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: N4 r& V3 j" R x( ~2 x9 k
Name = (WCHAR *) L"Poke";6 N8 F# L) a$ I7 y
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hr = m_pDisp->GetIDsOfNames ( ~& p0 L$ W1 [5 J9 g IID_NULL, // reserved 7 H; f- p' t' x+ {' m &Name, // Array of names to get IDs for( L# [6 t1 X' i" g
1, // # of names in the array" I6 N/ K* t# W( i# J: U
LOCALE_SYSTEM_DEFAULT, // System locale $ p" {6 i, s9 e7 F- l &pokeID); // Array of IDs to fill on output4 V0 G4 u# K) X
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if (hr) 4 B: X0 O; H/ l& @ { 9 |/ [! x* j4 r5 \/ Z MessageBox ("Get Poke Unsuccessful"); , }- g5 B' f$ v+ I$ }- U return;; A: `7 i G4 P- C. w3 G
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, X+ ?8 P. e# s4 J8 B0 ~/**************************传递数据给extend**************************************/; |2 F$ S9 w) v- m, F! M
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ! o4 g3 \+ ^1 h5 g) u1 [0 ?, V , B8 M0 W; N- _( V8 u3 @
valueStr = SysAllocString((WCHAR *) L"1232");; @5 n+ v/ [3 ?+ Y$ O ^
VariantInit(&pokeVariant[0]); 5 Z/ }7 _9 M0 h) z, f8 D
pokeVariant[0].vt = VT_BSTR;; O- S6 z. K3 w/ T* W
pokeVariant[0].bstrVal = valueStr;( c) D+ e% h5 |* _$ d( ~8 O! ~
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ d5 b# C3 L1 F9 L2 f }0 U VariantInit(&pokeVariant[1]); # o- z) r- T6 w9 Z* F- q3 g7 U: u pokeVariant[1].vt = VT_BSTR;# Q9 w8 T0 Y+ s( s0 T8 ~. a
pokeVariant[1].bstrVal = itemStr;+ n7 k3 `( x4 C. `/ u* j7 ]' H
: ^3 ^7 y I# J7 k& y0 {# b& H" _ topicStr = SysAllocString((WCHAR *) L"system");' U" ^( S3 o! L
VariantInit(&pokeVariant[2]); 6 `% O3 Y" l5 @9 i* ]2 O! y: s
pokeVariant[2].vt = VT_BSTR; 4 i8 R8 `# F) z8 m5 A, r, D" a pokeVariant[2].bstrVal = topicStr;4 M7 H! [0 K7 G- i8 H( I+ I
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// Set the DISPPARAMS structure that holds the variant.7 d& ]& V" f, }! r2 c$ S* K
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dp.rgvarg = pokeVariant; ; t" `: a8 C/ M* t0 A2 H A dp.cArgs = 3;: q, _6 |; C% u. X k: @- H
dp.rgdispidNamedArgs = NULL;5 M/ v; v) i5 e3 O) Q+ P
dp.cNamedArgs = 0; 2 t7 K0 w. E/ {. `1 T+ L6 |$ c5 t' l Y' T M
// Call IDispatch::Invoke()9 H, Q8 Q/ O, g }; ?
; H3 i% k& B9 q n hr = m_pDisp->Invoke( 6 S R9 U9 ]. H9 a: I9 R: B pokeID, 4 t" ]9 ^& R/ L) M, t" M IID_NULL,! b$ c, p1 C* q, g0 F/ S
LOCALE_SYSTEM_DEFAULT, ) r# r6 C3 P; ?4 o! M DISPATCH_METHOD, : U7 \# j2 Z+ o- x &dp, Q, I# U) \7 g
NULL, 4 `, t1 h6 c- C$ m" _ &ei,( V$ D8 W+ F! u' e( b5 s1 z
&uiErr); ) v5 W9 L% [- G$ H) z$ d6 c" [/ s$ s$ v4 R
SysFreeString(topicStr); - r" T' T, g+ P7 d; h$ E) d- d0 \ SysFreeString(itemStr); 4 R+ c* d/ g7 j' { SysFreeString(valueStr); * P0 F1 I4 x) x0 g+ R 9 j2 b C2 r- G7 e) Z9 Q3 V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???6 Y' c2 w" N2 Z
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???? m$ U: q* P3 H* P. d2 R# U 8 E; v; z2 R1 y) @7 K2 j; e6 _5 D0 ^" ?' }* W* J
2.这是request的程序% Z/ G7 e0 V. F4 e0 L, R4 A
// Request a value from Extend ! |/ S5 \6 n" V$ b- j/ y/ N// ! F& n7 e1 E% C6 q, {" q9 h( x// Initialize the variant that will hold the BSTR. Set the variant's* J$ j* U* M" @. I6 j8 t+ q0 {+ D
// type flag to indicate the fact that this variant holds a BSTR. Place the$ f3 J/ ?' _& M% I) e
// BSTR into the variant structure.8 V+ A2 M$ B7 n6 q% D
: A4 p, t1 F/ h' t requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ J3 D t2 Z' c. I: c
8 X; A3 K. ]( ?: n itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 O! i; Q2 n# S- R' h' W
VariantInit(&requestVariant[0]); # a- w2 H! y% P0 o. c% W, s requestVariant[0].vt = VT_BSTR; . W& a3 \2 G& t3 L, [; [+ c9 d- }2 A requestVariant[0].bstrVal = itemStr; 4 v3 w h+ R/ K l* C % M0 N) B7 p) w8 y, l0 J! a U topicStr = SysAllocString((WCHAR *) L"system");+ D/ l. o$ L' s( S
VariantInit(&requestVariant[1]); 4 F8 U6 Z; ^9 r3 b% N3 \! k
requestVariant[1].vt = VT_BSTR; 9 ~- K- K3 b$ A+ a/ k requestVariant[1].bstrVal = topicStr;' k& ]. N6 s6 M6 e
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// Set the DISPPARAMS structure that holds the variant.- b6 L/ W6 C R+ ?4 j" o# ^; w' _
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dp2.rgvarg = requestVariant; 1 T7 s1 ?% M$ g0 L+ n2 }9 C3 S1 o dp2.cArgs = 2;, Q! T7 | h d; k
dp2.rgdispidNamedArgs = NULL; 1 q' V) ^. Z' c: M+ ?: f dp2.cNamedArgs = 0;, K5 a! X$ _6 O. i7 d: f
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var.vt = VT_EMPTY;! ~4 O& p, E1 S9 }; O; g# l- c( Z/ {
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// Call IDispatch::Invoke() s+ r3 T. k# d; {# u( J* u5 J7 Z 5 l. I1 }7 t5 v hr = m_pDisp->Invoke( 2 L( S$ Y9 T' @, `2 ^: r D, Q! f requestID, " X3 @" Q9 Z6 j$ G, S0 o4 J* X: L( w6 y IID_NULL, 0 B7 B$ B$ ^7 B6 M, E+ o& { LOCALE_SYSTEM_DEFAULT,/ i4 H8 h/ j+ Q1 C7 m
DISPATCH_METHOD,7 i9 [- k* i" A p" j6 v
&dp2, 1 D* b" H7 A1 e5 B. ~ &var, ( r4 Y3 ^% y% G. W &ei,+ a. S4 Y; ^2 O, i; ]% H
&uiErr);& t" |8 Z/ U+ k. K
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SysFreeString(topicStr); 4 b( X- F8 I: I4 G* `6 h S SysFreeString(itemStr); $ I$ `+ _2 q3 h6 ]- F" ]请问该程序是获得extend里面的哪个值?3 D6 I6 u: M0 o1 U; a+ e
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????