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: # t1 R4 m3 W R' L7 fName = (WCHAR *) L"Poke"; 3 N( L4 ~5 i, W a8 U6 o' l5 x 6 [0 l/ ] g% Q! W/ f P; v hr = m_pDisp->GetIDsOfNames ( ( \7 f1 n0 H6 a& g: |8 d IID_NULL, // reserved2 P$ Z7 B% a* W; d4 U
&Name, // Array of names to get IDs for ! U, h! T) |+ O F8 \ 1, // # of names in the array / e {# G" G$ |7 `+ X LOCALE_SYSTEM_DEFAULT, // System locale% I8 K0 e% z. n7 L8 Q+ M
&pokeID); // Array of IDs to fill on output7 b6 b3 `# n1 y2 B, r) I5 B
3 h3 m2 z. H8 ~: | if (hr)2 |/ }" K8 y' H
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MessageBox ("Get Poke Unsuccessful"); 6 j# h; V( o) A+ } return;. m0 a4 r4 W; j+ b. h1 I$ }
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/**************************传递数据给extend**************************************/ ; }: Z. B7 p; z1 l# o) W pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); L4 T& o' ?; t. B) r$ F6 r
( F% G) y8 A: N- A- _) o valueStr = SysAllocString((WCHAR *) L"1232");& j1 i k0 U. K" N, k
VariantInit(&pokeVariant[0]); & F& n2 F3 u# T, L% [9 d5 _
pokeVariant[0].vt = VT_BSTR; ) s- f* a5 g' z& c5 v pokeVariant[0].bstrVal = valueStr; ) J! h f' G: V' Z# \ & l0 L- q/ z, R. P; K itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % h3 g, N5 M2 q( W x) _ VariantInit(&pokeVariant[1]); 0 i5 ~8 n/ s0 U! t! T5 z+ ?
pokeVariant[1].vt = VT_BSTR; c( {6 p1 v2 A4 Y
pokeVariant[1].bstrVal = itemStr;& s9 c( S- E B1 v
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topicStr = SysAllocString((WCHAR *) L"system"); ' E7 l6 O& c9 M4 s1 m/ X VariantInit(&pokeVariant[2]); : u' x! t+ T/ I% T# X& ~2 o0 K! n
pokeVariant[2].vt = VT_BSTR;8 q7 J. |. \* L: ]7 k( Z4 I
pokeVariant[2].bstrVal = topicStr;3 e4 [" W, Q5 _- o+ y) R
4 m5 n6 A- W: F2 O9 i, \// Set the DISPPARAMS structure that holds the variant., m% Q4 j0 L; G! |4 r" M
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dp.rgvarg = pokeVariant;- c7 x3 z0 y. P( H9 Z. q& t
dp.cArgs = 3;/ }& K6 w" o: }: p( f7 W
dp.rgdispidNamedArgs = NULL;1 Y. N# i( y+ l9 D
dp.cNamedArgs = 0;! _" p5 h, G/ |1 ]