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:9 X6 ~7 H! W7 k4 \- c$ L4 \8 [
Name = (WCHAR *) L"Poke";6 J: b, j" x& D Z% M
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hr = m_pDisp->GetIDsOfNames ( % V, D: q# W$ v* Q' w; A# q# M' Q IID_NULL, // reserved: p& }% K' t3 [/ J7 v7 J
&Name, // Array of names to get IDs for- @$ v h$ V% f. k ^. E
1, // # of names in the array. o- Z* k7 [- @0 V' I
LOCALE_SYSTEM_DEFAULT, // System locale * o z- d9 H7 i& G9 c &pokeID); // Array of IDs to fill on output 5 M s* d" {" e3 W 0 K) D9 B2 C! k9 L& S+ P if (hr)% i; s1 ]3 d/ C! W r. ~4 g) V5 \+ O1 i
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MessageBox ("Get Poke Unsuccessful"); % U6 T% Z) o5 e; b# H return; 4 h. ^7 [8 M# l( p6 k! L1 e } ( ^3 h+ ]4 T# S8 m- b% g, ~/ r' m0 K/ e# N% M
/**************************传递数据给extend**************************************/3 J; |+ c; ^' A7 g8 S' d
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); q/ j: \) g; T; C# J1 p
, i/ F, P f2 L! ? valueStr = SysAllocString((WCHAR *) L"1232");3 B. Z; c# ^; N2 [2 y; t$ \7 B
VariantInit(&pokeVariant[0]); 9 q% z# k( B% x1 s! |# y0 p4 e$ N
pokeVariant[0].vt = VT_BSTR;) f/ w- |# p# O% t4 ]
pokeVariant[0].bstrVal = valueStr; / U0 y" Y: b# F( D* _9 K! b* \8 K7 P: o) M- }# j
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# A) K, H% v/ |" Z
VariantInit(&pokeVariant[1]); $ U4 T. V! r, \- F$ q+ R pokeVariant[1].vt = VT_BSTR;7 Y& p. n) w8 K( G
pokeVariant[1].bstrVal = itemStr;9 o! g+ i: Z, [1 z0 K; M
: _! ]; g: A% r# n/ v& T R topicStr = SysAllocString((WCHAR *) L"system"); - a1 p) E0 T$ e9 \; v a1 b VariantInit(&pokeVariant[2]); , G& ?7 f+ T. R6 v- e
pokeVariant[2].vt = VT_BSTR;9 {) g6 t! [* Y+ ], A, ~ e: J) U
pokeVariant[2].bstrVal = topicStr;) ]/ D' b3 V1 ~
5 X4 v) Q; ^' L* k! N2 J// Set the DISPPARAMS structure that holds the variant. " P5 y1 B. `- d . G. V( m g4 _8 N5 W+ B& V dp.rgvarg = pokeVariant; 4 y9 ~ B$ \. f# N dp.cArgs = 3; n6 e5 y8 @. i4 [" S3 o! l5 \6 Y
dp.rgdispidNamedArgs = NULL;" q. h8 e4 g$ r: G
dp.cNamedArgs = 0;6 K. X( ?" ?6 }0 M9 n4 |8 K3 `
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// Call IDispatch::Invoke(): E' J7 q' v6 ?8 [; n! @5 p8 V
$ x* k# L( C2 A( ]; R( }. S hr = m_pDisp->Invoke( ; S6 _, Q( e3 O' h6 U pokeID,' e1 n5 ?- \+ c7 O O: A- `" w
IID_NULL,& [$ i: O. B8 G3 a0 J" d8 ^6 K, {- z
LOCALE_SYSTEM_DEFAULT,% a; U1 E" ~- K' _% ]% L! l9 B
DISPATCH_METHOD,; z2 _* ~' g1 F+ i* E
&dp,1 b; z$ }+ \$ l# s4 M4 l( c
NULL, 5 f# a! B- Y% C" } &ei, - m# l6 I- h$ d* }$ c$ H &uiErr); ; t& U2 M, S- {' d+ v# \ ) D) W( A9 ?; B3 N SysFreeString(topicStr);! ]+ t) A" W3 O. v, v1 u _
SysFreeString(itemStr); e$ m$ k: U$ `- e. C. H+ Z. e# g N SysFreeString(valueStr);& R4 }' w! k7 H7 B: P& P) x
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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* _0 S) O+ Y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???? ' F4 I# m3 g. ?$ l2 w2 Y' N2 X8 t" ^3 v' M
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2.这是request的程序 . H2 `9 E# O. R2 e: }, H// Request a value from Extend + o+ |) [2 K- s0 V4 j, M// Z: D# F. c$ } s0 f9 n. m
// Initialize the variant that will hold the BSTR. Set the variant's: y" p3 _! E, i% w& o( C4 O
// type flag to indicate the fact that this variant holds a BSTR. Place the# {5 z: @+ I. I6 k/ e0 d0 E
// BSTR into the variant structure.+ B% I# E6 m! F* E; P0 [# g& P
" ^: ?7 R4 a& D requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); : ^9 p) {! g( ^. |" p# J+ s. E/ M 2 y: O+ K: I7 `7 O8 ?% u2 i' `: P
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 ?, Y1 r( M; J8 G( ^ VariantInit(&requestVariant[0]); : C1 h t/ b! \) E- u
requestVariant[0].vt = VT_BSTR;5 E% h. x- }$ p1 U9 b r0 k
requestVariant[0].bstrVal = itemStr; ) s- w9 ~ @% Z # e! q( ?4 [7 W1 p0 ~ topicStr = SysAllocString((WCHAR *) L"system");- b5 X; I6 ?5 ]; S9 q+ @
VariantInit(&requestVariant[1]); 0 H7 k# e+ c5 F) d+ g
requestVariant[1].vt = VT_BSTR; 1 q/ F9 N! _! h* s requestVariant[1].bstrVal = topicStr;5 {8 p" U) | J) Q2 k/ y& H+ d" p
- \+ ~/ @8 _/ _$ k// Set the DISPPARAMS structure that holds the variant./ B- I. v, B& z( g# K
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dp2.rgvarg = requestVariant; , M6 \1 b$ ~) ]" C dp2.cArgs = 2; 3 x$ n+ {4 ]+ I6 b) u/ ~4 b dp2.rgdispidNamedArgs = NULL; " Y5 C# f* @) D/ a0 Y" h5 I) P dp2.cNamedArgs = 0;! c. h5 W, d1 V. q
. u, @6 M. x) D5 l0 a var.vt = VT_EMPTY; ' x) s$ ?0 }; I; m ! x/ E0 F3 q3 _; s4 C2 R9 l @2 z// Call IDispatch::Invoke() 4 ] n& W V: |& A- p7 k7 M ! _- f: c+ ^, `( P- { hr = m_pDisp->Invoke(( c3 D, m, a$ _! \% W2 F0 l
requestID,- i6 \; C( O) y; f, W5 G& C
IID_NULL,7 I2 d% G& I( k
LOCALE_SYSTEM_DEFAULT, ) ?+ J) `0 l! H, F3 S DISPATCH_METHOD,2 e- b& S! K) i* B' j% k4 }+ U
&dp2,6 _( n4 r" q; b6 M8 ] a
&var,* _( O. m0 }9 s, b) N- ]) P
&ei,& r- y& K. T! j: |: @
&uiErr); : N: k0 X* N( H/ G' v3 f0 Z, a$ m$ y! ^
SysFreeString(topicStr); * Q+ E, ?6 |: z% T% E SysFreeString(itemStr);% N" W& l6 I* k/ b0 S! y
请问该程序是获得extend里面的哪个值? 8 Z& S! I. f% d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????