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: $ S7 J5 x, A1 ?/ a) X! t+ `( rName = (WCHAR *) L"Poke"; ; t" Y2 _% R- [: G 2 W0 A) U1 L8 a hr = m_pDisp->GetIDsOfNames (4 o. y8 r: b8 o2 b+ o
IID_NULL, // reserved# U/ z7 U) \- f/ s
&Name, // Array of names to get IDs for4 ]0 g) T% E% F; o1 p$ L' l
1, // # of names in the array & B' r: Y# T) v* \! a* P6 ? LOCALE_SYSTEM_DEFAULT, // System locale 4 R8 Q4 a' H: Y( }) C &pokeID); // Array of IDs to fill on output9 ]; _! Q! p2 Q7 T" o* p" r* T
' X! r$ k& E" R if (hr) ) f6 i7 {2 U) Y! h% g9 Z {* a% v* M$ K* ^# y9 S7 N
MessageBox ("Get Poke Unsuccessful"); & h4 M1 I" N! R4 J9 x% P9 l/ x. r return;. b9 x2 E5 [* a+ p* V0 q4 C& {! t
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/**************************传递数据给extend**************************************/ " R. ^% B% h& j- V! C pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ) m' @( t8 H5 }* ?6 ]( O $ b8 E& ^/ _" j/ F+ Y valueStr = SysAllocString((WCHAR *) L"1232"); ; ?5 _$ V1 k. K; B8 T VariantInit(&pokeVariant[0]); . `# {: q$ [5 O0 f pokeVariant[0].vt = VT_BSTR; % p# U$ l9 a6 r7 C- x& Y6 ^ pokeVariant[0].bstrVal = valueStr;* e5 Z& A9 u% g
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % e8 V# @9 j7 Y" H VariantInit(&pokeVariant[1]); % z7 N1 V9 z0 Q+ d" M pokeVariant[1].vt = VT_BSTR; 7 {2 J3 D7 P& X# S# @* F" {2 S pokeVariant[1].bstrVal = itemStr; " P! u' y( E q$ h- G5 T; Z0 J' s9 a8 @. S( z( a9 e" E
topicStr = SysAllocString((WCHAR *) L"system");5 S: z6 ~3 ]+ a% p3 e
VariantInit(&pokeVariant[2]); 1 H4 H% V5 G9 K4 N2 o
pokeVariant[2].vt = VT_BSTR;/ U2 W* d1 J) P! o: j# {
pokeVariant[2].bstrVal = topicStr;/ g" D8 x/ R+ \8 |- ^8 C0 M
% g6 q% s8 y) k; A0 X. u8 M// Set the DISPPARAMS structure that holds the variant. / {) P2 U2 ?- G( Z , @6 p& a: o) J# K7 |# A dp.rgvarg = pokeVariant;4 P c! N% w( w1 O; _
dp.cArgs = 3;3 Y6 ?9 y/ u5 M/ h; n
dp.rgdispidNamedArgs = NULL; . K. v C/ N3 Y: C' g& \$ `1 E1 G dp.cNamedArgs = 0;6 }8 _; r. L; M' B
8 |0 Q7 S3 T% n. C7 C2 `/ S( C// Call IDispatch::Invoke()- A0 U+ [# _( g" s: ^+ J
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hr = m_pDisp->Invoke(3 R4 k- B- b6 W9 y: l; J0 ?
pokeID,, D3 g2 ]- C- l- m. M9 K' |
IID_NULL, # U! r& A2 G6 r o LOCALE_SYSTEM_DEFAULT, / s3 x: F3 X7 O7 T DISPATCH_METHOD,. p: C( G5 V. ?6 R
&dp,( V/ g/ d0 e3 ?- ^
NULL, 9 U7 U+ e$ i5 |8 R4 \" |& L &ei, 4 o- f4 i! U C( p1 r/ d' `) ? s &uiErr); 1 D" H* Y# H+ K1 d0 c7 n! y" ~" D" d5 f" [* F
SysFreeString(topicStr);# J" ~) d) F+ s# z/ V+ r* m- {7 B
SysFreeString(itemStr);- p, }- U, L/ B% ^. f3 ]/ l
SysFreeString(valueStr);1 z$ J* ?) M+ q: V
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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??? " [5 F' f$ b4 ~( l2 k6 a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" k0 R' `8 L6 ^! ^* @) a0 ~. c) W: n8 B) U9 \) m9 N
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2.这是request的程序 ; i1 N- `2 P! p# {- `// Request a value from Extend + J. R9 i) m$ `* Y3 Q, w4 i8 d//5 H0 d8 q7 a/ C* M* ?
// Initialize the variant that will hold the BSTR. Set the variant's " B' D j4 h4 p! {; w. Q% o2 i2 _/ z// type flag to indicate the fact that this variant holds a BSTR. Place the 4 |5 k$ j; f4 `$ ` g0 N// BSTR into the variant structure.. R+ } P9 B" ]; H0 i
1 Q3 O1 ^. T) s7 A/ O" |) F [2 w7 w requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- E I# ^7 V: A( j2 e1 {