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:' U) d( _0 s/ H! N* h. D
Name = (WCHAR *) L"Poke";8 `" M+ F. U! h* i, a
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hr = m_pDisp->GetIDsOfNames ( 6 b" `# R& N' g' Y2 J, t, {) Z3 \ IID_NULL, // reserved/ Y+ K3 Z' `4 I
&Name, // Array of names to get IDs for - v$ \8 {$ H+ M' v' Q+ B 1, // # of names in the array , U1 J3 K r" q, T LOCALE_SYSTEM_DEFAULT, // System locale% _! ~6 _' x! j6 D; \
&pokeID); // Array of IDs to fill on output 0 f. m' j" b! }6 [9 Z # V+ S; T2 ^+ |+ o' ~9 z% S% i D if (hr) 7 ^) y1 ?2 j8 e# q w { : O9 b6 P9 f* Y# f4 [- n- c' k: I MessageBox ("Get Poke Unsuccessful"); ; G% E* o* X# K( X return; * ?# @4 b i8 b+ { }' }; i& J/ q: U) X! v
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/**************************传递数据给extend**************************************/- E# r" ]- T% x* K! ~
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 4 N W: ]4 A% r7 l& U4 H / O. Z( T* ]: N* z1 Q
valueStr = SysAllocString((WCHAR *) L"1232");0 [% a1 v7 D0 p
VariantInit(&pokeVariant[0]); & ?, C0 }8 n( ]) Q7 q& J1 z7 V/ L
pokeVariant[0].vt = VT_BSTR;0 |2 c/ q0 G2 x7 K
pokeVariant[0].bstrVal = valueStr; 6 Z9 m0 ?6 A( q. b9 o4 Q6 u# k- O 5 [# p- J9 g; V G1 ^/ v; w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 J- M5 t3 G. k VariantInit(&pokeVariant[1]); 5 z2 |$ ]* k( R. x' g" u: G7 X
pokeVariant[1].vt = VT_BSTR; 3 p2 x2 t; _! T pokeVariant[1].bstrVal = itemStr; 2 X; O% ]1 T& ?: N- U5 s: z* R / ^- c7 ~" q$ |) S. L topicStr = SysAllocString((WCHAR *) L"system");2 B9 j# ? [' x. ]( g0 O4 p/ W/ p4 c
VariantInit(&pokeVariant[2]); ( k0 k9 y/ o! R7 T, \4 E9 } pokeVariant[2].vt = VT_BSTR;6 D* Q Q9 h; P9 y% B
pokeVariant[2].bstrVal = topicStr;& A) ?, @, t! [+ W4 M5 Y
1 k9 u- r" b8 {// Set the DISPPARAMS structure that holds the variant. ! x' O6 t" A* [% h1 U( j) g # X- X* E3 \- H# c6 t1 Y. k dp.rgvarg = pokeVariant; : J4 K4 L ~& t) J dp.cArgs = 3;! f; u+ {" g4 D7 S% N6 }
dp.rgdispidNamedArgs = NULL; " T7 N! C$ g, i- [ dp.cNamedArgs = 0;& t2 l5 O' `4 N( |
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// Call IDispatch::Invoke() 9 u7 U4 R) M" L5 f! J$ r) {9 k" O9 H* m9 s& a) @
hr = m_pDisp->Invoke( * _9 f* B2 i( O, O' z. k pokeID, ' L4 a7 x0 p2 M IID_NULL, : a& m" m% r, P+ V, ~ LOCALE_SYSTEM_DEFAULT,( x& B I) [7 q h! I1 _* F
DISPATCH_METHOD, , i0 c5 @' q8 w6 e! Z" q &dp, ) u' a7 E" w# M NULL, 2 B& r! C1 R$ R6 t6 a' T &ei,: A' i) N4 M7 y5 e
&uiErr);/ V; O% R! a7 U0 T5 r
% R0 G; i6 X/ x' x/ }1 p: P# L, V) B SysFreeString(topicStr); w4 S6 {: j+ o4 r8 i
SysFreeString(itemStr);* N; A3 m: }3 d. S/ c: S. Y2 g
SysFreeString(valueStr);5 ?# ^, Y% Z* ~& u) b" ^% n
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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???; b1 h' J9 R1 v5 S! M4 I( W
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????+ t/ p, I- \! F* K: L3 e0 ~' x; L" I
. y3 a8 Q1 Y! n, |# z8 r % S. \, f, I, W- S+ ?2.这是request的程序, Y9 r2 ^% `& q' N
// Request a value from Extend 0 v: a! X O8 P9 x; v! k" B//- R2 U' M, I% `! q8 X0 W* S7 D
// Initialize the variant that will hold the BSTR. Set the variant's 0 {8 P2 T# b$ G! V// type flag to indicate the fact that this variant holds a BSTR. Place the: s9 N4 \* u/ L$ y& m
// BSTR into the variant structure. * ~& y4 d% Z X; g+ x+ y4 _ 7 |% e7 E& {; r* I+ Q! | requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* `) f4 n. Z. g! Q/ c1 q1 m+ b7 _4 E