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: $ ]% N2 Y2 L0 L( M8 OName = (WCHAR *) L"Poke"; $ v" M h. a) J; x. _2 r 3 k4 ]. v( J* b E B1 B' T
hr = m_pDisp->GetIDsOfNames ( 2 c+ Q+ I/ u+ [, Y2 A+ C IID_NULL, // reserved% ?) @* d5 n3 B9 i% q
&Name, // Array of names to get IDs for * E' i: Y+ q8 D# W 1, // # of names in the array 8 H. ^$ Z- X! n8 K# T% e- d3 A3 y LOCALE_SYSTEM_DEFAULT, // System locale $ C. U2 w9 m/ t9 H% n &pokeID); // Array of IDs to fill on output! h" R* I( s& `5 X& v4 O
& Y. t" |$ w3 Y7 ^: |; u. b if (hr) - e, Z; V$ A2 a3 l9 u9 e7 R# r' i' N {! }; s$ s( B3 X. M# {
MessageBox ("Get Poke Unsuccessful"); 7 x# Q5 P7 J- M return;- k: z5 J! N! S- a+ _! H
} 5 _" D1 R& B% I7 w" W! S5 ] * P2 F* l5 T' D0 S. f4 x/**************************传递数据给extend**************************************/ / N- M6 B# [" E, Z! @ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); . ^- F7 }' L# K& h: D 2 b Y( X5 r# F: E& ]
valueStr = SysAllocString((WCHAR *) L"1232"); 3 O( _2 j& P- x3 X4 Q- e0 N VariantInit(&pokeVariant[0]); * o- g4 P( t5 v7 d6 i pokeVariant[0].vt = VT_BSTR; % @ J- U& H( \ L+ j, t& s) Z pokeVariant[0].bstrVal = valueStr;) o2 h/ r+ @( q* f# D: y. d1 m
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 t5 t2 {/ q# _1 B6 Q2 {" X3 }" i, U$ |' t VariantInit(&pokeVariant[1]); % e. p. }* W |
pokeVariant[1].vt = VT_BSTR; 9 q, ]" m3 g6 Y4 ^4 l pokeVariant[1].bstrVal = itemStr;+ @& z0 g0 `4 K- l. u" J
7 ^; k- U; y7 z* K3 H d0 D" I. v topicStr = SysAllocString((WCHAR *) L"system");; X, H7 x9 j+ q0 l. i
VariantInit(&pokeVariant[2]); * v0 G/ f! O0 Q7 [+ Z
pokeVariant[2].vt = VT_BSTR;5 v) G' j8 z O
pokeVariant[2].bstrVal = topicStr; " [/ Q: [' A$ [- C3 \; {7 _; `6 P5 I) \ 2 Y. Y# @! N2 S# x6 y$ Z! l& p w// Set the DISPPARAMS structure that holds the variant. 4 y+ |- q3 h \; K: ^4 B, z+ j5 C 8 s! J+ n" n# n& i; }6 C% X dp.rgvarg = pokeVariant;' _- @) K2 L0 u9 N
dp.cArgs = 3;; F8 v/ G# `; p2 m& N9 q/ p
dp.rgdispidNamedArgs = NULL;3 L' o# I- `7 A/ l
dp.cNamedArgs = 0; ! l6 r% P, B) F) m* C2 h( e5 R0 H3 g3 ?! G& j2 j
// Call IDispatch::Invoke()5 P, O% F8 ~0 A4 L8 x d' x