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: . y: W9 B- k) K/ A1 E" U5 ^Name = (WCHAR *) L"Poke";) R* D, S: b$ O; ?
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hr = m_pDisp->GetIDsOfNames ( ; V+ l+ @* ~& c% |+ I& ~ IID_NULL, // reserved& g8 I* q5 F, v, u, q3 Q
&Name, // Array of names to get IDs for# h4 s0 N- }$ p8 }, M# Z
1, // # of names in the array ( a, ]- ~5 M' U3 y8 B3 F+ F LOCALE_SYSTEM_DEFAULT, // System locale 5 o! K" l3 }4 T' | &pokeID); // Array of IDs to fill on output ' D6 y* o7 f5 H4 m g' V * J! E/ N9 P" _! s2 ^5 D$ w if (hr)' c. i3 b2 _4 @' _) F
{ . A. |8 F$ a+ I: L+ q Y: A MessageBox ("Get Poke Unsuccessful"); , n) s( w% i, o$ {! c return;( s( a/ q0 W* d0 i3 I: j# E$ Z% z5 x
} 5 z, g8 w8 L. @/ j, W # K; _2 z6 C$ |( H9 Z/**************************传递数据给extend**************************************/; a2 f( a8 J! Y/ L1 M$ w
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ; `! J+ m+ c9 G5 f + l+ V6 q; v: ~5 L4 K) A
valueStr = SysAllocString((WCHAR *) L"1232"); 6 m( D# c7 R6 P4 [2 X VariantInit(&pokeVariant[0]); + |* t& H4 w' G. v pokeVariant[0].vt = VT_BSTR; ) [" s8 S3 _. `$ x9 J3 b) u pokeVariant[0].bstrVal = valueStr;6 L' }# |% V+ b! k1 i& s
6 Q3 J1 J6 {3 N' E+ w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); H, p- m; P$ W% B8 U1 v
VariantInit(&pokeVariant[1]); $ J1 j( x6 Z7 _% I- e: q pokeVariant[1].vt = VT_BSTR;( e5 W7 F# K! O0 ^
pokeVariant[1].bstrVal = itemStr; 6 i" D+ s1 I! J 7 J; O# q0 ^: L* Q7 L' S topicStr = SysAllocString((WCHAR *) L"system");8 m( K9 w( F& G6 e2 M; b
VariantInit(&pokeVariant[2]); ) d2 [( g9 B; C; G+ A* J6 e! s/ Z
pokeVariant[2].vt = VT_BSTR; " k8 z z5 Q* c+ \5 H% W! Q pokeVariant[2].bstrVal = topicStr; # z% R# |- ]! A. x+ k% c& i, @/ {) w; z4 H7 w) P
// Set the DISPPARAMS structure that holds the variant. 4 U& r3 v4 L! s2 t/ r; m: x$ V2 J4 e0 F2 |. a# r7 h. h+ H
dp.rgvarg = pokeVariant; 3 O5 y- e3 X# O* R dp.cArgs = 3;. X: E* N) \; x+ g- y
dp.rgdispidNamedArgs = NULL; ( O1 I! O; K/ C0 ?+ F/ A. [ dp.cNamedArgs = 0; 0 z. l( x! Z) r, ]0 y0 n) p! _ b4 J5 ^# `, l4 Z
// Call IDispatch::Invoke() + t1 S4 w! {& n$ t( D. k- {* v 2 D" K( W: l5 c5 x; m hr = m_pDisp->Invoke(, z% o. `7 o( G
pokeID, 8 ~ ?6 A8 ]3 z9 B# M9 I( }7 n IID_NULL,% G& C# U1 i9 [& p
LOCALE_SYSTEM_DEFAULT, 6 G$ l( ~, g4 n. q9 F9 { DISPATCH_METHOD, 0 m" F) j/ B+ x& L4 N- u# Z &dp,0 z6 U7 o! M# g. X" z8 ~
NULL,% u- g' u$ R5 Y5 j
&ei, - y1 Y7 d+ B C# o* ?' |* q! \ &uiErr);0 v) u4 K1 ?; a4 Q. ~7 h5 m7 U
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SysFreeString(topicStr);$ H: l6 t$ m# [1 B$ |8 W
SysFreeString(itemStr); , A f B4 d- k$ T. h* B2 { SysFreeString(valueStr);3 @ |5 U! |/ Q- d% e
2 Z8 d5 o$ o) `* n# 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???; H+ c: Y1 e6 @9 p) H) G- }' Y$ p
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???? 3 [# ~4 b! q; e8 ^, [0 v i! B* w! J& Y" ]
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2.这是request的程序 8 g: t5 i* q- b- x& \9 ~! ]// Request a value from Extend+ K& U1 o: t5 O, q( [- X6 o
//: p( E9 O) t1 M6 f- Q
// Initialize the variant that will hold the BSTR. Set the variant's) F8 g- m% v3 I" s! L/ L! Y
// type flag to indicate the fact that this variant holds a BSTR. Place the % H, q1 Y8 e0 a' u// BSTR into the variant structure.4 D$ j- \- T1 E7 F; d. B: N
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ w3 h# Z. }* ]2 ^' M* `6 M% x
6 h1 `+ ~: B# b7 @ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( G/ B2 A5 B0 e3 W* z VariantInit(&requestVariant[0]); 4 w' V3 e5 k0 h I requestVariant[0].vt = VT_BSTR; 6 I: M$ A: i6 Y" s6 V8 y" X requestVariant[0].bstrVal = itemStr; " K% v' I& }- [* R7 h. f @ 6 M3 m. W8 d7 C3 S topicStr = SysAllocString((WCHAR *) L"system");9 i4 V# `0 T* E+ o) G4 i
VariantInit(&requestVariant[1]); 8 k7 L* P1 C0 t
requestVariant[1].vt = VT_BSTR; ) K( a3 H2 ?4 c2 E' ^ requestVariant[1].bstrVal = topicStr; 1 S+ f; {- s% n- ~0 Z! n7 S* }7 s* l: [: x! I* T$ r
// Set the DISPPARAMS structure that holds the variant.0 W: n0 b0 A+ U8 V. H) e1 J
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dp2.rgvarg = requestVariant;! d% f2 E. d0 M0 r N$ O9 t
dp2.cArgs = 2; 7 E& u, c; q8 m* v) S0 x; ]3 V+ j dp2.rgdispidNamedArgs = NULL; 6 v' o; A+ j( }2 A% ^7 r: J dp2.cNamedArgs = 0; 1 W, A6 q! @0 B9 D$ p9 x W7 w" |' `
var.vt = VT_EMPTY; ; t7 T% L8 G* F/ |) H2 U! H4 r$ w* P. t
// Call IDispatch::Invoke()+ i$ S* ]; G- V% E% M
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hr = m_pDisp->Invoke(4 N9 v1 ~/ ?7 {+ T5 Q( K& z6 N" G
requestID, M9 ]! ~& y8 b& c5 Z' c7 W' D
IID_NULL," r8 u( S/ V0 A* l
LOCALE_SYSTEM_DEFAULT, 7 a u6 N/ Q* E& l DISPATCH_METHOD,3 G" S9 d$ f1 j# t' _
&dp2, 7 R7 w" |* y z& A &var, $ v) E& Y( \0 r* z8 v &ei,, t0 W3 \# I+ H
&uiErr);% c: r, G/ ^* h2 w7 K1 f3 k+ |' d
1 x" F; s0 N; C& C SysFreeString(topicStr); 7 d8 |& c9 H+ r0 ]4 x' J0 F1 w SysFreeString(itemStr); $ W( ^- V& w9 {. m) W w+ F请问该程序是获得extend里面的哪个值?7 c8 G) [2 K, J. T( _
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????