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:: s# e- u* W# l. K7 P4 [: @- ~
Name = (WCHAR *) L"Poke"; 1 m, p; f) y4 d* g; a 4 C' p: W: E% w: u; O hr = m_pDisp->GetIDsOfNames (# q ?: o2 J# H, D: O6 m
IID_NULL, // reserved' t2 _2 A' x, T0 t
&Name, // Array of names to get IDs for ! \. g2 p5 B. H* x* ? 1, // # of names in the array 7 u- | M" Y( c% i" C5 L; o+ F" c LOCALE_SYSTEM_DEFAULT, // System locale/ b& F% V1 \, Y$ [( f
&pokeID); // Array of IDs to fill on output . }% B! s: s7 D0 W 9 h) I8 A' W2 a" n- P if (hr)& V, u# k9 i" \( M7 k; Y, f. D# f: c
{ 0 S1 Q6 ^" u& K4 p MessageBox ("Get Poke Unsuccessful");* G) c& L6 s: _; }
return; ' H( w% ^& C. j }! K5 w1 i5 S" F3 ^- B- m- u. k) w
6 a/ ]( t6 U& `! Q/ ]/ `" d/**************************传递数据给extend**************************************/ . y8 v) @: D# z; w pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);( z, d. {# k) S; @7 n2 P8 P A; W# u
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valueStr = SysAllocString((WCHAR *) L"1232"); 0 i8 Y3 @& j0 J; @, v( c/ Y VariantInit(&pokeVariant[0]); - Z6 o {5 Q0 r1 }* r pokeVariant[0].vt = VT_BSTR; , |( e4 F- M3 K4 O* R# m pokeVariant[0].bstrVal = valueStr; 0 w D& n* P7 t9 C9 o5 a- H& R4 T8 h0 _' k" Y& t3 f; a6 I
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); e6 U% g# Y8 w- y VariantInit(&pokeVariant[1]); # m6 u0 i9 `$ y3 ?- V: w& _, p pokeVariant[1].vt = VT_BSTR;1 g- O% i! k, K6 I& Q7 x8 B
pokeVariant[1].bstrVal = itemStr; " B# U* d0 x9 _( m1 G# p2 P' z 1 h/ L" f9 O$ u topicStr = SysAllocString((WCHAR *) L"system");' }, S2 h7 U- P2 f4 t
VariantInit(&pokeVariant[2]); * F: f% D1 C4 L% d
pokeVariant[2].vt = VT_BSTR;$ Z( W1 a2 b9 U( P/ _- D# T! v( { a
pokeVariant[2].bstrVal = topicStr; 2 J4 Z+ Y6 f, {+ x4 |" \4 i* f, ^& L/ a
// Set the DISPPARAMS structure that holds the variant.; r* _3 q& y f+ J; m
: U% R5 w. E! K. `% a dp.rgvarg = pokeVariant;* g3 o) }; [* e% R7 J
dp.cArgs = 3; O( J: ~8 O1 x- b7 O' A# x" E) E7 s
dp.rgdispidNamedArgs = NULL;4 O. `3 K0 T* m; g
dp.cNamedArgs = 0; 6 |/ C, a- X$ ]( Z) B1 a$ `! f/ F1 s
// Call IDispatch::Invoke() }! h- W% F8 p7 p& r9 F" @- q
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hr = m_pDisp->Invoke( ( A" }9 x3 d/ W: x" O; X- ~5 M pokeID,/ z0 ~/ P4 o8 o7 M8 A
IID_NULL, - {* E# i8 i& N: x, J& Y3 Z( M: ]8 }2 _ LOCALE_SYSTEM_DEFAULT, ! k, L; I9 u- Z, g DISPATCH_METHOD,5 V9 p% e& }5 e4 g" G/ @3 B8 q: Z
&dp," M7 c5 x( e- `- l
NULL, + C* Y2 O. l# d* G &ei, D5 A9 s( Y( B! }; @6 ?/ q &uiErr);1 x8 f9 l) c7 }! m* A5 A
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SysFreeString(topicStr); : X0 Z6 Z6 R& U/ Q }& k& Y SysFreeString(itemStr); ( M% \2 z! z9 _7 w( P SysFreeString(valueStr);6 @' ]; E/ r2 P/ `# _
' E/ T; \! f( T& R+ w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???% {1 e M/ W3 {1 ?& Q
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???? : f0 K& a0 `3 q2 @9 d5 \: E/ u7 j, r n Q! R% W. `; q
/ }: G7 T- o, a8 I+ T1 [2 G5 x2.这是request的程序- t8 Z& b+ N1 x
// Request a value from Extend) \1 _: G2 @( B' p% }
//; m2 Q0 A( I( n
// Initialize the variant that will hold the BSTR. Set the variant's & v7 T( Z: q: p) C' @4 J6 K$ _// type flag to indicate the fact that this variant holds a BSTR. Place the ; C' u4 C* H P// BSTR into the variant structure.5 F7 p5 p( I; v# H Y1 f6 {/ h
8 k6 Y5 f. e: { q5 G5 W requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); / ?. f: j. Y6 D4 {3 G 3 R9 f% I3 r3 g$ T2 E8 i- t itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 Q: r1 k# L# B. i! U8 f3 C) R& D VariantInit(&requestVariant[0]); + L3 d$ J; v c! e" N& [
requestVariant[0].vt = VT_BSTR; 5 K% o5 P7 T' p& _8 C requestVariant[0].bstrVal = itemStr;" |' P' d4 o u M0 }, k- z
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topicStr = SysAllocString((WCHAR *) L"system");7 R6 s5 }0 w2 n9 v1 \4 G4 r3 l7 D1 m
VariantInit(&requestVariant[1]); 9 |' d. a) `5 `% ` W* x
requestVariant[1].vt = VT_BSTR;0 {) x$ h1 c& ?1 E" }' Z
requestVariant[1].bstrVal = topicStr; ! Y8 G/ d6 ]$ M - T6 T" X9 `/ r8 Z// Set the DISPPARAMS structure that holds the variant.& X1 f4 X Z3 J/ z8 y( ]2 m1 r
V" a) c0 }1 Z) K+ S; @ b" c dp2.rgvarg = requestVariant; ( h! h' a. b+ k9 |. W dp2.cArgs = 2; 6 h! P8 R# |3 u% [. ^ dp2.rgdispidNamedArgs = NULL; ' Y t5 p* f( i% Q \1 l& k2 ^9 Y dp2.cNamedArgs = 0; 7 Z R, ]0 W) L' ^6 h" `) K - v; F' c2 K* [/ p) d& \ var.vt = VT_EMPTY;2 P- x+ I4 v7 g7 O# F
( g7 W: W; F/ F0 Q4 y% S6 E* W3 s// Call IDispatch::Invoke() 3 b0 S# ]; k6 b$ _7 S- d8 S : b9 ?# Y+ {! |7 d hr = m_pDisp->Invoke(# Y" N- F/ `! E5 `1 J
requestID, 6 c2 E; @2 Z. G0 w- M' M3 B: Y IID_NULL,! u5 b; J; G% m/ M: i
LOCALE_SYSTEM_DEFAULT,; F0 m! v' b$ f/ ]
DISPATCH_METHOD,4 }: b/ e, V3 Y U
&dp2, 1 ?. q/ C$ H) b8 Z. L &var,9 [4 e7 O/ n M" i" I
&ei, # z( F, S9 u: P4 o$ ^- u; k &uiErr);* \' Y6 L o7 ]8 v
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SysFreeString(topicStr); 6 Q/ s L; M& C5 D4 i SysFreeString(itemStr);% l- V: f( l' B! X$ `7 U
请问该程序是获得extend里面的哪个值?; Z# I3 F, M* _
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????