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 \% F0 M( y$ K7 Q% p
Name = (WCHAR *) L"Poke"; . t/ {* ^9 s* B' _. l! q2 d: c; c# K : T& `9 N: h6 b! T6 A) j1 H
hr = m_pDisp->GetIDsOfNames ( . o! ]5 ^! f( F( m6 S1 C8 p: f& D+ V9 ]) ? IID_NULL, // reserved : d# G6 J/ u: w0 C( ]5 i3 O &Name, // Array of names to get IDs for4 Z& a. o s& j# b0 `* _
1, // # of names in the array) e' N, t ^+ ]2 N8 W4 H
LOCALE_SYSTEM_DEFAULT, // System locale3 W+ r/ E/ g D( j i* [7 q' b; P
&pokeID); // Array of IDs to fill on output: @* Y8 Q. Z9 S$ B( @& [
# u/ a+ [& |. H: q, T3 Y3 Q
if (hr) 5 w' l/ `' |) x {3 ]7 l) {" D v6 X& \
MessageBox ("Get Poke Unsuccessful");. H6 d5 o: }7 O/ R
return; $ \& w+ W: M" y7 @6 A6 a% P }8 o; z' q$ H4 }5 Q \
- f) L! Q, i L4 O+ U
/**************************传递数据给extend**************************************/+ h! V; j: c4 O N+ D) p$ e
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); * Q9 r, q3 L+ J$ u6 V) s+ Q, i- \ E7 f! [. o; S6 ^( I' z
valueStr = SysAllocString((WCHAR *) L"1232"); ' _5 M- ]5 @' k- f: ` VariantInit(&pokeVariant[0]); 1 V0 f7 l+ ?/ l' s1 T pokeVariant[0].vt = VT_BSTR;+ X# i F) M: \) c a6 t, b
pokeVariant[0].bstrVal = valueStr;* w9 z, G7 w! _$ j) x
- ]% ^* x' i* M; D+ i itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 l9 R" x" w! K8 }
VariantInit(&pokeVariant[1]); # t9 E5 F# P) M. t
pokeVariant[1].vt = VT_BSTR; - E* d; _ K7 J0 N pokeVariant[1].bstrVal = itemStr; 8 z3 @* ^. {5 B: j! { 1 R |9 p% ?+ i. h+ @# z topicStr = SysAllocString((WCHAR *) L"system");& D. [+ a. K2 M: H# |7 c
VariantInit(&pokeVariant[2]); ( g! T' z3 i& r a( j$ D
pokeVariant[2].vt = VT_BSTR; . @0 t; {' w4 h/ C pokeVariant[2].bstrVal = topicStr; ! m: P5 g3 {1 x0 u$ A' O ! q+ {0 X5 W: a5 Y& ~// Set the DISPPARAMS structure that holds the variant.% \( p! ~2 s# w3 n, ~
9 ?6 A: c( O; _, ]# d9 ?
dp.rgvarg = pokeVariant; $ S8 r: x1 h* @' U3 N+ y' h dp.cArgs = 3; 3 P1 j; d7 {2 {, M5 \6 \2 W dp.rgdispidNamedArgs = NULL;2 F: A( H; |- i5 H
dp.cNamedArgs = 0;7 { n: D% O" t8 S
! G: O- h; `* S" B. W; U/ }% ^
// Call IDispatch::Invoke()9 S8 k. A: }4 s o
' t5 a: f* F' V$ s( K9 Z
hr = m_pDisp->Invoke(- ~+ i- W/ d% s. i" K3 I C9 m
pokeID, & V6 m8 Z6 l- B' [# S2 y. N9 B7 D+ [ IID_NULL, `! p3 o8 v) C: H. o+ r4 d LOCALE_SYSTEM_DEFAULT, " i& u, Y3 a" f$ }- W+ Z( ]8 S DISPATCH_METHOD, 7 g# @; K5 [4 P3 C &dp,* j1 m* e; V" i. u
NULL,! n, v7 z" }+ m$ J/ n* p
&ei, # _# R) N* M8 p" I+ [& k &uiErr); h5 Q9 E) S1 _# ]' s4 z , T* z6 f* ^4 O7 ? SysFreeString(topicStr); , o' p+ M! [/ G) f SysFreeString(itemStr);5 u- U# M/ K* C7 P
SysFreeString(valueStr);, ~! T& N' d. F: v* N+ D/ V/ |
9 ~0 E0 r9 g4 Q( L' Q; A) Z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???5 U2 B1 k: _, C( g$ q8 K+ R
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????8 R0 ]6 Q; ?3 w0 [/ d) M) E2 D3 b- R6 a& ?
7 @# u+ m/ ^. ]/ P9 h5 n8 y! B5 L5 s9 |
5 j6 b5 \/ g" J, H2.这是request的程序 ; g! N+ c, H$ B, Z8 X8 Z// Request a value from Extend . Y$ W9 x" L& x/ M" O7 e// \/ }' I3 O/ b( n4 Q4 H( s4 V// Initialize the variant that will hold the BSTR. Set the variant's 4 e! [! y+ z( W* ^. K// type flag to indicate the fact that this variant holds a BSTR. Place the ) {+ D2 Q+ Z8 d% }3 }, O6 {# C// BSTR into the variant structure.* k3 y6 Y2 i4 O