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:' I+ v9 g# _& ^+ z
Name = (WCHAR *) L"Poke";) e2 B5 g, d7 u+ H! |
4 W4 b- W, ?6 J9 R M5 ?0 t& {
hr = m_pDisp->GetIDsOfNames ($ L# R. _" j3 Y, b) n4 _" b
IID_NULL, // reserved3 z3 H9 e3 T* o( v7 n7 T
&Name, // Array of names to get IDs for + p# f& }/ P4 a9 z, O2 @5 j' B 1, // # of names in the array p% u1 k# N) U' k/ l
LOCALE_SYSTEM_DEFAULT, // System locale + H+ P- B0 e0 q* W# j &pokeID); // Array of IDs to fill on output 6 p" @6 f& D( |4 p + Q* R7 @. {) X! q8 {3 k if (hr)! B" }5 U; v$ c+ p& h9 Y( `
{ 5 k6 o$ P5 J0 P$ }* l MessageBox ("Get Poke Unsuccessful");# O4 U; F8 Z1 H( u
return; , J$ v4 O1 `* ~/ F5 R } ) F+ `' T; O7 p9 m& }9 t 4 Q4 K1 j7 y' U6 l! b- Y! f5 v/**************************传递数据给extend**************************************/ ; b9 a+ @. E& p; c% v8 z, M9 A' I pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); & ~! x4 p: M: n' ~+ t* K8 T3 C 7 V- j4 a- }3 C/ C: K valueStr = SysAllocString((WCHAR *) L"1232"); ( k/ a& `3 D( [) u7 |' H2 `( ~ VariantInit(&pokeVariant[0]); & P8 n0 r4 _) Y( N7 |# S0 l
pokeVariant[0].vt = VT_BSTR; : \( L/ g9 b; g* T v pokeVariant[0].bstrVal = valueStr;8 S3 z. \- h$ q: G
" u+ p& X$ j( Q H1 G: Y) ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 [& n) S' G2 P, A9 V' ]+ {1 g s) R
VariantInit(&pokeVariant[1]); " P; K! m' X' B* Z pokeVariant[1].vt = VT_BSTR;8 B# @+ _3 n$ l8 v: L
pokeVariant[1].bstrVal = itemStr;# I4 ]5 G3 J) L" b7 R. V% P j
; c1 a) T2 S' V; E9 M topicStr = SysAllocString((WCHAR *) L"system");) {4 D2 S# p2 W: E1 Z6 C
VariantInit(&pokeVariant[2]); $ X, a% m0 [6 |1 S: ?
pokeVariant[2].vt = VT_BSTR; 7 O( p4 \. ]+ T$ s# w; @ pokeVariant[2].bstrVal = topicStr; : i; T' m- P6 @ ( a( l7 r: t; B) E// Set the DISPPARAMS structure that holds the variant. 7 i, P! S3 M( V5 O2 @& L' h* U; D6 u* m# t5 j
dp.rgvarg = pokeVariant;/ x# h' s- _' q8 [
dp.cArgs = 3; , c1 e/ ], q H$ m dp.rgdispidNamedArgs = NULL;& F* ]( M/ ]. J; j( ]$ T( n# i
dp.cNamedArgs = 0;, ~7 W; X8 D0 G/ |8 ^+ Q% O5 {
+ t( ?3 s& W0 X8 F
// Call IDispatch::Invoke()( A M" z2 i+ p
! |! `& d0 N2 y5 C
hr = m_pDisp->Invoke(8 C% T6 {$ T1 O# `4 C8 s! `( A
pokeID,8 Z5 c* K c* e( ]
IID_NULL, z" y/ I6 f6 B, F- Q: X2 B LOCALE_SYSTEM_DEFAULT,3 l! U& e M8 X- S
DISPATCH_METHOD,' p, h- v6 c2 d$ M5 \0 S. g1 I% [
&dp,, G" a; B- N! F) Q( Y
NULL, ; P: u! B5 \. T& i# X r &ei, ! V( W$ e5 u; O; J* O% Y& Y* ^" B0 ~ &uiErr); . w; e* @8 X/ C: U) ?* v4 l. |" Q1 v" m6 t$ H1 w
SysFreeString(topicStr);/ @* |2 n" ?& [ [' `% R
SysFreeString(itemStr);6 Q. y' n4 s4 W& [, C
SysFreeString(valueStr); 2 S* A1 k9 D! y& l7 i. w, |" t 3 }& a8 b, Q2 ]. \/ X! v. A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???; n$ B# c" }5 e) y0 r1 o# [& ?
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???? 1 `1 R9 m& l, n6 {& m) }+ {3 N! K7 ]" L, m5 f9 |+ B3 p! R7 Y
1 v( m; T6 d+ ?; ~& q( y4 U$ b0 M) q2.这是request的程序9 F& ~; [( T/ c! [! u
// Request a value from Extend- v% t" r0 |* O! ]$ y% o+ H
// 0 m& Z9 C( p, @. m$ f& [// Initialize the variant that will hold the BSTR. Set the variant's5 E! r5 L7 e3 d J! Q: @
// type flag to indicate the fact that this variant holds a BSTR. Place the 9 T2 M. V: v& [# l// BSTR into the variant structure. 2 M2 ]+ G+ J) B# }! O# x " j+ u* I8 o1 M# g- G requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ H8 Z A5 w/ u j. R. [
" p3 \4 j* q% ?( q% r/ ~+ |3 F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" f7 k6 q3 I% l7 `- P
VariantInit(&requestVariant[0]); 8 B& W4 B8 n. l. T6 v; K3 ` requestVariant[0].vt = VT_BSTR; + K) Z. R. D. h4 s6 h requestVariant[0].bstrVal = itemStr;* ] |2 o1 Z2 H) A. t
: \: S7 J# U! S( _" A topicStr = SysAllocString((WCHAR *) L"system"); ( ]. k. k" A9 T5 [ VariantInit(&requestVariant[1]); , Q# k& g. H9 k9 Z( s% @4 t& L requestVariant[1].vt = VT_BSTR;( z3 S' U& ~6 Y9 d2 K/ L
requestVariant[1].bstrVal = topicStr;1 N: |/ Q3 p3 `' V- L
4 F$ P! E K0 O5 V3 v5 ^* H// Set the DISPPARAMS structure that holds the variant. 1 L: H+ P( \. L/ F, ? ) \& |, M6 `1 W, A8 U# K dp2.rgvarg = requestVariant; 5 ^9 z j3 k, X1 S- Z5 G8 I; \! M dp2.cArgs = 2; {* B+ O" m( T* e; v A- D
dp2.rgdispidNamedArgs = NULL; " E3 ]4 I; x4 D. ^. } dp2.cNamedArgs = 0; ) o. X+ L6 k* b% `' F + s% p# h- f+ `; @5 T+ ?! @8 j: y5 Q var.vt = VT_EMPTY; 1 b5 i' U' l1 W! c( T- o$ T$ k& o1 g" m: ?* c8 l# `9 a$ b+ c- Y3 r
// Call IDispatch::Invoke()- Z E/ r, N u
3 K6 j7 T6 S8 I: r0 \- t4 `+ L hr = m_pDisp->Invoke( $ r; G! h u& s3 Z" E- r, } requestID, $ G+ u0 H. F' P r: z+ V' @. J3 F6 _0 p IID_NULL, 6 o! {* ?# g$ l* ^+ L2 M LOCALE_SYSTEM_DEFAULT, $ g# Y& [6 P- g, ] DISPATCH_METHOD,7 }2 e) u! K0 o, O7 G
&dp2," X& F' G q! \4 q# D7 {7 [
&var, ( |1 y' |- _! [; G% o) x- ^% w &ei,; S" G# o5 y6 }9 B. o6 K7 x8 }0 p
&uiErr); . r! [/ r% I" n; @- W( j* ]$ Q+ s. n& L/ m7 K! o$ B% F% x, E( q
SysFreeString(topicStr); 7 e5 B4 t! | `: Z4 U SysFreeString(itemStr); 0 }+ ?: `9 S$ m. Z6 t请问该程序是获得extend里面的哪个值? / s# g* T. c; b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????