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: ' z: [6 Q0 p: I/ M( ~( h5 O* eName = (WCHAR *) L"Poke";) \) g5 m, q' Y, U
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hr = m_pDisp->GetIDsOfNames (" E" y: A( c1 \7 `# z" b: e
IID_NULL, // reserved6 A3 i1 |% y, F2 h0 D
&Name, // Array of names to get IDs for P1 W( A9 Q( e# u8 g3 j- O
1, // # of names in the array3 R8 R O6 O3 U* W* x8 n4 O
LOCALE_SYSTEM_DEFAULT, // System locale4 n0 V& ~; a" r3 `! A. X
&pokeID); // Array of IDs to fill on output3 P& L7 I- j4 @6 B: \
/ d% f' e1 z: P+ [5 U if (hr) ) _+ y8 a+ A: u% ~% W { 5 K; O; r l. k MessageBox ("Get Poke Unsuccessful");; ~3 Q, d: ]3 ?4 u$ K. t4 d1 r8 f
return; , F3 Z" f% O% H' c! W% ? } 6 @6 \) E9 _, t ; m* \3 M' z8 B& E5 p; Z1 n/**************************传递数据给extend**************************************/* ?% v5 I$ V5 \ {2 M& W
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " N1 p# d0 q$ ^; ~; B " B& m/ D# @) k
valueStr = SysAllocString((WCHAR *) L"1232");) |6 G3 N* I, E! ]8 b
VariantInit(&pokeVariant[0]); . F1 A- i' P0 {" F6 ~" F5 K- D
pokeVariant[0].vt = VT_BSTR; . U7 V$ Z) \+ J. h3 ?) T9 v1 p pokeVariant[0].bstrVal = valueStr;/ Z) L8 N; d/ Z' e' b" t
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! `. y9 ]" }$ |1 T) f. m5 R VariantInit(&pokeVariant[1]); r G* ~0 V8 G pokeVariant[1].vt = VT_BSTR; ) w4 y; J( ]: v" ]3 o! H, | pokeVariant[1].bstrVal = itemStr;& J* K& b n! G" P7 y9 M! [
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topicStr = SysAllocString((WCHAR *) L"system"); : @2 [+ N, L5 A& U& O- r VariantInit(&pokeVariant[2]); - h! b2 `/ @) {/ k" X M; e pokeVariant[2].vt = VT_BSTR;' F$ j3 c1 A2 P/ G) W
pokeVariant[2].bstrVal = topicStr;6 N: g6 P- O% I
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// Set the DISPPARAMS structure that holds the variant. 5 ^' U5 F# P4 P _6 v ( U; w3 v9 G! v9 T0 b. X+ D3 n dp.rgvarg = pokeVariant;* t' _: F, j" O; M9 g
dp.cArgs = 3;6 K% |3 ?6 ^+ S6 \, I8 {( R8 ~
dp.rgdispidNamedArgs = NULL; 3 Z, o. M& |* J( D$ C) w6 y; E- J; n dp.cNamedArgs = 0;% y* q9 s+ f3 J$ {0 Y+ h
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// Call IDispatch::Invoke()% ?2 K3 e1 P* x* H h
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hr = m_pDisp->Invoke( " t7 l! C3 M1 |/ a( j pokeID, 9 e1 r: ^, y1 Z IID_NULL, $ S- v/ H7 z, g, k9 i) Z5 I: g1 ~ LOCALE_SYSTEM_DEFAULT, , e! d3 s& I6 }" K9 H8 p DISPATCH_METHOD, ) v U5 n/ |* f5 m% ]& m) i &dp, / x7 D0 o! D- z- d9 {2 L, ^ NULL,& U1 w' {- f/ i/ N# S8 Y
&ei, ' l! S& s+ G/ A5 j* x- [ &uiErr);* x0 C( b) m# Z4 y" o- ~) ?
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SysFreeString(topicStr); # }7 i2 q# T9 K1 E# `6 ^% q SysFreeString(itemStr);+ {" S) ]; V& G3 F& q8 v6 A0 ^
SysFreeString(valueStr); $ ~5 s1 G" f# d- q( O1 c3 j , j2 D) w8 d8 m- W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??? ; R# `1 f5 Z4 c5 b( a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????6 g2 P) o# z8 G; R8 y" v
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2.这是request的程序 / Y. @9 i( r" l9 \4 O) h% V6 B; N// Request a value from Extend 3 i1 m# R! I, ?* |+ k//- M4 X3 k. ?# i: }5 F, K9 A4 l
// Initialize the variant that will hold the BSTR. Set the variant's : h/ D% n, u% E1 Z9 K. G# J// type flag to indicate the fact that this variant holds a BSTR. Place the9 W. n# @$ B2 w: V+ i( j
// BSTR into the variant structure.! K) f* C, L3 \7 {: L# L, f
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); Y) x8 x9 i' s- I3 V8 x ' ?2 [2 V+ P0 p8 e" W. Y$ t: W. ]7 B( | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ y [, G3 X8 U, P" h7 c5 P VariantInit(&requestVariant[0]); * ?8 ]3 U7 P. w! Y2 d: j$ c+ y requestVariant[0].vt = VT_BSTR;6 y/ T6 \, t1 l2 E' o5 i$ p
requestVariant[0].bstrVal = itemStr;& b& P6 G* O4 h0 K- v
3 b. b6 U- x" v) Y- N topicStr = SysAllocString((WCHAR *) L"system"); - Z! I9 m/ [! { VariantInit(&requestVariant[1]); 4 w1 c: r$ @: c- v
requestVariant[1].vt = VT_BSTR; 4 q7 Y4 ]5 \$ J2 M k7 w5 F9 s% D requestVariant[1].bstrVal = topicStr; / k, p& Z; T9 w : `6 ~+ e. ^2 F// Set the DISPPARAMS structure that holds the variant.. N/ S' r) S! P* O
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dp2.rgvarg = requestVariant;3 Q: O) q9 {- S! n4 U; l0 J
dp2.cArgs = 2; # `8 K% T2 I) @7 |( Y4 ` dp2.rgdispidNamedArgs = NULL;! d( j) g6 @7 M( h1 u" s# S% g
dp2.cNamedArgs = 0;, P4 o1 g, ?* P3 q$ {& o. E X/ X