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:4 H7 f7 S$ c& k
Name = (WCHAR *) L"Poke"; & g( B& R; b% u! n - H; Y7 v& E* l+ `9 E( H1 ~1 V
hr = m_pDisp->GetIDsOfNames (% }4 g% H) O! f9 X- a1 {. H
IID_NULL, // reserved 8 f6 o1 j2 t6 |9 O+ y( M& P4 X6 o0 e2 S &Name, // Array of names to get IDs for # w$ S5 H* ]) F9 O6 }/ v% f4 } 1, // # of names in the array( T! T$ {& }8 O5 M
LOCALE_SYSTEM_DEFAULT, // System locale 6 ~" ^) H8 C4 b! v! k6 t8 [ &pokeID); // Array of IDs to fill on output1 \9 k( X2 d9 {/ q* f
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if (hr) 6 \# N2 n$ H. w4 v) F' Q) a {4 S& ]* _7 P! U
MessageBox ("Get Poke Unsuccessful");; D& i; {% |/ j0 R. V
return;+ |' ^8 d" k# d2 k6 W- b' k
} ; E$ C# Q: M4 h& J7 c $ b( @7 D4 t/ l( r4 K/**************************传递数据给extend**************************************/ ; M2 b9 y+ f: G2 n" t( v0 D pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 r) e. c, E4 O3 G, i
& K1 b5 r5 Q) c2 A% I+ E% D) S valueStr = SysAllocString((WCHAR *) L"1232"); 8 \! u* K# X7 _% \& }, J0 q" ] VariantInit(&pokeVariant[0]); 5 E( J, j. R" X pokeVariant[0].vt = VT_BSTR; ; {- t) O% p# P+ I# r pokeVariant[0].bstrVal = valueStr;" _6 N8 a9 w* P, v; g. s
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); B# F0 p. R1 k6 M& t VariantInit(&pokeVariant[1]); - N+ X" d, L. W t
pokeVariant[1].vt = VT_BSTR;/ u* L( {9 ?" b- t9 L
pokeVariant[1].bstrVal = itemStr; ^% M, q$ e# U8 a2 D) p. ]
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topicStr = SysAllocString((WCHAR *) L"system"); 1 p( m& Q4 P9 W! ` VariantInit(&pokeVariant[2]); ' I9 C c- i1 w pokeVariant[2].vt = VT_BSTR;" {% F4 y' d. b
pokeVariant[2].bstrVal = topicStr;; I+ \; W- z% Q
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// Set the DISPPARAMS structure that holds the variant.- ?1 c8 ~4 h9 C1 A% w2 i& n
4 X& e) n B, m* | dp.rgvarg = pokeVariant;# U5 Q5 Z; h" u6 c0 V+ Y/ q
dp.cArgs = 3; + o1 r/ L2 o' N F dp.rgdispidNamedArgs = NULL;, L7 H1 q1 [ x9 ^: O
dp.cNamedArgs = 0;3 P- y, n, F8 I/ q3 B$ e7 ^$ f' U
. V+ Q( p9 ^! G, c7 o* Q' n: B; T8 D+ L// Call IDispatch::Invoke()# G8 Q$ ]; q4 D7 J
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hr = m_pDisp->Invoke( 5 v A* q5 g5 y3 w9 } pokeID, * N5 D# E5 C. U+ Y3 a IID_NULL,5 `9 M1 F* p* u' |7 P
LOCALE_SYSTEM_DEFAULT,5 u% G- h4 P. C" n+ G: x
DISPATCH_METHOD,2 X8 S0 V' [; ~3 @. T9 Y
&dp, , i% C' Z9 E$ {2 N NULL,# `/ Q5 d* }$ _8 X- G/ D+ T
&ei, ' m U; s1 ^' K" o &uiErr);" J3 h6 B0 ?8 }: g/ D0 x! S
" f* G( P& c/ q4 ~( J SysFreeString(topicStr); 5 ^- b" A: ]- c# G8 { SysFreeString(itemStr);. y2 L! M) U8 \. p
SysFreeString(valueStr);- k5 ?( C5 m; p! S8 N% y
9 z$ \, O* j3 ?; A" H4 G. f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??? o' {+ g7 W1 i: x9 D" h
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????& W9 R& m% x) e# E
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2.这是request的程序+ z; H" p' x5 `5 w' q. T& D
// Request a value from Extend " E* |- P7 L/ V8 y/ H; k, A// - u9 v$ _; Z2 q6 J; v- e2 U9 E1 u// Initialize the variant that will hold the BSTR. Set the variant's - b6 {; P7 b- @! z) }// type flag to indicate the fact that this variant holds a BSTR. Place the 5 e4 k" l/ _7 K/ O3 q// BSTR into the variant structure. 1 z) G: _5 J" P * _: ]% n4 Q: R! w requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# k8 M# E. ?8 Q6 d6 D
7 G9 D! S' N5 i0 B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); e3 n. E2 j, g7 s7 p2 b
VariantInit(&requestVariant[0]); # ]( A" p* H: B' L# o% |) I- {- |
requestVariant[0].vt = VT_BSTR; 4 ]/ D4 [- _, ^* h requestVariant[0].bstrVal = itemStr; # ^5 M; S& Y) R3 `1 [8 T w, Z* N3 A9 W/ R, V; r- d" j% T
topicStr = SysAllocString((WCHAR *) L"system"); . w* m% k! Y8 P, H, Q- c; \$ d9 l VariantInit(&requestVariant[1]); + }9 H5 t, y& _. R8 J( t: h
requestVariant[1].vt = VT_BSTR; $ n" k* p9 M7 O# L requestVariant[1].bstrVal = topicStr; ; R0 i5 C9 {! P& k; j t3 m ) z: Q, F2 F" o* _// Set the DISPPARAMS structure that holds the variant. : Z; j. r/ c( Y a9 j! |( V4 T+ D # {) F% z7 ~+ H3 E( Z( S5 B dp2.rgvarg = requestVariant;! L) Y# l# T1 u+ `9 x+ L
dp2.cArgs = 2; 0 s0 `* j i3 P D( C8 ~ dp2.rgdispidNamedArgs = NULL; 8 `- L5 V5 V/ Q dp2.cNamedArgs = 0; $ h, w6 H4 B; J. j+ [" d) H 8 s1 P' T! t/ g- g var.vt = VT_EMPTY; % M4 g. J2 j( _' U$ _$ y2 b $ y) Y7 m* w- r4 W* E// Call IDispatch::Invoke() 3 d8 w. h: u5 D/ w' a6 J; _9 w4 C$ H ^( Q" ~2 B% W
hr = m_pDisp->Invoke($ B# j0 R- N2 D. |: k. K+ k% }
requestID,7 c5 B4 ^. F7 X4 G! x) I
IID_NULL, : Y g7 j. y7 c# u& } LOCALE_SYSTEM_DEFAULT, 0 @: x S' U! _( ` DISPATCH_METHOD," _! R9 v% `( L: G
&dp2, 0 \4 A$ u; @* ?( Y+ Y7 } &var, ) h8 _) r' C( _2 t% {7 M &ei,3 v% _9 W- S) o3 y' v
&uiErr);" _; o+ _' x8 i' f2 l2 p
, @- a! Z6 l3 F: ` SysFreeString(topicStr);$ p- P9 J$ L. ?$ \! q- [ i
SysFreeString(itemStr);% N! l! ]7 T t( D$ B& G+ k0 D- t
请问该程序是获得extend里面的哪个值?# k+ r" a1 v- _
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????