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:: V8 v5 }+ X: q. R; R c
Name = (WCHAR *) L"Poke"; ; K: V0 H2 R; h9 V( X2 _ + n& H6 N1 z& \/ k0 h( w1 }
hr = m_pDisp->GetIDsOfNames ( 3 N. f& _5 m; l* o2 O( s) h7 @ IID_NULL, // reserved" L- r* T) F0 i% h3 v
&Name, // Array of names to get IDs for ; _! {7 Q( w+ N$ V/ A9 O 1, // # of names in the array 9 h$ @- X1 r, }. G LOCALE_SYSTEM_DEFAULT, // System locale* i! R" d" g% P7 l0 {7 \$ Y
&pokeID); // Array of IDs to fill on output ; L! ^( _# G5 r' O: b7 [! n $ j, O: t' i: a r8 z5 N if (hr) 1 S4 @8 w5 ^) V# l {" M v# m" @, h8 {8 F8 v: D
MessageBox ("Get Poke Unsuccessful");+ n" ^- h" F! V* Z* O* N% p
return;+ u' K9 p$ `' S, a7 u
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/**************************传递数据给extend**************************************/ ' `" U9 R% h5 N4 j! ^: W pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); , s. m/ C( j! W" y! D / e) x" `1 [! W+ } v1 P
valueStr = SysAllocString((WCHAR *) L"1232"); % L# s/ [; e- Y1 [ M VariantInit(&pokeVariant[0]); , J( S" ^3 Z0 } A% V8 t pokeVariant[0].vt = VT_BSTR; , X5 _6 q2 w% L. n* ^ z4 p pokeVariant[0].bstrVal = valueStr; j0 w5 T, ^- V3 @$ Y6 z
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * s# P3 Y$ G" N VariantInit(&pokeVariant[1]); ) w8 W* [) P9 R3 n) `
pokeVariant[1].vt = VT_BSTR;) y8 ~9 B/ ~; Q0 p" t. f- [, p7 R+ P2 E
pokeVariant[1].bstrVal = itemStr; & V; z9 R4 p! ~7 K j0 u' `7 C3 b; M: ~* f& \
topicStr = SysAllocString((WCHAR *) L"system");) \' W4 Z/ \9 D: o2 E
VariantInit(&pokeVariant[2]); & L) t# w4 O6 _' U1 i+ Z% M pokeVariant[2].vt = VT_BSTR;! ^6 d0 h6 p. \7 P
pokeVariant[2].bstrVal = topicStr; 7 X5 r) r- F8 L3 F / |! t- q! ]. T1 a// Set the DISPPARAMS structure that holds the variant. & K# P' l& r- M+ a0 V/ K2 ~ {5 z8 ]
dp.rgvarg = pokeVariant;2 d( M* A3 L8 b; a( H( ?: v
dp.cArgs = 3;& r* H+ Q _: V/ _' ^( s5 d( }
dp.rgdispidNamedArgs = NULL;: L0 s+ {2 z0 s9 Q& ]
dp.cNamedArgs = 0; - c- l; W; w4 f, z+ A' V+ q' ?) A! U+ ? `3 h
// Call IDispatch::Invoke() * g C7 o" x! `' v1 f2 t ( U7 B% \# r" B; d) L8 @3 L hr = m_pDisp->Invoke( * w! B* _8 Z+ y4 g6 H- ]& | pokeID, . ]6 K7 n, g! F6 ?% Y: Y8 r IID_NULL, ) O$ s5 d+ A: }2 Q$ [. X LOCALE_SYSTEM_DEFAULT,* i w; _: k& Q
DISPATCH_METHOD,, e; g: I' \: F5 O2 ]5 ~
&dp,6 _: ^% Q4 w' v
NULL,' g7 e5 M2 A k$ }; @; U8 U- V7 {
&ei,3 x8 m# L0 D1 t& y
&uiErr); 3 [" R3 I1 K* y. B6 ` X% |; r8 u# Z% d( V$ S" w SysFreeString(topicStr); - }. R" I+ |& ?/ z8 `* {% \0 w7 o SysFreeString(itemStr);' \/ }3 ^3 n1 v
SysFreeString(valueStr); 8 E: V2 p- q6 k; t! y3 u% ~' Y& L0 n0 x! ~7 v6 C8 }" x
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??? - \3 X* G- r. m2 _7 [7 ~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???? 7 \% h' S) F3 L2 ]7 C9 n2 z. W/ ?" C
4 D) x& q3 t- W& ^. Z- v2.这是request的程序6 C; [, ~+ P& ?/ d: \- }, j
// Request a value from Extend 0 h _$ q& t% |0 z7 T' b' Z// , T' `. b/ C: V3 F// Initialize the variant that will hold the BSTR. Set the variant's 4 }5 u: i G7 q4 _2 Q8 s// type flag to indicate the fact that this variant holds a BSTR. Place the, o" n, \# j( `, A6 n" L2 k* e
// BSTR into the variant structure.0 `: U, e5 g, { n+ E& T
1 V& u& {) x4 i3 Q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ( }5 o# x; F5 q o; d) T$ S! @ 7 R, E4 g6 _* k8 v itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); k; l: ]: ^7 O2 ?% C F( y VariantInit(&requestVariant[0]); + a+ O) \* b+ e, y" [
requestVariant[0].vt = VT_BSTR;6 l9 Q/ H) C9 j
requestVariant[0].bstrVal = itemStr; * Z- _- [& ^1 [3 n$ W' Q: Q7 H( p( I$ d4 _2 o4 P. O
topicStr = SysAllocString((WCHAR *) L"system");2 q. C2 i. {& I# |3 P, E
VariantInit(&requestVariant[1]); 2 S, F) F: W; p# W
requestVariant[1].vt = VT_BSTR; + Q4 n6 X' {- N1 r4 t$ ^* c8 P requestVariant[1].bstrVal = topicStr; w4 p- s6 Y/ X! k* u
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// Set the DISPPARAMS structure that holds the variant.+ l7 N5 ^* x/ |2 x. w
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dp2.rgvarg = requestVariant; ! t& q1 q- [5 b. n6 @ dp2.cArgs = 2;9 a% B" m! e/ `4 i8 ^- E2 J3 s1 o
dp2.rgdispidNamedArgs = NULL; i$ `$ q A; C+ W u/ O
dp2.cNamedArgs = 0; ( k* `" O1 N* R. ^: L. R3 V# F# R; u
var.vt = VT_EMPTY;. U' Q7 f) N2 b$ P" S
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// Call IDispatch::Invoke() 3 d$ |0 P, z0 i/ C" ^/ l ) Z" L$ g$ S, \" i, M1 e hr = m_pDisp->Invoke( $ I. l3 H6 k( E6 { requestID, . ^; d% b4 E! D) ^" ~ IID_NULL," k* q2 \: a! D& t7 d2 A/ E( \) `% k* V
LOCALE_SYSTEM_DEFAULT, ! \1 N' ]2 M' o0 O% j1 o, N DISPATCH_METHOD, & V$ o- Z+ g3 n. {/ }+ f8 f7 J, d2 @ &dp2,* V4 g* n/ d! O5 U, e6 S, p
&var,: r& s9 l5 l4 t
&ei, ! ] p- `: g0 E. [' K &uiErr);: |$ l \. `7 T3 i/ y4 f
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SysFreeString(topicStr);4 q( n1 g' y8 r% c
SysFreeString(itemStr);" v4 A0 R5 w/ z$ E7 `8 L
请问该程序是获得extend里面的哪个值? & C7 J( |9 f! z# C: o& _' i' |如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????