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: 6 N$ N4 x# {$ I7 A7 J) x- oName = (WCHAR *) L"Poke"; ) |4 Z# T# S6 \- q! Z ( Y# S6 [& p9 H) v9 M% L; P hr = m_pDisp->GetIDsOfNames ( & G' ^, R+ \9 \. K z6 |5 [ IID_NULL, // reserved 6 p) Y: _! J" ~/ O7 K &Name, // Array of names to get IDs for $ m+ J2 p' h2 a1 H 1, // # of names in the array 6 B) M! m; S u0 S, O4 x LOCALE_SYSTEM_DEFAULT, // System locale 9 J) z9 z; Z. c4 e &pokeID); // Array of IDs to fill on output3 I9 n4 J& O$ l) H
$ f' n( U- A: h6 \) E& u
if (hr) 9 ?' v8 _3 [* \2 y& R" D {+ J# `; L! w- H# J/ N
MessageBox ("Get Poke Unsuccessful"); $ t$ r! u+ X) P" T/ c) m) ?9 ?7 Q return; # i& L& i* W }7 X. O- u } 1 O4 [: ]' C; _2 A3 C6 E/ U$ ]) b0 o
/**************************传递数据给extend**************************************/3 ]( v& p- o% }7 V
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 X* a1 I* L; y2 D( ~ 1 l, _ h" l; [! E' ] valueStr = SysAllocString((WCHAR *) L"1232");$ {% a8 W! \5 d z" G$ E
VariantInit(&pokeVariant[0]); ' W' @- b# O2 ?8 U( s/ }2 H
pokeVariant[0].vt = VT_BSTR; 1 m2 T/ Z7 @7 |/ L, @1 J) R pokeVariant[0].bstrVal = valueStr; + I% ?$ p( r! e9 W1 X 7 i8 @- ?( ?. f+ q$ I* e5 n itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + ~- K4 Q+ m" ~. C VariantInit(&pokeVariant[1]); . V$ K, K4 r1 K1 U2 ^% t' U" q
pokeVariant[1].vt = VT_BSTR;4 ]! r2 v- N' D
pokeVariant[1].bstrVal = itemStr; ' h# G' u( b! q$ `. e: F 3 p6 i# q8 u& C# k) C topicStr = SysAllocString((WCHAR *) L"system"); # U3 b5 j) n6 u! v! t VariantInit(&pokeVariant[2]); 6 @- a5 a" B% c% T1 D
pokeVariant[2].vt = VT_BSTR; : R0 ^$ t9 r [ pokeVariant[2].bstrVal = topicStr; 9 I" f$ |2 }, w+ C, {4 E. a* \5 q1 l/ [/ F* C# \
// Set the DISPPARAMS structure that holds the variant. 0 z! J0 O, `1 Z! M, I$ v% U# k0 |. R( Y0 {; Z) F
dp.rgvarg = pokeVariant; 6 ~( e4 m& H; M8 | dp.cArgs = 3; ! b5 n! `8 D# u; {: X' J; y* m1 U dp.rgdispidNamedArgs = NULL; + x8 `+ m' [5 ~( ?+ S dp.cNamedArgs = 0;5 }! ?1 G6 I" | s9 B, `" @' h0 R
7 d' Y; i, t8 F4 f1 T// Call IDispatch::Invoke()- A! ~- y0 Z5 j* t" w$ @
1 H. }! V2 Y; F5 b hr = m_pDisp->Invoke( 6 R8 C) s6 s) x" } p1 D/ i pokeID, / R, Q' |" T9 B" {5 V2 f IID_NULL,, }* ^" O- p- b5 o6 Y9 G- i
LOCALE_SYSTEM_DEFAULT,3 p+ T% U- k4 x0 m/ C, ~( X
DISPATCH_METHOD,1 b6 J: m* B* w1 M- Y5 `
&dp, 4 Y5 r# |: t( G& T& S9 c NULL, ' n4 S2 ]' T2 [% @( Y &ei,+ R/ n# |" [9 w: i' N
&uiErr); 1 P, n6 D7 h- K7 i5 _( a1 ^# T2 g9 V3 ^, Z w1 k }. U% j
SysFreeString(topicStr); 8 ~0 y8 \$ b K/ Q! y& H SysFreeString(itemStr); # ^* B# y/ N3 O+ |2 R; N& k* i SysFreeString(valueStr); ) ]" M* c6 K3 i9 S9 Q7 O, [. Q* y. o" b1 T1 ~) N
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???8 V9 z8 g- s; i; b; @8 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????8 v0 e. @1 P! [- c2 d
) I7 q* J& X4 t( I5 c & `# Z8 `* }6 ?2.这是request的程序/ ]5 J& W9 M% ?! K& t. o: z, P
// Request a value from Extend# [) _% Y% n6 q& x. v
// + s9 R" I1 T; l/ ~( ~+ z8 b// Initialize the variant that will hold the BSTR. Set the variant's 6 C0 z8 u0 s% L. C, V6 J// type flag to indicate the fact that this variant holds a BSTR. Place the ( H0 I; N) v7 Y: ?// BSTR into the variant structure. 9 j7 @7 [: U1 `6 ?/ g 7 `- |9 J7 E" h! P5 y requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 n) p1 I0 k" f1 X* O6 z" e
; `' ~: o' o9 i9 k1 I3 i/ W itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' U. E% W6 f: `$ O" ~* J
VariantInit(&requestVariant[0]); D' w' k8 N% j* y requestVariant[0].vt = VT_BSTR;: B, O8 M" y8 Z+ m( j6 F
requestVariant[0].bstrVal = itemStr; ' T7 h* t+ F% C* O/ A5 Y: ]& E) F3 r7 P& m
topicStr = SysAllocString((WCHAR *) L"system"); , M% s. D6 S1 h# E5 ]9 Z$ F VariantInit(&requestVariant[1]); , L- D( M" I& E( E# G
requestVariant[1].vt = VT_BSTR; , T: ^1 I7 X& F- ^6 W9 T requestVariant[1].bstrVal = topicStr;1 E' U- a# H( d1 ~
0 ~/ h2 f6 q/ r9 f// Set the DISPPARAMS structure that holds the variant.1 B( c2 n9 G$ T$ L% M ?' ^9 u
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dp2.rgvarg = requestVariant;# [3 m( h& l% y+ B$ g0 e6 `
dp2.cArgs = 2;, b5 X3 h! E% n
dp2.rgdispidNamedArgs = NULL;/ @7 P4 p9 \8 C
dp2.cNamedArgs = 0;" u! I$ o1 L; x1 L8 j* B
; C5 V) K8 x2 @, d. O$ G2 t+ }4 j var.vt = VT_EMPTY; / ~% w8 ]+ M) f) M3 c4 y' _' C* U% d `2 k5 m; P- z, v/ V
// Call IDispatch::Invoke() V" s5 O6 j( d/ ^) T7 @ 1 T% O) J, ^0 x# c hr = m_pDisp->Invoke( ) d7 Y- U2 D+ Q4 G& i# Q$ |7 k- J requestID,0 m' `2 ]! [0 p* g) x- w
IID_NULL, H. i! m/ P9 x, \% @0 \
LOCALE_SYSTEM_DEFAULT,7 u8 X8 \6 E8 N9 v$ a
DISPATCH_METHOD, 4 v2 Z5 Z0 m. D &dp2, : B R: t7 u, f# q# N &var,$ m( q9 e3 \. R6 Z
&ei, - O" J8 P: @) O4 x &uiErr);9 Y6 y( G) o. A1 }
6 ~1 v& l5 b7 v; @& j7 { q5 ^8 t SysFreeString(topicStr); 7 n6 S! \9 Z. c6 V9 X% w SysFreeString(itemStr);) o4 D% ]5 m* L& v3 S
请问该程序是获得extend里面的哪个值? * z; i1 Y+ D2 r" w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????