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: ( `* n( y/ P8 y0 r7 V2 @7 Q' wName = (WCHAR *) L"Poke";2 R" Y' j5 T, Y$ C/ s$ `
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hr = m_pDisp->GetIDsOfNames (7 m) ` d z0 k; P, h, x
IID_NULL, // reserved / W+ J) }1 y$ e M5 f &Name, // Array of names to get IDs for( `' H T6 W, e
1, // # of names in the array5 k( Y0 v5 @, N6 ?; k
LOCALE_SYSTEM_DEFAULT, // System locale 8 Q9 `: G9 @! r. y/ i &pokeID); // Array of IDs to fill on output9 V" v% p; B: t# H: s
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MessageBox ("Get Poke Unsuccessful"); 4 K6 l( @* t- W return; . L& T$ q X, B) X4 n }0 i8 d+ t8 q/ B
6 U/ w4 d4 F o& x i9 g/**************************传递数据给extend**************************************/ # U: R2 Q; V: b pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); G3 g4 {2 u& ]) k# H. o3 _ & U. d7 k0 y4 U5 G
valueStr = SysAllocString((WCHAR *) L"1232");! v4 p) D1 @- I6 E
VariantInit(&pokeVariant[0]); . H% s! [, Q6 Q pokeVariant[0].vt = VT_BSTR;! T* {6 _ K! N! I' s ]; e
pokeVariant[0].bstrVal = valueStr; " H8 R' {0 X" [1 P' {3 g' ]) w : m+ K4 q- I" U* }% K itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 P2 h5 u. F7 o, t6 X VariantInit(&pokeVariant[1]); , F; k6 z1 J$ s4 K1 D% O
pokeVariant[1].vt = VT_BSTR;9 Y6 A! j: M7 ?$ V) U
pokeVariant[1].bstrVal = itemStr;4 c! ?9 L0 v6 Z$ A1 }( `: m
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topicStr = SysAllocString((WCHAR *) L"system"); & O# a! [6 {4 i, L! _ VariantInit(&pokeVariant[2]); ) v/ t) `- @; B$ H' Q _
pokeVariant[2].vt = VT_BSTR;% m1 ~% r' C2 V
pokeVariant[2].bstrVal = topicStr;) Q9 j/ H" W4 c4 b
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// Set the DISPPARAMS structure that holds the variant. $ l9 a. f3 z4 l/ U5 f+ K# q y( [2 \5 F: ?1 U% A dp.rgvarg = pokeVariant;% W+ L7 s- B* d2 C( ]
dp.cArgs = 3; $ {! d4 U% ]+ u. q% E& K dp.rgdispidNamedArgs = NULL;$ j, _) q! ]! c+ T+ {4 h
dp.cNamedArgs = 0;- |+ M5 @" O; Q U' W* j- `6 c6 K
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// Call IDispatch::Invoke() ( |1 w! q9 V$ ]! \9 M; M7 W6 X8 _# r7 l
hr = m_pDisp->Invoke(6 R9 s& X* x, C$ {# [! k) M2 G5 W
pokeID, / |) \+ I& v2 @- C5 K- }" s/ z IID_NULL,# F' S$ h* u/ l/ p* u
LOCALE_SYSTEM_DEFAULT,* R! j! p n. F6 e# C
DISPATCH_METHOD, & d0 s+ w( H' s! R' I &dp,# A \- |! `( f% M2 m, w0 F
NULL,/ V% J% |: V$ j2 O. b; V% N
&ei, 9 W' Z( ` e* G3 b- O4 } &uiErr);: T" s9 w4 b; J4 v0 E