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:0 a" n- C1 ~' g6 S! T# H. {3 N
Name = (WCHAR *) L"Poke";. e/ v. y9 w- w+ A6 u3 J# V
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hr = m_pDisp->GetIDsOfNames ( 7 M- @8 s% M. v2 E" i IID_NULL, // reserved . u6 ~7 l5 {" i# W9 Q. E &Name, // Array of names to get IDs for ) t# y- r* n& n$ ]0 w& G. F' ?# L8 K 1, // # of names in the array 2 a; h- D, z, y' N6 O LOCALE_SYSTEM_DEFAULT, // System locale . U: s9 ]3 q- H! k6 C- a: H) E" F &pokeID); // Array of IDs to fill on output! `" @5 z, o2 J: L1 t
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if (hr)4 x& y5 u: c( U. s& h* v1 H; L
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MessageBox ("Get Poke Unsuccessful");6 U( u! @, p; r: Z( @
return; 9 [+ i& l9 H4 h& Q* a }3 U; u. q, z6 n5 p. D: A, M
$ o5 u; K- i/ ]/**************************传递数据给extend**************************************/; D' n) P' B- o" j
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : \! e* e: F& _' v& n+ {8 p # u! N- a& V S0 z
valueStr = SysAllocString((WCHAR *) L"1232"); ( M. F( C6 d# a2 s' L) e7 v7 ~ VariantInit(&pokeVariant[0]); 7 C) ?% B# t h: \/ H
pokeVariant[0].vt = VT_BSTR;. H& r2 T x3 W1 {8 H ~
pokeVariant[0].bstrVal = valueStr; ( R. d( i8 i8 u Z! j: i4 Y$ E 5 R7 C4 R+ W. K: e itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ P, S" b6 g) n* F; _3 V
VariantInit(&pokeVariant[1]); ; L2 N* ]3 s" o a7 y( k' q
pokeVariant[1].vt = VT_BSTR; + Z: U6 \* N4 ~% G pokeVariant[1].bstrVal = itemStr; 4 d& {6 Z6 ^8 L& ^" k/ P) _: _1 A7 b
topicStr = SysAllocString((WCHAR *) L"system");) e: o1 ~9 e3 w- J1 I$ |
VariantInit(&pokeVariant[2]); 2 [7 R4 U* |% |/ S' \% y
pokeVariant[2].vt = VT_BSTR; . J) L) l6 q/ H6 Y2 e pokeVariant[2].bstrVal = topicStr; ! ?5 T1 L. t7 o( d& i. L1 T5 Z) l1 W# x6 a
// Set the DISPPARAMS structure that holds the variant. # ?7 r0 Y7 O3 O H. N: C( O6 g) `1 {6 B9 ]: ~) Y
dp.rgvarg = pokeVariant;( p2 [6 A1 E2 K
dp.cArgs = 3;0 i; m0 T( C( `2 j
dp.rgdispidNamedArgs = NULL;5 j9 Q# R% Y( d
dp.cNamedArgs = 0; ( T3 e1 n/ G, g , q3 p3 Q2 T' Y; p0 D// Call IDispatch::Invoke()% U7 F9 P7 t5 Z4 U
/ N( g2 w0 m, y7 n4 \ w# V hr = m_pDisp->Invoke( " P1 V8 v \+ p, ] U) v- n) v7 d pokeID, 3 x |2 }5 [0 M; D g IID_NULL,0 Q5 L+ s6 v; C
LOCALE_SYSTEM_DEFAULT,7 R R" O) h- k% H0 G: {
DISPATCH_METHOD,7 q0 W D3 g3 c6 r# s5 O
&dp,' N- q3 G# K3 p% u
NULL,6 Q) A0 v/ `9 a; ?: K* [9 e3 D
&ei, 8 j4 x9 q/ E* Y &uiErr); [! o3 \" X' g! C8 b- O7 C
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SysFreeString(topicStr); , K4 M9 @% P* H SysFreeString(itemStr);7 L- v1 a/ I, F# N" T' K) s
SysFreeString(valueStr); # `! X2 F7 l2 ~6 S E8 d( t : I; G* \+ k( t, e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??? . W/ O- ]) i- d! u0 o# r1 H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???? ( t# f8 a7 ]2 K5 z1 H8 m0 W5 h! e* J% _# p' _4 q
U3 f& k& h0 }4 I2.这是request的程序 6 }2 W" c7 Z* S1 w// Request a value from Extend5 S9 s' T5 Z- t
// * D5 R+ b6 q; U* U0 Z( C0 h M// Initialize the variant that will hold the BSTR. Set the variant's# F, G. {& q( J9 k: g/ T9 k3 e
// type flag to indicate the fact that this variant holds a BSTR. Place the7 Z- f4 {- r. |( a1 h( w
// BSTR into the variant structure.# u* }: V" R3 c
7 _" B5 ]9 o, _9 v6 _4 A requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 M/ \% R1 l* F l8 u