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: # p v1 }3 B$ O) D0 V; f) ?2 wName = (WCHAR *) L"Poke";& `. g* v H2 a, R& n+ c
1 o" Q# g5 |" I( h. e x9 I6 U hr = m_pDisp->GetIDsOfNames (; a. u, k6 n7 N! f& W+ g. u
IID_NULL, // reserved2 ~7 _' r! W8 C- X) o8 z; S9 X1 A
&Name, // Array of names to get IDs for # O/ J. \4 m+ F1 ]! n6 L 1, // # of names in the array1 U4 U4 H4 Y, z: g! [
LOCALE_SYSTEM_DEFAULT, // System locale 3 a- c+ Z& B3 P, @ [6 I &pokeID); // Array of IDs to fill on output% d* K6 g+ q' A
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if (hr) 6 f3 t, L- M0 f/ S8 m+ I {( Q& M! l" \- u3 W7 B5 `$ |- e
MessageBox ("Get Poke Unsuccessful"); ) {8 H/ F& v$ ~! V/ X& t1 I+ a return;) F0 f1 M3 o! W. Z ~: b5 U
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3 T1 p* j8 ]& _$ p/**************************传递数据给extend**************************************/ $ ]3 Y# y9 w: W. ]/ o/ O. e pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# t) i' F) _* H! }' ~2 N2 }- |6 T- U
4 ~- y5 ?* w6 v# \, J0 j( O1 ]) K valueStr = SysAllocString((WCHAR *) L"1232");. e q% M7 c6 b% m' H. }/ v
VariantInit(&pokeVariant[0]); ! A1 k1 `$ I- z" s7 O2 D pokeVariant[0].vt = VT_BSTR; |2 w; J% H, q6 X M pokeVariant[0].bstrVal = valueStr; 6 k: z, X1 D3 O& f6 V9 A) E" ]# {' z8 X! _3 M& ^% W `. b5 X: p
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" S7 j/ }! J, u6 @ z, ?7 P
VariantInit(&pokeVariant[1]); ; n8 j" O* O5 E7 X3 Y5 k ^ |
pokeVariant[1].vt = VT_BSTR;$ l8 f( E' q# y: d# g0 y) g* C& }
pokeVariant[1].bstrVal = itemStr; 7 Q d; C# A& W3 `8 V2 S T" c + N- ~' X" m; C' ~" d topicStr = SysAllocString((WCHAR *) L"system");" U8 ~( X. \: A8 ]5 @
VariantInit(&pokeVariant[2]); 3 \) T# y) z3 `3 \ pokeVariant[2].vt = VT_BSTR; ; Z/ X$ }2 ~5 @5 s# m pokeVariant[2].bstrVal = topicStr;3 S* N7 X( r6 P! j; s
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// Set the DISPPARAMS structure that holds the variant.! K; @3 g; a4 b4 L; i
; Y' B" w9 R. W/ g& w6 D$ A dp.rgvarg = pokeVariant; 1 t9 R. ~- u: e! `& b0 J dp.cArgs = 3;9 s$ _: q5 ^( V, X( [# h
dp.rgdispidNamedArgs = NULL; 8 V& `6 F2 L: S dp.cNamedArgs = 0; ) M" Q2 j( L- ^5 t7 S! ^( r # T. S9 s. k/ a2 v. y! i// Call IDispatch::Invoke()5 N: F/ \4 C( e7 m& E) ~2 E) a
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hr = m_pDisp->Invoke( ( s0 r1 s. F1 i. X% g4 f& q1 [ pokeID,1 r i: Z% H7 N
IID_NULL, 7 }! X% N7 }. M LOCALE_SYSTEM_DEFAULT, - J3 O) x# n( G2 E8 G) r6 _ DISPATCH_METHOD, & h1 r8 K+ N! T5 R7 S6 r &dp,, ~% l: D$ |! X: _
NULL,% h" S O- i4 h3 u% t0 B
&ei, 0 W9 o- B' i$ A/ ]& w/ ? &uiErr);3 S9 ~$ X1 ~2 r
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SysFreeString(topicStr);+ f' p5 J) C2 @" U
SysFreeString(itemStr);; ]% F- _7 P' ?0 U8 [, ?
SysFreeString(valueStr); 3 L$ `/ e; _% j6 O5 Z- {& ~) ]5 n3 \, b( X+ R
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???& ^4 a4 |4 U" g' N# c9 [: w7 ^
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???? $ Q0 |( J0 G0 ~& T) Z% V: ~2 G7 U& y2 w' ^2 I
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2.这是request的程序) a& A- c% H( L) x0 a! ?' g' z+ P
// Request a value from Extend- T3 Q j" @/ `- x5 r6 j
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// Initialize the variant that will hold the BSTR. Set the variant's , i* N; [, k' q3 o# Q! X9 k/ i// type flag to indicate the fact that this variant holds a BSTR. Place the ) z; n8 c& ~* a9 K8 Q% E: V) |& {// BSTR into the variant structure.: Z9 p; }( G7 x& J, B
9 ]5 X, b- u4 }- ] requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);3 D m, H7 K6 }0 y5 i
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : y: B4 j5 ?% \' ]7 _4 `0 f- D: U VariantInit(&requestVariant[0]); $ t. A: w2 ~4 ?7 f! Y' D8 D. @2 | requestVariant[0].vt = VT_BSTR; , [& H, W8 x8 A3 q% t! K2 k* B requestVariant[0].bstrVal = itemStr;) |! L$ B2 ^8 T( l, P n" ^) W0 l, X
/ w- B. ^$ D3 u u) D8 j$ N5 W topicStr = SysAllocString((WCHAR *) L"system");7 t0 F* Z6 L. W6 C# t
VariantInit(&requestVariant[1]); 8 [7 N+ a4 M( U# m2 F+ X; i) [ requestVariant[1].vt = VT_BSTR;& |- T6 z) A7 X( D
requestVariant[1].bstrVal = topicStr; $ z0 }& U2 l7 z0 l. v5 x7 h( r$ b
// Set the DISPPARAMS structure that holds the variant." o3 F. j& b J) O2 l2 [
; |+ Q0 D* {+ V" z0 e" M/ V$ h2 O0 d# K dp2.rgvarg = requestVariant;1 s3 Z, _" K" _! W; t) s
dp2.cArgs = 2;: y8 S3 \4 }; v6 R
dp2.rgdispidNamedArgs = NULL; P9 P2 K% G r5 w& }
dp2.cNamedArgs = 0; 6 X N1 x$ M2 s' h6 M3 }9 y: B6 F1 H * {- M, l7 A$ E; g2 v( U" h var.vt = VT_EMPTY;* C9 P$ c+ W6 L4 V0 h
1 w4 M) a, l$ G) m7 j& ]$ M* Z* A! I// Call IDispatch::Invoke() ' S% @6 e4 G% g9 V ! X/ i; {' ~ @ hr = m_pDisp->Invoke( 2 `6 G0 W! y/ d0 ^# e9 w requestID,. Z& `; i& a# o' E" v
IID_NULL,1 w' m+ |1 W1 P9 I3 E; m
LOCALE_SYSTEM_DEFAULT, , g& K$ z F5 D- ]: N DISPATCH_METHOD,& t$ @& k( k' w+ F& j7 h
&dp2,0 F6 V4 Z1 f' l: e( B& E" v6 `
&var,* N6 Q- |3 V; A4 t
&ei,, C8 m$ `# {& E' I
&uiErr); ( w- x1 o% _2 K. z/ U: d" `) y# p1 H( M9 ]* `2 v( V) o. ]
SysFreeString(topicStr); / G/ s* V& P" k! w* x SysFreeString(itemStr); 9 ^5 [8 }$ W1 F; J请问该程序是获得extend里面的哪个值?! [0 U, N' R4 M, Z' x, \
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????