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:0 x9 N. {+ B. _$ P
Name = (WCHAR *) L"Poke"; + s0 {- C3 m6 A& a 8 N3 Y' M( Y& j. J hr = m_pDisp->GetIDsOfNames ( / d" S$ Q1 q# E* X/ o0 E" P IID_NULL, // reserved) o4 P& l$ j% E9 H
&Name, // Array of names to get IDs for) p) L; f& ? ~$ U! d# W5 y
1, // # of names in the array ?6 f* F, p" n6 h LOCALE_SYSTEM_DEFAULT, // System locale! ]0 |. e f' M6 W }3 A- D
&pokeID); // Array of IDs to fill on output9 K B: a1 n0 d: f
! i+ d5 x. C% P if (hr)2 }, \& V, R4 J% W; p$ I
{ ( [5 c& ^# P% I) ~# u# p MessageBox ("Get Poke Unsuccessful"); / a* {+ {" v, K1 I return; 7 ~$ d+ c$ v u% e2 S- X0 z }6 Y' o7 o9 B; d8 o
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/**************************传递数据给extend**************************************/& W4 U9 Z. a6 }0 S2 _
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ) W0 u& y- @6 X, F - l$ [5 l) }) M, y0 N
valueStr = SysAllocString((WCHAR *) L"1232"); 0 F& T( @& C& T VariantInit(&pokeVariant[0]); 8 h+ x3 Q% x. R% Q* } pokeVariant[0].vt = VT_BSTR; & U. c/ p4 K0 M5 w, H pokeVariant[0].bstrVal = valueStr; - M- c; i; T" ^( s; u6 Z) h. D7 ]4 ^( h- s. m; D
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 T" O- N' ^: I* |2 f% Y
VariantInit(&pokeVariant[1]); * V& j9 M2 l( c% i7 G; G
pokeVariant[1].vt = VT_BSTR; + S# n) g# `& [" C$ F pokeVariant[1].bstrVal = itemStr;) v2 B6 M* u. c/ @/ J
" M- ~) i: H( T; E5 c- L8 e k topicStr = SysAllocString((WCHAR *) L"system");8 @& U8 K1 [: ~: |5 H9 B0 O2 a2 u
VariantInit(&pokeVariant[2]); 3 N" B- N6 Z% L7 E/ w% P
pokeVariant[2].vt = VT_BSTR;. b H8 V/ A1 G
pokeVariant[2].bstrVal = topicStr; 4 p# N. P. z: T l; K9 K1 g! ~/ l6 \: i0 X1 R* g
// Set the DISPPARAMS structure that holds the variant. 2 f4 X# r" S" l+ r/ f. Z3 Z6 {' L% [3 e
dp.rgvarg = pokeVariant;0 l, U$ |) Z3 K0 l
dp.cArgs = 3; $ u Y' _- e* p, c- F dp.rgdispidNamedArgs = NULL; 3 r3 M! W3 i; K dp.cNamedArgs = 0;7 Y: ]0 r0 K) N2 u8 x% \
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// Call IDispatch::Invoke() 1 R0 L, S& l% R' m1 r3 F - E: ] w: T1 H2 e) H hr = m_pDisp->Invoke( ( U) B0 d' [& A" t! N4 J pokeID, + i+ H- a0 h+ _9 q! F. q IID_NULL,, ]9 u3 ?) |8 D6 H/ X
LOCALE_SYSTEM_DEFAULT,- J6 ?) H' S2 P1 |0 G
DISPATCH_METHOD, 3 _) t; F4 u$ R* t9 A &dp," c% p9 H6 k6 z
NULL, : x6 M5 V1 N2 A; ^2 h8 x &ei,4 s$ x- B. J* c! O8 T f! p
&uiErr);$ e; Z( _! q+ s. Q" u0 k
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SysFreeString(topicStr); [: }! ?: ~0 }7 m9 t1 f2 j9 P SysFreeString(itemStr); 2 M' }! S5 ]" X$ A" o SysFreeString(valueStr); + w9 S0 T: T/ A% B* j - i6 J/ S) y3 ?3 g# N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??? ! _ p+ |+ l5 W- ~) l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????. C3 k" u$ u' |2 @
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2.这是request的程序* h/ o7 X& R7 k) |- M2 a7 V$ @6 Y
// Request a value from Extend o- D2 B7 B( }0 L. k' F' D, h! F- F
// 1 L- H4 a% [1 W; A// Initialize the variant that will hold the BSTR. Set the variant's + o# l5 ]4 H9 @: Q/ H( {// type flag to indicate the fact that this variant holds a BSTR. Place the$ \( A# O5 X! j9 [- F+ q# ?0 V2 H [
// BSTR into the variant structure.8 J7 Y; A x/ m J
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- F: f8 C/ C1 N
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 j) V0 a4 D( X- y9 v
VariantInit(&requestVariant[0]); : S8 u- w# V$ a0 |( J requestVariant[0].vt = VT_BSTR; . c; Q1 b1 O) D3 B) }: i requestVariant[0].bstrVal = itemStr; " w. q! B6 ]) k& m0 E9 S" v% ~6 [/ r! o
topicStr = SysAllocString((WCHAR *) L"system"); + @" W( _6 `- I6 w1 ~" f VariantInit(&requestVariant[1]); - [* k8 Q" r: {2 M requestVariant[1].vt = VT_BSTR;( Z+ X+ V @0 w. x9 Q% X* V2 D/ q
requestVariant[1].bstrVal = topicStr; ; C& q8 A$ |1 t7 `- U8 j8 v4 C j5 ^9 F / R5 ^. I; Q8 c6 g# w// Set the DISPPARAMS structure that holds the variant. / u6 Z& ]7 m) m) g9 U9 o5 `4 A+ B0 J" G' F) n m# X$ Q
dp2.rgvarg = requestVariant;7 U" Q, ?. B0 y' r
dp2.cArgs = 2;7 e4 x0 a) t+ r
dp2.rgdispidNamedArgs = NULL; ! u& d6 A7 \& W4 B; s2 P$ M dp2.cNamedArgs = 0;; [, V6 K* n) c/ O& L; \