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:, Q9 {$ }; r* ]
Name = (WCHAR *) L"Poke"; ) d! |' C9 t# ~ ) z. _( j# a% ]+ D. T
hr = m_pDisp->GetIDsOfNames (3 u7 O: J7 h5 V0 e2 u
IID_NULL, // reserved& c0 ?4 T5 x/ {% B- V/ e+ d
&Name, // Array of names to get IDs for/ q8 s( w& i9 T! ?& W, L8 R
1, // # of names in the array ' H6 g2 \7 M* G$ Q* r/ V LOCALE_SYSTEM_DEFAULT, // System locale , q9 X+ \7 l- z" u# u( s &pokeID); // Array of IDs to fill on output: i5 l0 o3 f" N1 k% X9 u" R
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if (hr); I" z7 e+ g9 P* o4 q$ }
{ 0 M/ [" X# V$ H8 F% g! ] MessageBox ("Get Poke Unsuccessful");6 G5 v2 @" n4 s- I
return; ( D2 R& _3 N5 ]3 @ } - u% g$ w9 O2 \6 }# z% }- f' ^5 H 0 }" A& I# |" i. Y" D/ e3 N. h/**************************传递数据给extend**************************************/ , B1 z; p i) B pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);( q8 z n) r0 S4 `) N; Z' D
- k) Q$ c5 q' q valueStr = SysAllocString((WCHAR *) L"1232"); 0 e {: d' {3 _9 N6 c VariantInit(&pokeVariant[0]); ( d2 t8 n/ F. t4 K ~1 j
pokeVariant[0].vt = VT_BSTR;$ F6 M* z* Y# H5 B: K, L
pokeVariant[0].bstrVal = valueStr; 3 ^4 e. {% g1 ]& i/ R% R5 ~+ M3 S
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; H! I h4 D1 T* m" {
VariantInit(&pokeVariant[1]); ( R q% N! T+ h! c. X pokeVariant[1].vt = VT_BSTR;( D: D6 L. F0 K/ `. r
pokeVariant[1].bstrVal = itemStr; 8 `9 H6 h C. \2 G( N& z5 s# D9 {& ^8 @# r: Z5 @; ]. I9 L8 @+ ~% h
topicStr = SysAllocString((WCHAR *) L"system");' z) F7 L# _8 {/ x) q6 L
VariantInit(&pokeVariant[2]); , K2 J+ }! `! U' H9 ]
pokeVariant[2].vt = VT_BSTR; ( a3 a7 z# `0 a q3 |* j4 _ pokeVariant[2].bstrVal = topicStr; ! d/ O9 k2 y! {4 r4 A( x6 I7 c/ B# Z
// Set the DISPPARAMS structure that holds the variant. ) k' P) G2 S$ j i# S% r) ?- u& A " g( j' S/ A. e; ~4 X dp.rgvarg = pokeVariant; ( [8 M# `# d" |& P dp.cArgs = 3;$ T. S8 a1 T" t8 ]7 |% X; E
dp.rgdispidNamedArgs = NULL; " x' o, F2 @7 i8 h& d$ o! o$ m dp.cNamedArgs = 0;( A0 j3 W, s' @: ^) C
; @3 s$ K7 u) h+ b2 I- ^// Call IDispatch::Invoke()- j* ?7 q# i g6 y- {
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hr = m_pDisp->Invoke( + o7 V O O+ V pokeID, * \( _9 O+ J1 S( f* T IID_NULL, ' j1 i$ n v, O3 y. v3 c LOCALE_SYSTEM_DEFAULT,( E% c k$ i+ [5 A
DISPATCH_METHOD, ; `0 E/ q8 |* D& ] &dp,5 a5 L4 I6 U, D# m: w c
NULL, 9 W0 u: A) ?* V &ei, 1 c5 J* ?* b9 W' N3 B- o5 _+ F &uiErr); * S0 H0 I: U& h X3 j' P ) j8 L9 X' A0 l4 o( g# l) N SysFreeString(topicStr);3 C# Q; N& |7 }/ ~5 @
SysFreeString(itemStr);; G' j9 f. W' D: ?0 n# y. r
SysFreeString(valueStr); & Q! B4 \0 M' }5 u5 K {0 m. D2 J
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???; f d5 F, f- r7 f/ y
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????! l. r) O# R2 C& L! c' C3 ~# a
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2.这是request的程序" C3 l( r0 D2 p/ P
// Request a value from Extend 6 h. N2 @) p1 ~( X// % G2 z& A* W) ?2 R# I. V% A// Initialize the variant that will hold the BSTR. Set the variant's9 \7 \( b$ s: ~/ }. t
// type flag to indicate the fact that this variant holds a BSTR. Place the/ d' z' L) |1 w
// BSTR into the variant structure.+ x( d \' L9 i# }0 ?