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:3 R% r6 e, ~$ f) c1 I( P3 k2 C4 U2 i
Name = (WCHAR *) L"Poke"; . @; r4 V% W1 u7 G# H ( o1 a! [. [: N7 D hr = m_pDisp->GetIDsOfNames (! p2 a; s: i6 n& i) T
IID_NULL, // reserved' d. Z3 ~2 _$ I7 F4 Q4 G
&Name, // Array of names to get IDs for - ]6 f* X. A: S 1, // # of names in the array& ^: x7 I; y7 t4 m4 K
LOCALE_SYSTEM_DEFAULT, // System locale u5 B/ X: G( E( w &pokeID); // Array of IDs to fill on output( p$ Z6 H/ w7 R( {: p. p
4 v4 N7 R) x7 `( M4 Z if (hr) 7 ?6 d* m) v, n2 M# L$ h { - {, |: E* A3 F MessageBox ("Get Poke Unsuccessful"); & M: Y% j0 ^) U$ u" Q- [, @. | return; $ n! S1 ^ b: A- L# c8 n- _ } , S" i2 v1 M* Z( B5 `1 b3 h2 x5 p2 d
/**************************传递数据给extend**************************************/2 F# `; u5 u X% L
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 g. n$ C, f$ ~: g, T6 ` ! l) |8 z! ~7 N- ]' l. V- [ valueStr = SysAllocString((WCHAR *) L"1232"); 9 R5 o/ H1 v- J* B3 L% M VariantInit(&pokeVariant[0]); 9 Q7 H0 q( r$ q* h4 M+ ^8 O
pokeVariant[0].vt = VT_BSTR;$ [8 J$ R# e; _/ h" E/ h7 f
pokeVariant[0].bstrVal = valueStr; ) J9 W8 }! V& \" w" O 4 y$ E( U* O5 w- ?1 e4 `* F8 E6 F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 U: i) ]: O+ |/ x. f
VariantInit(&pokeVariant[1]); , l1 c% e' P/ u& j pokeVariant[1].vt = VT_BSTR;- q- }/ u, Z+ a$ p% P
pokeVariant[1].bstrVal = itemStr;( V( F9 i& R! s6 o" ?4 V
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topicStr = SysAllocString((WCHAR *) L"system"); : i, \' Z2 T, Y) e# O. ?% H/ ` VariantInit(&pokeVariant[2]); ' @% B8 k. A" [4 O* ]. k% I
pokeVariant[2].vt = VT_BSTR;# u" A+ [3 T" k; j6 d
pokeVariant[2].bstrVal = topicStr;+ o* I( [8 E0 P7 T: c3 |
; B# k6 {) E4 w' v+ {// Set the DISPPARAMS structure that holds the variant. 7 D( m/ r+ u+ }7 z& F; p6 C. f" N 5 |0 w4 a2 _0 T9 j) h dp.rgvarg = pokeVariant;# @. U1 |1 F" T( R0 w0 M
dp.cArgs = 3;9 g! @1 j7 Q1 k _: K" @
dp.rgdispidNamedArgs = NULL; & X; _' C! K1 `8 t! r" S dp.cNamedArgs = 0; ) H. K( b( w# k3 G 7 w7 G5 H5 [3 m' v8 }// Call IDispatch::Invoke() ) y3 {' c! L2 x" A7 V; J A6 [5 _; }1 \; B! Q ?
hr = m_pDisp->Invoke(! i' l0 G$ x4 \0 y" T
pokeID, 1 H4 _0 W2 a/ G% R- Q IID_NULL, ( N+ X& Z5 v7 i8 Q LOCALE_SYSTEM_DEFAULT, & D3 x( y# e/ s* z0 Q DISPATCH_METHOD,) D k* v3 U, v& _ G* g
&dp,8 z6 q2 W& u3 @& S
NULL,, E- X5 v2 J. ~) X3 M. L6 y
&ei,& M# T; E8 `% N* W+ Z2 y
&uiErr); . {8 ]- `! o% l+ x& q9 C1 o; s5 @4 T ^! T, h9 p5 h
SysFreeString(topicStr); & y; c) P3 j; X$ l7 x0 `' i SysFreeString(itemStr); - A% q) u6 h! J' x7 O, x2 k) } SysFreeString(valueStr); 8 Z7 M* ]3 v8 L2 e, r* z; R& f* e I$ o0 h* t
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??? . G0 \$ k! I8 d$ ^$ f c5 M; T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???? : {" }: { f+ k' J5 [: K; }: x 9 k6 u) n$ y1 |* w Q7 }6 [6 V. f. q% w& F6 `) h
2.这是request的程序 ; {+ J" M! ~: ]) M5 _// Request a value from Extend) \$ I/ V1 N3 y! c3 p0 o, l
// 9 E4 S9 b) |* k7 [0 I// Initialize the variant that will hold the BSTR. Set the variant's , n7 G5 _" T% f* m% _ j// type flag to indicate the fact that this variant holds a BSTR. Place the1 ]3 D" `3 G8 z3 z
// BSTR into the variant structure. 0 e- z2 N, C$ [* X" E 8 ]" s0 y2 w8 {4 e requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ( ], @1 J2 [* m) ?2 X 4 h9 G) x4 r2 q& ]6 G
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) S, ~& u6 P9 D( ?: a* b. I VariantInit(&requestVariant[0]); " u# B0 T0 e* Z# f; [9 J A9 h requestVariant[0].vt = VT_BSTR; ' s7 j) F3 q$ |# v5 W9 o: e requestVariant[0].bstrVal = itemStr; * g4 S0 d+ X0 I# F7 d; @2 I3 [/ |
topicStr = SysAllocString((WCHAR *) L"system"); 2 R1 m; M/ ^9 G& {" Z2 [& W VariantInit(&requestVariant[1]); 4 N7 F) S; V' Z9 |: X. y5 @- h; C$ O requestVariant[1].vt = VT_BSTR; ( N7 x, C: @* B" |% \4 c, F: x requestVariant[1].bstrVal = topicStr; * a" w9 K& z) n0 \$ W2 }- F6 D3 W* W4 H5 q/ Y/ W
// Set the DISPPARAMS structure that holds the variant./ c0 A2 ^, E( c3 g% c& v6 v$ T
$ K# C9 V. h4 \/ c/ | dp2.rgvarg = requestVariant;" |! C" [6 W9 C, p
dp2.cArgs = 2;& D/ t* p( X/ G, N' c6 L" f
dp2.rgdispidNamedArgs = NULL; 0 D* U, W1 [5 f2 `) D, p dp2.cNamedArgs = 0;* _# P, B, F8 I# B( b9 f# K; W, }; ^: H
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var.vt = VT_EMPTY;: T9 e# i& ~$ ]
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// Call IDispatch::Invoke() ' q$ P" N8 J* D, |) x4 C0 x . H8 n I+ m" `8 j r+ L hr = m_pDisp->Invoke(3 r, `9 o% x; O* d9 m
requestID,0 l) b! x) a z" K9 [5 }7 g
IID_NULL,5 J+ B( y% q S. k
LOCALE_SYSTEM_DEFAULT, + m: Z& H: p, M3 I. Z5 s/ c5 m DISPATCH_METHOD, 0 N+ j$ J6 @( i5 R( z$ M/ V( s &dp2, ' t2 o- K2 T+ c5 k; m &var, & S& O& J, E P- n0 r. T% I &ei, & E/ y3 d! b+ r9 u4 E &uiErr); ; u5 @" W& r! R4 R: Y# [; P+ _) S) _0 ^! Y. b' I& C+ w! f0 c
SysFreeString(topicStr); " h4 V2 {4 ]; o6 Y2 ]. P, f SysFreeString(itemStr); 0 d6 R6 `4 N! p" Y( m请问该程序是获得extend里面的哪个值? 2 V0 t: s# [% {# F8 U& n* I/ a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????