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:( s8 B) R9 ^2 t$ d/ v3 u
Name = (WCHAR *) L"Poke";# d! f& C- a* W& E
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hr = m_pDisp->GetIDsOfNames (* u B( j2 x$ ~! A+ ?
IID_NULL, // reserved0 Z& l' _4 L7 S0 m+ f" ^
&Name, // Array of names to get IDs for 7 L- b( o, L) }3 Y. N3 |+ s; d 1, // # of names in the array5 u& V6 g9 _/ F' B8 Y
LOCALE_SYSTEM_DEFAULT, // System locale; s7 z! P3 @ F! \0 I
&pokeID); // Array of IDs to fill on output . |1 g8 ~1 L9 T$ w( @1 l 9 Y' i) o& F. N: Y& t if (hr)* F) z7 e7 y" j: P0 o) h+ D
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MessageBox ("Get Poke Unsuccessful"); 0 W) m7 y: P5 I/ A return; 4 d. u. D- b8 b( J' u }9 G7 F3 _# Y' j. s" U
' }: F4 @: a( p/**************************传递数据给extend**************************************/ * x" r8 u0 F$ f. Q8 w' ] pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 x& I: h- ?( m; B" S
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valueStr = SysAllocString((WCHAR *) L"1232"); 4 H2 W0 E- |& B: o. m VariantInit(&pokeVariant[0]); . l# k% X$ t7 f( [+ l3 B3 Y4 p4 }# y6 y pokeVariant[0].vt = VT_BSTR;% [0 P8 o* t% A9 [. P' t1 N7 T5 d
pokeVariant[0].bstrVal = valueStr;! I% c3 D+ o9 g. k
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ M; Q( F( W( _8 J) m
VariantInit(&pokeVariant[1]); ; G$ E6 M+ ?6 ]/ u; y" y
pokeVariant[1].vt = VT_BSTR; % [2 W2 f: X ]$ ` v. T7 W pokeVariant[1].bstrVal = itemStr;' O( v U$ v3 V& }
3 }: a2 x, X2 \" x2 T topicStr = SysAllocString((WCHAR *) L"system"); 5 b" b+ i2 Y: [' k' }! n VariantInit(&pokeVariant[2]); ; g( o0 d# G: D/ d, C8 c
pokeVariant[2].vt = VT_BSTR; 2 C! w6 x0 G* z: }, p8 f pokeVariant[2].bstrVal = topicStr; ! { P0 Q& E% ?+ ~ 6 n" ?# r; g2 h+ z0 y h% t// Set the DISPPARAMS structure that holds the variant. 9 N$ n- `* \0 Y9 e9 K8 q5 @ 9 P& O. t. a* U4 | dp.rgvarg = pokeVariant; 9 ~, S, Z; b9 ~) I2 H" A dp.cArgs = 3; & X+ X0 h: p6 F$ K6 A dp.rgdispidNamedArgs = NULL; _$ _; |) I/ b dp.cNamedArgs = 0;* U- x% B/ J% Z$ l% x