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 Q) Z+ k7 C7 V& X2 i* z6 C, [Name = (WCHAR *) L"Poke"; ) u0 y2 S+ t9 Z! I 2 U: O" k; \9 ^: N, ^1 d
hr = m_pDisp->GetIDsOfNames (. B. w' Z7 ?% J
IID_NULL, // reserved 0 O+ d J( L7 L" I4 p9 B) G0 r Q &Name, // Array of names to get IDs for 6 T1 n& q' e" q# j0 V5 ~ 1, // # of names in the array: j1 U+ o/ c/ j1 Z5 }: @. q
LOCALE_SYSTEM_DEFAULT, // System locale' |6 i& J. G7 P& p# g9 B; B- [, D
&pokeID); // Array of IDs to fill on output 9 D( R, S. S4 W! [ & g& x( V. w8 n* g; Z if (hr)6 u2 A5 b8 s! Q3 f) @; n
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MessageBox ("Get Poke Unsuccessful"); - Z) l9 y/ X i% d: o return; 7 T6 E: O7 v7 H) K' f }' z* A+ y V& I4 P+ Y
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/**************************传递数据给extend**************************************/+ [3 [) N5 H, j3 M, _9 y; p/ A- R
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 1 T7 S8 S _- F8 A; ~ ' W, H* f9 P! m
valueStr = SysAllocString((WCHAR *) L"1232"); 6 u: b* Q: t* m; N6 ]3 ? VariantInit(&pokeVariant[0]); # L+ ^7 b7 B a4 g `. ? pokeVariant[0].vt = VT_BSTR; 7 F( D5 w* X' s* S- u; k& D. \2 G4 Z pokeVariant[0].bstrVal = valueStr;; h$ j6 X# W- |+ b) G
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; K; O- l% B, G r1 d: c
VariantInit(&pokeVariant[1]); ! h4 r. s6 R# [6 F' Y: I1 E. m pokeVariant[1].vt = VT_BSTR; : U0 I$ }9 W5 o+ ~ pokeVariant[1].bstrVal = itemStr; 6 F0 W! R2 B% d, o3 F( _. X2 Z 9 B% E& Z& c6 ~3 d# }9 \ topicStr = SysAllocString((WCHAR *) L"system"); " w2 ^7 s( r/ L. T% k1 D/ O& Y VariantInit(&pokeVariant[2]); 7 t3 Z; a8 ?$ ?) v
pokeVariant[2].vt = VT_BSTR;2 P2 D0 `8 e" C5 Q
pokeVariant[2].bstrVal = topicStr;- t- j. ^0 D/ d* T& l. W4 _. i
. y- ^4 r/ v, u% v- t- q// Set the DISPPARAMS structure that holds the variant. $ \( x. L5 R/ W - y& Q9 ~+ }: Z5 Z6 t5 N* ]- W7 D1 B dp.rgvarg = pokeVariant; ' P9 G; N' C1 s$ T2 e: V9 w dp.cArgs = 3;3 W8 B* B- h, ~& g/ ]4 \
dp.rgdispidNamedArgs = NULL;% a& }& c7 V" l$ C" a
dp.cNamedArgs = 0; ) d- H- `: X I( V0 K6 G0 G" E; P! c; a4 }4 _
// Call IDispatch::Invoke() $ }7 f# U( _/ E8 { , o3 t- A$ t# V3 i$ ?3 f hr = m_pDisp->Invoke( & u+ _9 \1 S* }6 m3 s; T- F! D pokeID, + K% I, p. H3 V0 b1 Q) l2 c IID_NULL," E* d4 \+ r$ I, X) k" R' @
LOCALE_SYSTEM_DEFAULT,' O% z4 m* m7 [4 x* g5 W
DISPATCH_METHOD, $ d* V$ d6 q# f8 s, W &dp,3 a) n/ t( F, o% Y& u
NULL, ) U$ e" n' o' R2 |5 g+ B &ei, D1 I! f# P1 A3 a &uiErr);) X9 h" c. M/ i7 _7 {! T
! [, R6 _9 f, t! ]# C SysFreeString(topicStr); ; y6 r3 l0 z3 a6 C+ } SysFreeString(itemStr);& u3 @1 k6 D( P7 R3 @
SysFreeString(valueStr);; i- S2 h+ }8 W# W& \9 F" w' x) o
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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???/ ^# M' s$ Y5 v) c8 ~$ f) P( B
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???? & n+ r4 _( A" F1 j* Z) Z 6 u6 ~2 ?6 l5 A) o) K: a5 ` ; L* k* @2 K0 W5 p# i2.这是request的程序( _1 [- H/ s' v; K" p* n( p
// Request a value from Extend / v1 N6 t( x0 X4 o! q$ p//( H, K' U& j3 J! H Z) Y# A; g- n, r
// Initialize the variant that will hold the BSTR. Set the variant's - T( I+ A/ h+ r// type flag to indicate the fact that this variant holds a BSTR. Place the: O$ n O! q) N+ {% Y1 E
// BSTR into the variant structure.9 L( u$ R8 j7 I