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:' S/ p( ]7 N. f0 ~. m7 b9 Q4 R$ `
Name = (WCHAR *) L"Poke"; # ~* D# o3 Z- g0 a0 @1 _ ~' y 4 ^2 h5 A0 @" ~: l/ o+ ?7 U/ L
hr = m_pDisp->GetIDsOfNames ( " j1 t- b3 T+ `% Q; C IID_NULL, // reserved) N( G# h# J0 d* o
&Name, // Array of names to get IDs for) G& p) k# O9 m7 J) a! V) @7 W) ^
1, // # of names in the array8 S3 T' M; `# T' m5 K' ~9 }
LOCALE_SYSTEM_DEFAULT, // System locale* X ?# m! |( p5 F# c. _% D
&pokeID); // Array of IDs to fill on output0 W$ Z9 J7 k; G7 X* L9 S' G
o; }2 E5 H5 q# q) l if (hr)- ^. y% P# p+ v4 v S
{ ; h9 T6 ^0 L) v/ z+ x# y MessageBox ("Get Poke Unsuccessful");+ P1 p/ |: k7 y! w! d% X4 C. h
return; P1 K) Z: `$ e# M! Q3 u% D
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$ z% o3 G. u) P6 ]/**************************传递数据给extend**************************************/9 d; H- ?* t! P5 \- x$ `
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ' _. B- o& N- l% D5 } m0 ]# Z$ Z3 D 9 j8 K$ k( I7 u3 d/ p8 ^ valueStr = SysAllocString((WCHAR *) L"1232");+ J% r' K: t) x' b
VariantInit(&pokeVariant[0]); & l2 W$ u. g# p; h! Q9 I pokeVariant[0].vt = VT_BSTR; 9 q. Q3 Q' [. B% n9 @ pokeVariant[0].bstrVal = valueStr; 7 i; Z* V. d9 K, c& O$ r3 L M" {& j6 p2 {7 _, W4 u3 B: i/ g
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ @3 e6 x) |7 X7 I7 A A
VariantInit(&pokeVariant[1]); 2 y% B+ r0 ^! ^3 S, C pokeVariant[1].vt = VT_BSTR;% i9 r+ j) V" B0 ]
pokeVariant[1].bstrVal = itemStr; " f' A0 f( K/ I, K; X5 @" Y6 x0 v3 H, C8 z# A
topicStr = SysAllocString((WCHAR *) L"system");* Y$ ?/ j* v$ ]0 a
VariantInit(&pokeVariant[2]); 7 H( r" p3 w5 b. J
pokeVariant[2].vt = VT_BSTR; 8 R+ b% ? `7 \& K% V pokeVariant[2].bstrVal = topicStr; G0 _' E) P% `8 ^3 E+ B
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// Set the DISPPARAMS structure that holds the variant. : p5 c3 d4 U9 q* k, ^5 A% ^. I! h6 }* E5 ~/ m" W9 i* R7 [" r
dp.rgvarg = pokeVariant; : ]* t6 D W3 @: i# P6 A8 B8 _ dp.cArgs = 3;+ T! i9 O. J0 F
dp.rgdispidNamedArgs = NULL; 8 t% e1 w4 _) _. z' E$ \: e dp.cNamedArgs = 0; 7 ~9 ~. v8 t% C, O% B/ h 7 w6 L" ?8 m& d! a3 v& e// Call IDispatch::Invoke() & S9 T9 B; c# K $ k, y6 A8 t- C3 G hr = m_pDisp->Invoke( 7 ^/ I, N& G" b8 n# v pokeID, " U& [' q; \( P% Q3 |0 B" p# d6 X IID_NULL, + o3 ?2 h/ ~# g, ?8 o3 k" a. k LOCALE_SYSTEM_DEFAULT," u# k6 a6 J$ G! ~' G
DISPATCH_METHOD, " z8 ~7 @2 q5 E8 W% g4 {1 ^ &dp, 3 U! u E6 G2 {9 t+ n) R NULL,; M* p4 V7 y e- ^) k2 O
&ei, " L5 k! T3 b4 h: z8 F &uiErr);! ]: g7 B3 |2 W
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SysFreeString(topicStr); % w% R& ^) ~8 \' D; p- I, \ SysFreeString(itemStr);9 O+ c1 P5 e& A, I4 Q" c$ L& I% Y
SysFreeString(valueStr); 3 Z; n, V5 {& z; |0 ^ 8 Q. j3 b- A; ^9 Y$ }9 y8 E+ `3 }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??? 6 s5 Q. ?$ }: O- v8 U0 n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????- S$ M, ?8 y/ U. k
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. L" a5 J" @0 S' @0 c2.这是request的程序1 T8 ]& e* M7 i7 m+ h4 H
// Request a value from Extend3 {0 Y- b# y& L9 _* P6 F, q$ A
//. s5 b8 h6 B+ ~, g" t
// Initialize the variant that will hold the BSTR. Set the variant's ' Q- d& {) m/ q# F: k9 t// type flag to indicate the fact that this variant holds a BSTR. Place the 8 t5 f6 I6 m# K& c8 F" v" b; W// BSTR into the variant structure.: y3 B2 N1 e8 C
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% } h4 y8 {4 b5 k: O3 [
, b* G" R* l2 I itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * p/ B2 c2 a2 O# n/ H( z5 ]6 G VariantInit(&requestVariant[0]); 3 l W6 t0 V8 o* s# f
requestVariant[0].vt = VT_BSTR; 5 {- w. v! d# |. t( n9 x- n requestVariant[0].bstrVal = itemStr;' m/ R6 T9 k& b$ M
: \5 |: k5 x8 I* B9 G topicStr = SysAllocString((WCHAR *) L"system");. B; C5 ]0 g% X* g' ]* h7 Z7 F/ S
VariantInit(&requestVariant[1]); 3 i- L g& C; C* p
requestVariant[1].vt = VT_BSTR; 6 v: u/ y, { R1 }' L requestVariant[1].bstrVal = topicStr; 0 i* b$ p2 x/ f+ D; i f9 |5 s& D( ~& }2 U, h* i/ N) Z, t6 _
// Set the DISPPARAMS structure that holds the variant. " _, n" x5 ^( R0 a9 d6 F9 H& x C3 i7 {$ S' B2 R p
dp2.rgvarg = requestVariant; + U3 X" Y# m1 L! l" f0 c dp2.cArgs = 2;3 q. p$ D* I& P5 m8 I, N
dp2.rgdispidNamedArgs = NULL;1 x; E: `3 j1 W: e% s. [6 g, U
dp2.cNamedArgs = 0; . H- k- m2 p5 M$ `. J; Y' I0 E9 \: V- l
var.vt = VT_EMPTY; v1 ]" Y. A* U' u5 M
# [' a% {% Z+ _8 w! J5 b( N
// Call IDispatch::Invoke() & r) I, u" z9 m+ N0 g3 z* g7 C( r: }+ I# t) A8 s; Q f$ C
hr = m_pDisp->Invoke(1 Z$ i, N& v$ x0 v: F7 b( m, c: c
requestID, . M2 X, }) M, K2 }4 p6 z IID_NULL,: Y" U8 B+ l4 k1 D0 e
LOCALE_SYSTEM_DEFAULT,. M; h5 B: T1 g- S0 ^3 f
DISPATCH_METHOD,- \+ T0 o1 A: o- F i- T$ Z+ Y
&dp2, * T0 |8 z/ j( ?; J6 q! ? &var, 4 i* B6 n0 d) @) l. }, @1 A &ei, 3 y2 ]* F/ Y- p* T$ W &uiErr); # j4 w. G3 e, E/ l7 J& y1 q! |1 |) J( s2 w; Z" t# \: J* I+ }8 ^1 f$ a
SysFreeString(topicStr);6 x4 ?7 P: W, L- A1 h* _& o
SysFreeString(itemStr);3 W" f+ K# x: J
请问该程序是获得extend里面的哪个值? Q B0 z. o$ _5 i9 o5 U* E; _
如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????