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:! I, K$ z) @/ _8 y/ t
Name = (WCHAR *) L"Poke";: |0 D$ p4 K `* Z7 V- p$ X
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hr = m_pDisp->GetIDsOfNames (: r) [6 Z( q7 Y( |0 c
IID_NULL, // reserved7 W- H- r+ z G3 P: e
&Name, // Array of names to get IDs for) v4 u; w# x) @
1, // # of names in the array: ]5 c: G, m. V1 Y7 ^# W& P
LOCALE_SYSTEM_DEFAULT, // System locale . Y, D& g( G) h% g2 p; C &pokeID); // Array of IDs to fill on output " w+ C( `" S# L& l8 D6 b, } 8 D% ^& D, V2 ]* m. x
if (hr): ^1 D! A/ _1 U( z
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MessageBox ("Get Poke Unsuccessful");( U4 v8 o9 @2 g5 A
return; ) S$ \4 B/ n, G0 r } 9 G! e/ ~, m) h3 _7 a6 J- o8 y5 }0 u0 W( {9 L$ z0 J! S
/**************************传递数据给extend**************************************/8 N& ~% z* q$ r7 n
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 4 b3 ]2 x- l2 t2 `3 c6 I' l7 i + n" E- p T" x* [) ]
valueStr = SysAllocString((WCHAR *) L"1232");: S# X6 e) o6 r! `- x
VariantInit(&pokeVariant[0]); ' b3 g% W) L* H pokeVariant[0].vt = VT_BSTR; 9 f ^% E$ q" z O* y4 I pokeVariant[0].bstrVal = valueStr; $ W* G, v9 L/ O: k; i$ S+ _. K- ]: s3 F' R9 i
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ x% D5 O: E0 r" G
VariantInit(&pokeVariant[1]); ' T2 s: T- t/ o8 }* r/ j- E
pokeVariant[1].vt = VT_BSTR; + {5 Y# M; \7 i/ o, u pokeVariant[1].bstrVal = itemStr; / Z5 M0 R! b0 J. C" l/ `+ b) ?) X, _7 ^1 e! S" y( ?
topicStr = SysAllocString((WCHAR *) L"system"); 3 T5 ?/ l5 R) s& a: h VariantInit(&pokeVariant[2]); + b. D; E$ R, |0 [/ x' @! E2 s pokeVariant[2].vt = VT_BSTR;* v7 ]9 E8 r% O( ]( r: \4 P; ?+ v
pokeVariant[2].bstrVal = topicStr; % G/ b8 C" \) L+ T$ J q. z) r2 f/ e4 _( I. s b) S; Y: ~. y9 a' \
// Set the DISPPARAMS structure that holds the variant.- F( K! t7 x- o' D& |( R
! {( Y' q5 Y5 h9 r R6 C! g" F$ C0 l& c dp.rgvarg = pokeVariant;1 A3 v& G0 S. U; b. n
dp.cArgs = 3; ' D, M6 }/ y# \" k- u: N dp.rgdispidNamedArgs = NULL; ; F4 T' ~5 H" G3 V. I3 r: e dp.cNamedArgs = 0;1 E" ?" f" t- i
. L- G8 U. C* C; J8 O* Z- u' `// Call IDispatch::Invoke() 1 t) @2 ^' s4 [8 Q6 I& L, W$ Z! I' N! h6 U6 {& u0 k8 z) M' t
hr = m_pDisp->Invoke( 9 a, k8 s1 C% w6 Z; O" e6 W. z, f pokeID, 0 l5 I+ S& A- m- Y2 _ IID_NULL,9 r; _9 R3 y1 S- j
LOCALE_SYSTEM_DEFAULT, , v/ i1 I$ l! R/ B9 e; c DISPATCH_METHOD, ( ?; y% W o3 {( V8 ^. s- J &dp, * }: L- B/ G: i( T6 { NULL,1 M* y! Q1 `4 @/ j& l( \; H
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&uiErr);9 w# ~0 m$ f ]7 f* O, d
) y9 h) A0 i7 z: [' h! x: X SysFreeString(topicStr); 3 P( ^: V/ r( e1 g6 j SysFreeString(itemStr); 8 |# y: m, n, N" H G$ w SysFreeString(valueStr); # l7 j8 u* q6 H$ y3 M) P t8 h, K3 a p' k) S3 ^$ {
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???3 A; v ?; v6 X+ n
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???? D% ^) I: l# q% t: S* x$ r+ Q, g7 ~! U& q: K5 T: c
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2.这是request的程序$ p2 w. P# f" j8 L* R2 Y/ D& x
// Request a value from Extend% o8 d$ S, a9 @
/// `6 D7 x/ T0 ?2 a
// Initialize the variant that will hold the BSTR. Set the variant's. f$ S6 h; F( `! h+ L! d
// type flag to indicate the fact that this variant holds a BSTR. Place the+ H" A2 ^8 a& S5 c
// BSTR into the variant structure. * c" [6 \! n$ p+ U3 ]! @) A " G6 A# ]+ U. C8 P requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) Q! l' K* R% z2 B
- u# J `# ] }6 _# }% n. ] itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' o! ]+ x4 R% C' p# X; d' `! ` VariantInit(&requestVariant[0]); * t& a9 g8 K2 C! U3 ]
requestVariant[0].vt = VT_BSTR;4 X2 d1 i) T) j' \7 i8 u5 c& v5 `
requestVariant[0].bstrVal = itemStr; ; P& V" B% b; D& |& W, D* v; H; u9 B
topicStr = SysAllocString((WCHAR *) L"system");/ D5 |. m% j8 r# Q
VariantInit(&requestVariant[1]); " L$ I1 G X0 z
requestVariant[1].vt = VT_BSTR;" G! V8 ^, B5 V5 t9 D% I; ~
requestVariant[1].bstrVal = topicStr;9 k! |, m( [. C( o6 G& z5 Y: [2 f
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// Set the DISPPARAMS structure that holds the variant. ; m, X1 }4 }7 u4 `2 e$ G6 D% F$ { ( ]: @+ Z7 _2 { dp2.rgvarg = requestVariant;! F3 A. b' q J' l4 _3 p
dp2.cArgs = 2;, F6 \( ~) ]: w6 J9 Z
dp2.rgdispidNamedArgs = NULL;$ p E4 c1 N( ~9 u, L# R
dp2.cNamedArgs = 0; F3 X l2 F1 ^9 W* g0 X! ]2 p 7 p/ s( ~3 S$ l1 { var.vt = VT_EMPTY; , w5 u3 E$ b7 |+ }8 e* k9 ^ u2 e( I- G3 }5 z
// Call IDispatch::Invoke(). V* K4 Z4 l$ V: y! w
3 L* m* ?! t& m hr = m_pDisp->Invoke( ) A& L# O }4 S1 ^. G0 ~3 G7 S' R1 c requestID, $ M2 |8 M' H: j( Z' A, U/ r( } IID_NULL, ; H5 V8 F* \# s1 y6 q) f, ^+ E- ]6 J2 S LOCALE_SYSTEM_DEFAULT, B* H8 Q1 Z4 r: J" b- r
DISPATCH_METHOD, " b( v* F$ X5 L6 ~, m& a &dp2, 0 ~& N1 I4 K- Y$ j% h& R6 ` &var,- Q9 ~9 _* e7 j! O, c9 G! V" g, r
&ei,) G! q: f1 D, y. Y
&uiErr); 5 A% h+ L7 h& ^3 w* S5 T2 }; e, W |# o. z7 T6 s3 @2 N1 X% f( w8 o
SysFreeString(topicStr); : ?+ }! C1 ~8 n/ H SysFreeString(itemStr); . M2 M n0 C& g V6 @2 I L2 A请问该程序是获得extend里面的哪个值? % v: T7 p, W' e, k" C* M8 c+ r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????