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:- s9 Q) E6 R* e, O1 z
Name = (WCHAR *) L"Poke";8 H3 P- w/ B0 l T& F
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hr = m_pDisp->GetIDsOfNames (" J( F- X: R4 V; ~; ^' T1 d4 @" U
IID_NULL, // reserved- l, r+ _ M$ h* l
&Name, // Array of names to get IDs for0 Q7 B4 [& _, M. ~7 }2 Q: ]! Q
1, // # of names in the array & U% O. f# I' t LOCALE_SYSTEM_DEFAULT, // System locale : K: R6 B; f- Z4 Z &pokeID); // Array of IDs to fill on output 4 u! r9 X7 I3 f. _+ d4 f. R * `" H- Y* {5 B+ k X6 t m
if (hr)2 d9 ^! {$ F1 E% ^! g F
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MessageBox ("Get Poke Unsuccessful"); ! o; ` D! o" n. @( { return; . P1 _7 e9 u' E+ M }" R% t8 z0 |' d) ?$ K
l/ S/ F* l/ q4 Q" }/**************************传递数据给extend**************************************/ 4 P* f7 S$ Z$ i2 U- R pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 4 z; W0 {9 y4 `! x2 \: i6 \9 e: p 4 ]6 b! b/ X K5 z3 _ valueStr = SysAllocString((WCHAR *) L"1232");) ?5 F* p- t5 U
VariantInit(&pokeVariant[0]); 2 X3 `) f( K. D7 N7 D0 X pokeVariant[0].vt = VT_BSTR; 4 W- v9 c, S: M' q pokeVariant[0].bstrVal = valueStr;1 U& m z- M. ?' V- D& V* _4 d- ?* r
$ z/ j6 t" o3 m5 U6 i itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 N! ~- m) q% D: q. X% W VariantInit(&pokeVariant[1]); - l' |5 m0 {$ f) K7 T* F5 S
pokeVariant[1].vt = VT_BSTR; 3 N h+ o0 Q5 f2 L2 V& V pokeVariant[1].bstrVal = itemStr; : [' e- |- W2 v7 K. Q* w4 d& | 7 t' ?& o' M% g; _6 C0 h& s0 D topicStr = SysAllocString((WCHAR *) L"system");, Z( P6 Y' G$ }, M, i4 c
VariantInit(&pokeVariant[2]); ; {2 T, Y* E7 h! G7 B
pokeVariant[2].vt = VT_BSTR;3 C- a5 g. t% ?8 b% D+ t
pokeVariant[2].bstrVal = topicStr;2 A% l$ g5 b: \" j* ~: k
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// Set the DISPPARAMS structure that holds the variant. 7 j& }- G9 `8 |$ I$ i$ b% {/ P# a# ~: N6 Y( Z' i
dp.rgvarg = pokeVariant;4 }1 J( `# \5 K# P' R ?) _
dp.cArgs = 3; Q& Y, x& A% E4 e
dp.rgdispidNamedArgs = NULL; & ?) L) c! k7 Z6 @; s dp.cNamedArgs = 0; * B/ F- e3 q$ m$ V/ K, o; M1 d1 c4 ?4 O4 k4 Y( K* [
// Call IDispatch::Invoke()+ c- m" X5 K, u k6 t3 c. m