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： - {5 q: C/ i1 _; F2 r* n1 I! _Name = (WCHAR *) L"Poke"; - T! P9 B6 e) O, S( b , l# N2 _; S4 J. O
hr = m_pDisp->GetIDsOfNames (# L5 A! @, M7 f% r V
IID_NULL, // reserved ! Z" p: w& K7 }6 q) S &Name, // Array of names to get IDs for7 N* W' o2 |/ J/ t( g+ m" T/ s, f7 \
1, // # of names in the array2 D) Z; f, z7 d( [* P& c
LOCALE_SYSTEM_DEFAULT, // System locale1 u' ?$ @; l, d! ~
&pokeID); // Array of IDs to fill on output " ^& y7 y: i! Z! F. ?5 F $ | @& ]0 Z4 e3 A7 a( S
if (hr) , x! W _3 d7 f7 | {/ Y+ d/ R- E, ]! a8 b8 Q2 V0 K- n0 j
MessageBox ("Get Poke Unsuccessful"); & e( e7 d/ ^6 n/ r- y% D3 S% T return; ; A3 R; z! s/ U. ?. o }" B9 b1 T1 \9 x; t G
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/**************************传递数据给extend**************************************/ , x5 l4 {6 I1 ` M0 e0 W pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " p" s2 c5 S8 o6 G* k ) }" t2 s7 ]- c: m1 i s) I2 {' F9 i5 g valueStr = SysAllocString((WCHAR *) L"1232"); ! [- J* }) @5 @" o' R g( m, h VariantInit(&pokeVariant[0]); + e$ R. C5 s) ^% @) }) S$ x
pokeVariant[0].vt = VT_BSTR;& _ T, ] k) j9 ?; G# d" n. z* T% X
pokeVariant[0].bstrVal = valueStr;. e' N- ]7 }) z$ x5 Z& k( ?( J
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: [) Z! i+ w# J) S# { p
VariantInit(&pokeVariant[1]); ) D6 g% T( d {; \5 h u
pokeVariant[1].vt = VT_BSTR;7 N# T/ P( g0 [& Y+ w, ^+ _6 _
pokeVariant[1].bstrVal = itemStr; 7 R2 }, M0 c" D% y, s0 R9 ]" {# q
topicStr = SysAllocString((WCHAR *) L"system");1 z1 c3 P8 K. X$ w6 J: ]' T
VariantInit(&pokeVariant[2]); , G. r7 \8 i( j, u" j
pokeVariant[2].vt = VT_BSTR;8 ]6 @% v9 c# W4 ?1 _7 v- ?( {
pokeVariant[2].bstrVal = topicStr; ( D Q0 J* _' K3 s" M4 {; h" H' Z4 X" ~4 i3 ]
// Set the DISPPARAMS structure that holds the variant. . r k: F9 D/ R; m% M; x3 V * Y' k) S4 g9 e" n/ \ }5 o) ] dp.rgvarg = pokeVariant;, ? o! L& B. }3 a
dp.cArgs = 3; $ Q5 y+ M% Z3 w! h# O& T/ S dp.rgdispidNamedArgs = NULL;8 e P% S4 ~, z
dp.cNamedArgs = 0; 4 R7 G5 n7 [% F' h6 X; i2 ^$ o; u" o
// Call IDispatch::Invoke() 7 G9 J$ \7 @( A1 z% X! H$ G$ N* ~8 s' Z; w% p6 Y9 S0 [+ r @
hr = m_pDisp->Invoke(: }6 G& h" P+ d* z2 L8 G
pokeID, % u1 Q0 G d3 t& b& Q) j IID_NULL, I# a1 ?) x4 Z
LOCALE_SYSTEM_DEFAULT,7 @+ _7 K6 s; R" a L
DISPATCH_METHOD,! i4 K; s! h' _8 r
&dp, ) T+ A/ t6 o( N4 C1 B+ e( \ NULL, 3 o4 C+ R& d, M% P &ei,6 J7 ]& F% @6 f0 B
&uiErr); v- W H/ G+ j3 W
Z: [% \$ ]7 k+ ?6 o4 n) x
SysFreeString(topicStr);, |" M1 H9 L3 I* M) B
SysFreeString(itemStr);) L" p* L( v4 U6 O
SysFreeString(valueStr);! k, o! f$ J$ d
( ]' A& p5 t9 f& a$ k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* P. X. R% p3 z1 ~, z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？？？？ 3 o0 n7 b' E7 H: t) y# w6 r1 k* `/ |: Z
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2.这是request的程序* s: t' u7 F) N- G- B
// Request a value from Extend ( r: q% K. C3 C5 G5 C+ C//. b4 P; r$ I1 J% g4 Z8 q, Q4 I
// Initialize the variant that will hold the BSTR. Set the variant's 1 T3 e9 H) P% L5 i/ H) j1 n2 E// type flag to indicate the fact that this variant holds a BSTR. Place the 8 y6 f" I) a, H, V: c: B3 J// BSTR into the variant structure. 8 } z( p" I8 q6 Z; [& c: V, ? " ^5 ~2 i2 a1 F. |( }$ w% I1 g5 \ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);& T' _, S; |/ a, H, B
, M0 ^* K. n( j M; x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : ~# @" I3 k! ^% Q VariantInit(&requestVariant[0]); ; K; u( I' | e( Z b3 I requestVariant[0].vt = VT_BSTR;; [8 S& o6 U1 p9 Z
requestVariant[0].bstrVal = itemStr; M ~8 A- y( D; B4 ^
: N. j6 t5 M% e0 _, a topicStr = SysAllocString((WCHAR *) L"system");' X* ]) S' u) a7 l
VariantInit(&requestVariant[1]); ) J5 t; d4 K4 H$ g% Z requestVariant[1].vt = VT_BSTR; # u& |1 c) Z" @4 I# i; J4 D requestVariant[1].bstrVal = topicStr; , R: z% j9 Y8 G / Z8 P6 Q( k: f+ g8 v( r! o, I// Set the DISPPARAMS structure that holds the variant.2 @ d8 ^3 G% ~+ N" {" {+ ?7 F
# O; d+ R0 A* T7 A. h dp2.rgvarg = requestVariant; 4 f# U$ [4 w1 d% I dp2.cArgs = 2; a: A" a! r7 `; F1 i5 V. P) R0 C dp2.rgdispidNamedArgs = NULL; 7 H0 ?& D. Q' r- T2 [( U8 L7 y dp2.cNamedArgs = 0;# A Q' `1 ?" S z' c! h* h% I
, d; m c* n0 d' m var.vt = VT_EMPTY; f6 ?# o; G# U: i- K& v7 L% d/ z # R; N; M' y h% S( v// Call IDispatch::Invoke() 7 g0 L1 d$ l) v# _% W! v 5 I" j0 j/ z# ?4 G hr = m_pDisp->Invoke(6 ~# V8 `+ V0 d! d2 j: w
requestID, 7 V* [# w/ @) ]3 O; x X( V IID_NULL,9 f( `0 j/ T$ D1 ~
LOCALE_SYSTEM_DEFAULT, . P% Q# O% t% M, K( l0 Z5 Y DISPATCH_METHOD, 7 m" f) z! v& n! t3 N2 ~# S% F- o &dp2, 6 b' l$ A7 g" b5 f &var,3 U( b+ T: @0 f* ?/ Y! |" D4 y3 z
&ei,5 p( X% x# @* R# ]; }
&uiErr); - I' S1 {2 f2 y! Z% f0 @ # n/ k# v( M, \8 o" H* W0 \) i3 ` SysFreeString(topicStr);0 S+ B. W5 y! t/ z! B# X
SysFreeString(itemStr);# {5 c+ B4 ^8 {) P+ [4 Q
请问该程序是获得extend里面的哪个值？ - N6 k9 }" j+ a0 S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
