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:5 C3 J) n. ^, m$ @# G: q- n
Name = (WCHAR *) L"Poke";+ p: R) X$ C, g4 A2 o/ `' W
, x9 y) R6 t4 d9 P% G | u$ M hr = m_pDisp->GetIDsOfNames (* { ?- {; o- ~. J5 n
IID_NULL, // reserved " \: V7 r# [- D1 a &Name, // Array of names to get IDs for 1 o7 C+ x7 `- T! B1 c 1, // # of names in the array _4 D3 j1 v) s3 S LOCALE_SYSTEM_DEFAULT, // System locale' V3 |+ H0 R, W7 J' F# I5 @
&pokeID); // Array of IDs to fill on output2 s6 y4 c+ Y5 g T% w y5 h
& z+ v+ }& Y3 I# c) X if (hr)+ y8 `# ]) w( K+ R+ t
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MessageBox ("Get Poke Unsuccessful");% m/ q3 C+ X2 ^ u$ B3 U- ^
return;8 ]1 E5 C" W- T5 v
} ( l f' R( T2 H; B$ K) p. }* u 6 u$ a9 L$ w0 u" {/**************************传递数据给extend**************************************/" y& p) ?/ e4 h5 @8 b6 K
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: K! U$ A; ^2 x# v2 q2 G
: z( e* s# Q- K/ a' z5 ~ valueStr = SysAllocString((WCHAR *) L"1232"); , C" S& C# X1 {: Z VariantInit(&pokeVariant[0]); . }( Y) w6 E6 j pokeVariant[0].vt = VT_BSTR; . G; B3 F3 D" h v pokeVariant[0].bstrVal = valueStr;2 M$ H& A9 C' Y) q- m. ^
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 f2 z+ J( Q3 v1 w
VariantInit(&pokeVariant[1]); 6 b r X' T7 w pokeVariant[1].vt = VT_BSTR;5 T5 c: t7 k, a# H
pokeVariant[1].bstrVal = itemStr;. y0 D5 k( f) v
- V9 U9 i0 l1 y( q/ y topicStr = SysAllocString((WCHAR *) L"system");2 J! z* F, n: _" S; X) p) i
VariantInit(&pokeVariant[2]); " ]% p* J. _' a0 Y) p4 Y
pokeVariant[2].vt = VT_BSTR; / i7 J$ ^8 B* v. J0 c) u pokeVariant[2].bstrVal = topicStr;6 y0 ?1 _+ e: [8 K
2 h( j7 d+ b! V( C; p// Set the DISPPARAMS structure that holds the variant. + s. J* C' }6 X$ y0 L+ z* N7 E0 S " w+ `7 a. K" H/ m+ _8 U dp.rgvarg = pokeVariant; u7 [) ]- _2 ^4 Y" ?3 @( L
dp.cArgs = 3; % t' g/ ] h" P% c: ^; T dp.rgdispidNamedArgs = NULL; - Q5 x4 n: i0 n6 z( Q0 b dp.cNamedArgs = 0;$ m+ X# m2 @) M2 @8 ^- J