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:7 N& u1 k" l7 c4 g# L3 \
Name = (WCHAR *) L"Poke";1 q+ ]. R3 L4 k
+ P. O2 }4 G/ I hr = m_pDisp->GetIDsOfNames (3 H# _( y y7 E `: p7 T8 F8 c
IID_NULL, // reserved( [5 k3 W6 D T+ t0 m
&Name, // Array of names to get IDs for # D, [5 c5 t) O! ~ 1, // # of names in the array) z$ R* d* Z$ U
LOCALE_SYSTEM_DEFAULT, // System locale " s2 I& T4 l L &pokeID); // Array of IDs to fill on output " I `% Z5 i0 T$ P6 W/ X + U" b. N2 R/ |4 l+ Y( ~- S- u
if (hr) . C4 K8 _4 D/ J& V3 Y {2 \, }! A. t, A3 J! D7 q
MessageBox ("Get Poke Unsuccessful");0 g. A$ j5 y; y9 N0 B( q' P
return;* g5 V8 s+ c1 J; J8 K
}2 H$ `0 t( t+ y$ ]( }
, i1 B. x v. E( W/**************************传递数据给extend**************************************/% z# z2 O9 j6 u8 K/ {
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ; F: Z: x; B5 g3 P& {$ P/ P $ Q. m2 t* A# @3 i4 t
valueStr = SysAllocString((WCHAR *) L"1232");2 r) V0 O( I1 T, ?6 O/ m) n0 W
VariantInit(&pokeVariant[0]); 6 Q. [+ m6 ~5 z+ i8 ?7 a5 ^ pokeVariant[0].vt = VT_BSTR; + N' u2 l9 g9 ^/ h a# g pokeVariant[0].bstrVal = valueStr; / h7 R4 R) V: \; L' T9 _+ P# o8 L8 b& P& Y# }
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ k5 f+ x- U' b G( `
VariantInit(&pokeVariant[1]); 1 d& c: d4 r3 n$ U" k% @4 k. M
pokeVariant[1].vt = VT_BSTR;& i8 x! X- l4 x& A
pokeVariant[1].bstrVal = itemStr;2 x. A8 O, u' V1 q* N
( d1 g4 b2 L& n6 s topicStr = SysAllocString((WCHAR *) L"system"); ) `* l9 a; s/ z8 x% t" i VariantInit(&pokeVariant[2]); : C: _, d$ p8 I, A# i1 D# @ pokeVariant[2].vt = VT_BSTR; - y4 }' L3 N5 L% a) A' {$ ^ pokeVariant[2].bstrVal = topicStr; 9 H" l: S- M, D# F : r( {2 h( b' t, F3 x// Set the DISPPARAMS structure that holds the variant.; m. A* w9 H0 R+ F( `
' o0 ~, l# y0 Z3 F- R dp.rgvarg = pokeVariant;; @, \/ e/ M; c8 Y$ Q& c
dp.cArgs = 3;, P0 i5 u" F3 ]( H* S/ J9 `
dp.rgdispidNamedArgs = NULL;$ @% P9 c, s9 H" d7 x
dp.cNamedArgs = 0; , I0 P# o- D# V: c1 ]! `( z 0 Y( B/ t4 @3 l0 g7 T// Call IDispatch::Invoke() w4 r E4 k5 k, r! g& A7 `6 y. l" o9 P
hr = m_pDisp->Invoke( 2 V( p" p7 l- q4 {5 s. w pokeID,% I9 @" e, a4 I0 I% P9 f; }
IID_NULL, ) \* P! m8 e+ W) l$ v+ G0 { LOCALE_SYSTEM_DEFAULT,$ L5 Q5 T6 a. J( I- j7 j& g+ w
DISPATCH_METHOD,6 y/ j& Y$ v2 z; c# V @9 C4 @1 l
&dp, * c2 O# d& E/ w- ` NULL,! E' n# H9 O9 \8 W k$ W+ }4 M
&ei,: f" f1 s. i* _: s6 u% u+ s7 c
&uiErr); 5 E# [; d2 x# z" ?, I) b7 L! {* l+ P1 S* s
SysFreeString(topicStr);2 i% k! J% Z4 f3 |4 O8 G
SysFreeString(itemStr); 2 k, m8 O7 R. ~* o- s SysFreeString(valueStr);- _. f/ s2 ~( B
! K" J$ P Z i v2 X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??? . a' B5 \# l' v/ s" V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???? o. p2 o7 k& q0 N0 t" V
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2.这是request的程序 : \4 W5 w' {, I$ \+ T: o' M// Request a value from Extend/ Z" H- M, l' X; o$ F
// # S) v7 u" X# z' z( [: q' D// Initialize the variant that will hold the BSTR. Set the variant's1 d! U& R( s) K) K( M( ?
// type flag to indicate the fact that this variant holds a BSTR. Place the 2 H8 n; i# n: u# Z8 A }* b8 K// BSTR into the variant structure. 2 M% l' c9 y3 M8 S 9 z) g8 r: P" o) _4 S requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);" K; z. q7 b: j; s5 |; M
, F( j- a# n, {* E5 b0 C
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . b" |/ }' A! ? VariantInit(&requestVariant[0]); , H4 l9 D0 B1 w( q7 J requestVariant[0].vt = VT_BSTR; $ I# h; U, s z0 @% B* D3 k requestVariant[0].bstrVal = itemStr;' Y" y1 H' O* L' s: x
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topicStr = SysAllocString((WCHAR *) L"system");# `- `+ [8 j5 C* b
VariantInit(&requestVariant[1]); ; ^, D% X( N' q8 u9 T y
requestVariant[1].vt = VT_BSTR; 9 u3 N* n4 S. D# Z0 C requestVariant[1].bstrVal = topicStr;3 ]; g) w* y1 h+ r3 X* w
4 V2 }( @1 D+ x( k
// Set the DISPPARAMS structure that holds the variant.0 }3 X* q$ R6 H8 R0 [
+ p' a5 m* a, Y3 u: V7 f& y5 g: e) Z/ h dp2.rgvarg = requestVariant; , k7 C4 i1 ~3 ]( v dp2.cArgs = 2; & |* t7 L5 x. P; r8 k dp2.rgdispidNamedArgs = NULL; - {; z5 g0 d+ z7 c dp2.cNamedArgs = 0; " e, x% J: p7 g& p# v4 |5 R E/ `4 \4 P6 k5 {
var.vt = VT_EMPTY;" o" j& t: K9 q: \/ u
4 |( {: A* L. A) t// Call IDispatch::Invoke()" k2 f% }3 C) C* f8 D# Y
8 T4 g+ t6 W2 F hr = m_pDisp->Invoke( ( c9 n+ r) Q6 j* [) C2 e: t9 W requestID, 7 M7 N. O2 d5 R' T) l IID_NULL, $ K2 T' ~3 x2 C8 Y3 Z LOCALE_SYSTEM_DEFAULT,& e- m a% ?# O) J
DISPATCH_METHOD, 7 K; w& @2 D9 m2 W4 Q# ^+ M &dp2,0 ~) _! [% n) J6 a2 k& c
&var, $ n8 }; e( g- F. r3 j &ei,; l- Q. ^. g6 a$ q$ p- I( H/ o# Z
&uiErr);, e& e: w/ f- E! H3 K7 i, h
9 \% c8 \, r& U( K
SysFreeString(topicStr);8 Z3 A. e4 |# u X9 V) t9 R0 ]$ }$ i
SysFreeString(itemStr);3 v) W9 G' Q( G$ P
请问该程序是获得extend里面的哪个值?/ @9 t6 v3 p: d u, A6 Q. A$ }
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????