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: u( p9 h2 h! L8 G( p' M" U
Name = (WCHAR *) L"Poke"; 0 m9 Z$ C# ^$ v- U, E ' B7 `. q% Z# B4 R4 _
hr = m_pDisp->GetIDsOfNames ( 3 F/ k' h2 ~- C. p2 i0 Q) ` c IID_NULL, // reserved, i- Q' u( B( F4 b; J# o% e: `
&Name, // Array of names to get IDs for 4 ]" L: s' l M7 G5 t 1, // # of names in the array , E3 \8 I M5 Z' s7 [- z' k. w LOCALE_SYSTEM_DEFAULT, // System locale6 X+ U v$ c4 |- p; h
&pokeID); // Array of IDs to fill on output & r e) ?0 l8 @ $ e% G/ |( @/ X( t5 G" ]: X if (hr)- t3 y. C# V3 u, l3 I( F2 e i
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MessageBox ("Get Poke Unsuccessful"); 2 U8 v! V5 x& U2 k8 ? return;# S. K1 {/ p1 }9 Y0 B) Y: }* _: n
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/**************************传递数据给extend**************************************/ / d2 f0 U4 [0 i V- z pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ u" W* }: a. D+ B' P \9 g
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valueStr = SysAllocString((WCHAR *) L"1232"); / T' B9 g9 a# k6 o# d" x( J VariantInit(&pokeVariant[0]); 3 v' O' z7 }" I! ` pokeVariant[0].vt = VT_BSTR;% X5 V- ]. }' r
pokeVariant[0].bstrVal = valueStr;( J& ` p; _9 G# h
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 f% `! e+ i, \
VariantInit(&pokeVariant[1]); 6 n7 }# g c" E; X
pokeVariant[1].vt = VT_BSTR; : M3 J* j) V2 s* q" |5 d F pokeVariant[1].bstrVal = itemStr;$ G" u4 |8 }+ H5 _/ p V
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topicStr = SysAllocString((WCHAR *) L"system"); % Y- c9 S* D+ \# | VariantInit(&pokeVariant[2]); 7 `# V: ?+ l" N- [
pokeVariant[2].vt = VT_BSTR;% r5 r; ~$ ^$ Q, {' Q
pokeVariant[2].bstrVal = topicStr; 8 Y' V4 `9 Q @! R, O% f6 v- j0 H* n/ D2 Q. c! p5 X
// Set the DISPPARAMS structure that holds the variant. ) a. i& v' R6 ~, v c' Y' j& B' L7 o( Y
dp.rgvarg = pokeVariant;; Y1 B- O" }2 W" S7 Q
dp.cArgs = 3;; i1 l. R, [$ I' R3 ?
dp.rgdispidNamedArgs = NULL;, k% ]! N. o0 d# k6 L
dp.cNamedArgs = 0; 0 Y* c& s X( p/ x6 R5 ] `: W- P 5 l# ~9 o' a2 Q- B6 h// Call IDispatch::Invoke()0 D1 E( t# u* [" t
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hr = m_pDisp->Invoke( & }* [- c" Q' L9 ^6 ] pokeID, 3 A1 J# A. C( P IID_NULL, : E+ J, o$ c9 D6 ], T! o LOCALE_SYSTEM_DEFAULT,' e+ K& l- F: l$ g. w l" s- e, k' A
DISPATCH_METHOD,! s# @4 g; Y6 ^& c
&dp,5 [8 p9 b3 l( f* u, A5 `
NULL, 6 k0 H" P5 t6 X0 b& V8 U$ B &ei, . V' p& |( q: `- F8 J &uiErr);% {0 P; D' I$ s7 h: X
1 Z% {# c! y9 N SysFreeString(topicStr);# z2 R* Y9 @; {
SysFreeString(itemStr); & N' q' \8 ~0 c6 {& k SysFreeString(valueStr); , B6 r3 ~. F& X - _4 v- D! n+ x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???; E3 v. R4 ~' ?4 d+ D4 n6 p; z
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???? n* r" `/ ]5 I: a; \9 t; N" a5 h1 m, h( Q) V+ R
9 ]* N0 z. a# I2.这是request的程序 % Z3 d$ p; G. X$ |- T// Request a value from Extend4 z# k) O1 Q0 x E3 ~; Y
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// Initialize the variant that will hold the BSTR. Set the variant's 0 B) K) k3 p: x// type flag to indicate the fact that this variant holds a BSTR. Place the8 d& v) `: ? Q p9 K) G% s( C
// BSTR into the variant structure.7 F! i+ J: A/ l' `2 x2 p6 ^* u
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* O9 F( m6 S* ]9 c! D# @ Q