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:/ s8 d& y% w( Z
Name = (WCHAR *) L"Poke";- ^9 @, d9 h9 F9 P% P
c8 h$ B: _, f9 @9 ^$ y hr = m_pDisp->GetIDsOfNames ( % k4 E" Y) [. ~* n( Z IID_NULL, // reserved# B# W; A& u! z7 U
&Name, // Array of names to get IDs for 6 z* z- V/ A) d @: k0 x5 a" S p/ Y 1, // # of names in the array' q8 Q3 i/ d# \" q: s9 }' }2 `
LOCALE_SYSTEM_DEFAULT, // System locale; d% \7 n$ L$ R
&pokeID); // Array of IDs to fill on output+ n. H' o; Y8 ~* P# c# K- ?
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if (hr)8 C1 U. l; o C" c2 T( }
{ , A- {3 b( _9 _2 v. M MessageBox ("Get Poke Unsuccessful"); \# S. h3 K7 c4 E& c" S2 I$ I return;# i0 G- h8 d' J, ^( m- x
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/**************************传递数据给extend**************************************/$ M+ _' O4 x" {) R( E
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ b0 i6 l: R% q) J' A( T# o5 a
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valueStr = SysAllocString((WCHAR *) L"1232");7 u% J8 W# J% o$ f+ W o7 ^
VariantInit(&pokeVariant[0]); & H& }% W1 ~+ W8 n pokeVariant[0].vt = VT_BSTR;/ l" b* M5 n) A% D( [
pokeVariant[0].bstrVal = valueStr; . V0 d) |5 f; I& Q6 x9 G# K9 o8 E% Z# C2 H! }& l0 y3 T
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # v* m9 i, v0 m. z4 D" K VariantInit(&pokeVariant[1]); 4 D# }5 E8 S# T/ X: W- X pokeVariant[1].vt = VT_BSTR; - e! k/ T" G6 ?9 t" h0 P1 { pokeVariant[1].bstrVal = itemStr; 1 c( a, \/ l4 W4 v! L7 K( \% L " H* z/ Z9 t. x% j% I( |, Y topicStr = SysAllocString((WCHAR *) L"system");% T' [" w5 }7 {& ^6 s" M. c8 z
VariantInit(&pokeVariant[2]); / I; U! ^4 f. t! c& N, C [
pokeVariant[2].vt = VT_BSTR;& r; D' O) k9 W9 I* ^/ H+ b4 v8 I
pokeVariant[2].bstrVal = topicStr;. ~3 M1 h2 H0 R; ?* Q% Z
4 ]6 _* f9 E5 D6 M, j+ |, C5 y) y// Set the DISPPARAMS structure that holds the variant./ ^2 |/ o2 u- l) t
' y& J: w) ~" o+ C" m dp.rgvarg = pokeVariant; " Q8 l' L& {0 S# ] dp.cArgs = 3;: A( d/ i6 D; W2 k
dp.rgdispidNamedArgs = NULL; 2 x3 k$ G' i0 @5 C dp.cNamedArgs = 0;# |4 m1 \ y' G% a0 p
8 }8 D: E+ S7 v7 ?! m// Call IDispatch::Invoke()% q' r$ ]! z' z
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hr = m_pDisp->Invoke( y2 X+ V; o P5 R: {" q4 y4 A( x1 n pokeID, # s0 U/ W% @" E. Q IID_NULL, 9 v9 s4 }" p K5 a5 C# D. I( I LOCALE_SYSTEM_DEFAULT, 8 b; l7 k# j2 x$ v DISPATCH_METHOD, ) S3 c+ L4 m2 _1 K# x. t6 i ^) z &dp, " H& ~2 l, ^0 C NULL,4 y2 K: I6 K6 l( a0 m. b
&ei, * o# l& P' o! f5 g6 P; L d &uiErr); ; y! Z! s# p+ H3 ]% q! h E3 ?# P; B4 ^4 n6 j* S
SysFreeString(topicStr);" A+ y! z% x" r4 p/ t4 G
SysFreeString(itemStr); * t- f F( b* h( p' _. L0 Y$ x SysFreeString(valueStr);& B3 v" K0 V2 \: @6 r7 }
; ~5 I. s8 g! U+ [# r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???5 [2 h ~& p: p F( a
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????: w: ~+ g& B6 ]- y% o' X0 p* [$ X4 I3 z
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9 | S3 e' D" r- U+ K2.这是request的程序 : }& [! V4 _6 m; t( g// Request a value from Extend {5 |3 ~& G) J* T
// & O% f, [" r; W! y1 [; z// Initialize the variant that will hold the BSTR. Set the variant's. U+ t+ C6 r5 L( y& ^$ S4 n
// type flag to indicate the fact that this variant holds a BSTR. Place the. x0 S' ?* [6 _/ b- z
// BSTR into the variant structure.: w- x5 _ Z) h8 q