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: / ?0 x& Q" X4 q& P6 D8 wName = (WCHAR *) L"Poke"; 1 a. N( c' S9 O7 m* Y . _" z" I) K+ s4 d hr = m_pDisp->GetIDsOfNames (7 I, J' [3 v2 v! C( s+ r6 ~
IID_NULL, // reserved" D" d5 P. M, G! s' O
&Name, // Array of names to get IDs for 4 w: V# v+ N0 S. x 1, // # of names in the array# @) F$ l! V0 ^: ~, P9 L. c
LOCALE_SYSTEM_DEFAULT, // System locale 8 }0 G: w: e9 _. }$ u &pokeID); // Array of IDs to fill on output$ g( F0 k0 g6 b0 M( b" P1 a# e [
8 H# [! a4 G6 r y2 M {8 U9 {3 e if (hr)3 T. p$ m9 k. h- s4 V
{ $ c; R4 f7 [+ m MessageBox ("Get Poke Unsuccessful"); + i; t9 f* ?6 e ^8 K return; 0 J' [0 z0 U1 F) v }$ e' B3 j' y; U: d, h) J7 L
$ O$ J2 B& c. {; k- ]6 `" p/**************************传递数据给extend**************************************/ . J+ z" [7 s1 k P) U. q2 E pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / \2 B' H8 |) i5 E$ \- c2 A! u! z' M & e4 F, T; o0 W+ y valueStr = SysAllocString((WCHAR *) L"1232");5 X; \8 V" }3 w6 m9 S3 @
VariantInit(&pokeVariant[0]); # m% ~% g' I/ k$ u. A }( G pokeVariant[0].vt = VT_BSTR; 8 S* P+ r- S+ c4 C! b! i9 v5 C pokeVariant[0].bstrVal = valueStr; 0 V, G, ^: X# a' g. C$ l% A 6 N* B0 y" Z$ I itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 j7 e8 _8 c4 S
VariantInit(&pokeVariant[1]); 8 X t L q4 I- A* ~ pokeVariant[1].vt = VT_BSTR;. c4 k- R, v; o$ S) w9 y; z' w6 s
pokeVariant[1].bstrVal = itemStr; . X8 e/ x0 K* D1 E2 S! C7 m( J% v' |: p) K: [" V/ F/ _4 s! N5 Q n
topicStr = SysAllocString((WCHAR *) L"system"); + z4 i) P. {# ~0 f3 H VariantInit(&pokeVariant[2]); U: f/ s0 r2 f. h$ P pokeVariant[2].vt = VT_BSTR; ( a1 e, E4 m1 Z; { pokeVariant[2].bstrVal = topicStr;' P. m6 u+ T C* S
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// Set the DISPPARAMS structure that holds the variant.0 t; i' B+ J+ X
7 x# d# K8 v& w dp.rgvarg = pokeVariant; 8 G1 _. C( E6 U dp.cArgs = 3;8 s' U7 D* L; o7 _" @
dp.rgdispidNamedArgs = NULL;) Z& L k1 d: z& P6 t) l- ~7 H% N
dp.cNamedArgs = 0;; j$ g2 b+ p7 v$ I
# e% h: o4 r/ l( h// Call IDispatch::Invoke()1 n% b. A2 t( f5 f. S) h% z
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hr = m_pDisp->Invoke(* E/ Z* F. C( a
pokeID, . S" T& X0 X2 G* e7 E* n- ~; m IID_NULL, ) J& Z# r# e0 D. d* k LOCALE_SYSTEM_DEFAULT,$ M% e3 F* w# [, e, {/ v: U
DISPATCH_METHOD, ! c h- C7 v% N# M$ W &dp,- A' i* R' Y& E$ |
NULL, 6 u& k' C) e: ?$ z' v, g; P &ei, % z7 k4 x/ x2 t5 V, ~9 v& @ &uiErr);5 T# q* K- I2 s& \6 V% u1 F! k/ }
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SysFreeString(topicStr);5 {/ u% \* Q1 y0 n0 b' W7 L6 e
SysFreeString(itemStr); : T8 c, m+ @2 y' U5 i% B- @ SysFreeString(valueStr);7 `8 q) Z; I8 x/ E9 h8 M4 b
: u. A3 j2 |' Y, R2 C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???. T. M: k6 W9 v) [. \/ I# ~4 X
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????( W; Y: R: Y+ f
" r6 X2 f- Q6 a. ~6 m5 a6 l) P / B' }( u' ?- U: u- t1 g/ U2.这是request的程序5 Z' s: o$ Q; w M9 T+ V$ [' w! s
// Request a value from Extend / I% J& S9 m$ @ y+ H; Z//: q w( S" y6 h1 D
// Initialize the variant that will hold the BSTR. Set the variant's: @) J! F) j: f: K$ n K9 s
// type flag to indicate the fact that this variant holds a BSTR. Place the; F1 v) a# ~& N5 U
// BSTR into the variant structure. 6 T# l: a7 x$ e9 T7 f- { x& P d. p9 I: l" v1 c requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); : n" G( Y; w# G* D* u 1 _% i- b9 ?% H* r& F
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ J3 J" v" ]' l/ w& ^
VariantInit(&requestVariant[0]); . u0 c* @, p( W$ |$ C, _ requestVariant[0].vt = VT_BSTR; 1 w0 u8 B0 z3 P# N9 K requestVariant[0].bstrVal = itemStr;* J; { O. Z9 s: ?4 N
2 {. a1 d) Z" h4 N: c/ v+ k. N topicStr = SysAllocString((WCHAR *) L"system"); % |7 ?# k# B: s7 f! p6 o+ n4 i# G VariantInit(&requestVariant[1]); ) L7 Q: N. x2 L" U- m: C1 P a
requestVariant[1].vt = VT_BSTR; - V* ?# R7 p6 f$ e h9 U requestVariant[1].bstrVal = topicStr; 8 g: o/ b0 u8 E ) p( _1 U+ z3 t! _! _% ?/ F4 Y// Set the DISPPARAMS structure that holds the variant. 8 n" K" R6 C A, U, ^ . P+ I9 b. R7 j m/ N, y$ W dp2.rgvarg = requestVariant; 1 Y- t1 I# c' A$ i% k* W/ d- {8 @ dp2.cArgs = 2; , _' Q9 d# X1 K4 j dp2.rgdispidNamedArgs = NULL;/ Y2 r" a% U; D
dp2.cNamedArgs = 0;4 ?9 f# C$ E7 }9 y" E1 N. Y- |
% U8 e0 h4 D( j! V) v4 x9 p( o+ Q4 B var.vt = VT_EMPTY; * Q" ]" m. ? s4 i4 U) J# D / @5 V7 D0 |) y: g% N// Call IDispatch::Invoke() ; [4 X% o2 N0 u& W 0 x5 J2 q3 G, {- H: b) O" s" x hr = m_pDisp->Invoke( " y" A, D3 h( S Q7 R requestID, `# J1 ?& W$ K IID_NULL, 2 S1 k3 d c9 E7 l LOCALE_SYSTEM_DEFAULT, ' O* Q P+ M7 J* b8 ?4 Y5 g DISPATCH_METHOD,, Q; k" G. t: D- }- N8 ?! _
&dp2,% W; `! e4 x* Y( F- d( `
&var,3 Y. O0 I. j& V) m% t
&ei,; _% s1 T2 p p/ G( P5 C) V
&uiErr); / t, o# ]7 H( _8 L) Z" x/ v6 m 3 a' n+ ]) W, e. h6 Q$ G. {+ [. U SysFreeString(topicStr); + t6 [* T) a9 A. h, ~7 P) g6 Y SysFreeString(itemStr); 3 q% r `6 G# D# j' y a请问该程序是获得extend里面的哪个值?% A8 [) M& f& w$ J* q
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????