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: 4 ?* o0 I! s% k! K1 ?Name = (WCHAR *) L"Poke";: M6 J, i2 J* f+ P" F: V# N8 h
5 d1 k2 K3 {. Q1 w
hr = m_pDisp->GetIDsOfNames ( 5 {1 k' ?0 u6 m7 u/ B$ j. T IID_NULL, // reserved: O! f9 n, f- m
&Name, // Array of names to get IDs for $ K2 n4 b# ~" a" t& Z V% U, p6 u 1, // # of names in the array9 o9 L! A" J2 @# y, t
LOCALE_SYSTEM_DEFAULT, // System locale( g! v( }: b8 U; Q3 S7 U" s$ [* Y
&pokeID); // Array of IDs to fill on output4 t" U; K/ q2 P* ]+ z1 r7 l9 z
4 U( b' r8 \ B4 } if (hr), |" {9 S; Z/ z* h. e
{ h' y/ y: \) e: b W, Y8 j* b. Q$ x
MessageBox ("Get Poke Unsuccessful");) g# R0 c W" ? I" [- P# v7 f u
return; " ]1 l1 _. O) l }7 g# n8 g z& |; |' ^1 S
7 v) ~' N& |8 `& a& N# {
/**************************传递数据给extend**************************************/% k& _6 m5 ?+ u8 M# n2 N. b' ?
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( g0 G# t+ M: d6 Z# v8 g* D 7 Z }( S) u2 \. D( _6 c5 K- U# C5 t valueStr = SysAllocString((WCHAR *) L"1232");* U; U# c8 X7 _4 r
VariantInit(&pokeVariant[0]); ; C7 t( I( Z3 N! s pokeVariant[0].vt = VT_BSTR;+ p1 G/ ?. N9 j6 _! k
pokeVariant[0].bstrVal = valueStr; - a; \# m+ S" G# }0 H5 D/ c. t0 d. J2 ]0 e. ]/ K, `3 M/ Y
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: c# a/ g% z( b
VariantInit(&pokeVariant[1]); , x, R7 R& J! m: C
pokeVariant[1].vt = VT_BSTR;* S' R. p. y& T A1 Q3 B
pokeVariant[1].bstrVal = itemStr;+ Z C4 G7 E) g1 n1 @
3 S1 K; T0 `# m+ |+ i: P8 X
topicStr = SysAllocString((WCHAR *) L"system"); b& d# X* ~6 b) l. e' c
VariantInit(&pokeVariant[2]); 3 ~) M w3 `) s! O
pokeVariant[2].vt = VT_BSTR; + Z" v j4 Q& g. `; \5 p) } pokeVariant[2].bstrVal = topicStr;$ R8 ]+ G" a" E6 L
6 I- w0 g8 I1 W/ T// Set the DISPPARAMS structure that holds the variant.1 ^2 l$ `( Y4 |/ N4 |2 S, J
; [* e, v) G+ S& a
dp.rgvarg = pokeVariant; & s; \% a6 M/ \4 Z dp.cArgs = 3; 3 O1 Z9 C; O! W8 x; V1 d7 d Y! I dp.rgdispidNamedArgs = NULL;; w1 \' F! B" {
dp.cNamedArgs = 0;* r4 {. H7 `9 H }
% n' z {$ }, R* ^1 s// Call IDispatch::Invoke() 3 h2 l9 i' m) t/ A3 i4 R& t % U2 U, u, c% S0 V* R+ T6 b hr = m_pDisp->Invoke( ( E' K2 X9 o: M pokeID, 5 v `2 [( W0 t! z- \- R' j IID_NULL, ; x0 D( s R+ ^0 H! e* ]9 I LOCALE_SYSTEM_DEFAULT, , q. y. \, r5 n, L6 M0 h DISPATCH_METHOD,5 J: P* O& f( m {% d* i
&dp,1 g. q2 e; _# E- V* i: N8 ]% i) A
NULL, # E& I% ^2 [ [, U: U& P% y" _ &ei,. ^7 @ L* N; \' e1 |
&uiErr);0 }: q% `! }$ {
* [6 g$ U: S5 Z; q8 @
SysFreeString(topicStr);3 l4 ?9 H* K$ K0 x; C9 A1 {6 R Y
SysFreeString(itemStr);3 X, E8 m/ X3 f
SysFreeString(valueStr); . A7 m5 p, K$ ?8 N# s: @' S - _1 y5 y! L/ I; y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??? : e3 _ s( w7 @) @0 l7 n3 z2 l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???? # M, d' j" O% l: _3 n! a5 E& l3 r: ~! ^1 Y( F$ U! V' }; I
" z+ x6 y3 D( J. `* f: I
2.这是request的程序 3 Z5 t0 ?1 \% M; a. H/ L// Request a value from Extend 4 f+ ~/ ^2 L# p//1 ?" n) I% @7 l8 g* k0 p: U
// Initialize the variant that will hold the BSTR. Set the variant's $ `* Z' B4 F( c/ y// type flag to indicate the fact that this variant holds a BSTR. Place the , {' k5 b0 Q1 r8 p2 b, P# r// BSTR into the variant structure.+ n' [ E0 m9 {: m8 h3 K
+ A/ D. B5 H: E; d a/ W
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 F! |: S9 y5 y, b3 \; n( i0 {4 E& ~3 C
/ E( M& d& W% p# _! |) v itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & u5 y6 l- W( c# |3 _9 f) C VariantInit(&requestVariant[0]); 4 X% B% L% u; p# ~4 d
requestVariant[0].vt = VT_BSTR;+ f7 i* w: f) ^- w6 a
requestVariant[0].bstrVal = itemStr; ! J' ^% B; A* N% |5 m& T; g# [3 r ; d$ Y/ @3 Z- y3 K- A! S topicStr = SysAllocString((WCHAR *) L"system"); 2 @* I0 z1 R7 ? o u \3 [# Y VariantInit(&requestVariant[1]); `! d1 m$ p" v6 d4 K8 w z4 B
requestVariant[1].vt = VT_BSTR;4 M" |4 s5 n( a3 T; f' L5 _
requestVariant[1].bstrVal = topicStr; 7 ]% f+ ~, r& b) A# i9 f5 A) W2 d% O# x: P( N9 [* x& s
// Set the DISPPARAMS structure that holds the variant.' H1 q, m3 e$ V' h& A8 {4 n
5 A9 w. |3 S: \' f0 @; k/ e
dp2.rgvarg = requestVariant; 5 A" A) l6 }4 }- U dp2.cArgs = 2; 5 g5 T5 U, i' s" K8 M8 C3 D9 U" O dp2.rgdispidNamedArgs = NULL;- Z* O- {1 f C
dp2.cNamedArgs = 0;) k/ i: C: W8 G6 D3 I