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:6 b- x, x. { K' b; W
Name = (WCHAR *) L"Poke";2 l" y- A+ Y; t
- p* O x3 N R j hr = m_pDisp->GetIDsOfNames (% \1 @% G& F5 |- K3 @: U. ]8 H
IID_NULL, // reserved, B# Z5 O) `) ]
&Name, // Array of names to get IDs for ! K; ~# t2 c* g# V h, ~+ O! s 1, // # of names in the array' Q+ B! F4 Z* p; F- n) F
LOCALE_SYSTEM_DEFAULT, // System locale + Y* K6 k' ]9 ?7 K; h8 l+ U &pokeID); // Array of IDs to fill on output 6 [( e# a) g9 O" L# R2 b 3 t9 m Q+ Y6 o if (hr)3 F# L1 S; y8 R. R( L8 h/ Y) o
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MessageBox ("Get Poke Unsuccessful"); ; H/ M. y" n9 O; M. g" X' t return;* D6 o0 c7 [! ^. t
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/**************************传递数据给extend**************************************/ 9 l! J. s& J5 C) n pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 6 ?9 x9 O, ?( s$ R ~ ( Q6 a) ?1 ]$ w9 b7 [3 G7 C3 w9 k
valueStr = SysAllocString((WCHAR *) L"1232"); ) [$ O0 n* }1 j$ r+ n+ } VariantInit(&pokeVariant[0]); . r3 t& P- Z0 W& {: I7 M: X pokeVariant[0].vt = VT_BSTR; . T g3 {7 _+ o) }3 e$ h pokeVariant[0].bstrVal = valueStr;5 j) ~( a6 z6 ` c- W) r' F
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! Y& T6 @2 V# U2 l3 Q1 I VariantInit(&pokeVariant[1]); * _8 ~6 C" W" B8 Q pokeVariant[1].vt = VT_BSTR; p1 u5 l: _9 K' g1 \4 t pokeVariant[1].bstrVal = itemStr;5 W7 Z$ ~+ U9 l
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topicStr = SysAllocString((WCHAR *) L"system");4 i4 z: U" A+ {7 k5 \
VariantInit(&pokeVariant[2]); 9 C: G% Z8 W# O5 v: w pokeVariant[2].vt = VT_BSTR;$ W1 X2 L1 d' f) w. O& P0 q
pokeVariant[2].bstrVal = topicStr; * Z1 Q+ }5 O) O5 m% D 1 J1 j1 a% ?. k+ T8 w! {5 D// Set the DISPPARAMS structure that holds the variant. h$ N- t' N7 y 1 M( L U$ |, l( |6 U- g dp.rgvarg = pokeVariant; ; P2 h" Z+ X# [( q, l/ m dp.cArgs = 3;" j3 k; R5 N' m6 S* h# g9 k6 T
dp.rgdispidNamedArgs = NULL;: F$ D# i8 H9 E, s
dp.cNamedArgs = 0; ( K# C0 f p# S/ I. a/ F( v6 _, J @) Z% T- ?& `/ L& w! Y// Call IDispatch::Invoke()) d6 Y' J' ^1 A( e5 L
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hr = m_pDisp->Invoke( , C5 S4 S4 \ l' j pokeID,( W/ A T- Y9 l4 q
IID_NULL, ( a" A" q- U! r' @ LOCALE_SYSTEM_DEFAULT, # U. E) e3 _& \* n3 n2 x: e4 y DISPATCH_METHOD,6 G. r( R! {8 P0 o1 H! c) O
&dp,8 I4 e2 e) [0 P% j z j
NULL, 8 D4 q3 I5 g+ O/ h; ]7 a &ei,# h; H0 ]! a5 t' }2 }1 ~4 q- Y
&uiErr); - B0 A9 O3 N0 L* X" R2 i' v$ ?7 A8 {$ p C5 q2 F. @
SysFreeString(topicStr);) i1 g9 p4 q' `2 O; b+ s
SysFreeString(itemStr);6 x [$ W! S, L* Q6 v9 g3 Z
SysFreeString(valueStr); ! r, q. @( M) M2 j% ] l5 ^: q; ~. m
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 b5 M, e3 p& }2 r: R, G- P3 r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????2 Y# W6 I# l1 e0 J* M4 F5 Q" d3 W
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2.这是request的程序 ! A* r9 e2 D- L- ~& U- D! _+ \// Request a value from Extend 1 ]" r& Y O6 O2 M* u// 8 }6 F( P/ [& @% `4 K3 W; H( X: g// Initialize the variant that will hold the BSTR. Set the variant's! l, o2 u+ z; I$ J+ e# t, G6 @" Z. e
// type flag to indicate the fact that this variant holds a BSTR. Place the / ?3 K$ T/ c# ?# t// BSTR into the variant structure. 9 W- B& Z* }5 x( x& ?( ] " z0 e4 D! h) _7 X4 f requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* n5 v, X5 K/ m d7 a: Y
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' O% }/ a! O2 z9 n1 b* M/ R6 U- r6 Z
VariantInit(&requestVariant[0]); . h9 }: b& H# x2 h _2 R) S
requestVariant[0].vt = VT_BSTR; / L) Q% L8 ^4 u requestVariant[0].bstrVal = itemStr;0 @2 S* c2 H) C. ^
8 R8 k- @* Y K* H" ]7 \9 g( z topicStr = SysAllocString((WCHAR *) L"system"); - K0 C* Z$ T7 ?9 a5 L VariantInit(&requestVariant[1]); ' r2 O, h" d' d0 ^) t+ l requestVariant[1].vt = VT_BSTR; / ]: D# r6 [# }) I5 b requestVariant[1].bstrVal = topicStr; 0 ]7 R" W3 ?* S) s' |7 g" R$ i; B3 b/ ~; {$ w
// Set the DISPPARAMS structure that holds the variant. 4 G `/ ~, {& D# `* s ) h" P1 W$ r q: q dp2.rgvarg = requestVariant; 0 X& T2 ]0 w* V @5 q! D; ~ dp2.cArgs = 2; , q+ p" }) j I% d& }' @/ I) ` dp2.rgdispidNamedArgs = NULL; : N4 K. O9 E& v- b dp2.cNamedArgs = 0; ) G) q# ~- E9 n7 J% o) n - ]) v- k% x8 P- S, R1 ] var.vt = VT_EMPTY;9 Y& e- F9 {% F% c& P
0 S% U( Z; M, Z! k$ c$ u9 Z// Call IDispatch::Invoke()5 e9 j7 d K) u/ n* h+ X
7 N3 D* x8 f! v+ e hr = m_pDisp->Invoke( ! X) c& e# N1 u r: j+ u8 K requestID, 6 S; y: M, i$ b/ L$ B5 Z c" i8 f: X IID_NULL,1 G: W6 r5 ?, _( O! B/ z+ u2 J" I0 X
LOCALE_SYSTEM_DEFAULT,1 H1 ~/ r* F5 X8 F
DISPATCH_METHOD, 3 t+ A( R; L: v& A: z9 u$ r& @$ M" S &dp2, 0 P7 F- k0 g! f &var, 2 f4 D% j: y- t2 ]& W7 d4 Y- \ &ei, 3 T2 M: L1 n$ C2 ~& J &uiErr);. L0 E4 B9 a( M" l# d