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: a# t1 d6 a8 X) J& Q5 Y6 c; Y
Name = (WCHAR *) L"Poke"; ( N8 a% C1 Y# P9 i # ~& G- J4 X5 b2 j; }8 L% I3 {9 W$ { hr = m_pDisp->GetIDsOfNames (' g! ^7 q! u8 E% w4 c) K5 R! M
IID_NULL, // reserved8 M) u" O/ v' K
&Name, // Array of names to get IDs for7 C: r+ W+ J: G! \
1, // # of names in the array ! `" E9 a: l1 g LOCALE_SYSTEM_DEFAULT, // System locale & q( n! L7 ^+ x: e1 L( K: [+ ~0 \ &pokeID); // Array of IDs to fill on output+ Z, j) s2 D3 b6 O, ]1 w$ {4 f
' m* c2 T7 I* i, ~% L N if (hr)1 f6 O; o5 t" g( f# v
{ 3 _6 d$ I% R5 M/ L! _* V MessageBox ("Get Poke Unsuccessful"); $ }: n V% a! r5 f# T! l" z/ O5 G return; ! f. m0 c& F* N }& T* A; J! p% h
6 h7 {6 U" [1 w1 s/**************************传递数据给extend**************************************/; V: M" j% k+ ]8 k
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : o _5 _7 h' `- t3 m6 k2 }2 ^. }. } ^: u3 y: o+ b3 O4 x3 j valueStr = SysAllocString((WCHAR *) L"1232");1 R, L. I% K- u8 S
VariantInit(&pokeVariant[0]); ) X, n; y+ B& V. g5 ~
pokeVariant[0].vt = VT_BSTR;/ ~4 z: ]6 K& y) P
pokeVariant[0].bstrVal = valueStr;) x% k) l) B3 ^
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ D0 o& T9 `% P$ B+ M
VariantInit(&pokeVariant[1]); " n1 N/ k) [9 ]
pokeVariant[1].vt = VT_BSTR;0 ^. \8 a/ v. C
pokeVariant[1].bstrVal = itemStr; # G. B% a# \1 u( k! g7 F8 Z+ H+ O! x+ w* m8 ?+ @: d$ p. \. ~
topicStr = SysAllocString((WCHAR *) L"system");' Q* X8 `) M# t% }) S
VariantInit(&pokeVariant[2]); 1 z7 p3 B' A' E1 g! D( M
pokeVariant[2].vt = VT_BSTR; ; J6 b# x8 ?# i5 z: w. ]/ _ pokeVariant[2].bstrVal = topicStr; w3 @6 E. X7 A" z0 G' K4 |( H
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// Set the DISPPARAMS structure that holds the variant. / ~1 e+ T% I1 o. a7 U 4 W |" r; ? T6 B- H8 [; ~ dp.rgvarg = pokeVariant;& x3 S4 A' S* V& _9 r; O! }
dp.cArgs = 3; 3 u4 |/ r0 L* h! T3 y) G dp.rgdispidNamedArgs = NULL; / s5 c! S5 N) K& s- ^- U dp.cNamedArgs = 0;0 h# z) f+ o# ]2 B" z
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// Call IDispatch::Invoke()7 L$ C; M6 O5 H; ~. ^. M. s
( h# F2 e5 g$ j: K hr = m_pDisp->Invoke(1 r9 ?' w! J) }" N# V
pokeID,2 Z1 m* K( y H3 W" S. n
IID_NULL, : p2 m/ D9 @3 L1 A% ? e LOCALE_SYSTEM_DEFAULT, + Q3 C# R0 C$ @: L! `7 x- t0 X" f DISPATCH_METHOD,- u8 ]8 A4 q+ Q* O- ]* T) R
&dp, * c0 m% q/ s2 _; w1 k4 _ NULL, 6 i: I6 L0 S4 S3 \$ f! i &ei,% ?: x' X3 V, n1 c
&uiErr); m. {6 S/ J7 e0 g) o7 K8 [$ N
p- v' i( X$ _+ k/ f! @+ { SysFreeString(topicStr); 6 z1 {* I# _0 D1 {3 D/ B; E: I( R SysFreeString(itemStr);+ L+ K1 G- ~7 o; l' N4 s
SysFreeString(valueStr); # _! A/ k5 }* n* v. p% j9 A9 f & c# O# F7 V# O+ s: v5 K* p) L- 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???5 B2 E1 l; S% w+ ~8 I
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????- V( `5 k. ]1 b& t. A! X
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2.这是request的程序 8 Z' x" Q. [$ j. d2 e7 [& F// Request a value from Extend 7 O( X2 {' A3 k' f O/ ^//# ]5 i! J* o4 c" k2 g- u
// Initialize the variant that will hold the BSTR. Set the variant's3 R0 K" H6 R2 U* v" G) m7 k; k9 d& S) A
// type flag to indicate the fact that this variant holds a BSTR. Place the! U6 F4 @7 t4 F! X
// BSTR into the variant structure.: D6 t! h+ V( J+ h2 Q0 z% g
" N* N( }6 ~+ W3 \; J0 p; G requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ v/ d W8 v# V' f3 V: q2 y5 l4 K
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % O) S4 q" e6 L- [ VariantInit(&requestVariant[0]); B- ^! W( ~. _0 W' `* Q$ Q. k
requestVariant[0].vt = VT_BSTR; O) U9 \2 C7 e
requestVariant[0].bstrVal = itemStr; 8 V) o% U" ?: U$ k# Q x6 @$ t" b1 k8 ]6 f( I8 A$ D
topicStr = SysAllocString((WCHAR *) L"system");' R. h3 }% o: z
VariantInit(&requestVariant[1]); " F. h3 G5 t1 J) z u! b5 t
requestVariant[1].vt = VT_BSTR;) {# c' B, H4 ^$ q0 E5 F
requestVariant[1].bstrVal = topicStr;( d8 u6 M1 ]' P5 Y
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// Set the DISPPARAMS structure that holds the variant.) U% H1 n3 M( t& t+ C0 f/ p; F
0 J! z4 w" j' ]$ `! J dp2.rgvarg = requestVariant;. A, `+ R) p6 d& \* e" ?
dp2.cArgs = 2; . |8 T3 w6 ~/ @' H dp2.rgdispidNamedArgs = NULL; 9 [; X2 v( d: b! e dp2.cNamedArgs = 0; $ S6 I: V O3 d# V) I. V' u: S 9 ]! b% u' F5 T/ W1 n. i( Q' K var.vt = VT_EMPTY; & d P; \9 h+ v( i3 r+ e& m G j7 S `4 z7 H: m$ F" b; s @9 v3 _* Y
// Call IDispatch::Invoke() - p6 e+ ~9 O8 E5 M5 W. V. x+ f% E/ e: D h9 u+ N
hr = m_pDisp->Invoke( : f4 K; K( ~1 H$ z3 _& G requestID,# J9 m6 Y! E( p. Y4 b: z
IID_NULL,' Q* O4 Z9 z. m( R p
LOCALE_SYSTEM_DEFAULT, + s9 G2 b: t1 Z" `5 l DISPATCH_METHOD, l Z, r* Y5 F! K7 ~ &dp2,( @- T0 X/ a/ H; T
&var,# W/ o8 t7 v9 T* h, s8 `
&ei, ! L. n7 ?; O3 O. Z4 y) B &uiErr); ! O" u" F/ {, A2 s3 i5 V, d$ n0 Y E! p
SysFreeString(topicStr); & k; x D2 q- G+ f4 ^. r SysFreeString(itemStr);* x+ O1 l* G5 ?( ^ a6 ~
请问该程序是获得extend里面的哪个值?5 t0 R% @5 M, L" V' g2 i! ]% a
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????