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:1 L; J2 g& F+ h) t9 b% S! z5 e- m
Name = (WCHAR *) L"Poke";0 G0 b2 j; z; N$ ]
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hr = m_pDisp->GetIDsOfNames ( 6 k z& b, o1 C8 e Z F IID_NULL, // reserved : B. M& g0 V1 R d7 Y# W &Name, // Array of names to get IDs for3 A/ W- w- V5 B0 k
1, // # of names in the array* R2 a3 M# C" ^) Y% w' V, H! r
LOCALE_SYSTEM_DEFAULT, // System locale# s8 F- l9 U+ p4 V+ X
&pokeID); // Array of IDs to fill on output& n( f+ `7 u' ~0 ?3 y
( u, W6 L0 \6 D. X, q* A& D( w if (hr)2 x5 Q I% W4 ?( u; _0 a: Y: F4 N4 t/ J
{ 9 R1 E3 o5 |) [3 U4 v MessageBox ("Get Poke Unsuccessful"); - g+ r3 V# J5 [ return;1 d' J9 }" w, C J
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/**************************传递数据给extend**************************************/ # e- |$ F: C' ], g- ^0 b3 r pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); m- K9 K; c& f4 |' N$ W% ~$ I ! k' w- N6 P; i- T valueStr = SysAllocString((WCHAR *) L"1232"); , r' k2 F: ^ N VariantInit(&pokeVariant[0]); . l) C2 O! l& ~$ G
pokeVariant[0].vt = VT_BSTR; ; p3 `+ _1 R9 u# t% ~ pokeVariant[0].bstrVal = valueStr; 1 C+ U* O& b4 o: z% I " p% |3 e$ t2 X1 R6 d itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. o J) U: R* ~! k4 u: U
VariantInit(&pokeVariant[1]); 4 p, I1 P5 ~. P& ^2 V pokeVariant[1].vt = VT_BSTR; 6 r& g: A# K# I# M, O3 J; j pokeVariant[1].bstrVal = itemStr; 5 b5 _, i5 e5 H! F! Q+ A 5 s, s1 q7 V- B! K; k topicStr = SysAllocString((WCHAR *) L"system");6 m# Z. [: V& `7 q3 t! T: t
VariantInit(&pokeVariant[2]); e( _6 ]3 O. f( \0 k+ q$ ^
pokeVariant[2].vt = VT_BSTR; ' Y+ h+ L2 A; s: m$ ~ pokeVariant[2].bstrVal = topicStr;8 Q# k; Y7 ^. T u" c7 M( o- o3 u
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// Set the DISPPARAMS structure that holds the variant. 1 Y" f+ p, h( R1 N : z- d6 ]; z# D" h: A; X& ? dp.rgvarg = pokeVariant;3 X/ N6 t% F. g1 |# {
dp.cArgs = 3;$ A$ A0 X. ?7 S' `, L
dp.rgdispidNamedArgs = NULL;7 u' @: X" J0 f: O
dp.cNamedArgs = 0; & J1 Y: s% D$ f* w/ ^ . S/ Z. c l9 h7 T \% L. T// Call IDispatch::Invoke()& s: C- `* t% ~) ^' s
7 W! V. p3 l' a- w: Z hr = m_pDisp->Invoke(1 z" f) t c: E4 r. f1 A. h. k
pokeID,3 V6 `0 O5 q4 ~1 r, h. _
IID_NULL, $ k% R. q) \1 X8 }; r; ~4 t5 g& | LOCALE_SYSTEM_DEFAULT, - N; G; Q- |0 ]3 U. E$ s DISPATCH_METHOD,! f! B* `+ t" p$ r G( P; P. Q/ I
&dp, # c# ^& _( }2 f+ o4 k NULL,5 x1 ]3 _5 l3 C! b. T7 k
&ei, 7 f% P/ B" A- K( d+ U: k" c* @( |) c" w# ~ &uiErr);3 `1 L% x' O) l% `0 G" l# D# T