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:; `; J0 ]" \& w {( W/ b. V
Name = (WCHAR *) L"Poke";1 p+ t& ]; Q; t* L# T
2 O; ~! Q7 {& t" E. K7 B2 C hr = m_pDisp->GetIDsOfNames ( " ]0 q. U, G7 E9 q IID_NULL, // reserved# W, N* k E9 i8 N, h
&Name, // Array of names to get IDs for1 r, k6 D% p& ]
1, // # of names in the array f' M8 q; V7 Y1 ^; j8 _
LOCALE_SYSTEM_DEFAULT, // System locale 0 c4 o: P9 ?2 w% d+ S &pokeID); // Array of IDs to fill on output 6 E8 r- y8 f2 S- c6 D9 U+ H) { + G. \6 g L! z: n9 x
if (hr)9 Y+ S' T; r3 H- X2 h5 ~6 \9 Q
{! g1 |6 F' X: T- K: m
MessageBox ("Get Poke Unsuccessful"); [. @$ a* s g return; ) g9 L- F4 X4 ~0 Z9 D }3 f& b& F' D9 |0 {0 x+ {6 r
/ \2 @1 C* g2 l/**************************传递数据给extend**************************************/; _6 S+ X: E7 ]. a/ t. {' }+ X
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 \# x3 Z- _- g& T/ ~/ S
, E. o4 r4 m& L2 f( b+ V
valueStr = SysAllocString((WCHAR *) L"1232"); 5 N/ t, A; v+ W k' _ VariantInit(&pokeVariant[0]); 4 @% {- i0 P) {/ I1 ~# N: E% T ]
pokeVariant[0].vt = VT_BSTR; 0 v+ _7 }! b) Z% f' _ pokeVariant[0].bstrVal = valueStr;7 Z8 _/ ^6 j' M9 B$ U$ D- Q
8 `" b6 s2 S {+ G& k" K8 ~0 \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 c! m- \* F% y- t4 l1 f8 u VariantInit(&pokeVariant[1]); " z7 b' c; f. _$ A; I; ]$ j pokeVariant[1].vt = VT_BSTR;( ?, r* ^2 {- _- d4 J% R5 e* M, J
pokeVariant[1].bstrVal = itemStr; : J7 K6 s# C: {8 I2 G; z, h: \2 Z# I6 k; M. U/ Q0 S
topicStr = SysAllocString((WCHAR *) L"system"); 1 N# z6 m c0 `: O; i; K VariantInit(&pokeVariant[2]); 2 E5 q' N( y9 x( u pokeVariant[2].vt = VT_BSTR;5 _( Y& g. s B l- j( t
pokeVariant[2].bstrVal = topicStr;7 Q' i( \# _+ F% ?
1 m& X5 |2 Z" d1 {, H( w// Set the DISPPARAMS structure that holds the variant. % |4 W& h' S# m8 L! R Z! P1 o" s- v' |" i6 B5 u
dp.rgvarg = pokeVariant;3 d' y! g7 T, P( i y
dp.cArgs = 3;. S* j6 D, G! E( K% M6 R$ W
dp.rgdispidNamedArgs = NULL;/ R1 L: N% b6 J
dp.cNamedArgs = 0; / v K$ E+ s! x( R5 Y 8 K/ C( w( M5 `+ T5 T// Call IDispatch::Invoke()0 d, ~. @' `; D4 G5 _6 P
1 S3 U& W. @* j
hr = m_pDisp->Invoke( ' F d! P* [, d* R pokeID,( k# D0 O) k" ]9 y
IID_NULL, b9 B" m8 W6 J2 [! `; c1 k LOCALE_SYSTEM_DEFAULT, 8 _. Y3 t& O! q1 F DISPATCH_METHOD, e$ r: b) F4 y V8 ` &dp, 2 z' `0 w+ v" J NULL, " ^& p+ v+ P/ [5 s s; o: l &ei,$ Q) I2 a" J* s1 \& c
&uiErr);1 p: Q) N7 I. v1 b3 D2 Z5 c) s( `
+ F$ d/ C& w) }; t" B$ R! g SysFreeString(topicStr); ) F6 a5 e n- @* w SysFreeString(itemStr);& ?' B! v) s h& m( t m* H( p
SysFreeString(valueStr); # C. |% [- l4 S. G! o" M8 ^8 l; t4 e; |9 I
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???+ ]6 a' [' u( u" 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????+ j- L' b8 C" T; H& g
7 p& L6 }2 ~) t& ]& }( b+ v7 N; `( i+ c* y1 J4 Z0 O( _% G
2.这是request的程序4 s3 W5 Y+ x! e0 h& ^' d6 }# M9 P
// Request a value from Extend, m5 V8 W1 x& s* z; y7 P( i
// : `" b/ _1 X8 x* c/ o// Initialize the variant that will hold the BSTR. Set the variant's " I% {) ]2 g2 x; y% z// type flag to indicate the fact that this variant holds a BSTR. Place the ! A& f4 z0 q# z- K: g// BSTR into the variant structure.' H8 W) D- Y6 W" M# ?