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:- x k+ H R& Q
Name = (WCHAR *) L"Poke"; 6 S. t% z$ r3 J1 ^, c$ K5 ] Y R; Q {5 F# c$ ]; J
hr = m_pDisp->GetIDsOfNames (- f! C' [ E1 _7 N" p# W, G) D
IID_NULL, // reserved% X* M- o, u R! w( a) M
&Name, // Array of names to get IDs for $ d5 {- x1 F9 _( Y 1, // # of names in the array& b1 S7 n3 z$ h* i! c; ^1 \8 k
LOCALE_SYSTEM_DEFAULT, // System locale : p; D* O" _; k8 a) C &pokeID); // Array of IDs to fill on output0 `! X$ ?% a6 |# V9 v; V( x8 ?
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if (hr) 7 n* s& K: G. t; `$ c0 t { . ^( x% X0 | q2 Z) O- C$ v7 d' S MessageBox ("Get Poke Unsuccessful");. a# L: `+ l& r! C7 }& T S
return;! |. M, l7 v4 f3 r" K1 H- \& ~
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/**************************传递数据给extend**************************************/ 2 {2 Z- a( A( J& A+ b pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 s0 h3 ~: v0 Z- f9 h
. H7 Z1 A6 x6 L: S valueStr = SysAllocString((WCHAR *) L"1232");$ {& `+ ?$ f& t( l7 I1 m- ^' o% D
VariantInit(&pokeVariant[0]); . Y$ l9 Q& n$ y4 [; k* x pokeVariant[0].vt = VT_BSTR; # k) k* H, G9 O. s% X pokeVariant[0].bstrVal = valueStr;4 r0 m* D0 M9 F6 }8 G. ~3 S- T
0 |: Q* H3 J& W3 P+ f+ p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 X. f# U: C8 M7 j9 y
VariantInit(&pokeVariant[1]); 9 \. \3 n6 C0 { G. a: E
pokeVariant[1].vt = VT_BSTR;' _9 T7 M& J" Z0 u' P2 e6 K
pokeVariant[1].bstrVal = itemStr; . Z: G- I/ e2 Z7 { y+ F" K- i5 J4 w3 A' u
topicStr = SysAllocString((WCHAR *) L"system");( L8 V; @$ ^5 F1 j% h7 c V4 y
VariantInit(&pokeVariant[2]); 9 P' Y1 P! |, ]+ h. a. T# [5 u
pokeVariant[2].vt = VT_BSTR;' J9 d( A& P- R9 N+ s
pokeVariant[2].bstrVal = topicStr;) k' R1 m/ Q! ]; \+ z
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// Set the DISPPARAMS structure that holds the variant. % P$ r7 M' G5 Z. k! o: {. q# D5 `8 J+ U& V/ D3 r8 Q
dp.rgvarg = pokeVariant; " V1 S% I. b4 j& S8 F W dp.cArgs = 3;. U0 d6 C7 Y, y" [' }+ g* Y
dp.rgdispidNamedArgs = NULL; & o; b0 P* K* U2 [2 J dp.cNamedArgs = 0; ! T$ E% ?" Q6 }/ O8 R! y. l8 I2 T" d U- H4 {9 c* q
// Call IDispatch::Invoke() V( U9 G3 ^( y( P4 U2 C/ W" w/ p+ Y' @* M0 W2 w1 _
hr = m_pDisp->Invoke( 1 R y, q% T# R- B( A9 e& v pokeID, # U* N# b# s6 u9 F0 A- E* c+ \. X IID_NULL,7 S4 Q6 M5 v# ?0 i% A
LOCALE_SYSTEM_DEFAULT, 2 D& z6 l& S( m' _$ O W0 @ DISPATCH_METHOD,: w6 K2 W! x% C: J- w
&dp, - r/ k+ Z! [4 H1 r2 m: ? [ NULL,5 r/ Y+ T7 s* l/ A* j9 u/ l
&ei,& R4 O" m$ ?1 O. q# ?, o3 U7 y
&uiErr); , S' q: W# b( j. a z9 J2 r/ x& [- V5 B- ^/ A0 W0 B1 H# K' m, }! y
SysFreeString(topicStr);7 o$ X) h! n; {& m& b0 \4 Q
SysFreeString(itemStr); / h& h/ D" q* Y" y" Z1 W0 d SysFreeString(valueStr); % u( ?( s, b5 \5 u6 k 6 w8 ~+ f* d, A$ u% {: M, 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???6 t6 M1 |6 J; w9 N6 J8 }
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????/ W7 l5 f0 b/ x! S0 a5 ~0 U
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% M5 P2 _* G& }* @3 |1 m0 R! _2.这是request的程序 & M8 u% J% q5 z9 J/ Y. s; [" B// Request a value from Extend. w" t7 l' }+ G
// 4 w+ G" @+ u$ u3 j; l// Initialize the variant that will hold the BSTR. Set the variant's 7 u0 z& V" u. P6 E& m6 @" d// type flag to indicate the fact that this variant holds a BSTR. Place the , |6 C; ]0 _4 s// BSTR into the variant structure." I! q- @* E M5 Y
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % T7 C) |5 X) F1 j$ P+ w 7 d" }7 J. s1 w- B/ e
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( x( l* @: b& |, |2 ^/ j& Y VariantInit(&requestVariant[0]); , Q' @, o: \3 O* [( M requestVariant[0].vt = VT_BSTR;; A$ E; \7 [ ~8 T+ g
requestVariant[0].bstrVal = itemStr;( U, N- A. ~: Q& J2 c- ~/ k. G2 D
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topicStr = SysAllocString((WCHAR *) L"system"); ' R. |. U" Q9 j9 o$ o: B) O' N, ^ VariantInit(&requestVariant[1]); + _) e7 K( F7 F% S( [
requestVariant[1].vt = VT_BSTR; 8 i* m2 U2 N$ v6 u% R requestVariant[1].bstrVal = topicStr; " W4 q6 s" v; l% ?$ F& j0 r$ ~) f. O! E
// Set the DISPPARAMS structure that holds the variant. 3 Q, M" G% W; A; x1 H, A & V0 v" K2 X, d! e/ S0 g) v) o' k dp2.rgvarg = requestVariant; 8 n+ b8 r- T1 E1 j7 I dp2.cArgs = 2;) { R5 s4 R/ P& N& o; b. @. a4 K' N
dp2.rgdispidNamedArgs = NULL;* A! y# n/ X5 Z
dp2.cNamedArgs = 0;; W9 h# d: c3 f8 I
4 x! G* v/ L9 @ u0 i5 I$ K' o var.vt = VT_EMPTY;! r4 t% M- g: E/ b1 {
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// Call IDispatch::Invoke()/ D+ v X7 D7 g5 Q/ p) X
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hr = m_pDisp->Invoke( 6 \ b* Y0 \- F6 k# r requestID, . W$ Q2 C+ G @7 X V IID_NULL,3 c% }8 \9 D1 W1 D
LOCALE_SYSTEM_DEFAULT,. c# V1 Y3 w! F. o1 X* G! s" s
DISPATCH_METHOD,; _1 X8 o6 K5 V# F$ {
&dp2, K2 R% p0 g9 i1 l; |6 T* F% w &var, n9 S# A# `9 [9 C3 t &ei,( w0 _; ^7 c6 `& F6 u* d
&uiErr); . U7 v5 O& D, y; X; f# K& W) p6 B* q) c* z7 s- ^/ W
SysFreeString(topicStr);! K5 e! K7 I8 d7 L4 M+ f7 i
SysFreeString(itemStr);' B$ y- y. @$ [8 e! [! w: X0 o
请问该程序是获得extend里面的哪个值?, t; x3 Z# w3 _
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????