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:1 u6 T0 M& Y# Q: B) f& D
Name = (WCHAR *) L"Poke"; 2 X- u6 x9 @4 a; r- T+ @$ a$ M9 w ; u# D3 k7 ?$ k1 } hr = m_pDisp->GetIDsOfNames ( ?: ^& Z7 j/ h5 ~( s
IID_NULL, // reserved, I2 M' U8 D/ A7 A+ z: b
&Name, // Array of names to get IDs for ( E$ _4 S' e# r+ |$ ~& j 1, // # of names in the array ! f" J8 t2 I F5 ^7 u LOCALE_SYSTEM_DEFAULT, // System locale) c g @' p! m1 m
&pokeID); // Array of IDs to fill on output + n+ D/ H7 r" U8 B1 c & A- H( e# w2 v* m* ?4 x if (hr) ! |' u3 y! U% ^/ p' b' r) | {* j. J; w1 O* S/ T% M
MessageBox ("Get Poke Unsuccessful");+ o, M3 P8 C L1 B* l3 u
return; 1 D$ L$ s+ { e4 D7 f, t4 H } k( \3 k3 F$ \& I 5 T% q( M u( S7 p/**************************传递数据给extend**************************************/1 o3 @) F. Y* Z' y: f
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - L3 X1 R y+ I6 b' E$ m - ?$ m( Z4 v' ~4 d' ~) ? valueStr = SysAllocString((WCHAR *) L"1232"); . q2 |7 F0 _& W: q' r. E VariantInit(&pokeVariant[0]); , P. E0 y1 s& @) r& o
pokeVariant[0].vt = VT_BSTR; + b a5 y: Q& `7 O pokeVariant[0].bstrVal = valueStr;6 h5 t. B' d! ^6 T7 t
% J: Y; C/ ?9 p7 |) u# B4 j
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 V( f3 b5 s# l& N" \# L* j
VariantInit(&pokeVariant[1]); 1 D. g# F' v9 I9 g" s pokeVariant[1].vt = VT_BSTR; # J& f; Q/ r' A2 y% i pokeVariant[1].bstrVal = itemStr; 9 b$ [3 ~2 d$ D- O. I' `( v( x$ v( B% I$ _5 m8 w [. G9 Q0 q0 h
topicStr = SysAllocString((WCHAR *) L"system");2 u4 s l4 q9 U! {
VariantInit(&pokeVariant[2]); 3 T/ O U3 O3 N pokeVariant[2].vt = VT_BSTR; $ I/ s7 v- n6 f" z7 q" ] pokeVariant[2].bstrVal = topicStr;. l# @# A7 V$ A/ i2 N
( P, Z5 L, c3 p8 ^// Set the DISPPARAMS structure that holds the variant. % Y* b; I+ n: f1 O1 ^: w8 z K$ H. ^, p' R9 T! Y8 j: R
dp.rgvarg = pokeVariant; & W/ O4 Y# P w M/ f" z" K% Z dp.cArgs = 3; ! L! p: g- J }& O dp.rgdispidNamedArgs = NULL;9 ?; O$ F* q2 O' S7 z [0 y
dp.cNamedArgs = 0;( ]5 x1 r9 u0 M1 R" G) W
1 |' u. a/ @ r. F// Call IDispatch::Invoke()0 C# r( p, s7 e
- X$ y8 D8 ], C0 Z* ^2 O
hr = m_pDisp->Invoke( % b D7 L t8 k! L4 P pokeID, & _5 Z; i- i+ L! D, O* v IID_NULL, % Y4 C' r3 ?4 a- H, W2 ` LOCALE_SYSTEM_DEFAULT, : R) F/ ~( L; ?+ P @5 W, \) s DISPATCH_METHOD," t1 R3 R; W# t6 Q! [& R' j9 j
&dp,) x# N2 d5 x) }/ x* |
NULL, 8 c* K2 p5 P$ D: ~0 P4 F3 Z &ei, # {% U/ x' c# a( s8 ]2 l. c+ L &uiErr);. R/ }( D) S5 u+ d( E E7 F# U
1 _: _/ I9 `2 }2 y9 G2 P& S0 V$ P/ p SysFreeString(topicStr);) K8 T6 d" {: p8 v! {: I4 Q3 Z
SysFreeString(itemStr); w2 K! l7 j J( i SysFreeString(valueStr); : L7 L% @3 o9 ]3 O! v6 V( b, }; {# q ' k, W' o) d$ V" {: E, n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???, I! H, {- m3 T1 c: q; g
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???? 9 H* `- }. L* [! w6 K2 d/ y& B/ V( u 2 S$ w W$ p* Y3 V! {- D/ {1 E& o$ R- ~0 o: f& g4 @
2.这是request的程序' T) V f& h8 \3 R" e, l
// Request a value from Extend! O( E F: Z% `7 G7 s4 u
//& M( o" `* {, k2 q0 q# L
// Initialize the variant that will hold the BSTR. Set the variant's* u1 i. n/ Q# R
// type flag to indicate the fact that this variant holds a BSTR. Place the7 C, C( l0 `3 k! M) C+ d/ _, g, M
// BSTR into the variant structure.; a2 l8 l$ Y/ s; k, q8 f
$ m& ? f2 F( n0 D
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); # \" W( W8 W# \+ e M, c " L% t: Y; }* u; y: H3 K
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 d, R x X$ z9 O VariantInit(&requestVariant[0]); # L0 R4 k1 P$ a1 K1 N3 i K requestVariant[0].vt = VT_BSTR; + Y/ ]1 U6 j" i A/ n0 |% e requestVariant[0].bstrVal = itemStr; 5 P( \$ Q" @/ l5 [4 g8 q# m6 I! `% |0 u9 F; d) A* S
topicStr = SysAllocString((WCHAR *) L"system");3 Y- z: C! C" [! R! Z
VariantInit(&requestVariant[1]); , { z: D- L; F5 u requestVariant[1].vt = VT_BSTR; ~; ~% h2 \9 Q: u1 q requestVariant[1].bstrVal = topicStr;, o) n9 s/ ^$ W1 J
! P/ A$ u `# f- A9 d% i
// Set the DISPPARAMS structure that holds the variant.$ j/ o, ^# f1 T. d/ [
4 X# j) ~3 Q$ V2 a- B) l
dp2.rgvarg = requestVariant; 3 l' s! A5 B( C dp2.cArgs = 2;7 @$ R$ n, {7 o( E6 O1 x2 ~* M! q7 D
dp2.rgdispidNamedArgs = NULL; , P* Z) a8 H3 u# h* a dp2.cNamedArgs = 0;5 w) B! c) B) V8 _9 _
4 `9 v( m. t5 Z( o, p
var.vt = VT_EMPTY;3 }# ~6 y& H! f6 g5 J" u ~! ]
& t4 i+ D: t" [- A" S
// Call IDispatch::Invoke() ! n& L3 {3 u# k+ R ?7 Q) C+ v% z3 D( ^5 L
hr = m_pDisp->Invoke(8 `3 G# W# L1 V/ W
requestID, $ L' v# Y* s7 _: v( k IID_NULL, 8 U5 I6 G2 b# O" Q8 B LOCALE_SYSTEM_DEFAULT,; F& H4 i, C4 G3 D- v6 w2 N
DISPATCH_METHOD, % `# z5 a1 ?! g W8 I! b4 f1 @& p &dp2,* q; h7 b# f3 \- I
&var,8 t2 |* U! H# q
&ei,8 r6 W8 d+ M' a( r9 ^# ~
&uiErr); " \" {! B# V9 w+ t( B0 [! @4 b. L 4 w/ Q9 v5 V) k1 f: I; v6 h SysFreeString(topicStr);' ^! G$ b( `3 J7 x+ E# t& V8 x
SysFreeString(itemStr); ; W4 E) @5 F9 W- n$ |! D) `请问该程序是获得extend里面的哪个值? 0 C" `' s [8 N! r) S. f; T( G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????