = pokeVariant;4 M" Y Y6 s4 R5 @4 L& z/ Q/ C
dp.cArgs = 3;; ~5 R! _% B" ]. `
dp.rgdispidNamedArgs = NULL; / \! c+ _. a- u8 q$ t9 C2 h dp.cNamedArgs = 0; 6 g1 ]1 n0 _% D) v * U' y( r. b5 ~// Call IDispatch::Invoke() : \; v& V$ ]& `8 k3 K6 z8 @/ M- h }1 [' a7 W7 w3 u
hr = m_pDisp->Invoke(( F' M \! ~9 A# W7 a
pokeID, 8 l [+ L* G1 Y$ z8 V IID_NULL,* a& f* |/ X+ C6 _+ {
LOCALE_SYSTEM_DEFAULT, $ c2 G- M& Q% @7 m9 G, b DISPATCH_METHOD,8 V& d: L' F- C! ^/ x- M
&dp,5 Q& i, E% ~6 v) B% I1 }# T8 X
NULL, 7 f$ e3 \4 E/ L, a6 V% ~) x- ^ &ei, 1 Z5 k! B9 U, {0 ~ &uiErr);# Z2 r( v+ d, z3 I* K
+ ^% `) C1 L" w- M$ f5 {+ z5 d
SysFreeString(topicStr);$ p5 p7 _* B' G
SysFreeString(itemStr);; U x# e5 f9 j& S9 b" b+ s
SysFreeString(valueStr);# U0 F I2 @1 M1 ?
3 M6 j9 u7 n8 C; e
现在这个程序可以实现将1232这个数据发送到extend,extend有一个对话框弹出并出现1232这个数据,不知道这个对话框为什么会弹出并显示这个数据??? ( k7 J6 D- D4 ^此外我希望将这个数据赋给extend程序里面的一个变量,请问如何实现???? # \) t! `* p, h& k0 Y% j . p. j& I+ Y2 e* g7 e3 b( I$ d! j+ k+ k& q- _" h
2.这是request的程序 / y, x7 Q$ h' F// Request a value from Extend 7 d1 z3 T! Q+ M9 r: `//# b% f9 u+ ?- D& C
// Initialize the variant that will hold the BSTR. Set the variant's % R5 k1 d6 A8 c$ c% L6 ^// type flag to indicate the fact that this variant holds a BSTR. Place the0 n- K9 {; h# o5 E p
// BSTR into the variant structure.& i7 J, J) T& s( x
+ W# q- A7 E2 y3 k' z. [/ L" Z$ e3 B! ^ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 0 c& I" R% E: _, M" y; d9 y 0 ]/ `( v0 `3 I- t! m itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 u# K3 D( r; \6 ` VariantInit(&requestVariant[0]); 5 P3 T; ?. C! l( |$ b
requestVariant[0].vt = VT_BSTR;* q+ e4 `% J/ t) }; p0 b& x
requestVariant[0].bstrVal = itemStr;5 k9 O e4 D4 M) d8 F
9 k9 b. h7 y. ~9 S @/ w
topicStr = SysAllocString((WCHAR *) L"system");, G8 Z/ T% D- f4 v- P) K# @: {
VariantInit(&requestVariant[1]); : l/ z# y2 ~! a: p [5 M
requestVariant[1].vt = VT_BSTR;$ |5 A2 g* P, T
requestVariant[1].bstrVal = topicStr; + |2 j7 ?. w9 ~/ U4 i7 ]: Y& F1 p, M ~- ^& Z) m/ }* {
// Set the DISPPARAMS structure that holds the variant. ' e' ]+ Y2 Y" b9 j/ D3 {) i ( B. ^8 t: g$ r/ v1 \. C: ?) Q dp2.rgvarg = requestVariant;: s: Y3 r7 ]+ L ~, P
dp2.cArgs = 2;1 l6 _8 _2 l* c2 O/ P- \1 q
dp2.rgdispidNamedArgs = NULL; 5 z2 O; x5 j7 r3 U: E% u( e dp2.cNamedArgs = 0; % y( ]5 P. d; q7 M! q- x' h. S! q. A" X+ J* z8 D$ s
var.vt = VT_EMPTY; 1 A' k: R* _* v2 Q- m) J1 U, l4 e b2 A" p7 S3 ]# h' O# m
// Call IDispatch::Invoke() ; l" p) w, ?1 o- m) q8 p" |: F/ N4 A, m6 [( R
hr = m_pDisp->Invoke(: z* H0 w" R; i+ R
requestID,% l# P; O8 b" G! F3 j* N
IID_NULL,9 p# B+ S) q1 s; O6 y
LOCALE_SYSTEM_DEFAULT, . o. a! t0 r" P: k9 e DISPATCH_METHOD, ' U8 X) n, q2 x# [4 m U( l4 _6 M &dp2, 3 }$ K# b/ D# t; i$ t) a8 S. ]" L( I &var, @9 \$ P+ ^1 D+ V; ?. q
&ei,6 h: U$ ~! I/ [! u8 ?5 C
&uiErr);& _/ j( L I/ e5 y$ k) Y# M$ [