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: 6 M; V% Q3 t: W) F) l5 oName = (WCHAR *) L"Poke";8 r# }& x6 U0 j* a; c: A$ c5 K4 \
9 {. a0 r% F( _- g$ \
hr = m_pDisp->GetIDsOfNames (9 w9 v; X. _6 p
IID_NULL, // reserved: U0 x' @3 k. o8 Q$ Z
&Name, // Array of names to get IDs for$ ]5 j: A* w1 q4 V3 v* Z
1, // # of names in the array 1 [; A+ E& ~: e/ ~/ y LOCALE_SYSTEM_DEFAULT, // System locale , l. Y! g, i. R7 G! s8 X0 x &pokeID); // Array of IDs to fill on output0 c1 z+ Q# ~5 n& C) ~8 r
6 i" j5 L. [9 J6 ]) D if (hr) . ~5 c2 H9 M1 J& E {/ a/ d. w# h5 U7 ^% S
MessageBox ("Get Poke Unsuccessful"); 8 C( c' p( q8 N- C& e+ E return; / |% N: S. ~/ Q# @. r9 q } / X* B9 }8 S3 k4 @$ w$ l ) |. @2 j, q* [/ N/**************************传递数据给extend**************************************/5 y3 l- G7 _( S6 z. W
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; Z+ N) E& w7 V) W
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valueStr = SysAllocString((WCHAR *) L"1232"); V% s" A" H6 c5 i9 k9 G! s" b4 a VariantInit(&pokeVariant[0]); ' c. a1 r, z J
pokeVariant[0].vt = VT_BSTR; ! d6 X7 |1 o8 L$ J9 w pokeVariant[0].bstrVal = valueStr;! `$ H4 A: W4 ^8 k G
3 l6 }( U: }: m# k L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; ]4 A4 }3 z% S; b5 w' p
VariantInit(&pokeVariant[1]); ) g# ]0 @! C% i pokeVariant[1].vt = VT_BSTR; : I, {5 |- I# i3 A* t pokeVariant[1].bstrVal = itemStr;; n/ X/ o. k! ^1 U% n
: k" q: O' T1 ]$ [ topicStr = SysAllocString((WCHAR *) L"system"); " {8 ^% ~/ ]% g: Z! ^. _ VariantInit(&pokeVariant[2]); 5 V7 V8 t; S) p# f# J3 K
pokeVariant[2].vt = VT_BSTR;* v# \1 A/ M: G( f9 t8 T
pokeVariant[2].bstrVal = topicStr; 1 T! c, ]5 j0 a: ]) f ) q$ m8 I- v5 W7 p; n* K7 S" h// Set the DISPPARAMS structure that holds the variant.6 n' p3 K9 |( D D1 i7 H
& w+ a4 ^& { U$ m/ y dp.rgvarg = pokeVariant; . P& w/ m' p) {4 X dp.cArgs = 3;: E( T5 A4 V1 D' u z+ t! v9 `
dp.rgdispidNamedArgs = NULL; , ~+ g9 Z8 U2 G; L dp.cNamedArgs = 0; " w! [ h E) J; ^6 q1 W5 [, a% p. j) O, s' J. x
// Call IDispatch::Invoke()3 o5 p6 d0 | c3 \/ r
' \2 n' w* V1 X hr = m_pDisp->Invoke( - G$ I% k7 s8 k! L pokeID,5 K" v- u J/ E l& w4 ]% _: Z
IID_NULL,7 V; t6 ?/ @# B; h
LOCALE_SYSTEM_DEFAULT,. N0 _- Q) L( T" d8 `4 U8 E
DISPATCH_METHOD, % [% Z9 Q" @# G0 K, n0 h &dp,4 W/ S. x2 C/ C+ y/ U- B! N
NULL, - i- F- S, ~% o( ?9 T &ei, 2 N; q. |( F+ U* H" J1 ^7 w' p &uiErr); " @+ W2 ^* n- h: J: z6 F+ W % q, o9 k& ?- p# _9 y SysFreeString(topicStr);1 g' _* R# |* s2 Z3 S% _: }
SysFreeString(itemStr); ' _1 h* H+ p$ i SysFreeString(valueStr); 0 K7 {; ^ Q9 u- k + n1 s7 T( ~& H! ^% j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??? # F, g& C3 p9 ~% N d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????4 E% N& O* F2 x, z
( x# [, G4 C7 K" U & |; p5 X: b& |* ?& _. M2.这是request的程序 8 u: W" o, n: b7 g( j0 X// Request a value from Extend1 U4 L/ P+ L% Z2 m
//# k: O, V" J$ U, i) H
// Initialize the variant that will hold the BSTR. Set the variant's, Q; s$ L/ A1 B8 [
// type flag to indicate the fact that this variant holds a BSTR. Place the 3 Y3 _4 d' ]4 w4 k; P// BSTR into the variant structure.; @4 {2 y. e3 n; |, N
. A+ K6 y, Z+ C$ j/ `! D: { requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 w! c8 k2 h3 {( v, k
, U: L! r) G9 W' |. j5 [- }
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 W; K, e: F% @7 p- |, T3 U2 Y% l
VariantInit(&requestVariant[0]); # [ m% ?# q8 A$ C0 b requestVariant[0].vt = VT_BSTR; 9 G4 q ^- I, _" z$ M! K requestVariant[0].bstrVal = itemStr; 4 T% {& ]. ? t7 a2 o8 h0 F7 x8 ~7 D3 x; q' H$ y9 @: \
topicStr = SysAllocString((WCHAR *) L"system");% x" l8 V. P5 h, V' @+ \
VariantInit(&requestVariant[1]); ! x) ? G& ^0 r0 E7 P# x
requestVariant[1].vt = VT_BSTR; ) v2 o# S g ^ s requestVariant[1].bstrVal = topicStr;) ~, ?- Z% U) R
+ ^) W6 ], s/ ^- p+ ]// Set the DISPPARAMS structure that holds the variant. 7 `/ N% `& f* B6 N! c: G* T9 ~' u6 M9 z' ]
dp2.rgvarg = requestVariant; . ^3 y* B' f5 |$ p/ F3 h9 e9 W# H; T dp2.cArgs = 2;% w% j2 W1 o: z* F
dp2.rgdispidNamedArgs = NULL;2 m2 s4 l0 e5 X7 m. R n3 ?
dp2.cNamedArgs = 0;* Z0 P3 B1 {% `0 t& ]
4 G9 A! L0 f% i3 Z F* x
var.vt = VT_EMPTY; ' y/ k# k9 o, M3 D3 O3 q4 ~1 A+ ^6 Y" n
// Call IDispatch::Invoke()7 E, A, z5 c4 m6 G( |- v) i: j* G
0 m' Q3 i9 x/ D* I: L hr = m_pDisp->Invoke(3 M/ Q2 @) v: D9 @# W$ J/ |
requestID,+ [1 G& L5 h- W% y. }+ f
IID_NULL, % R' L8 K3 G& H$ F) l; n3 s& J+ Y LOCALE_SYSTEM_DEFAULT,) R. N/ l, A; Z- C& f9 o
DISPATCH_METHOD,& n$ p3 H' y6 ?& ^ a
&dp2,, I! `, G0 q+ o! j4 P
&var,, S6 G* k* I% K" ^6 _2 x: L% O5 R
&ei,6 a. I3 e6 n& ]
&uiErr);9 s& g- h. h1 {1 w