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: 7 q7 t' r$ G9 b; m8 Q" i3 wName = (WCHAR *) L"Poke"; & B, V7 e- r3 R, F$ e" A* N6 E 9 u% T5 B8 H& p; P: Y hr = m_pDisp->GetIDsOfNames ( $ W" a( `7 N5 _ IID_NULL, // reserved . Q* t& @9 n3 C: ?; _" z &Name, // Array of names to get IDs for1 M. s9 Q2 G9 w: f! e
1, // # of names in the array 7 c0 |! W* o: e8 A; g LOCALE_SYSTEM_DEFAULT, // System locale5 [2 z1 ?/ w9 e( T
&pokeID); // Array of IDs to fill on output - R) K V! m; V9 u , P: O7 b, V3 R* H* r3 u2 p% h6 ^
if (hr) " o! Z G# f* ?$ ~( q {* H0 v) _, w6 S+ ?: M' n1 @- Z
MessageBox ("Get Poke Unsuccessful");: W T" w& t! U# [/ u& a
return; 3 b0 I9 C2 { x$ D& G# c- b( D( f } 7 B- _6 K# l2 b: B6 i U# g8 g; ]; X, P9 r$ ^- n
/**************************传递数据给extend**************************************/ ' b1 @! R& u$ t- z! O+ } pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ J/ L) R( n0 X9 X* u4 e$ H
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valueStr = SysAllocString((WCHAR *) L"1232"); O3 X7 Z) W- D3 Q VariantInit(&pokeVariant[0]); / o: \$ Z) G: B# a! ]
pokeVariant[0].vt = VT_BSTR;# P* m7 u$ ] c. E$ {
pokeVariant[0].bstrVal = valueStr;5 _3 r! t f0 \! a+ T9 J
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # p- I, O. S$ f5 p VariantInit(&pokeVariant[1]); 0 G/ M6 f, W Q pokeVariant[1].vt = VT_BSTR; / C* h! T- e! X pokeVariant[1].bstrVal = itemStr;: A1 @0 C' _- @' ]
4 w. [0 o6 W4 M; s0 j2 e% j topicStr = SysAllocString((WCHAR *) L"system");- C, t5 k: E# {4 E
VariantInit(&pokeVariant[2]); 8 b4 g. h4 J' @, x1 N4 x% r pokeVariant[2].vt = VT_BSTR; s) n" e/ _) }% y4 @* t& T; `
pokeVariant[2].bstrVal = topicStr;, L5 M& D1 [( j# T# r
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// Set the DISPPARAMS structure that holds the variant. ) b0 C# R, D# L7 j! F8 G1 U6 a , b: s( H+ c& v( x. _8 ? dp.rgvarg = pokeVariant;, x& u. w8 D$ }+ |6 i- q( X
dp.cArgs = 3;& I4 n w/ W7 P
dp.rgdispidNamedArgs = NULL;; O5 J: _9 A5 v. q* ~9 y% [9 M% S0 X
dp.cNamedArgs = 0;: s9 Q. Z6 g6 \5 C1 h) v
2 ]: M9 c; A& S; P% }9 j- a// Call IDispatch::Invoke() + e; y% W0 O/ o) l9 a% g 9 z- |% v4 V# O1 U; X+ {2 M hr = m_pDisp->Invoke( ! y: ?* i4 C* P- q# V3 @ pokeID,! Y6 [* \6 l5 Q7 O$ F
IID_NULL,* H. l* a1 s! l4 p% w+ l
LOCALE_SYSTEM_DEFAULT, + n/ `0 I2 M8 N$ A& j3 w. G DISPATCH_METHOD,5 v% `& Z5 m( ^' O" s! J) l( s
&dp,, t8 `1 ^5 I9 ?2 A
NULL,* B* {/ R( B! J& t4 L3 E
&ei,, V& Y2 x. C: _/ N' r) a9 d
&uiErr);% { P) ]9 `5 G. i: s
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SysFreeString(topicStr); 8 k/ [7 `4 p$ M" R( m SysFreeString(itemStr);' g! g& ~5 E1 Q% y+ h" [' `5 e
SysFreeString(valueStr); ) A' J" n2 ?/ W& M) i& E; [& E' c4 n; u
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???4 Y5 q; A4 h# k3 D) O0 t
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????1 I w9 A' ]! I" }6 x
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2.这是request的程序 & o. \$ x' `2 h5 K// Request a value from Extend* j+ S( d: @4 y
//# m* a2 {# C% G5 _6 O6 q: v
// Initialize the variant that will hold the BSTR. Set the variant's. i+ C% `( @! @1 a
// type flag to indicate the fact that this variant holds a BSTR. Place the & L! v; a5 r: X4 A3 b0 j// BSTR into the variant structure.; C+ q% B; z. N