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:. J" r+ F) B5 d
Name = (WCHAR *) L"Poke"; / D- i% E+ H3 A- M* g 5 u4 @: P) o% H, } hr = m_pDisp->GetIDsOfNames ($ i; r0 ?- q1 c; ^; } ]+ P
IID_NULL, // reserved' ~9 r) r' n% c# U0 t9 i
&Name, // Array of names to get IDs for 2 K! q+ B. X% F7 H9 I/ i+ l0 G; C/ P' S 1, // # of names in the array 1 w7 P# v. e4 ] H4 |/ e ?/ O LOCALE_SYSTEM_DEFAULT, // System locale3 I( g% o% f- A h% q8 g+ p& ^2 _
&pokeID); // Array of IDs to fill on output4 n4 F/ l6 \% T% Y
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if (hr) + E+ J0 P9 b; s9 ?( p {( q5 A; s, d+ a S
MessageBox ("Get Poke Unsuccessful");, I4 m8 p2 B7 j8 B8 z+ ~; h
return; 9 u- H* Y+ p, { } ' \# |+ W! ], p+ I3 A2 s% S C9 b7 t8 h* l
/**************************传递数据给extend**************************************/ % N$ A2 s, ]4 `( w/ a pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; T7 ~' W: `# m2 W0 [- k2 O
; W0 [+ z. ~+ H$ `# {+ T- i
valueStr = SysAllocString((WCHAR *) L"1232");# t# M/ g5 Z% E8 J$ Z
VariantInit(&pokeVariant[0]); 6 n( @: I) i% v9 f1 \) }
pokeVariant[0].vt = VT_BSTR;9 i* F7 i1 V0 Y* Z
pokeVariant[0].bstrVal = valueStr;: z3 o; f& l" K9 x% L
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ U8 ]/ }+ I/ j: |( X& g6 k VariantInit(&pokeVariant[1]); + q1 S5 J4 h. h
pokeVariant[1].vt = VT_BSTR;+ O/ r0 z# a; O1 c8 c( K
pokeVariant[1].bstrVal = itemStr;4 F9 t8 n1 e3 D+ }) [
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topicStr = SysAllocString((WCHAR *) L"system"); 1 p' s) B; ]6 ~5 }. b7 }0 o) s VariantInit(&pokeVariant[2]); , g9 g9 r4 [( D) A2 T. t
pokeVariant[2].vt = VT_BSTR;! Q/ E& H) I( ~
pokeVariant[2].bstrVal = topicStr;3 p; g& E+ J* R8 ?$ E! J+ G6 K
\- x$ Y1 G9 u' @6 S, f// Set the DISPPARAMS structure that holds the variant.9 ?( h* e1 Z1 A s& x; @
# b- h4 z) x! a6 g1 w1 | dp.rgvarg = pokeVariant; - Y1 U1 s. W% C0 c/ v dp.cArgs = 3; 3 K6 }9 u& \5 M' N dp.rgdispidNamedArgs = NULL; # A! N% C; N7 p7 F8 j3 R# s dp.cNamedArgs = 0; . t( h5 g! i a1 \6 ?' g4 K/ J9 M. _& @! `# b) o# y( a4 s
// Call IDispatch::Invoke()/ e& l6 o; O S
9 r1 y) t( _3 ?) I# R. w& U hr = m_pDisp->Invoke(. W& ^$ m. E; Q# V: c. E
pokeID,0 L' t+ A, j4 ^6 |, r2 B
IID_NULL,7 s. I( l$ F) H" A) R. o- J+ L- \
LOCALE_SYSTEM_DEFAULT, / ], J8 C! [' c& c2 n DISPATCH_METHOD,% z6 T/ c; t1 ~) J1 z$ t
&dp,! E7 H3 [" M& m( E1 Y$ E" R: N
NULL,7 c. u! Z% l0 e2 Z5 a
&ei,$ g% [7 C9 e' a8 J0 l6 }) o
&uiErr);9 [1 B2 R! C5 F. m# z
) @4 m, A# ]3 [" }7 a SysFreeString(topicStr);7 \" ]3 d) k- Y7 |& D. q
SysFreeString(itemStr); ! \4 i! b+ u% E" M SysFreeString(valueStr); ' g. @4 v6 {$ w" M" w( ^/ Q1 j1 n- }3 u, q$ o9 Q- U( {
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??? + t! `) w/ c @; r" f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???? 4 h% q0 f! }- R5 W H1 T; p# ]1 D: ]% U+ q; Z4 H8 c. s
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2.这是request的程序 # V5 r. H+ A3 m// Request a value from Extend |: z: ]4 U- q+ o! U
// # ~# J* v: j; z// Initialize the variant that will hold the BSTR. Set the variant's 2 p0 u" B- `7 d. x// type flag to indicate the fact that this variant holds a BSTR. Place the u' ~: d' Z, L0 q
// BSTR into the variant structure.) J7 E" t" K. w4 @( _