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: & n; x& y5 _/ d; s. L* EName = (WCHAR *) L"Poke"; $ b) S# ~4 Z# @( {, u* ?4 s + ~0 K* K0 V' G8 U hr = m_pDisp->GetIDsOfNames ( 6 a; z7 |3 k6 g IID_NULL, // reserved # D0 v! i4 |2 Z: E3 L &Name, // Array of names to get IDs for # O( C- E5 X( T6 Y- ~! m0 K1 o" @ 1, // # of names in the array # u/ u9 U+ x8 F, g LOCALE_SYSTEM_DEFAULT, // System locale- U4 s8 c; q, z: b- j$ s. x: v: b
&pokeID); // Array of IDs to fill on output$ I9 Z8 C( ^* Y2 z- O! t1 J
! R+ p0 F, ^4 l% Q3 k9 S0 W' n if (hr)+ D7 @% }0 ^( k/ r1 T
{ , @9 E% T' w3 g+ R8 U, D5 ~ MessageBox ("Get Poke Unsuccessful"); ' T& U+ E' X; }( e+ D return;/ C7 f" `( G! @
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) V M+ ^2 v# ^6 H7 l/**************************传递数据给extend**************************************/6 x( d5 t7 s5 [0 q* n0 h; q
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); + n1 K4 S1 u& R4 I4 P8 d* }3 ~ $ n, X: `" B4 @4 Y' b$ O) i valueStr = SysAllocString((WCHAR *) L"1232");1 H. w) T) S# c3 T
VariantInit(&pokeVariant[0]); + Q. Y, r) u8 H' | pokeVariant[0].vt = VT_BSTR; ! G1 z; N$ S4 g pokeVariant[0].bstrVal = valueStr;4 G" g7 ^; k( }' Y( c( c
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 ]; T: n1 d" C8 d
VariantInit(&pokeVariant[1]); 2 n& }, x! f8 {+ R& z pokeVariant[1].vt = VT_BSTR; 3 g5 y* d; }& y6 B) i pokeVariant[1].bstrVal = itemStr; 4 \/ `; v0 }6 C E* |9 @. V! v" L7 S
topicStr = SysAllocString((WCHAR *) L"system"); ; l; l9 e3 Y& @ m VariantInit(&pokeVariant[2]); & u( i, D1 Q5 M/ X0 b) i# c
pokeVariant[2].vt = VT_BSTR; N1 h* Q1 D* p9 w8 Y- Z6 z pokeVariant[2].bstrVal = topicStr; 5 F6 v7 X. w; z; V+ V( F: M, { 9 v( @5 t" u1 q3 R2 d5 l// Set the DISPPARAMS structure that holds the variant. ) p( Y# |$ T: J, ]( j; T" g0 e 0 Y) ?) T5 @. f7 l# j dp.rgvarg = pokeVariant; ' s' [* D, t- L dp.cArgs = 3;% Z5 P6 c" j7 V9 [% [ V8 L: S
dp.rgdispidNamedArgs = NULL; * n+ e4 _7 H% M$ ]8 L dp.cNamedArgs = 0; , x( j* {7 I n5 n; O6 O0 c; } 9 [/ o6 M% R( U' R// Call IDispatch::Invoke() ; l2 M6 A2 ^, N" e7 t% c . J4 q0 V* l0 M" c2 [$ [ hr = m_pDisp->Invoke( 7 j7 n5 g8 a& d9 Q: Y8 N pokeID, * c. u' ?8 \) d' V IID_NULL, 4 u6 U) A! W3 g. _* v# S' p# O LOCALE_SYSTEM_DEFAULT,7 n3 S' k' l) L7 ?: `
DISPATCH_METHOD,5 D) C' w# v" k1 U( ]
&dp, ' a) e: c/ }8 f7 f1 h NULL,1 o1 b4 R; C8 x$ X L' y
&ei,2 P: R1 i J5 ]5 l" v8 N' C& }
&uiErr); ( h& D- b" y7 q& P * o1 Z" A; d2 ~/ R5 y, L SysFreeString(topicStr);" J$ b5 X5 w; o1 }7 f, C
SysFreeString(itemStr);- b3 B! W& d4 N' c' b: S& x
SysFreeString(valueStr); p+ C4 r) G3 f6 ~* M" G* o. ?6 S. f: x
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??? ; J0 T+ c( {! X, @5 ^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???? / X& |1 q2 b9 B! m8 a g& T0 R# ^. w" J/ Q- _
& C+ {9 e' g' L' [0 m/ Y2.这是request的程序3 Z0 q8 P4 U( P# U8 ]2 y# [
// Request a value from Extend" l' n' c% s8 D+ o& H
//) C( P& [) V% j0 ~+ ~
// Initialize the variant that will hold the BSTR. Set the variant's- P: h- \9 S+ h# A" P& c
// type flag to indicate the fact that this variant holds a BSTR. Place the3 @- u' w2 m* e1 D
// BSTR into the variant structure. 8 {. X( x4 p: N1 B7 o . T) \; k! y) n2 y8 \& Q( z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); $ X6 x6 Q/ l: U3 I; M* T t. K2 h0 Q. l" P
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 s5 n" }$ ?# @+ a
VariantInit(&requestVariant[0]); 6 i) |6 |% ?" m requestVariant[0].vt = VT_BSTR; 4 K2 n3 Y; k; j requestVariant[0].bstrVal = itemStr;0 D3 Q# B# Z) v. @) v# B- A