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:/ w4 A; O& `( r( \" h0 V( z8 Q9 Q" ~
Name = (WCHAR *) L"Poke";6 m! d. m6 `; a( d
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hr = m_pDisp->GetIDsOfNames ( ( z+ _: [- _9 p$ o7 i1 T6 A. k IID_NULL, // reserved6 ^8 _# a# b: O
&Name, // Array of names to get IDs for ! _% \. l* w4 Z# K- Q. E 1, // # of names in the array / I6 n- L0 |" F% ` LOCALE_SYSTEM_DEFAULT, // System locale 8 ^! l* I% \ t# x &pokeID); // Array of IDs to fill on output ( \3 h( h1 u6 f) V* {8 | / g. t' _3 g1 A* h) V& W) U! @ if (hr)! G- D& A* p C0 S# s3 f
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MessageBox ("Get Poke Unsuccessful"); % l+ C% b" Q t) w4 g return;9 ]) k9 r/ P" p& l; x
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/**************************传递数据给extend**************************************/ 4 c; M1 w+ M+ j pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);- e( n9 |/ k& U
2 v/ z. k& B- o" _9 X# ?* w s valueStr = SysAllocString((WCHAR *) L"1232");4 i' p7 p T u& Y2 m7 O+ f
VariantInit(&pokeVariant[0]); 1 a) D( m& S( y4 J) ~+ J5 u pokeVariant[0].vt = VT_BSTR;+ l/ C0 j# C- v
pokeVariant[0].bstrVal = valueStr;, _. `8 V1 q8 n6 a* f6 Z0 @$ U" F
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 m$ A* I7 p2 K; _% X. f# r
VariantInit(&pokeVariant[1]); / b P. ~( _7 D4 s" J5 t' F, r
pokeVariant[1].vt = VT_BSTR;; d: o% {- ^9 U! M
pokeVariant[1].bstrVal = itemStr; E% O$ g, C' Q4 Z$ w" Q
+ S/ |# P; p/ g topicStr = SysAllocString((WCHAR *) L"system"); 6 l1 d0 P; V( f VariantInit(&pokeVariant[2]); " F' Q' ]% n \9 q$ `, g0 D
pokeVariant[2].vt = VT_BSTR; * i4 w0 K8 {- s9 B9 {/ V, i pokeVariant[2].bstrVal = topicStr; a* Y: I7 H& q2 r- }, m8 V+ n" y
// Set the DISPPARAMS structure that holds the variant. 5 K' ]8 Z4 B3 w# o4 [: v* g2 b 5 z9 P* l! r7 E8 \5 m+ l% Q4 U& @ dp.rgvarg = pokeVariant; ( J$ p: i% N, l$ S+ K- R \ dp.cArgs = 3;: p( O! n1 G6 D# N. b- U' D
dp.rgdispidNamedArgs = NULL;8 M8 f/ A8 `* N2 E+ J: @# z
dp.cNamedArgs = 0;2 c/ G) w: Y+ ?3 x9 {8 w
4 H! R- \) q2 K- I# k// Call IDispatch::Invoke() v( u k7 c( H
4 K/ G9 E* A! p- e& ^! W3 J hr = m_pDisp->Invoke(* x9 g$ H4 O4 h5 L
pokeID, 3 T( y) a( ^5 V7 u IID_NULL,, x0 e1 w+ J0 ~9 ?
LOCALE_SYSTEM_DEFAULT,# j; n. b. n6 U; `# L2 |) G, b
DISPATCH_METHOD, 0 ~! ]6 I! s3 x! W3 u$ F; u$ G &dp, 9 q1 {5 { [2 e" ?6 E. I- s1 T NULL,, v1 K$ o( A3 }% x2 ~4 ~
&ei,- S( @5 r8 k9 j1 z( _ p
&uiErr);1 c- Y- ^. o5 i: S
: x- G _/ U" S$ N. p9 S SysFreeString(topicStr); ; {3 W/ f9 D- j# @8 z SysFreeString(itemStr); 7 X! F$ T# l) g* y: m/ O3 ?- B SysFreeString(valueStr); W+ B% z' u* e
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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??? ( _! X( E6 A7 J# D1 m9 n1 p3 n( c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????) r5 @* ]- E) R" H) p- O) j& i7 e
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2.这是request的程序 7 ?% B; O- D! h0 I! q* ^// Request a value from Extend ) w- T2 _) K2 L% s. h, k3 z6 R//3 t- `1 l Y& K" O4 ]
// Initialize the variant that will hold the BSTR. Set the variant's 9 D8 n, L% |3 m) H0 ?8 Z// type flag to indicate the fact that this variant holds a BSTR. Place the3 I! ~0 h) o& z# s
// BSTR into the variant structure.$ A1 `4 B# V$ P- t" q$ @: k7 i* f4 C J
6 G7 M8 J' W6 q9 a# n% y: R requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 7 Q8 P M' `3 Z/ Z; s / c$ ^/ l. v- j3 n2 Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 ~! Y* F2 l9 v9 C* b
VariantInit(&requestVariant[0]); 7 k/ s |/ H4 [! C% @' }
requestVariant[0].vt = VT_BSTR; ! Y( C+ Z b( G requestVariant[0].bstrVal = itemStr;# ?' e+ L5 @4 d2 F/ b2 I
- t" T) Y7 u7 Y% o topicStr = SysAllocString((WCHAR *) L"system");. j5 c5 ]8 N" U; p" K
VariantInit(&requestVariant[1]); + f9 p( g$ Z. J3 `2 m$ y requestVariant[1].vt = VT_BSTR; " `/ Q- L3 J K& w requestVariant[1].bstrVal = topicStr; ) ?" V o, `- G & Z# }9 d' _$ A( Z6 E// Set the DISPPARAMS structure that holds the variant.5 [* ]7 F( F3 A. E `
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dp2.rgvarg = requestVariant;* J9 `. v1 b. ]% S
dp2.cArgs = 2; % s, k0 t5 R. j4 z! v$ _- Y$ L dp2.rgdispidNamedArgs = NULL;* o. i2 j5 p( m. K/ t/ O
dp2.cNamedArgs = 0; ! d2 a+ v6 D/ T# h/ q0 L. S5 }4 ?+ G. ~
var.vt = VT_EMPTY; & O: n. Q x H6 r( f0 ] * l/ ]3 D8 C' C8 L: x a// Call IDispatch::Invoke() E; l, z! m: Q7 n; h# N2 M9 H
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hr = m_pDisp->Invoke( 6 {8 r' e' t! _6 [: h- M requestID,! `" X/ K, ^, H8 [+ V B
IID_NULL, 1 P9 y. |! Y C* ?8 x LOCALE_SYSTEM_DEFAULT,2 C @+ |! C* O: Y4 {& F: s
DISPATCH_METHOD, 9 a! | M1 D B' X9 q2 Z0 {! ^ &dp2, # w( a3 H4 x! R$ ~3 x; D &var, 7 p2 ]4 A* y: r4 W, ], A% w &ei, + ]5 j# C K) s9 { &uiErr); & P' O; Y: R: l# {) E/ {9 i. S* h + g- F* J4 t1 Z" t" y7 m, T: u SysFreeString(topicStr);! }: W7 R/ ?- P' t: l0 ?7 V) V
SysFreeString(itemStr);/ g0 W/ @. \/ T {# @
请问该程序是获得extend里面的哪个值? 1 _2 @+ b% `% o+ ~/ I, l1 r. j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????