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:. H, M$ O, N) w" |5 `2 M
Name = (WCHAR *) L"Poke"; ) P; e+ ?1 T* ?+ b ! Y$ v" H$ W1 o7 O6 f, B* ~: @
hr = m_pDisp->GetIDsOfNames ( 3 w$ d, |- m) T' c4 O+ X IID_NULL, // reserved2 Q) l" }" U4 p1 z, t8 d2 h9 m$ r
&Name, // Array of names to get IDs for. `# e0 n+ o# O5 v
1, // # of names in the array d. u& t" u. k; S LOCALE_SYSTEM_DEFAULT, // System locale / T+ @: c+ x/ D$ F &pokeID); // Array of IDs to fill on output ; l5 ~; a3 p4 K" ^ ! z0 B K- Z: w) G2 Q, \* ^ if (hr)$ A* R5 [# I. O1 E
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MessageBox ("Get Poke Unsuccessful"); ( T3 S/ @- K- N1 Q: ^* T- L; y6 Q! S return; J* j" J0 y3 L/ Q } . y8 S6 O2 J& b: C5 I$ y9 L' M, G# T* A1 \6 h h$ d1 u& y
/**************************传递数据给extend**************************************/ d3 v5 w/ q `+ p: _$ K pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ; U/ `$ g( t" _1 p' t I/ ]# T: y ) c. c/ b1 g' r
valueStr = SysAllocString((WCHAR *) L"1232");5 N) }( `& C. \+ J# D7 b
VariantInit(&pokeVariant[0]); ) j, l+ p" H# T" _+ A
pokeVariant[0].vt = VT_BSTR;+ K/ A" d2 K9 v: @" X# F
pokeVariant[0].bstrVal = valueStr;8 @' N: d- k2 w
- w, P- D2 R3 T, t' l7 o4 J9 p# b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 M5 o* V3 f4 e: V0 v5 L8 w
VariantInit(&pokeVariant[1]); " l& E! f* a% r! f pokeVariant[1].vt = VT_BSTR; 6 o" p/ s' ]; F pokeVariant[1].bstrVal = itemStr; 9 e. }/ S1 e" `# ?" h n) I+ u; @( @- s( H8 b( R
topicStr = SysAllocString((WCHAR *) L"system");; c f+ R/ T; G
VariantInit(&pokeVariant[2]); 5 P/ p" U- J3 l k: @) Y4 D* O
pokeVariant[2].vt = VT_BSTR; " I3 | [* q+ D" n* ? pokeVariant[2].bstrVal = topicStr; : P& Q- E7 W) M( x" A [( v) B0 m) U; M! `% K0 r: T1 r6 _5 D% m
// Set the DISPPARAMS structure that holds the variant.) I# D1 Q d7 f1 \% ~2 G
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dp.rgvarg = pokeVariant;# f' a* [0 ]$ a$ w: a; r
dp.cArgs = 3; 4 [" R+ ~' [- _: i t dp.rgdispidNamedArgs = NULL; T5 W( y9 [& [( w2 f
dp.cNamedArgs = 0; ; C3 B6 Q7 r7 Y5 z / y8 [4 h% U# I/ j# i& [// Call IDispatch::Invoke() H0 B8 B2 {( c* b/ M
9 I: K7 q5 b& L) b2 Z4 j( V( d hr = m_pDisp->Invoke( " X( s- L7 {( E! _5 ] pokeID,* ~, J; e2 l8 f1 K. V ^
IID_NULL, 4 @9 M# O" E! t( K- w2 X LOCALE_SYSTEM_DEFAULT, 2 u' d! ~/ n; R7 S DISPATCH_METHOD,5 g, j( F4 u: D: E* `/ `1 f
&dp,2 R8 ~# q2 h' g" l6 c" {
NULL,1 j' ]% i: Q* X0 C r6 ]9 P% o R+ v
&ei, 4 O- @3 r$ W9 I4 \/ P7 D &uiErr); # M i+ { }! p 4 ]+ a9 `' d( E0 x SysFreeString(topicStr); ^3 v" h9 s; `0 H( K6 L2 Y4 a SysFreeString(itemStr); ! e$ ?% k% L) O: b" c$ U7 o1 a SysFreeString(valueStr); $ @0 u4 [- q# e2 J# ^7 R) ` $ Z. _( g3 e! K( q6 `( R+ G5 u+ m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??? l7 \/ Z6 ^# K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????1 D1 t4 I E& S7 i
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0 y8 i: `5 Q b1 B! x2.这是request的程序6 B4 y: ~2 \$ U" O1 L
// Request a value from Extend) u3 a6 z, }5 V, L2 t
// 4 B( g# o. o. o3 F& Z) W( v8 U// Initialize the variant that will hold the BSTR. Set the variant's# q; ?, c* W* M! f. S9 n
// type flag to indicate the fact that this variant holds a BSTR. Place the 9 @6 R) M& f: ]5 ~1 J4 ^// BSTR into the variant structure.& @# u1 W; A. z! E% X
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); + A5 n2 m- [% n# q7 N # @/ R5 o* X/ R9 B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ E' K3 p% m3 a' W& \0 a VariantInit(&requestVariant[0]); , p' c6 U V# L) S( u. S! ]& B requestVariant[0].vt = VT_BSTR; 8 B5 ?3 h0 e0 k( U$ B8 D6 Z requestVariant[0].bstrVal = itemStr;. t/ b' S- t1 G( ^# C% A& E2 y! U
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topicStr = SysAllocString((WCHAR *) L"system");2 o' E/ p) p6 A" ~ L
VariantInit(&requestVariant[1]); & f1 O0 O8 B8 |9 r
requestVariant[1].vt = VT_BSTR; / ^' a8 S/ h* F requestVariant[1].bstrVal = topicStr;% m+ i) Z+ B- L
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// Set the DISPPARAMS structure that holds the variant., c8 O; O6 q# U4 ^! e
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dp2.rgvarg = requestVariant;# D0 B, P, }; u7 X
dp2.cArgs = 2; , x3 J9 h {. S3 q dp2.rgdispidNamedArgs = NULL;6 W' ^6 w; E8 t& c3 C1 S. n8 l
dp2.cNamedArgs = 0;) r) v! T& W, I! }6 t