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:# x# _ ?" f$ K
Name = (WCHAR *) L"Poke"; ( m9 |. ^0 {" K- y+ ] 0 e1 o* ]( u K6 r& ^$ {' ?/ R
hr = m_pDisp->GetIDsOfNames (: f% D9 v: q- X+ X! I
IID_NULL, // reserved , p e5 b. q8 T' U9 Z9 ? &Name, // Array of names to get IDs for" K0 W9 ]1 e/ I8 J: E: W$ ^8 e
1, // # of names in the array( R q5 ^8 \% F; s2 z+ \
LOCALE_SYSTEM_DEFAULT, // System locale+ U; C8 k! T8 ^: e! X F1 @ `$ O
&pokeID); // Array of IDs to fill on output; {- p" O% Q& T0 @. N' ]
+ T6 q3 A( v2 l8 u, `3 @
if (hr)& D3 _4 K9 r J7 ]; q+ O
{ * f% p4 [ B1 u# I8 r+ C MessageBox ("Get Poke Unsuccessful");) b+ l! S/ y7 Y+ b- N' I* S
return; t; g, ]$ n7 b! X+ S6 |2 n }" H' k6 O& u9 C; |0 R4 ^
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/**************************传递数据给extend**************************************/3 k$ t; w! r$ [, c; J0 o
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 6 L8 E' R4 s0 E) \ ( m3 Z, a4 K x% p |& J0 U valueStr = SysAllocString((WCHAR *) L"1232");) m$ L; ~) n, x. {0 G
VariantInit(&pokeVariant[0]); ( V8 J1 L# x* k6 M/ L+ V+ q- }( j+ ^ pokeVariant[0].vt = VT_BSTR;, E H/ j& ?, u1 o5 \2 d+ U" Y3 T
pokeVariant[0].bstrVal = valueStr;5 p( z% P2 | g g$ m/ u
; u' ]2 S- G9 C$ S
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 z+ F; F5 [% Z& M& k) f5 Y VariantInit(&pokeVariant[1]); 1 i. C' p* j+ t0 s
pokeVariant[1].vt = VT_BSTR;& E: a4 @" y: d/ ]3 }
pokeVariant[1].bstrVal = itemStr; / E/ ]; z" i1 q/ ?2 @# b & ?6 J2 f& t% Q# Z7 I topicStr = SysAllocString((WCHAR *) L"system"); . R5 n5 A/ [. I8 T3 m VariantInit(&pokeVariant[2]); / K) G* `" W& X1 ^
pokeVariant[2].vt = VT_BSTR;2 q+ }$ Y) K c* X3 y
pokeVariant[2].bstrVal = topicStr;! @7 }5 ~) S! K; d
P5 s! l7 b) e: W- N( S// Set the DISPPARAMS structure that holds the variant.2 d, x5 D4 w+ o$ }1 p
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dp.rgvarg = pokeVariant; 8 l" ?% [: N& h+ q+ V( j dp.cArgs = 3;/ ?+ ^" P C! e2 t8 ?4 u/ Q
dp.rgdispidNamedArgs = NULL; - X; W$ I1 P/ k, d4 t8 S dp.cNamedArgs = 0; ! C- ~( w) u. D8 G ( T% B) T7 H$ v4 D! l) N// Call IDispatch::Invoke()3 \8 E. }" M3 ]3 c
- o3 z {" v4 t hr = m_pDisp->Invoke(' \. i- x1 r7 D/ e# q! V. a2 w, {
pokeID,6 W( @& |: T. g. G- \5 X
IID_NULL,5 x0 |, T/ {) l2 [+ u3 l/ Y5 ?! w
LOCALE_SYSTEM_DEFAULT,' z* _# J* Y# M
DISPATCH_METHOD, & t6 Z, P9 e8 y& J6 E" P$ c &dp,+ E1 J. p& n6 z
NULL, & Y$ K& w p5 v% E- L &ei,% ?/ a% l, ~0 Y8 I% A3 s
&uiErr); H: j1 |" n9 `, r
+ f0 m+ c) t o SysFreeString(topicStr);( g( w9 l" w* C- c
SysFreeString(itemStr);9 M; L* I' M$ c! |. n9 V: \
SysFreeString(valueStr);3 w: ^3 R p2 g9 D5 h
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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??? D; f( |0 j' F* T1 X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???? 5 H: r0 Z/ `9 h- I ( F% ]9 ^7 ]/ u6 H* Z " ^: E6 _8 Q' G7 S2 ~7 D8 W ~2.这是request的程序0 S% g: M' g, q5 k) ?0 C
// Request a value from Extend! C$ B9 Z H- S7 [' q
// . e% T( m5 b. W) o7 T// Initialize the variant that will hold the BSTR. Set the variant's3 j; G- T8 S1 m/ w3 s7 J* i: a
// type flag to indicate the fact that this variant holds a BSTR. Place the4 W) W9 v) P3 U& W I0 W! E
// BSTR into the variant structure. . V( B9 l+ v; [$ [. m" L- o- p( n2 ^* g$ `. @6 @* e
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ i, R+ i$ L3 q+ ?# V
" S2 ~- p& v+ [! s$ q
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" U$ Z5 {# v8 `( a
VariantInit(&requestVariant[0]); " ]/ u. k3 L# k) s! n5 L! C requestVariant[0].vt = VT_BSTR; 0 t. v; ]0 c- V; B+ X8 C) `) r requestVariant[0].bstrVal = itemStr;1 o; J" h3 d1 W# J) u* {
J+ a+ A( U# C+ n! a% ]: e5 ^ topicStr = SysAllocString((WCHAR *) L"system");4 C: n8 f1 G( a, i/ t
VariantInit(&requestVariant[1]); . }6 B: Z9 L; H- X- A& }/ G
requestVariant[1].vt = VT_BSTR; 6 D5 X# A! z* I- t requestVariant[1].bstrVal = topicStr;6 n. [6 U# c3 _3 T' h+ w- l; `; P4 E
, ~. e) E5 \( r: P( h// Set the DISPPARAMS structure that holds the variant. * a1 }) @3 B+ w. o+ V/ K ; Q- [8 q I- Y5 M+ @ dp2.rgvarg = requestVariant; ; m4 o: q, s( @ dp2.cArgs = 2; / O6 e* O9 j( G. m5 q5 i: T dp2.rgdispidNamedArgs = NULL;. ?: U, E! z2 Q
dp2.cNamedArgs = 0; " U' c @; _$ ?5 R5 f9 e& @4 E% l2 B. R) [- E8 b S6 }/ Z
var.vt = VT_EMPTY;" Z& L8 B; J$ ?. i" h
2 K6 ~. \; a$ }2 b. |
// Call IDispatch::Invoke() " D8 m3 ?2 o. O: Q 2 g# x" N( v, a* l3 j* t hr = m_pDisp->Invoke(7 x% q2 n3 q0 U8 @9 J9 ^7 h, ~
requestID, 8 O. _& o. p% b& y! o: u IID_NULL,3 |7 [7 M/ O* J% i8 y# }. B! s
LOCALE_SYSTEM_DEFAULT, ' S$ t5 ~% l4 a; H& A- u+ P4 v) A6 I DISPATCH_METHOD,, Z) M+ T6 @, L9 ~3 K& i
&dp2,6 L$ Y& ?0 M7 A6 [# P2 Z
&var,, x* R. O# _! f) c+ i1 Q
&ei,& Z; b. h+ O$ V0 |* X( J9 ~
&uiErr);6 d5 Q$ y6 p( y$ z
" |6 K5 z3 I5 ^- l1 a9 u
SysFreeString(topicStr);3 s3 A) @# x- ^5 ]( o' t
SysFreeString(itemStr); 2 P0 w2 L* O. { U; r请问该程序是获得extend里面的哪个值? ' b( z2 l. S& } \3 J: v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????