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:2 N% N9 @; z' U0 l$ i
Name = (WCHAR *) L"Poke"; \! [% O7 O) k" `3 D
1 u# W, p) b, G. h1 K& R+ J: U hr = m_pDisp->GetIDsOfNames ( ' E- g# k k& }2 m IID_NULL, // reserved " ^1 S8 y3 f9 j" M0 M m+ ` &Name, // Array of names to get IDs for 6 S7 B' G2 p3 y9 ] r3 T 1, // # of names in the array x; ?5 I3 z: x9 ~ LOCALE_SYSTEM_DEFAULT, // System locale 7 K2 L1 O1 }" a# Q1 H &pokeID); // Array of IDs to fill on output9 m1 l5 \* G7 l* ~7 e2 T
5 N) Y2 K7 X( X6 v2 P" n' p6 a- [ if (hr)1 }) q: i( x O, r' U4 w
{ 8 _+ s; k# ]/ K1 z MessageBox ("Get Poke Unsuccessful");; e- s/ `8 u8 u) u
return; : b( Q, ]8 A: P }3 n2 `% t C% R R) X- ~
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/**************************传递数据给extend**************************************/- B6 [; ]3 r# j* U* |, _
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); & V% v+ a5 M% q " C1 m4 l- c0 {% b+ {1 W% e1 R3 {
valueStr = SysAllocString((WCHAR *) L"1232"); % i& U2 j) P' e: B4 A% i2 q( K VariantInit(&pokeVariant[0]); 3 R$ T2 z* k( H$ C pokeVariant[0].vt = VT_BSTR; 6 O( v0 ~1 F# C9 \& o pokeVariant[0].bstrVal = valueStr;& i `& P, e* B. g
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - F3 {3 |. r% c I+ g. H/ v5 v t VariantInit(&pokeVariant[1]); ' Y# Q; u) G2 u" U" m
pokeVariant[1].vt = VT_BSTR; 7 Z0 D0 x, s9 i+ u pokeVariant[1].bstrVal = itemStr; * L( |5 `4 G7 B4 Y3 E0 ?! i! Y 4 D8 f0 L3 M- ^7 }% Y* U topicStr = SysAllocString((WCHAR *) L"system"); - L2 m) [% \4 v3 G8 s5 j: k VariantInit(&pokeVariant[2]); @. x. @2 m1 q/ M! ?7 H pokeVariant[2].vt = VT_BSTR;! q6 @1 e3 F( \
pokeVariant[2].bstrVal = topicStr;& j) H! ?# E' T' y, K
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// Set the DISPPARAMS structure that holds the variant.: V, A( ?7 L: V* S
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dp.rgvarg = pokeVariant; & E% g$ }! n4 d* \! G6 P) y dp.cArgs = 3;# d+ K7 F! j' d; k0 _
dp.rgdispidNamedArgs = NULL;' ?% p8 i& Y8 |' N
dp.cNamedArgs = 0;7 ~; a; R1 r6 G* a. P- Q; f