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: " p$ K% Z: j8 Y. `, GName = (WCHAR *) L"Poke";- T. o' S4 Y0 y8 v$ g3 R( s
& W& [9 Y- k2 X3 Y$ W
hr = m_pDisp->GetIDsOfNames ( 1 k) n' Z6 L' h IID_NULL, // reserved- f R3 T5 }, p) k1 Y
&Name, // Array of names to get IDs for ' z6 w6 }3 V. i' O3 \" _ 1, // # of names in the array + A- W# i' O& G LOCALE_SYSTEM_DEFAULT, // System locale6 q+ M# z2 c% `6 [" v6 h# v
&pokeID); // Array of IDs to fill on output; Z+ _- c) |% O6 \+ G
5 o s4 |( A2 W+ N% y$ t* ?
if (hr)4 S( x8 H4 a5 j3 L& P; x8 e; d. ~% Y
{ 7 M3 n9 U* w7 u% a* f Q9 Y4 _; I6 ~ MessageBox ("Get Poke Unsuccessful"); % p* }6 ?. m+ i) N0 `8 V return;9 Z( C9 M5 a1 U u3 L$ ~) r7 U
} , a1 e3 Q' f# l. y+ I2 [# C: S- F+ G
/**************************传递数据给extend**************************************/ % P9 ]* o' h/ M4 Y pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); & [, L" }6 r8 H8 ^3 F" P . A$ M8 k, s0 A: h% g! x* A4 t
valueStr = SysAllocString((WCHAR *) L"1232");7 {. H9 ]/ G. P6 d0 {, n
VariantInit(&pokeVariant[0]); ' B! O9 p& g# ~" g. f pokeVariant[0].vt = VT_BSTR; 0 [) U% w2 g! V1 Y2 K0 a pokeVariant[0].bstrVal = valueStr;5 V: k2 h. N, V1 H
" ~0 [6 J+ n. f+ \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 ^1 c& a3 V$ B3 }3 m
VariantInit(&pokeVariant[1]); * s g4 b) u: x' ^8 |# k$ C8 G pokeVariant[1].vt = VT_BSTR;! B$ ~/ q [. m3 @, X) K1 V1 |
pokeVariant[1].bstrVal = itemStr;, P" \) ]1 p0 m' N. v8 k+ u
" x/ w" J# T1 k( P' b) t5 ] topicStr = SysAllocString((WCHAR *) L"system"); 4 l2 T4 H8 T# \$ ]2 E% ]/ y! E+ p VariantInit(&pokeVariant[2]); # s I' {: w, M" M+ o1 n pokeVariant[2].vt = VT_BSTR; # ?- q8 r. J' D; H pokeVariant[2].bstrVal = topicStr; ) F0 i! D& y: z, x: F2 H% j W Q5 h# b; B, y# B" {
// Set the DISPPARAMS structure that holds the variant.) A6 S8 C2 S& G* v+ ]
! C' D& V) n; w% {" T& x- o# N3 ^9 N
dp.rgvarg = pokeVariant;6 _8 q4 }, ?$ k, R2 G" S G
dp.cArgs = 3; . E" P! d# f- m dp.rgdispidNamedArgs = NULL;$ e' e0 a4 w3 L( j. T0 k
dp.cNamedArgs = 0; ' k# \0 J: `7 F! P5 o6 ^1 u* u- m0 h/ y* ~
// Call IDispatch::Invoke()2 k# W% ?) G+ h/ M
; L6 J6 |" g f; B' q5 J7 d0 ~ hr = m_pDisp->Invoke(& D& U$ ~; B; t8 m" W7 J" @$ h. X, j
pokeID, 9 F$ z/ ?, D% ?% J; m% g2 N IID_NULL,' u1 ?3 W# c6 T
LOCALE_SYSTEM_DEFAULT, # i' y* m' K. U DISPATCH_METHOD, ) ^0 p6 [4 v* V1 M# n7 a &dp,5 e- I' f' t/ L. V. k; {
NULL, , R2 W) L5 S' Q; d" I &ei, ( E( E1 e( h' ~( `" c q &uiErr); # N8 ~$ e- |7 P* ^4 |+ ]) f ~6 Q) K4 M' ^1 H5 W) |$ C; |9 H SysFreeString(topicStr); 2 z2 K. d) n Y+ w% D' n: C SysFreeString(itemStr);+ Z! ~4 C0 O( m7 \% I: W
SysFreeString(valueStr); D& \. g+ x, N E ~; r3 Z$ e6 i$ j/ _
# z$ U' ]% k/ H
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??? & w. \9 F; L- K5 {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% m6 X; Z! z7 P( e3 n
9 D: Q5 f' @$ H6 ]7 Y7 K+ w8 w+ _& v+ I 7 q3 K5 d! S1 D# x6 Z2.这是request的程序4 K2 s7 o" Y3 h* A- S; `
// Request a value from Extend( {$ S/ C7 u7 C' [; ?
// & X; o, T; n5 M3 X// Initialize the variant that will hold the BSTR. Set the variant's ; B& X9 H& S7 \" P9 w" u+ W9 s2 Q// type flag to indicate the fact that this variant holds a BSTR. Place the+ {. e& @: G( M: {3 U- F# |
// BSTR into the variant structure.' |( L' V/ I% a( Z+ J
( z5 o/ @' p' ^: L/ U" j# d requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);" j& d0 n5 n0 d0 S3 j# b3 y- X
8 s7 \( o: T3 V8 y& Z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 k Z- U) T6 F) O ^& W" W" f
VariantInit(&requestVariant[0]); 0 v; U6 w8 \! E- p6 y
requestVariant[0].vt = VT_BSTR; + D; H1 D1 k2 j) ] requestVariant[0].bstrVal = itemStr; / J q( P# z2 |# h) n& P" j5 u" c& _/ K/ v( D/ |! k+ @% F
topicStr = SysAllocString((WCHAR *) L"system");0 T& m8 i2 y& Z& l+ O
VariantInit(&requestVariant[1]); : z8 T, Q6 j; w( W) E requestVariant[1].vt = VT_BSTR; ! w) C' T' Z5 E( U/ f requestVariant[1].bstrVal = topicStr; * h' m" C' l/ O3 U4 B- u ' y+ W+ O, y# e& ?2 e. W$ I// Set the DISPPARAMS structure that holds the variant.0 ]9 |+ ?& n2 W5 u/ A. U' p, q
8 @/ K$ j: S- |9 W7 P, I7 v$ A
dp2.rgvarg = requestVariant;4 k! G% \2 R+ }2 d! Y. \6 Q& R6 l
dp2.cArgs = 2; % X" _; p# w3 F# |. t# R; V dp2.rgdispidNamedArgs = NULL; o- ^1 p: h% U7 e
dp2.cNamedArgs = 0;1 F4 h7 L6 j& A4 Y/ y* b
+ q% R( ^. ~ }* @* Z' ` var.vt = VT_EMPTY; - }9 `+ U8 [8 y5 Z" \; M9 z- c : t; e/ Q9 C& u- _// Call IDispatch::Invoke()2 `. E8 Z5 ^ t) {
- i) S4 }2 G' E/ P) O, Z( C4 H
hr = m_pDisp->Invoke(8 d% G. h _' o3 r. i9 L
requestID, ! X; h* g- F4 c* e: G% Z IID_NULL,5 r5 p' p" s) t$ _3 N) x: K
LOCALE_SYSTEM_DEFAULT, $ F9 Y1 p- D' s DISPATCH_METHOD,1 H/ ]% a# E: k. W" C
&dp2,( d, m6 s* c9 V5 F5 J
&var,- ~+ @1 X5 i% M+ D. {1 ^
&ei, ; {- H1 ] s) I9 f; C5 a &uiErr); 9 \1 M& J" ]5 E5 | $ {6 J ^% g9 Q5 G4 d- J SysFreeString(topicStr);( B' [8 D$ R- ~6 L" E) v1 S
SysFreeString(itemStr); ( c3 V: }! m( `1 r* t请问该程序是获得extend里面的哪个值?$ K. v7 d6 s0 p# s- Z- X0 t' {* X' x
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????