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:* X+ Y9 {. B) K2 q' ?
Name = (WCHAR *) L"Poke";* a, H9 a0 N1 e5 l
) ?' i$ R- c( M+ l6 `3 T hr = m_pDisp->GetIDsOfNames ( $ Q+ _7 ^) y; o IID_NULL, // reserved * L, N5 t9 h" _ C" e &Name, // Array of names to get IDs for , n. R3 S, e& q6 |9 n/ m' V2 F 1, // # of names in the array& ]/ o$ b; }1 k3 x0 ^4 b; v @
LOCALE_SYSTEM_DEFAULT, // System locale& V; R9 q/ [, s7 V$ h
&pokeID); // Array of IDs to fill on output , V/ }! W9 Q) r+ e$ d 8 g5 |6 X4 ^# W. \( J
if (hr)" }" `9 y8 q% N( Z' V6 o
{( A" {$ \' ?$ [( H
MessageBox ("Get Poke Unsuccessful");8 N! I8 }) f$ F
return;2 c! _, v' L u
}7 m1 V y% w0 W
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/**************************传递数据给extend**************************************/1 |9 Q e# v/ ]6 `
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, }' m3 R4 q1 |0 Y) U2 p
. M m4 X& [- k1 Z0 f2 N, K valueStr = SysAllocString((WCHAR *) L"1232");0 s7 Q6 T" e) Q1 B2 D
VariantInit(&pokeVariant[0]); - d0 E' W6 e$ ?" L7 X5 U
pokeVariant[0].vt = VT_BSTR; T) g# v# h2 `3 M& _) m# ? pokeVariant[0].bstrVal = valueStr; 5 U- P) q1 a6 k5 m0 v6 K) L; l $ _5 v0 @: }$ I6 a9 U. ^, S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . y: G7 c7 Y4 g: a; X) V: A VariantInit(&pokeVariant[1]); 2 I p0 T! k8 F- @( O- I pokeVariant[1].vt = VT_BSTR;, {* l) H# K: U) c& h
pokeVariant[1].bstrVal = itemStr;, [! w/ q* r; a; c5 y! ~3 O5 J
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topicStr = SysAllocString((WCHAR *) L"system"); / I* m4 d$ ^% x8 j R VariantInit(&pokeVariant[2]); : l; ^* q/ }+ y$ L$ j* \ i o pokeVariant[2].vt = VT_BSTR; # d3 k: o, ^2 l A9 e, m( e pokeVariant[2].bstrVal = topicStr; % {( R$ X# @6 Q4 H' m% s% w2 Y$ i" l* k( p# V
// Set the DISPPARAMS structure that holds the variant. & l$ N. ]8 ?' ]1 z* z/ q3 N. `7 B' K/ Q' l' }" X8 B! M @
dp.rgvarg = pokeVariant;# x+ p) ]5 s9 i5 A9 U9 y
dp.cArgs = 3; 3 y# z( ] z) i* k dp.rgdispidNamedArgs = NULL;6 P) d' u2 a( u( t* B: c: g9 t
dp.cNamedArgs = 0; ' C1 K- V" c8 P2 _; y3 }4 S( H. G8 k, B% }2 Q7 x
// Call IDispatch::Invoke() 1 o9 Z5 r. i5 N$ V7 X% ~, E+ O 2 P S3 z9 `) D: C$ p hr = m_pDisp->Invoke(4 P+ S3 I3 R4 ?" _1 ]. V
pokeID, + L6 _0 K2 v% W$ o! Q IID_NULL, 3 ]0 m( d' q/ \/ f LOCALE_SYSTEM_DEFAULT,5 p5 S3 K; M0 ?+ `- {# U% X
DISPATCH_METHOD, 6 _3 i: C( u) b k &dp,4 q! o5 y7 Z& z+ d
NULL, ! F6 l( N j: ~; N &ei, 7 U& @$ ?# h+ ~$ R, l+ u &uiErr); + A- E6 c# w* y6 o9 z1 u% k$ h . j2 Q! u+ I! J) w- z SysFreeString(topicStr);% g- i* I# T9 j( f
SysFreeString(itemStr);: [6 w' r- x$ ^* \0 k1 j4 K
SysFreeString(valueStr);4 s8 D+ y5 v' B! M. Z/ B7 s
6 s" Y; A4 t7 U( \$ q- r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??? $ r4 `& N! q, B, Y( n! g/ a$ H% z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???? / Q: o% y. `; v2 ?; R8 S. Q5 Q+ z3 L0 P/ D/ S7 l
" G5 u) Q* V4 K2.这是request的程序 ' E# S8 w% t* L// Request a value from Extend2 P2 ]4 G. t( X4 P! w+ R
// 6 e6 I( B, ]$ d/ U5 i// Initialize the variant that will hold the BSTR. Set the variant's/ v! K( G, T8 r, u2 Q, A7 p
// type flag to indicate the fact that this variant holds a BSTR. Place the : h7 o8 T& X1 S, p// BSTR into the variant structure. 9 c9 Z0 B0 E1 H' m+ r8 O( O. e! i' B" a, z5 T# O2 w x8 r
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);" ^0 Z7 P! A8 f. h( ]3 z3 T
% O* L3 D0 e9 g/ _0 h- `6 S8 F `" K& ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 ~8 P0 Q6 W6 G/ E) l VariantInit(&requestVariant[0]); ) S- z$ G: J# _ requestVariant[0].vt = VT_BSTR; - q* Z+ j/ q' r# z7 R requestVariant[0].bstrVal = itemStr;" ~: E. Q, J! X
! K6 p0 A# a. c# Y. E& x5 [2 h topicStr = SysAllocString((WCHAR *) L"system");0 O9 p1 c' l+ j) l
VariantInit(&requestVariant[1]); 3 \ W5 \; j8 Q2 ^/ n0 p: u requestVariant[1].vt = VT_BSTR;9 \$ j# u: M; S* ~* e
requestVariant[1].bstrVal = topicStr; 5 f2 R$ a& V5 a8 w, U$ f" F1 t7 t/ ]6 \
// Set the DISPPARAMS structure that holds the variant. % Q% k5 q: M5 r" B2 ] 3 J7 m: q! F3 r o+ m4 w dp2.rgvarg = requestVariant;; q8 l% m! P% X; t! j
dp2.cArgs = 2; 5 y/ g2 @/ g" K dp2.rgdispidNamedArgs = NULL;3 _0 S3 h) {4 {5 s7 n
dp2.cNamedArgs = 0; 8 g& o& D: u9 C R: z* z& j$ O( Q8 Y1 a
var.vt = VT_EMPTY; ) M. k. d8 ~* N4 b, s- e0 W 0 d( g( w% Y9 n! R) m. ?7 I9 q// Call IDispatch::Invoke() ) |) P; D* L, q" s + u, o& F9 i+ o3 h! k9 o hr = m_pDisp->Invoke(6 M. E3 y. N8 H: o( k% P* M6 r
requestID,7 {2 v* Q5 q8 @- b }# I
IID_NULL,7 |2 Q' g2 E' c/ s! {" t# k
LOCALE_SYSTEM_DEFAULT, - a& L, G! ^ y9 C3 L" y, T0 v; c DISPATCH_METHOD, ! c9 z3 ?$ \- w8 L# G &dp2,. x* L# ~3 q, {/ T- n. C% O3 p, f
&var,0 }8 e0 A+ L& K$ b B) k3 c6 F- A% ?" `
&ei, ( C3 d6 Z: R) ~. F &uiErr); 5 \5 s( k5 G$ o' g" b. o$ }/ p9 T- a2 }/ H" X4 R% D
SysFreeString(topicStr);- Q( d. m5 t9 z! ^: T: u
SysFreeString(itemStr);: c- P0 V) a3 _$ h% E7 i( ^8 k
请问该程序是获得extend里面的哪个值? & P1 g6 m1 P4 X& N! P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????