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:4 G7 v/ j5 F/ w" E- N# L* N0 l
Name = (WCHAR *) L"Poke";5 h( Z2 [& M4 x) z' T' F" {* @
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hr = m_pDisp->GetIDsOfNames (8 d0 h" s+ [7 Z% |. d% R' M
IID_NULL, // reserved( i# _( w2 u l C/ N& w
&Name, // Array of names to get IDs for. @8 J( N; {8 g& |9 e
1, // # of names in the array8 K! G/ d" @9 Q8 X2 e
LOCALE_SYSTEM_DEFAULT, // System locale0 B( v) E3 _. `& S& K4 d
&pokeID); // Array of IDs to fill on output 6 j+ A3 \" L/ h9 @5 Z. E! l 6 }7 `8 A7 @, f3 p
if (hr) 9 [/ g9 {; z# D5 z& T7 j { 3 i& |% v% t( F$ t' W. C MessageBox ("Get Poke Unsuccessful");2 a$ {, F( |. X# b! w, `" W7 P
return; 9 |7 h. n( t( g$ f1 _' s9 b } ( a( B. k' J- D1 h 8 n" d2 T* n8 F/ ^+ l9 T# T/**************************传递数据给extend**************************************/8 T9 N5 I4 M% j+ r \: w- o# ?
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 8 ~: w5 O5 L, U% q1 D , Y6 [8 W5 @0 x) e- Z3 x3 M valueStr = SysAllocString((WCHAR *) L"1232");6 h+ T% P @* k1 ?' B4 l, ^
VariantInit(&pokeVariant[0]); 4 c9 _+ x4 u- h: l& C
pokeVariant[0].vt = VT_BSTR;/ j0 e0 \1 n" s2 {
pokeVariant[0].bstrVal = valueStr; / i6 n+ a) x; \1 F6 y8 ~( o; t% e) B3 U
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - [( j; p+ d/ X& [/ q6 _ VariantInit(&pokeVariant[1]); 6 f. L4 Q$ \! q; S pokeVariant[1].vt = VT_BSTR; - X9 S1 X3 U+ ^5 D6 k, q pokeVariant[1].bstrVal = itemStr;0 c$ l5 p# @3 V9 z, b, l/ x
! P, t1 d/ y5 z+ b topicStr = SysAllocString((WCHAR *) L"system"); 0 G M8 ]' K3 e7 p( |( W, _5 I VariantInit(&pokeVariant[2]); - w1 g, V: O9 Q( E4 U8 t
pokeVariant[2].vt = VT_BSTR; : K- z0 [% `7 R+ r& m pokeVariant[2].bstrVal = topicStr; Q4 y. u7 _7 k/ n' u* }0 s, J' O3 c- O, C
/ r$ o4 L5 }' A// Set the DISPPARAMS structure that holds the variant. 5 `2 }& V# M7 o# D, G6 k 8 I x. n/ R2 B) t F dp.rgvarg = pokeVariant; 7 v* G) B6 P) h2 q' K7 e; p4 u dp.cArgs = 3; + N/ S9 \: ?5 S5 M( _0 P9 I dp.rgdispidNamedArgs = NULL;% [6 K1 m. c$ e1 o# B/ |* W
dp.cNamedArgs = 0;& J* N! ]* y2 t6 F, a
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// Call IDispatch::Invoke() ! X. _" ~; o7 | ) v$ n4 P1 }) C1 h% j8 x hr = m_pDisp->Invoke(; X! H/ q1 `4 z9 m" K U
pokeID,6 c4 T- b1 t7 f9 c; Q/ ^; W5 Z
IID_NULL,1 Z' `' f& |, Y5 ?: v8 y9 T
LOCALE_SYSTEM_DEFAULT,$ Y5 l: r- r9 ]
DISPATCH_METHOD, 9 v8 g. O2 v' n T9 y &dp,/ t5 g6 c' f. w0 E+ j4 q# k0 d
NULL,9 j+ O' q8 D' f0 W& y
&ei, 1 H" R) c( {2 d# k" X6 l &uiErr); # |& Z a+ e4 X5 P) T N# p$ ]4 ]$ I9 w8 T" I
SysFreeString(topicStr); / j7 S$ U( o* T! r SysFreeString(itemStr);! z, Q: r7 N2 U+ |2 S/ t
SysFreeString(valueStr); 2 `, e7 P" u2 N+ L j0 Z E; c, o. j3 S% \# U% 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???4 r G' |3 C' @5 V9 A
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????2 H T& E% i1 ~ _) W% O$ C
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2.这是request的程序 5 L* y) r- F5 j2 h( n, U// Request a value from Extend8 H0 @3 s8 k6 ?/ x2 a
// ; J* l ~/ ~1 h8 [) A A' Q// Initialize the variant that will hold the BSTR. Set the variant's ! v1 A( j3 |3 h5 T// type flag to indicate the fact that this variant holds a BSTR. Place the $ n, Q% ~8 n+ c2 {# s) F. t// BSTR into the variant structure. . `3 w8 t: f! W- e: n, u. G 6 t9 l. X9 S- A$ l requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 g3 H6 O# |$ b# m0 j4 ^; f0 g3 Q6 c 6 m6 L& I1 X+ S, h @2 Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- |( F# W. u/ }( @( |" c5 [$ I' ]" @
VariantInit(&requestVariant[0]); & C" [+ o: [3 l5 g+ s requestVariant[0].vt = VT_BSTR;* e! N8 o4 C* T3 `
requestVariant[0].bstrVal = itemStr; 0 E; w( k* _9 M0 j/ Y ! R, v. s/ J" R( p7 _5 z topicStr = SysAllocString((WCHAR *) L"system"); - F+ H5 E' J, W: C8 w- g VariantInit(&requestVariant[1]); 6 `1 o5 Z" @$ w* X( L1 ?' B
requestVariant[1].vt = VT_BSTR; 4 V% {' m. E& B" r' M5 ~+ R, Z, U! n requestVariant[1].bstrVal = topicStr;( E2 [% H) e- E# z. l
( Y# [3 b; d. ^$ Z" L ^// Set the DISPPARAMS structure that holds the variant.6 ^5 ?/ V7 H4 O0 {. K2 m
% `- I- d, T' p6 `" Y E, B" K dp2.rgvarg = requestVariant;0 l$ U2 H! m6 v, M! [. P: r
dp2.cArgs = 2;, i# @; N0 b: i1 n
dp2.rgdispidNamedArgs = NULL; 4 G! t$ P% z) s% o dp2.cNamedArgs = 0;4 l1 e% F8 k4 t- F# w
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var.vt = VT_EMPTY;7 y H( q- k9 R2 `$ ~) t
$ e6 j. l/ I( f! }4 Z// Call IDispatch::Invoke() 0 ]7 y2 O. B6 o9 w) z) Y {! H! |9 `) Y4 w# Z- O9 o$ M4 d
hr = m_pDisp->Invoke(: V x: m4 ]1 U9 h) n
requestID, + X% p: J1 F7 u* U! a: U IID_NULL, # t H% R0 W ^" s O' n. ] LOCALE_SYSTEM_DEFAULT,. x' p, ~, B7 x2 h
DISPATCH_METHOD,+ y% P F$ ]" H+ A- {9 G7 j
&dp2, 2 p* _# k- I# [ &var,- o# N6 a" g1 Z4 b" ]
&ei, : u- K2 \/ i* J' M2 K; n2 O4 T &uiErr);* m) r, W8 O& | J+ @
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SysFreeString(topicStr);- Q& `& h, d. C+ {) ~; k% l
SysFreeString(itemStr);) n- c. v7 N6 s- U( w. E* V& f
请问该程序是获得extend里面的哪个值? ! N- L& J _0 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????