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 H1 o& C% S6 S6 i7 DName = (WCHAR *) L"Poke"; 8 V0 c/ }+ Z2 H2 U! i 7 E; P; r. D$ Z9 ]$ c* n. w- x hr = m_pDisp->GetIDsOfNames ( " |4 ? \3 R& m0 ] IID_NULL, // reserved5 P8 N! }! V3 e; u/ Q
&Name, // Array of names to get IDs for 7 x0 r( z3 B1 a- x: ?. A 1, // # of names in the array- @" p0 C0 f* z& h' y4 u) H
LOCALE_SYSTEM_DEFAULT, // System locale ! H. d8 p1 n# o7 n &pokeID); // Array of IDs to fill on output: J. m5 W' T, `7 _. `" D
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if (hr)1 {7 }+ u a/ L$ z- N/ V
{ $ v) C$ N. a+ x1 B MessageBox ("Get Poke Unsuccessful"); / d* S$ d9 Z* {' |# {- s return;9 D+ z$ E1 S f# ^! d* W
} 6 b. u6 O1 i$ p. L( w b! n- y. d( L- o
/**************************传递数据给extend**************************************/* Z9 Z# U0 q' T! g$ _
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* ]& i& M: s8 \. C) y, t
0 K/ Q7 l5 N: b; R valueStr = SysAllocString((WCHAR *) L"1232");) V* Y- @3 h% j4 k6 z7 d0 ?: n. N
VariantInit(&pokeVariant[0]); ( O4 Q# D s6 }/ U8 k
pokeVariant[0].vt = VT_BSTR; " z! t! R# K' M+ z4 x pokeVariant[0].bstrVal = valueStr;# @) G. W) N6 K+ R2 e3 Z4 L
# a [" F; w0 r) h. R% b
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 [1 T2 S, I- D* Y: v) ]
VariantInit(&pokeVariant[1]); ; N6 _9 t! L- t pokeVariant[1].vt = VT_BSTR; M4 k( s6 f( D0 v
pokeVariant[1].bstrVal = itemStr; ) G2 a; D' g4 J, o. N. F& Z# m( W+ h9 H6 }+ ?! c: e" F
topicStr = SysAllocString((WCHAR *) L"system");4 Z2 a8 K, p# L1 i! D- j
VariantInit(&pokeVariant[2]); ( t& D. P2 l0 ]; i
pokeVariant[2].vt = VT_BSTR;& M D# X/ x& B+ w
pokeVariant[2].bstrVal = topicStr;* `. V; @9 X9 X4 F7 H
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// Set the DISPPARAMS structure that holds the variant. . K( f, L- L$ {; Z# O p; S5 ` + U1 Z4 ^2 c( n# u m dp.rgvarg = pokeVariant; ' a% j7 J3 k( o/ i: w: \ dp.cArgs = 3;2 X# E. e9 s5 [( L. ], D
dp.rgdispidNamedArgs = NULL;! R0 Y9 \8 C+ B; O h1 e# q
dp.cNamedArgs = 0;6 q& m$ o8 W* x6 W7 U
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// Call IDispatch::Invoke() 9 g: ~1 G* J! s+ a$ H, Q, i1 f; ]0 q
hr = m_pDisp->Invoke( ) a8 `8 Z& F$ t3 ~6 J/ @* \ pokeID,4 k3 I, Y" `/ E( m
IID_NULL, `5 @3 F. G% ]7 b# V
LOCALE_SYSTEM_DEFAULT,, D3 l; c, M2 w
DISPATCH_METHOD,. l% B/ W& z; X
&dp,& \4 x, R2 A! z
NULL, 6 X8 x( e1 e5 v( c& L &ei, 5 X3 |6 L' P0 k) E { &uiErr);4 d( ]7 j; C7 k4 L8 F9 [* A
! p3 e: J0 }: u$ h SysFreeString(topicStr);! j/ H, l/ y& W
SysFreeString(itemStr);, D" G. A* J; {
SysFreeString(valueStr); + ~' M. Q! n L1 y( [5 I5 K. f , P4 ^8 a2 j# V9 x# I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???0 M4 ] G% U, D3 A7 ^; {
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???? , D9 V6 ]9 e: O7 Z( G , A$ t. L8 B+ X ' R% S1 k- E; D' O3 X7 {4 ]2.这是request的程序 2 I8 l( C4 S6 a; R4 c5 ^6 g/ D// Request a value from Extend7 t; U( {+ |: j, a1 G" h
// 5 ~( y9 r+ ?! r" u, q ]// Initialize the variant that will hold the BSTR. Set the variant's ! T2 a5 d; |" V) m* K- {// type flag to indicate the fact that this variant holds a BSTR. Place the& G% g3 H( {, o6 ?8 U( t( {/ ?9 o/ [
// BSTR into the variant structure.) P7 j3 u$ V; [( c" [3 Y
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' U# S) u( u( W- |( s2 v" z