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:. R, E' U+ O! N* |. P
Name = (WCHAR *) L"Poke";, F& n a! ^( d. ]# ]1 T) D
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hr = m_pDisp->GetIDsOfNames ( ?% V' a1 {" A6 Z IID_NULL, // reserved/ G* D8 ]) \! p0 c/ C
&Name, // Array of names to get IDs for ' j( ^( g+ c' n2 @ 1, // # of names in the array( e" N2 S5 x7 l
LOCALE_SYSTEM_DEFAULT, // System locale " u) K- k& d9 U" h. P6 }" o &pokeID); // Array of IDs to fill on output 9 z5 Q/ m) G( O5 X. k* ] n * r# h; w& [" A8 O5 Z0 u
if (hr)6 x8 V1 v( G; t8 f# ^
{ ; _; b, v$ P. R: g MessageBox ("Get Poke Unsuccessful");9 V0 o6 v8 n4 }* ^- F4 P4 B0 r+ l1 z
return; ! O$ d4 u7 L: X } 7 ^9 z* W3 w# P7 N) b' H8 s4 c ]8 y# r2 u1 i% ?& J
/**************************传递数据给extend**************************************/' N5 k! b$ T9 c+ j$ |
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 6 a P9 u) y1 Y + G" u; ?# N8 Q( j
valueStr = SysAllocString((WCHAR *) L"1232");" M7 c- \6 B! w; A* x6 b: f
VariantInit(&pokeVariant[0]); % f1 o. H3 r1 W" m/ f3 T pokeVariant[0].vt = VT_BSTR; / k. P+ H" [4 P$ l+ ~ pokeVariant[0].bstrVal = valueStr; 6 }# l$ K) D. L" T7 y& X9 q. o( Z5 w ~6 K* v) k
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 G) e( E T6 p7 f$ w" F
VariantInit(&pokeVariant[1]); . C& n" L$ B* W
pokeVariant[1].vt = VT_BSTR;: N+ o" ~) z" m, w
pokeVariant[1].bstrVal = itemStr; 6 \* u" q O/ d q- X% ]. O2 y 5 T- c( ]4 s) M topicStr = SysAllocString((WCHAR *) L"system");: b* C" Q2 [& C# M7 n( }3 H9 K# X
VariantInit(&pokeVariant[2]); 8 j& p7 p* u. ?0 {
pokeVariant[2].vt = VT_BSTR; 0 K5 z a/ e% Z6 X pokeVariant[2].bstrVal = topicStr;+ t3 F+ j- l( B e% \1 s
7 B6 d4 A0 s+ t% G& P7 ]. @: q// Set the DISPPARAMS structure that holds the variant.9 \& J, K. e2 t9 b" @# y6 W
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dp.rgvarg = pokeVariant;4 o( m. S! g* `' g! k$ {
dp.cArgs = 3;3 |7 l+ J0 u( j" e
dp.rgdispidNamedArgs = NULL;4 J5 j! }" ~5 f4 K2 w$ b
dp.cNamedArgs = 0; ( n5 ?# N' k. Y* z ( Q9 C) B \% P// Call IDispatch::Invoke() & g5 C1 l) w5 D" M ; ?, w- z0 K+ Q( ^) m hr = m_pDisp->Invoke( 8 f8 i0 `0 F9 P5 B9 _: p pokeID, 5 M, y+ {; T( Z6 } IID_NULL,# P$ C6 R8 y9 N9 t: Y/ d; V
LOCALE_SYSTEM_DEFAULT,9 c& k: B! K% m* P% |& q n
DISPATCH_METHOD,: v1 j7 M* H; ^
&dp, 5 k, Z& @: [, s NULL,) V7 u8 F) e$ Z3 L8 o2 |" R
&ei, + Y' z" K- [# A. ~ &uiErr); : Q3 |8 F! H1 l/ _# x4 {9 o1 A! G. q1 g, [6 u2 Z" O' m8 q3 B/ r
SysFreeString(topicStr);2 G/ H1 o1 }8 E7 B
SysFreeString(itemStr); - }+ L* y% a/ I+ H) Y4 i SysFreeString(valueStr); / f6 g9 B: r/ H1 ]& e" g; V* q: l' s# _% g
现在这个程序可以实现将1232这个数据发送到extend,extend有一个对话框弹出并出现1232这个数据,不知道这个对话框为什么会弹出并显示这个数据??? " X1 R4 @( H! Q此外我希望将这个数据赋给extend程序里面的一个变量,请问如何实现???? 0 K1 U' ~3 r( d) S) H; k. [& f! T6 e6 N
4 T- o0 T3 G( O+ Z; {2.这是request的程序, ~% b; P c W
// Request a value from Extend, a% {5 c: g# R2 ]6 O1 m( X$ m$ ^
// $ D4 R( V8 k; A, d// Initialize the variant that will hold the BSTR. Set the variant's 6 \9 S6 w) {" s8 v// type flag to indicate the fact that this variant holds a BSTR. Place the . @) B* \' x3 E2 h* v* t, T/ Q// BSTR into the variant structure.$ k7 z: ~7 D! ^7 N: I