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： ) y/ i5 ^" U) c( O* J: g3 @Name = (WCHAR *) L"Poke";/ \( b$ M# a0 t6 c
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hr = m_pDisp->GetIDsOfNames ( & {4 E& c; i' E- N3 M& r" @' n2 _ IID_NULL, // reserved& F3 B# \$ g) t- O
&Name, // Array of names to get IDs for ' d/ w5 j" G1 S# p 1, // # of names in the array9 U' S5 t" j1 b* v
LOCALE_SYSTEM_DEFAULT, // System locale5 U* b0 G; J7 p; T
&pokeID); // Array of IDs to fill on output$ q: {8 L, D. m% B- ^7 O9 ^) p
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if (hr)2 o. i( _! o+ _. W
{ ( t. Z$ W1 z6 ~1 r# @. B6 T: o MessageBox ("Get Poke Unsuccessful"); 8 N& O+ A3 C; W return;9 F: h; K8 D" j5 v- ~, W( e
} / k4 k# l- u+ t* B; @ 4 b) B$ l ~ \* \/**************************传递数据给extend**************************************/ " }4 X& n% K% U* H0 A6 W pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 C1 w: P# G/ \2 M% M
2 D* d& k3 g; u* n; } valueStr = SysAllocString((WCHAR *) L"1232"); 3 @* q, T1 |! Y VariantInit(&pokeVariant[0]); ' e4 c3 G$ u. a! y
pokeVariant[0].vt = VT_BSTR; ! `) W) [& ~! u7 ? pokeVariant[0].bstrVal = valueStr; # ~( h$ K5 U6 w: X$ N G5 U. q$ {) E6 m _) `9 G/ g
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( {- X+ V8 y* f VariantInit(&pokeVariant[1]); ( E% S4 C4 k& t( B |
pokeVariant[1].vt = VT_BSTR;. V/ P' H4 z* J1 Q# [! e+ I# j% C
pokeVariant[1].bstrVal = itemStr;! D" K" ~: N7 w* Z7 X
, q5 H/ d8 n: d. C" X6 R topicStr = SysAllocString((WCHAR *) L"system");, J* h+ S1 D* V# x" c
VariantInit(&pokeVariant[2]); 2 C, J2 e5 }8 v! d# \( Z/ ~6 a; T i5 V pokeVariant[2].vt = VT_BSTR;* f( \5 t4 ^+ u) |1 ]# m
pokeVariant[2].bstrVal = topicStr; $ \* T V7 S( a$ S' t * S& a F! L' T8 C8 v( P0 w// Set the DISPPARAMS structure that holds the variant.6 M; g, m/ g" _3 S ^/ h
/ T6 z0 f0 d) E dp.rgvarg = pokeVariant;; ~$ N( F e6 X! B8 b8 s
dp.cArgs = 3;0 p. [: a# w: j! @2 u( g$ K8 d
dp.rgdispidNamedArgs = NULL;6 L* Y/ @6 V: P$ Z6 O
dp.cNamedArgs = 0;/ }7 c) S6 ~3 x- {4 q
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// Call IDispatch::Invoke()! L0 Q2 O/ J0 b2 [1 {
% v# Y$ ], v4 w) M& k hr = m_pDisp->Invoke(# T6 {; Z8 B1 @8 S/ T# Z' I7 ?$ D
pokeID, # h/ ?8 D9 x. O IID_NULL, 0 X7 m ~; p: p LOCALE_SYSTEM_DEFAULT,$ M, v. G- B; ?6 m+ d9 z; [, c
DISPATCH_METHOD,8 P9 \- l- i/ b) f' G8 s( Z
&dp," Z- P* b; u3 m& b
NULL, / f* {! L0 Q9 |5 h4 G; a &ei, : ^2 [4 [& U; M9 ? &uiErr);$ n- K- r8 W) i
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SysFreeString(topicStr);+ b% \$ n Y$ y2 o
SysFreeString(itemStr);5 k9 I4 `3 k' `/ D+ ~8 E2 Q" R; Z7 K
SysFreeString(valueStr);2 a4 _5 L: S" E! {! X: l8 E
8 F5 N/ k! [$ {/ Y; l( t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？？？ # O1 O$ j, h9 a8 _& |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？？？？ 8 z/ P: N! v! B4 y2 @ 0 D$ T$ v7 M& l4 O2 e3 R% w! Q3 k" f" E3 Y
2.这是request的程序 0 R& ?4 H: }7 R% q( S// Request a value from Extend ; c- e4 J ?7 h1 @6 V% r0 \/ V//" ]8 ]5 X3 I( E/ S# C" Y$ P: l
// Initialize the variant that will hold the BSTR. Set the variant's 2 j7 f, K/ J3 j$ l$ s% R, S/ p// type flag to indicate the fact that this variant holds a BSTR. Place the9 Q5 m- c8 D2 a1 u- I9 ~
// BSTR into the variant structure.- L# ~0 x9 U/ e" G5 ~. ^
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);( J! ^; C. {5 T$ s* E) g$ o
3 j4 o( L$ F1 x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- t$ O- w) @2 \' p5 @6 P) @& E$ a
VariantInit(&requestVariant[0]); 7 b. M$ n) }2 O2 L5 d, r requestVariant[0].vt = VT_BSTR;& C8 b+ X' t* A3 @0 b
requestVariant[0].bstrVal = itemStr; # v$ H8 F3 M+ u) K3 B+ Q W# {( G+ k4 r8 a* V! v# h- g topicStr = SysAllocString((WCHAR *) L"system"); / S4 A+ D+ |6 [! }, I VariantInit(&requestVariant[1]); 3 M: I- L) W; i* p/ Y! o
requestVariant[1].vt = VT_BSTR;9 i' k* M4 I3 k; g4 M
requestVariant[1].bstrVal = topicStr;3 }. e2 N" e$ u+ R
, z( \8 m" ?& c, D8 o// Set the DISPPARAMS structure that holds the variant. 1 c Z2 i% I) ^0 c) D! T4 q7 {/ }3 g4 B+ f. r8 o* H, M
dp2.rgvarg = requestVariant;& L2 _0 D/ l& H
dp2.cArgs = 2; 1 K- a3 K6 t! @2 I7 x, V dp2.rgdispidNamedArgs = NULL;" g+ H# T% N$ o' q _0 B1 Z( [. J
dp2.cNamedArgs = 0; . v8 N( `5 M, o3 B; g& ^! ]7 F8 g3 c6 j3 n ?
var.vt = VT_EMPTY; ) E% K T* ]7 W' G8 ?% F6 p' C ' Y. g9 d/ i& v& Q3 H6 F// Call IDispatch::Invoke() ! G/ T8 U7 K5 x; ]; K & C9 S! _' c1 ? hr = m_pDisp->Invoke( 7 L n5 V0 Y a; f/ C. O requestID, 8 {0 t: Z$ C1 r1 E( u IID_NULL, / p3 _$ ] z9 @1 p( @# B LOCALE_SYSTEM_DEFAULT, 4 @: l* B) q" x" X DISPATCH_METHOD,( k/ t" T& H% [ H
&dp2,6 g, {8 }9 U( J# n2 i8 E8 M5 H
&var,7 T7 U O. v! C5 p
&ei, / f w, @7 W& O9 r4 M &uiErr);% l7 l* u' H: W( j5 q9 k8 k
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SysFreeString(topicStr);7 |8 t5 d/ U g; L1 c0 v/ a
SysFreeString(itemStr);" a9 E2 i1 u- r- \% l
请问该程序是获得extend里面的哪个值？ ! E# c) U$ A# {6 b0 w3 D9 u9 L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？？？？
发表于 2008-11-25 19:37:03
