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:. b4 @5 G" T9 \
Name = (WCHAR *) L"Poke";$ d5 E: Q: ^/ H. G' N
* g u' H. |( U* f) l0 I hr = m_pDisp->GetIDsOfNames ( 7 V: V9 _) e, Q IID_NULL, // reserved : |3 Z* i( w, Y &Name, // Array of names to get IDs for # p6 g1 U: V# }3 Q6 ^4 \ E 1, // # of names in the array 8 c5 G' k& M" S3 A8 _; }+ z LOCALE_SYSTEM_DEFAULT, // System locale . i9 W* H3 f8 T% v- ~4 y* V) [- A &pokeID); // Array of IDs to fill on output" P1 Z0 G/ H/ h, h$ \1 W
% Q% U2 i( {2 p- N- w1 s if (hr) ) d2 {% t# j. ] L: j/ [ { ! x6 Y% H# `+ D7 K5 `3 N MessageBox ("Get Poke Unsuccessful"); ' e- ]# Q1 a) @$ J return;7 p( m: b/ R# G
} . k8 w) k. T+ _$ L2 I5 s( k: m# S # k1 e3 D& y) N/**************************传递数据给extend**************************************/ * p) ^6 O" `5 q# }6 n pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : d: f5 m9 j; x T- ]2 h9 z % y& P! d* ~1 a3 o
valueStr = SysAllocString((WCHAR *) L"1232"); * z2 Y; U$ |7 _; K3 q8 F VariantInit(&pokeVariant[0]); . I- {9 Q8 t: n
pokeVariant[0].vt = VT_BSTR;( @0 Y& Q' ?. i" c! g( R' P
pokeVariant[0].bstrVal = valueStr; " s) |/ {. U" a" b! T0 P. Z7 f0 R" G! f6 l, c2 ?) E
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) p( C7 z/ h$ b% L3 V. r
VariantInit(&pokeVariant[1]); 2 ]9 C: u" v6 K5 i pokeVariant[1].vt = VT_BSTR; ! V3 K3 t) e4 a4 J pokeVariant[1].bstrVal = itemStr; 7 H) O4 k9 j/ N, V/ B4 [& {% \* P& n" c4 I* k
topicStr = SysAllocString((WCHAR *) L"system");1 U$ f$ j$ C6 y4 u# R4 \
VariantInit(&pokeVariant[2]); $ v8 N/ o# F+ G$ {" t pokeVariant[2].vt = VT_BSTR; " m0 w1 B" j# I; N6 X8 }! @$ p- H pokeVariant[2].bstrVal = topicStr;% P' H2 @2 m( ^7 L& ^
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// Set the DISPPARAMS structure that holds the variant.& j) k- U8 ?) h
# e8 C( A# I" o+ J* I dp.rgvarg = pokeVariant; $ ?' v8 [3 ^8 ` Y: T0 Y) M3 } dp.cArgs = 3;9 e$ ^( f( {3 X
dp.rgdispidNamedArgs = NULL; 6 \6 D& b/ l( @4 z' M! {4 k) S dp.cNamedArgs = 0;* Y. o9 b7 w+ v+ a$ W1 j
/ ^7 v- K+ O# {- x) ~7 }
// Call IDispatch::Invoke() 1 V4 e1 A! m; \& M% t) k2 ^! `; u1 X
hr = m_pDisp->Invoke(; z! ~7 d! K6 Z: G' y- @. K6 W
pokeID,/ e8 t7 a# {+ L$ C
IID_NULL, [, f0 J$ E# F
LOCALE_SYSTEM_DEFAULT,2 x+ O Y* \9 ~
DISPATCH_METHOD, + ?( D# B6 _% c+ g0 v &dp, 7 X7 @! j7 g1 ^. x NULL,, D0 @5 r2 Y1 k
&ei, 8 f* G+ @8 s+ J% Z/ l7 M &uiErr);2 ?# g- ] w. M" `
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SysFreeString(topicStr); m% i2 e, |! Y( W/ X: I" T
SysFreeString(itemStr);6 L, }' ~9 H4 l, s1 [; w
SysFreeString(valueStr);9 G$ e* s& R! W; x! l+ J4 q A