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: 0 W) c) e1 c/ k sName = (WCHAR *) L"Poke"; [% g9 @4 I" g+ k# W+ k s
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hr = m_pDisp->GetIDsOfNames (+ Q/ a8 m2 j8 d+ Q
IID_NULL, // reserved ) y7 ?; Q& ?+ @) L &Name, // Array of names to get IDs for # l3 o( \- ~2 ]* U( Z! c+ d" T' O' @ 1, // # of names in the array9 M [, L( M2 C5 h7 b5 N
LOCALE_SYSTEM_DEFAULT, // System locale& y1 L, y& O4 M9 q
&pokeID); // Array of IDs to fill on output2 O: h" P4 L y% C3 x, U# P0 {
) ^5 d! B3 K! D' ^7 D if (hr) % k8 ~5 f0 I" }, @9 X+ N { ) y9 _3 H3 m8 i I* R MessageBox ("Get Poke Unsuccessful"); M! z; q7 T1 K2 D2 q$ h return;% `* T- S- X: l w
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8 H& I0 H' i6 ~' t8 J/**************************传递数据给extend**************************************/ / D) Z1 @+ Z' P$ s9 f! Y4 E pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - J- o5 W) E* d+ W/ A0 { + _9 M& X0 g! F; q valueStr = SysAllocString((WCHAR *) L"1232");9 T; \3 i3 ]; J& a
VariantInit(&pokeVariant[0]); 1 V% b: A0 e$ A
pokeVariant[0].vt = VT_BSTR; & q9 \6 _$ g$ X d7 R7 c pokeVariant[0].bstrVal = valueStr; 9 X4 r/ B- D& c. x" L ^5 B" }, O0 F& C5 d6 G% k
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ P$ q! E. W3 @: i! x' y VariantInit(&pokeVariant[1]); + C* \0 d7 Q* j+ l8 U) N2 F
pokeVariant[1].vt = VT_BSTR; p+ \0 y) d; {5 v pokeVariant[1].bstrVal = itemStr; / F. G5 z! l( I ( T! C( ?% W2 W4 e9 T2 G x+ D topicStr = SysAllocString((WCHAR *) L"system"); % t. T- c) _ ]) m6 f VariantInit(&pokeVariant[2]); 9 h9 x3 Y8 n7 s4 F6 Z pokeVariant[2].vt = VT_BSTR; ; O! B; B6 J& p% j pokeVariant[2].bstrVal = topicStr; ' ~- j2 V' n3 i7 v 2 |' W$ ~" H, d# C! ~1 s6 p// Set the DISPPARAMS structure that holds the variant. , w2 o- `3 F. e. y! i3 J- |. L% J" [9 \4 A/ ~6 O. W( X! C
dp.rgvarg = pokeVariant;6 p) X0 l' I. D$ G: [ U
dp.cArgs = 3; 7 H4 `; J' M- @% r) o% s dp.rgdispidNamedArgs = NULL;- I+ _/ ?$ B3 ?0 T
dp.cNamedArgs = 0;, c2 N; _) Y4 k+ H, x, B3 I
, L5 F# h# E8 |/ q// Call IDispatch::Invoke() 1 }" Q4 W0 {) Z6 _3 i6 X |) Q7 x- M! K9 C+ o hr = m_pDisp->Invoke(, B0 n) M+ j- P) l2 x S' d8 g, k8 f
pokeID,, N4 D* V* t- ^+ c: L k
IID_NULL, $ X% e: S& s: P2 U& m4 N LOCALE_SYSTEM_DEFAULT,' \& \9 f: J ]; e5 x
DISPATCH_METHOD, ' P3 E! `+ H5 X3 ]3 w# J! I* U! J &dp, . _ z8 o& g; u. W7 W# i NULL,' U" z# m7 t$ b- {1 K/ Z
&ei, 0 Q# D: p( e) g! A &uiErr); * {: B( A* F& m% q* S0 ^( m3 r: ?3 O# [: R
SysFreeString(topicStr);6 {$ Z0 [7 b% @2 N6 D2 N9 w" P7 W/ V
SysFreeString(itemStr); # U# T E! G1 A# b' A" ?- b9 ^* X SysFreeString(valueStr); G) j/ R5 ~7 i- o/ y z
0 A# k) O+ V9 ?, A. U& e8 o) h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??? & N( A# T# R* t# ]2 \' {( q- T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????* Q) s# \; C) U& N/ w4 E7 O
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2.这是request的程序 9 O2 k+ _* S; @4 p3 s" r4 O, }( v// Request a value from Extend1 n: J7 o" X% A. N* `! k2 D1 d
// 7 e" A- s* I8 h6 D2 d! \ n5 A7 R// Initialize the variant that will hold the BSTR. Set the variant's : @! K+ l. u$ b+ Z7 D// type flag to indicate the fact that this variant holds a BSTR. Place the 5 l1 \- s: Z" E* K// BSTR into the variant structure. , f% L6 D1 K' W. m! L$ T5 v : f& Z) n; C! Q3 u2 p requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 A* a* o! x, Q2 {1 j4 b