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:2 `: @* Y& S+ c: e% ~8 l
Name = (WCHAR *) L"Poke"; - B, G# t' y+ ]; @: }& z ; g5 n* _" o7 b' |7 A* U/ J8 U hr = m_pDisp->GetIDsOfNames ( 3 \, ?6 l% m5 h" C6 I IID_NULL, // reserved / [9 O" f" T0 Y+ E &Name, // Array of names to get IDs for / D' j8 P+ L; Z- ^ 1, // # of names in the array # o4 U# ?. I8 C5 I; t LOCALE_SYSTEM_DEFAULT, // System locale% b6 E3 b/ ?" A y
&pokeID); // Array of IDs to fill on output Z% n4 [8 ~0 C9 w: G& v $ \0 W6 F: {- L0 h# E G7 t if (hr) ( F, \4 a f# g$ x6 |: Q5 [2 } {( z. w+ I# Y f" q; F8 A8 c/ U3 K. }
MessageBox ("Get Poke Unsuccessful");: M# r; P! X% a, j7 l
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/**************************传递数据给extend**************************************/ & a+ X+ s7 h6 w* x; y pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 w" q6 Y* V: d7 F* Y( n$ a
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valueStr = SysAllocString((WCHAR *) L"1232"); $ \0 o- q7 e, T, a$ X( U VariantInit(&pokeVariant[0]); 9 O: X+ \4 t& l9 }# [1 t4 D5 k! t pokeVariant[0].vt = VT_BSTR; ( C7 N4 m0 M& | pokeVariant[0].bstrVal = valueStr; ; x, [+ F5 u6 N7 \& y" O' k1 E) K1 t" [5 y+ Z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - O( ?" f; N8 M. C9 J8 V VariantInit(&pokeVariant[1]); ) v* B$ j, n, L: p$ G/ n
pokeVariant[1].vt = VT_BSTR; 6 F$ j. N, D0 M6 g/ K pokeVariant[1].bstrVal = itemStr; ) ?/ h+ j0 l9 \1 i ! u2 ]8 q3 {7 T' J( Z/ Z5 S topicStr = SysAllocString((WCHAR *) L"system"); , B+ a, v- n! V: K0 ?( y, @, w VariantInit(&pokeVariant[2]); ' d: H/ f0 a, r pokeVariant[2].vt = VT_BSTR; ! K# E/ [ k( D- f pokeVariant[2].bstrVal = topicStr;) o; Q( k* ?: u
6 C) ^7 [6 k% m) a3 G. w. o" ]5 C// Set the DISPPARAMS structure that holds the variant. 0 P/ n7 H2 J, }5 }1 S+ c; t6 E( ], T Z. v% D# Z6 I5 E
dp.rgvarg = pokeVariant; $ |3 N% M6 t. r! x* w dp.cArgs = 3; 6 Y: v6 u. C; e, t+ r dp.rgdispidNamedArgs = NULL; 9 A8 l; q, N- m; `5 n dp.cNamedArgs = 0; 5 `0 F: h# e7 k" g, s * c- B! L$ g, @9 [0 v// Call IDispatch::Invoke() 4 ]+ c0 W/ A; |* N+ ^3 ~0 F9 ?7 P+ Y/ d
hr = m_pDisp->Invoke( ' ~1 v% X3 k7 D: B- d& }3 |1 Y pokeID, 2 A8 Q( T* E1 s+ D IID_NULL,. y: y$ R# n9 S* v; v# g
LOCALE_SYSTEM_DEFAULT,$ E( {$ ]8 x! J! Z8 i9 ^
DISPATCH_METHOD,9 }3 \2 V+ ?1 y0 G1 ^6 g
&dp,; y, x* A- R- G
NULL,! Q0 N1 I+ H: H4 D
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&uiErr);' A) O( Y" w( [9 e6 o8 o. g
, k2 t! A, F- I- q" J* m1 f/ K SysFreeString(topicStr); ( R5 I; u% L& e3 M SysFreeString(itemStr); 1 K9 Z8 B9 K: ~: E" i9 p$ \; @: N; l SysFreeString(valueStr);- x' E& L4 }" h+ q9 k+ n. b
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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???' ^8 k/ M7 ~+ x! K2 x3 L1 \: z* {0 o
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????2 K! c6 I1 V3 i$ y3 G
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2.这是request的程序 / c6 r" G- R* ]1 V/ Y) f// Request a value from Extend8 q" H; l) n' S/ c, Y
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// Initialize the variant that will hold the BSTR. Set the variant's. d0 I9 ]$ e3 h
// type flag to indicate the fact that this variant holds a BSTR. Place the ' k; ^3 d9 b3 e" x3 }% ~// BSTR into the variant structure." i# E9 q" N' D