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:; @) s8 y0 ~3 T8 J, N
Name = (WCHAR *) L"Poke"; 5 f" c+ J) G! e4 P. E 8 D' {9 v& a; _$ ^, Y
hr = m_pDisp->GetIDsOfNames ( ) Y; R; F7 O& U. S# u) x: ~ IID_NULL, // reserved" ?6 L# L3 w- m9 u. Q8 T' S7 U& D
&Name, // Array of names to get IDs for " l. V# I, A$ N* e 1, // # of names in the array 3 O( p* e0 u2 d/ P* Q LOCALE_SYSTEM_DEFAULT, // System locale" f+ P' k7 s/ m3 P& l
&pokeID); // Array of IDs to fill on output6 I6 w2 K1 i9 m3 I9 ~, G5 p
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if (hr) + h2 b- [( i0 m; w" k! Z {0 ]4 {" f8 X# O$ g4 C3 Z4 o$ M
MessageBox ("Get Poke Unsuccessful");! e/ M$ A' ^8 U6 \; x
return; % p/ b/ O" k+ R; R& @ }2 g# B+ h, B: U
- o% V5 a, @, _% X% F( F/**************************传递数据给extend**************************************/# S3 M1 ~% i2 ?" n. s
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ [! W8 l% d7 ?! w$ l' j# V( {
3 ]: _9 B8 M8 y valueStr = SysAllocString((WCHAR *) L"1232");4 m- ?: L7 l8 Q1 D( C; n0 @/ {
VariantInit(&pokeVariant[0]); ' m$ P Y* j7 z
pokeVariant[0].vt = VT_BSTR;1 J5 D- j2 C# C6 q8 L5 e0 S' y
pokeVariant[0].bstrVal = valueStr; , N0 N d# E9 J& [' B' ~. s& s6 {& x
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' d) A: l* K( p" ^ i
VariantInit(&pokeVariant[1]); ( S, R4 S( r( C8 Z" w
pokeVariant[1].vt = VT_BSTR; ; c' i3 m: h: X6 S O pokeVariant[1].bstrVal = itemStr; ! W: W( z7 S3 H5 W6 `! { , l8 k6 U, k5 S topicStr = SysAllocString((WCHAR *) L"system"); ) I# ]2 F( r0 V6 ?8 ` VariantInit(&pokeVariant[2]); 6 n4 G% N% t& g. Y4 M pokeVariant[2].vt = VT_BSTR;, S0 X- J0 {( e8 X) K
pokeVariant[2].bstrVal = topicStr; : j- r" H# O( X& T4 }9 Z- X( W0 N- y+ ]5 h: w
// Set the DISPPARAMS structure that holds the variant. ' ~& P( F, ~- K/ i1 l, V8 A8 x- n# r5 e
dp.rgvarg = pokeVariant;# `$ Q6 n& K8 C% e3 H/ z+ |
dp.cArgs = 3; 9 ?# ~& R! k# `3 u: { dp.rgdispidNamedArgs = NULL;6 k7 ~0 |; C |- d; J; }
dp.cNamedArgs = 0; 0 A+ ]$ y% g+ [# K / p. _) k$ ]; K% C" Z// Call IDispatch::Invoke()3 ^! A7 h: @' A z' O8 S# y
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hr = m_pDisp->Invoke(& L6 D& p y' j5 P: J" W
pokeID,( K) K, Z" N V" e5 I( E8 G5 `
IID_NULL, 4 R& Q, f- P! q LOCALE_SYSTEM_DEFAULT,& t# j6 L+ y8 L
DISPATCH_METHOD,3 i6 y" r! a9 p: ~$ U+ k0 u0 f: C
&dp,; X6 l! \4 l& P( ?
NULL, $ U) d; T3 T/ Z2 D( x& V& }- ^ &ei,5 ?) [9 d9 m- O) k9 w* h7 H: \6 N
&uiErr);! u: |. ?8 T }
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SysFreeString(topicStr); 3 s! c; s7 X7 L- c$ N SysFreeString(itemStr); / O* c5 g" _/ ~5 W4 h6 t2 x- \' o7 L SysFreeString(valueStr);1 `2 [. @( [3 A" b
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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???0 c! t" f9 c2 G9 x
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???? 9 V& i# u3 o9 |& ^* X3 l4 u( R2 F1 U6 ` u I
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2.这是request的程序 9 a; l3 g/ y/ W8 {8 X// Request a value from Extend" b$ g# K. e8 ~" @! r
// ! ]/ t- i7 k _% M$ V$ S// Initialize the variant that will hold the BSTR. Set the variant's5 S, Q+ M) y4 ?( n
// type flag to indicate the fact that this variant holds a BSTR. Place the & k+ A j0 j+ u# K// BSTR into the variant structure.4 e+ Y% v) B; P# U0 f& V