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: ! l% {4 m3 R* S w% r: JName = (WCHAR *) L"Poke";+ Z; w* T& v2 C2 I& K% v
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hr = m_pDisp->GetIDsOfNames ( 4 |# f! |) p. w8 e IID_NULL, // reserved 4 d% |) }( K( P( f/ L) c &Name, // Array of names to get IDs for! s! T1 i4 z: u9 l' d q% x
1, // # of names in the array * K: q& t. D+ o6 X& b7 m! U$ Q# O LOCALE_SYSTEM_DEFAULT, // System locale 7 }: D9 i% g+ x &pokeID); // Array of IDs to fill on output 6 X3 P; l. Q- ^+ D, l 5 ?6 \7 M( k6 m2 ?
if (hr)4 N! D/ R; J4 R( z# c- p H4 l
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MessageBox ("Get Poke Unsuccessful"); , [. ^( c: w) w return;7 b5 x+ x5 ?8 j. R3 v
} ( D. Y* Q+ j. b, M, A" p. @ 9 X6 j) v0 f5 q/**************************传递数据给extend**************************************/$ J E! z9 ]: i, Y6 C9 V7 d
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 6 r) O" I' D7 H0 E) c2 n/ A: T 1 D3 }$ @$ M& ] |" Z8 g8 @ valueStr = SysAllocString((WCHAR *) L"1232"); 1 n* p5 k3 W. M0 Y4 @ VariantInit(&pokeVariant[0]); ( I, [. `1 z) X& o# w pokeVariant[0].vt = VT_BSTR; j1 H2 R# i# h' N# `6 w pokeVariant[0].bstrVal = valueStr; % O n6 I/ {: [/ b! e" \ - G2 z- J2 x$ x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 e: Y) F8 f$ {3 T( r VariantInit(&pokeVariant[1]); ( h( J, q9 U; a, n( N pokeVariant[1].vt = VT_BSTR; 9 U4 f) H, R% z/ M6 Z pokeVariant[1].bstrVal = itemStr;" h, q* Y) [# Y$ V# z
5 s7 N+ L4 M) J/ b6 n& H topicStr = SysAllocString((WCHAR *) L"system"); ; _% w! X# y0 w6 ] VariantInit(&pokeVariant[2]); $ Q7 o+ [3 M" v Q" C# {% e, L pokeVariant[2].vt = VT_BSTR; ) F' }6 J7 |$ i pokeVariant[2].bstrVal = topicStr; 4 \7 e9 H8 c. {1 g; s+ o9 M! ?" G" e( C% C" B4 j' U4 Y$ {
// Set the DISPPARAMS structure that holds the variant.5 v& A' ~9 T8 X% Q0 K3 P
7 E& |% B9 J) Y% D5 e9 D3 { dp.rgvarg = pokeVariant;9 I; B' Z/ X7 d0 k4 |
dp.cArgs = 3; 1 f; N0 z9 r9 ?3 Q- }+ w1 k* \ dp.rgdispidNamedArgs = NULL; ; S' h5 g$ w& J; X( `& H4 R3 U dp.cNamedArgs = 0; % {- n' L; P4 D3 Z5 S/ n) K; j, y. Q0 X" I) Y7 x. @
// Call IDispatch::Invoke()$ e7 Q& n+ n: O% t* A
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hr = m_pDisp->Invoke($ ?4 @9 @" t* i" a" S/ ?- i
pokeID,* M% E8 D( _- A
IID_NULL,, C2 [/ j% p% d" B5 K# H
LOCALE_SYSTEM_DEFAULT, , m( \% V. m) h2 d& r$ ] DISPATCH_METHOD,! x/ R( v& q0 h8 J7 f$ k
&dp,4 N! q! t* Q) h' R* @# \5 Q- {
NULL, 7 Y. z2 b" v8 b* M' y/ Y &ei, 6 a7 b; q: E0 Q. f &uiErr);# K$ y) Y) e& N5 h
; \% |% }- P6 k v4 ?! ? SysFreeString(topicStr); ' Q) @3 t; y0 y. r2 d SysFreeString(itemStr);0 E7 L2 Q' e3 e' r. ]; ^
SysFreeString(valueStr);. {+ F3 I# B6 t5 A8 | p+ y
N& I' k, K' l# L' ]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???9 [/ d+ r' M$ d y9 i
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???? 8 m6 }" {+ y3 g. N. r ) H6 N7 v4 Q9 O/ t4 S. F4 Q 7 a" w }+ H, v& ^7 ~1 [, s2.这是request的程序$ C3 E/ x; z/ Y
// Request a value from Extend / l% W6 E: i5 H& n+ p& A6 H- v+ e//- r0 v. J' F5 i( C
// Initialize the variant that will hold the BSTR. Set the variant's+ }! h0 B5 K- s4 W7 l4 f
// type flag to indicate the fact that this variant holds a BSTR. Place the8 v' z2 l; v5 M! T, I3 w- u$ _+ y
// BSTR into the variant structure.8 N) Q, u1 I! v2 p
8 B1 Q) Z1 ^: e, C requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); , i3 j+ J8 o6 f6 { 9 L' l/ @+ [6 ?2 H5 H2 B. } itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 v S% ^+ q# P
VariantInit(&requestVariant[0]); 4 V" ~' O! B, E. O requestVariant[0].vt = VT_BSTR;0 e1 W9 N1 b. E+ O
requestVariant[0].bstrVal = itemStr; & x% P& {0 \3 Y0 P$ M& }" Y: X $ n3 J. c) l6 \- e d9 n topicStr = SysAllocString((WCHAR *) L"system"); $ t8 H+ X }+ p B0 e0 O i VariantInit(&requestVariant[1]); ! Z' O: _3 n! Y, u5 d
requestVariant[1].vt = VT_BSTR; ) C1 B( o* {6 e' Y requestVariant[1].bstrVal = topicStr;# m) M* v, {& d5 r% u
: o) i# M+ T: t$ ^. I: `, a// Set the DISPPARAMS structure that holds the variant. 2 m0 u' u& a2 ?) q, o) A( d1 j8 X3 o( v* E
dp2.rgvarg = requestVariant; 4 C! h, N s3 d$ _4 _ dp2.cArgs = 2;. g" D5 h( a9 y h9 g; Q
dp2.rgdispidNamedArgs = NULL; 2 [6 n" Z5 L6 b2 w* e8 K% V' \7 Y: r dp2.cNamedArgs = 0; " I% n" p8 v( P2 t }! c3 \- c- |9 U8 z. @ k( W" Q9 z0 X% s) D
var.vt = VT_EMPTY;* u) t! N6 n8 a# m; A- d
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// Call IDispatch::Invoke(). A1 m* z; u# m& V& T2 @2 x- j
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hr = m_pDisp->Invoke( ?! U! }; s |3 c. `9 y requestID, * Y q( u& i) z$ K6 k4 E# ` IID_NULL,4 @$ [: q% _2 Q
LOCALE_SYSTEM_DEFAULT,& J( B1 j) S5 b1 _% Q* |; I) s
DISPATCH_METHOD,' P9 {6 N( s* F* U8 i, w2 K
&dp2, 1 Z1 V# ]' f. G; z6 q &var,1 O& V1 j+ j5 V& k i
&ei, $ J k x$ w5 {/ { &uiErr); , T: r/ `% r. _) T2 y6 y, L7 q3 Q4 _( a
SysFreeString(topicStr); 1 m, ^- S* \& q SysFreeString(itemStr);/ L% C6 M# S2 d/ P
请问该程序是获得extend里面的哪个值?- I5 U0 q# V& A& G( C
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????