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:4 b% @% Q; t9 k! {, W
Name = (WCHAR *) L"Poke"; 5 B5 U5 e) }4 j O% ~9 r6 u2 C4 r - }( k, T1 e8 ]; {; R# w9 r' }
hr = m_pDisp->GetIDsOfNames (; Z3 Y) R# U; C5 E, s% a7 Z# w1 j
IID_NULL, // reserved ' V' ?3 u$ M/ l &Name, // Array of names to get IDs for 7 I3 W6 W3 ~) ?. p0 Z( ~0 l$ G# C& f& n 1, // # of names in the array% `; B8 W2 {9 C& S
LOCALE_SYSTEM_DEFAULT, // System locale / ^* B( S d) d* M( o. E &pokeID); // Array of IDs to fill on output$ S& t6 g; N) B* b) t* M
; O- Q! k. u& l$ ]5 } if (hr)( m1 m, V: X9 y) a! r( ]
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MessageBox ("Get Poke Unsuccessful"); 4 w7 X, [1 {# |3 Z: D" J return; D5 }) y1 A! m9 N0 J E } * _) q! N4 L2 n" ? ) e l5 E! t4 ~. }/**************************传递数据给extend**************************************/ 2 M$ S: w: H0 C/ V4 o( h pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : u ]% }' ]! ]9 q! @, y+ M - s7 z, Z9 y$ E1 t+ `; n valueStr = SysAllocString((WCHAR *) L"1232"); 9 y7 ^' t1 ?3 b7 _8 d VariantInit(&pokeVariant[0]); " J( A, B% u- A pokeVariant[0].vt = VT_BSTR;) ?2 C+ o, }( z9 R2 e
pokeVariant[0].bstrVal = valueStr; 0 |/ Y6 y9 r5 N/ m& Q3 t! X * `9 Z: n M1 a+ a$ g3 B# ] itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 d& G! d; D }1 R% _" z VariantInit(&pokeVariant[1]); ( n3 d2 |& H) i( ?3 O" x& E6 M
pokeVariant[1].vt = VT_BSTR; " Z% ?5 m' g7 R# W pokeVariant[1].bstrVal = itemStr; 3 U a7 U# V9 F H% I1 R' ]% [# a) K$ L m
topicStr = SysAllocString((WCHAR *) L"system"); , a6 V" p; X$ c6 ]3 w VariantInit(&pokeVariant[2]); % Y9 _3 N$ \" U* s! M0 K
pokeVariant[2].vt = VT_BSTR;4 k9 p+ ~0 H' m* U
pokeVariant[2].bstrVal = topicStr; 1 j7 K+ c: C9 Q( z6 \8 _ : A% M9 M2 b( O6 U2 T5 D// Set the DISPPARAMS structure that holds the variant.9 B# Q; D4 m: F) z# M( H
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dp.rgvarg = pokeVariant; 7 y8 V$ Q6 t" H. f( B+ Y, h( X, n dp.cArgs = 3;5 ]. f6 p' O/ _, ]8 y2 Y3 F
dp.rgdispidNamedArgs = NULL;" X1 g/ D9 P$ B& N; {% m3 j
dp.cNamedArgs = 0; $ f# i! d0 j# h2 K. q, [3 [% q . L5 C! G$ y; @' }' p// Call IDispatch::Invoke(). V1 Y0 H& X4 N3 l- _1 [
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hr = m_pDisp->Invoke(, X m; [) f6 ]; K$ g
pokeID,, V) }4 g2 P s8 }: Z
IID_NULL,# Y2 C ?7 P+ o. e7 o& w
LOCALE_SYSTEM_DEFAULT,9 X5 h7 X& R4 s
DISPATCH_METHOD,0 J$ ~0 c: @; G3 r3 X5 k$ V+ l
&dp, # y; h( M& R' `7 m, S* h7 H7 v NULL,6 i1 i+ @4 i" }- ^0 H$ {% b3 O& Y
&ei,# [' h% d g0 F; e' b2 Q7 O
&uiErr);/ a2 h* R% W+ }, u
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SysFreeString(topicStr); . l* Z8 _7 a3 T" W6 V# _: Y SysFreeString(itemStr);3 o7 K. y) N f" J5 N3 s# V
SysFreeString(valueStr); : s) z# S+ t; s V7 |+ T$ b8 S! J$ r/ b) K5 g9 f
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???; A$ R+ s W$ U4 \3 H
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???? 6 c+ v( {% w3 z C: e, b5 i! |5 j
" h$ H- x( f+ {2.这是request的程序 ; [1 u6 F3 s' U% Y// Request a value from Extend . I' R0 s( C; m' j( ]8 G/ D+ p//2 A# ?& T& N* }) E1 g8 h8 J0 a
// Initialize the variant that will hold the BSTR. Set the variant's# [+ Y# ?' l/ b# f# W- j
// type flag to indicate the fact that this variant holds a BSTR. Place the: N; A: E. o: u2 I9 z
// BSTR into the variant structure.3 ]& b4 C+ e: y1 |+ P; N3 V$ K
, D4 g2 O$ c; b- J1 N requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); $ Z6 }- H) F$ ]- R# ?5 C( Y n3 Q7 S ( {: }6 X6 D( O- D. G) ~) Z# i itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 b2 Z/ W. F8 D% x# h VariantInit(&requestVariant[0]); 4 g( w2 u! D; H- f) A requestVariant[0].vt = VT_BSTR; & M0 I# v: W* s* c requestVariant[0].bstrVal = itemStr; ! b; B2 i5 y( ^' W) C; c$ \ S6 |
topicStr = SysAllocString((WCHAR *) L"system");# E0 |) _$ e+ W6 c6 p
VariantInit(&requestVariant[1]); 1 L+ I/ I" G. k& f* ` requestVariant[1].vt = VT_BSTR; ; e! o' B: a; P7 p# E* U' P% P requestVariant[1].bstrVal = topicStr; $ A6 Y. Q2 d) U2 ?& q- ~7 K2 f4 Z# X. o9 I/ z) e
// Set the DISPPARAMS structure that holds the variant.* k6 Q+ S. b% k# D