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: . H3 B5 {& O! o$ j- uName = (WCHAR *) L"Poke";4 E' Q- [/ B: i+ t, U2 x
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hr = m_pDisp->GetIDsOfNames (5 o7 k! o) z2 r3 E; ]
IID_NULL, // reserved : ]4 A" y1 f) M0 c9 w( i3 w; `- G8 M &Name, // Array of names to get IDs for. T7 w% A; s3 |7 D. I- ~, h ?
1, // # of names in the array. y' k+ ~. o D
LOCALE_SYSTEM_DEFAULT, // System locale- g# m* W, A' s
&pokeID); // Array of IDs to fill on output ' A6 F3 y [9 T3 k! u & r+ q2 D6 W+ K e" b- D: a7 R
if (hr) 0 U9 |9 j! T, v! N* r { $ c @) r" D% l1 |4 |9 V/ p MessageBox ("Get Poke Unsuccessful");5 r* W9 y# X9 R% k: X( ?* f
return;# {) r5 G" ^- r
} ! r! N- E4 G3 M; O. _$ g * Y, n8 m' o+ m) J/**************************传递数据给extend**************************************/ t4 W, c n" d2 n pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); , f: X% s6 g) N; W+ X 4 r- }) I P$ g S valueStr = SysAllocString((WCHAR *) L"1232"); $ C: q; _) L5 c VariantInit(&pokeVariant[0]); 5 h! Z! q4 d0 d
pokeVariant[0].vt = VT_BSTR;0 G% |! Z( o" g' X
pokeVariant[0].bstrVal = valueStr; 8 l5 s8 z8 P; E+ @# X0 ]% M6 k1 q4 a6 i. g
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" x! x& s! g0 ]3 V" r4 m2 ?
VariantInit(&pokeVariant[1]); ; v& b- `$ |" ^3 ?; N7 D pokeVariant[1].vt = VT_BSTR;3 J: O ~9 h b8 d) m0 j
pokeVariant[1].bstrVal = itemStr;0 n5 J0 F% X- H# Z0 [0 d
( O# U- s8 E3 q' Y) b' s6 M topicStr = SysAllocString((WCHAR *) L"system"); # Z g8 I& H( R T+ ^5 w! E! A! q VariantInit(&pokeVariant[2]); 1 V3 c5 @7 z% D$ a; b/ W* ^) E pokeVariant[2].vt = VT_BSTR;. h# P, o# I2 o% Z
pokeVariant[2].bstrVal = topicStr;+ X+ a* z5 G- |- ^
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// Set the DISPPARAMS structure that holds the variant.0 |! t: X4 n. l
4 }9 i. W3 k5 [) [3 @( m dp.rgvarg = pokeVariant; $ Q7 W) F- i0 a" l; @ dp.cArgs = 3; 2 y) l8 E# h: K* _, ? dp.rgdispidNamedArgs = NULL; ( ?* R2 H2 k% _& k; G: f' j# E dp.cNamedArgs = 0; & q9 N' D f3 y6 D/ u% d / D. ~# c, t. h6 Z! }// Call IDispatch::Invoke()9 t. N# ?: M* p
: Z' n3 x* g6 W hr = m_pDisp->Invoke() _( | G3 w+ u' I5 a' N; M
pokeID,1 e) I: i- Q, M& m- G) l! Z% K
IID_NULL," d' y X( y. z% C4 T
LOCALE_SYSTEM_DEFAULT,$ k) z1 f9 R/ E3 e. C/ a$ C$ D
DISPATCH_METHOD, # f7 [7 H: ]/ R &dp,) z% R7 p0 |0 _7 x0 b
NULL, * c/ v% [# x; l( I &ei,6 m5 ] Q9 v7 b ^1 c
&uiErr); % X$ _9 b) ^+ ]8 T |8 ~ r$ E" R: r
SysFreeString(topicStr);9 H5 v7 K$ c( y1 |5 [1 D
SysFreeString(itemStr); / |5 J$ T6 p4 ]; p0 S3 P+ n0 f, K SysFreeString(valueStr); ) m, W H% M# z) Z/ L8 i! o H; l r8 ~+ Q" Z. A
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???) I, L" g |4 |
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????, x4 E) E$ D M) j
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2.这是request的程序 9 c3 Z7 ~! B9 q5 u7 i0 o// Request a value from Extend. ^. M( S! A, i/ k4 B
// 3 ~8 J: Y5 u# R& G7 l( P! p1 O// Initialize the variant that will hold the BSTR. Set the variant's f! ]9 t: o& |! p( P$ i# ?// type flag to indicate the fact that this variant holds a BSTR. Place the ) U. F& e6 H% X( {: K// BSTR into the variant structure.7 j. b% `: O1 n8 r% w
, j. o4 s7 _9 o; l. d. F% l1 L: U requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' H, D* O+ n( m) C5 m* W