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:. N3 U" ?9 d6 |# E
Name = (WCHAR *) L"Poke"; 6 {2 v: Q; o; o. x2 ^ + L% B9 \3 P( L
hr = m_pDisp->GetIDsOfNames ( : x) f0 Y3 ?3 o IID_NULL, // reserved+ h# u& r2 p/ U! c; ^. l
&Name, // Array of names to get IDs for" J0 I+ z, ]; d
1, // # of names in the array6 b; ] B+ v2 c8 I. h9 A( k
LOCALE_SYSTEM_DEFAULT, // System locale . c9 E! T, `% r4 R* D1 v &pokeID); // Array of IDs to fill on output/ O$ U8 h* q# B5 k! l- Z: O/ b$ r) G
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if (hr) & z5 f e9 t+ G0 L { $ f5 K1 I/ ^& [+ {3 T/ ~ MessageBox ("Get Poke Unsuccessful");8 P/ {# \" _. W
return;+ {! U+ e. z; U9 m1 h, k
} , k( F# d! o& d) ^3 V $ ?! X! |% s/ i/ W/**************************传递数据给extend**************************************/: e( ^' O! O+ d8 M% H
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); * H3 b! F; {/ s! G U5 i: ]3 j ) ]) R, n" F- j, k8 ^ L A* w4 ^
valueStr = SysAllocString((WCHAR *) L"1232");" U% j, [9 K* o1 m! G+ y2 Y" Y, e
VariantInit(&pokeVariant[0]); : r2 }# f [; J$ G pokeVariant[0].vt = VT_BSTR; 9 U+ f: E) f7 j- F+ U4 \' { pokeVariant[0].bstrVal = valueStr;+ h1 F5 X" S$ c4 S
8 S7 T- O6 k5 k3 S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 X4 o1 v4 p+ c) G) l VariantInit(&pokeVariant[1]); % @! C! F2 T$ s- U) \) h: ^
pokeVariant[1].vt = VT_BSTR;. E- k5 C/ L+ C; i
pokeVariant[1].bstrVal = itemStr; 5 x& v/ u, q3 M: t+ t ' o9 [) @8 C1 K8 X+ g topicStr = SysAllocString((WCHAR *) L"system");/ T* A& v% X4 i$ S
VariantInit(&pokeVariant[2]); $ y1 Y5 {/ n. k. i {6 {( h4 N: O pokeVariant[2].vt = VT_BSTR;; y3 {1 q( }" S, E' |/ U
pokeVariant[2].bstrVal = topicStr;" T8 G0 h9 S" q
2 f/ J% f" G0 ~$ n) i- j( P// Set the DISPPARAMS structure that holds the variant.6 l; T8 [6 r7 b/ E. F
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dp.rgvarg = pokeVariant;1 i3 J' L) W5 G* d W: d
dp.cArgs = 3; 5 V& q& _$ ` G dp.rgdispidNamedArgs = NULL;; C( D/ q! j4 I! Q
dp.cNamedArgs = 0;+ P8 Q( ?- y$ O- M2 D% Y0 N- r0 N
1 n) `2 l$ ?# B* |' d9 ~( \// Call IDispatch::Invoke() 0 t: U! g3 `" |) Q6 Q1 u6 G 2 y1 s' y3 n2 ]3 g hr = m_pDisp->Invoke( & c7 n" n0 A j% L8 G* ? pokeID,/ s# ]8 d' |1 q& X! l1 Y! P/ m
IID_NULL, 8 {6 S1 c0 G3 i. q5 Q LOCALE_SYSTEM_DEFAULT, 1 g9 K& V: o7 V5 O# U$ u, h. {: m DISPATCH_METHOD, / F( t* x) Q( Q/ U& ]5 e0 E6 b. Q: P &dp, ) T3 _3 I* N9 `" I' L8 n3 f/ s NULL,2 n |4 h8 \+ K$ E8 ] p
&ei,4 D; ]; R! \6 b1 r& [& i
&uiErr); 3 p- }2 @$ V# d% G2 X, m7 n, h s3 W2 k+ M) \* K( R2 z
SysFreeString(topicStr);" L/ Y, g) V; X6 Q, A0 i
SysFreeString(itemStr); 9 |+ _0 D7 W: T" O V5 j* L SysFreeString(valueStr); 5 n# o& ]; ^9 D1 |3 ]- X; t0 x 9 `- u) Q) p' ~ U$ q# K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??? ' v% N2 ^, M& I) U" Z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????; ^, J6 K' `! s- R+ L5 `" b `1 U
( m+ y! J/ a& Z% r6 y9 ?: d* ]8 C : ~: H& @, ]8 m; w* z' \ v2.这是request的程序 7 n* V& P8 Z0 b* q x) a8 S7 B// Request a value from Extend 2 [: }2 P5 G# E7 y8 \// 3 e w6 a5 P9 Q% [6 ^2 H// Initialize the variant that will hold the BSTR. Set the variant's 4 V& }+ Y5 B) V// type flag to indicate the fact that this variant holds a BSTR. Place the0 q* I4 v9 d' q5 Y& t. q6 a
// BSTR into the variant structure. ( |; ?, T6 u# @4 n* M E+ ]( Y; `, W( J F' v
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 p% D* y) j7 ]3 `, |7 D. o 4 C7 X" o9 e+ U3 o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . M, Z8 G) I% G7 Z, S VariantInit(&requestVariant[0]); $ V i" [) y" a9 K* Q7 R8 a
requestVariant[0].vt = VT_BSTR;0 ]% [# }% S; j. }8 B) X$ p' G, k
requestVariant[0].bstrVal = itemStr;( g6 I' s# ?. ?0 ~9 I; C
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topicStr = SysAllocString((WCHAR *) L"system");! v, X T1 ]" Q n7 r" M
VariantInit(&requestVariant[1]); 8 W6 E# Y! t: L' e6 r& c requestVariant[1].vt = VT_BSTR; ( O+ Z3 S4 y" X; G5 p# A1 M# U requestVariant[1].bstrVal = topicStr;4 J, B: R/ ~) r. A# Z+ j% o9 ?
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// Set the DISPPARAMS structure that holds the variant.4 F) o: h3 I6 P: \) H b9 c9 H