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:5 `' }4 R/ K( _4 X
Name = (WCHAR *) L"Poke";4 O5 e- a4 U3 R0 B4 d- g) M3 U: J
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hr = m_pDisp->GetIDsOfNames (( Z* N% c8 Z* C4 G
IID_NULL, // reserved. w! {4 @$ O& V7 L, ?3 o$ |9 e; m, |
&Name, // Array of names to get IDs for/ J7 M! h y9 V ?
1, // # of names in the array 5 V7 l- {. k2 U" ^& a! q LOCALE_SYSTEM_DEFAULT, // System locale' t7 E- \" w1 b) f' r1 l
&pokeID); // Array of IDs to fill on output5 N* V# m+ \4 a
0 } A( S: A" N& T Y if (hr) ) S% k0 z# W, ~- j {' ]1 d+ }& M# d0 L9 x1 ~$ W
MessageBox ("Get Poke Unsuccessful"); ( S! i7 D$ D, ~; C6 N7 b4 D return; - C- P/ v# X s5 O8 Q } # X. F5 X: b, y* w- v( d3 l ! s0 d- x. ]3 @7 K) J% ^/**************************传递数据给extend**************************************/) I" E2 r6 O3 Y1 R P {
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ~1 g5 E$ j( S" I
' d9 r( U- w- M; W0 I8 d itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ p4 u+ N7 J5 F$ `, g/ ]4 X% S
VariantInit(&pokeVariant[1]); / g4 e( e0 t v: y pokeVariant[1].vt = VT_BSTR;. b/ O* c$ m; s* H4 [
pokeVariant[1].bstrVal = itemStr; N: R0 ~+ G7 t1 F$ C7 z [7 l! e) E2 b0 c# O6 a" f; q3 W
topicStr = SysAllocString((WCHAR *) L"system");; v& z" m2 K% @, x
VariantInit(&pokeVariant[2]); 0 i, J2 r& @* x
pokeVariant[2].vt = VT_BSTR;6 n1 f( W6 l6 o* L' @3 y
pokeVariant[2].bstrVal = topicStr; 6 H1 }7 b' l7 J + S" J: Z! M+ ~. P7 A// Set the DISPPARAMS structure that holds the variant. - ]/ e8 u6 H! i6 D6 k( J: W- W+ d: i' R
dp.rgvarg = pokeVariant; ; J0 _, ^( _6 u# t dp.cArgs = 3;' N4 Y, t" I, Q6 K2 K9 T
dp.rgdispidNamedArgs = NULL; * P; k# E0 K; y6 {; A6 v dp.cNamedArgs = 0; - q* @2 t+ ~) B0 _' a5 Q. n/ {8 Q) k0 {2 ]
// Call IDispatch::Invoke() $ O8 P) j7 e; L6 M* G3 U# W" g % F( z; ~0 u, M7 w3 l* s hr = m_pDisp->Invoke(5 F7 _# i6 [( l y7 ?
pokeID,- y8 B& c3 l* p( h+ Q9 g
IID_NULL, 6 ^1 x- S) e+ G7 O* c# w LOCALE_SYSTEM_DEFAULT, 7 Q+ f2 [8 C5 q0 N3 t( X7 b. p DISPATCH_METHOD,# `4 W$ C$ y, b* f4 f
&dp,+ X3 T5 T; u0 {! \9 ? y2 Z4 Y
NULL, 2 t7 O* `1 ~. p B5 O &ei, ' M( ?# f: N- x8 Z+ D &uiErr);) B: m& H$ u% J" |5 E1 E; s" y4 W
, c+ O2 e5 D/ E: Z0 k SysFreeString(topicStr); 0 k+ \$ Z0 c# j( F+ m# ~ SysFreeString(itemStr); 0 Q2 z7 a& d3 \) w- x. o SysFreeString(valueStr); : N$ I& n6 k" F S+ B6 _3 E) w3 x6 m* ?1 a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???8 i, f! `- d6 i- c
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????' O2 X6 s$ K& D: W/ O) x
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9 u3 I C( ?( K. V2.这是request的程序 $ Y3 i" x0 p7 M2 [// Request a value from Extend - X, f* W- `$ u0 E# j. ~// + u3 m9 P# {+ u& ^% N// Initialize the variant that will hold the BSTR. Set the variant's 4 t0 {# a# x+ ?# ?) _% J1 s// type flag to indicate the fact that this variant holds a BSTR. Place the1 S. P* k; x7 i3 D# d* I% s
// BSTR into the variant structure.* b9 v/ r; k- V) p; i