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 C2 }# o9 g7 y" R" t% ~* ?
Name = (WCHAR *) L"Poke"; - \% e6 Y9 I8 A. f : S- c7 F% E5 b: z hr = m_pDisp->GetIDsOfNames (5 ~7 S2 T2 e6 u
IID_NULL, // reserved ' Z" Y; e' `2 ]4 x &Name, // Array of names to get IDs for 2 e/ A$ ]5 f0 n 1, // # of names in the array $ y! L; u3 _+ ^& c! o LOCALE_SYSTEM_DEFAULT, // System locale / _; a) s& | C, \ n P) f &pokeID); // Array of IDs to fill on output5 t4 @ w) p+ g7 M
. [. K, m. Q( ^ if (hr)' F4 N3 W/ U2 L6 u7 f
{ % F2 V% t' h- Z) L. u MessageBox ("Get Poke Unsuccessful"); ' a! G a2 o: \2 W3 ` return; " x4 H2 {- [( _- w* |3 W } 5 B6 ~: k) f0 K, V6 l! \! E - t4 g; a* B; Y* U8 g/**************************传递数据给extend**************************************/% S0 O4 h- _: P, d
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 K& O: c3 E( X F4 j( T* i) [) E ' z$ G+ j6 g) ?( g, k valueStr = SysAllocString((WCHAR *) L"1232"); & m) m( Z' O- }# ~ VariantInit(&pokeVariant[0]); 4 n' h; B# ]: l* V pokeVariant[0].vt = VT_BSTR; |% N5 y4 t6 X' h, l pokeVariant[0].bstrVal = valueStr; ! M; X# |" V3 f7 W, Z- T8 v7 x, q4 z5 R/ v8 s
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ z- M% F& ?5 B X
VariantInit(&pokeVariant[1]); ' _: }4 P5 M6 h8 p* Y7 F0 d8 b pokeVariant[1].vt = VT_BSTR;) V3 q7 D0 D, W7 c' r# m- k
pokeVariant[1].bstrVal = itemStr; 2 A! M. Q N) R' k: C) ^* n+ Q$ U
topicStr = SysAllocString((WCHAR *) L"system");! Z5 }1 f% |4 W! Y
VariantInit(&pokeVariant[2]); ( C4 o8 Y8 s, [) |( Y' { pokeVariant[2].vt = VT_BSTR;" t" |3 e) g0 \: @9 x
pokeVariant[2].bstrVal = topicStr; " J$ } r! Z" ^7 ?/ ^# m, s0 G( p" {
// Set the DISPPARAMS structure that holds the variant.( z( ~! D; S+ f+ w
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dp.rgvarg = pokeVariant;3 c7 ]# q6 |# O+ q; I3 _
dp.cArgs = 3;: _- V3 `$ n& {% f/ O4 W
dp.rgdispidNamedArgs = NULL;5 ~9 ]6 L. ` p: ~; s" n! ^1 I1 F9 N
dp.cNamedArgs = 0; 8 \" L, [2 ?+ J 5 B2 m& D- c6 C$ f' o. J/ `/ r% B( D; I# h! {// Call IDispatch::Invoke() # {- M3 c& |# X6 M( H# ?* w# L# t& p" @9 A
hr = m_pDisp->Invoke(5 P4 d) O4 b G4 n
pokeID,* I, R6 @. @$ k8 B
IID_NULL,1 y9 c/ i; b! p9 p' F+ C
LOCALE_SYSTEM_DEFAULT, # z9 | c, `5 G# C+ k" b DISPATCH_METHOD, 4 d- j6 E+ ?! b+ b1 q &dp, + h9 C- y( G+ [. i NULL, - {( Y) b3 _, o7 G# l3 g &ei, " p9 |2 P" Y7 b# D% A# ?# q &uiErr); ; C* [. b" w- m ! c) C2 l( a" g; J SysFreeString(topicStr);: v5 W, P! r! g' ~
SysFreeString(itemStr);/ k ~7 C: \* i1 j- n
SysFreeString(valueStr); - R0 F( z7 O7 K- H3 V7 t |" W5 y6 ~4 J! ?3 X' L) I# t# m
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??? $ m6 z/ B4 l, \" s; ^8 k, F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????+ E; r* r6 n" K
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$ B2 G9 L L- C. m% K5 d$ J2.这是request的程序 * y1 e" [& T, B5 h+ x) ^ a+ v" T// Request a value from Extend f7 P) R: G8 u3 R& J: J/ c# C
//9 ?: I! H+ E/ p4 _
// Initialize the variant that will hold the BSTR. Set the variant's 3 X$ U. ? g' [: K; ~4 B2 d9 S4 `// type flag to indicate the fact that this variant holds a BSTR. Place the% g2 e! m2 I! f) \) s' p3 j
// BSTR into the variant structure. ; n" ]; s7 ?+ G ( n1 ~7 C8 s/ L- W: V/ R requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); # P; ]( _6 d2 A8 S. C! ^$ Y ( w- G8 J% n! y/ y% K. M
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 f2 \7 p0 L' F6 q2 |1 y VariantInit(&requestVariant[0]); 3 H; ^6 Y$ j; C
requestVariant[0].vt = VT_BSTR;0 S, ]" K% N: w p' J- ~/ ?6 H
requestVariant[0].bstrVal = itemStr; 6 M! N3 F/ Y, U1 C8 G; p ( w& \: `. S, E" {; ]0 U8 b topicStr = SysAllocString((WCHAR *) L"system"); # ~9 U! o2 Q" v VariantInit(&requestVariant[1]); 8 ?' L- ` V0 r requestVariant[1].vt = VT_BSTR;( j3 n3 y- U7 _4 Z
requestVariant[1].bstrVal = topicStr;3 f* V: T# L+ k/ {' }2 _+ i
% r, J4 a3 z3 G: V3 e// Set the DISPPARAMS structure that holds the variant. / m4 f2 `. w/ `( l% p2 m 0 ~' m- q+ _. G8 L2 R dp2.rgvarg = requestVariant;. g7 R! w& y1 i6 e1 | w3 x
dp2.cArgs = 2;( d& d1 k( |* G, N! V
dp2.rgdispidNamedArgs = NULL; 9 o. Q) g. T4 ~7 A) I0 j dp2.cNamedArgs = 0; ' u3 B3 e1 v3 m0 j$ a5 E/ ?6 a( k, @
var.vt = VT_EMPTY;, S7 m F$ a o+ Y8 x, L( I4 ]
% J# e- M& u7 c! z4 c2 f- e// Call IDispatch::Invoke() / p- G# t/ |4 S& @* }" A) H9 N2 J, @( |* `
hr = m_pDisp->Invoke(# K" }& ?; T: b* }7 C
requestID,; K( _* Y3 X- k5 O: t& T! f0 G
IID_NULL, 6 c, u. |( V' ]" X* u LOCALE_SYSTEM_DEFAULT,8 J" v! M. W& }
DISPATCH_METHOD, ; A* @7 @* O7 l: P &dp2, 6 a, E' ^1 m+ o1 A" Q" T4 L0 @: H &var,# L( K8 L( i7 d8 \
&ei, 8 L' h9 G. u) q; J. j# Y &uiErr);' i1 G8 s( H' L; \" H5 v
' z. { v' O. H" U* z5 t" r7 ^' `
SysFreeString(topicStr); . z4 r" p! R' o1 c SysFreeString(itemStr);' n. [2 @ P# \
请问该程序是获得extend里面的哪个值? ! i. |, \& a. g0 V& Y! f* J6 b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????