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: 5 ?$ X6 L+ J& H; P; l" }' W7 fName = (WCHAR *) L"Poke";0 L! Z- ?' p" ~ N" N+ K
+ r4 @/ p! a& _9 r0 b
hr = m_pDisp->GetIDsOfNames ( 5 {8 V6 Q) e8 y1 b+ G IID_NULL, // reserved- Z' N- w8 j+ G7 H2 G5 T
&Name, // Array of names to get IDs for / G! t/ u! ~& j( |/ m5 T# G 1, // # of names in the array 0 I5 r/ F) }1 C7 l& L7 m8 O2 R; P LOCALE_SYSTEM_DEFAULT, // System locale- D4 X( r# M+ n- _3 b' p& ^
&pokeID); // Array of IDs to fill on output+ E% i1 p' [. B$ x5 `5 X
: p2 N+ g- F& i* S if (hr) 9 a; K9 L" }! u( ?/ T { ( w& H' g- D m* r) t' x2 x MessageBox ("Get Poke Unsuccessful");$ @ N' q) t6 v1 u
return;2 g# w) W" r4 Q5 `! [
}( E, N- L' }( n9 S0 _* q
U5 }; `/ T4 U. N6 v
/**************************传递数据给extend**************************************// X, t" K8 n4 M, B! r$ z8 k
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ' X! B/ D' S. X6 g : ~! T i" g' O valueStr = SysAllocString((WCHAR *) L"1232");7 [, N9 K, d% X' a
VariantInit(&pokeVariant[0]); ( L7 [0 h' s6 S) C" f6 E6 z5 J
pokeVariant[0].vt = VT_BSTR;9 I& P: ]+ I# ?
pokeVariant[0].bstrVal = valueStr;7 N6 n! C& \- k/ l7 @ N6 B
' S5 w& u* ]2 R; e
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ~6 ?" N$ n" c3 ` VariantInit(&pokeVariant[1]); 6 v; e. I h4 b5 O2 u$ e/ @* x pokeVariant[1].vt = VT_BSTR; : F }$ C# A+ C0 F2 P1 v pokeVariant[1].bstrVal = itemStr;% P7 v M: r! P! F; `* F% `
1 j9 i. ~" l m- H# _( @: i e topicStr = SysAllocString((WCHAR *) L"system");3 N% J$ R: ~* o: ^3 b, L6 l
VariantInit(&pokeVariant[2]); 9 ?! z8 q9 x" b- |8 Z6 \ pokeVariant[2].vt = VT_BSTR; O( b- |( K# P8 e8 b pokeVariant[2].bstrVal = topicStr; " l$ m0 M7 \- W- k1 y ! N1 J" u) x! E" ^// Set the DISPPARAMS structure that holds the variant. * R' }, ]5 G6 M; k. q! q ; M8 u/ X; T c) ?+ e5 m' V' V/ f dp.rgvarg = pokeVariant;& _6 c( r* e& E9 a: c
dp.cArgs = 3; 0 k5 U) G/ o4 q dp.rgdispidNamedArgs = NULL;+ N" j% a/ X+ V5 c" T
dp.cNamedArgs = 0; / ]' G5 }, w2 U- {) l6 i% c: w" N. c
// Call IDispatch::Invoke(). p' G' W* @6 Y5 t" }1 s8 x! y8 e
, S% U7 ~/ p, C( q6 I# q
hr = m_pDisp->Invoke( ' l$ b. t5 k* W- N3 N% A" O pokeID, ( s0 T5 _5 Y/ L( X IID_NULL, 6 |( D- v$ n3 m+ V% t. h LOCALE_SYSTEM_DEFAULT,, A1 C' X- R2 E: K: B( a; q3 d
DISPATCH_METHOD, 0 @+ w3 U1 `, e8 C &dp,8 o0 F; X+ o: F- A8 s0 B$ ]
NULL, - S: ~& i1 K" _9 e' p &ei,/ ` w2 _) b& M, } |: P
&uiErr); # t% g9 r/ p# q- A* t0 h9 \8 S$ O# R8 ^ _& ^3 S
SysFreeString(topicStr); ) _, Q2 @ x1 I3 L: P) @ SysFreeString(itemStr); & i& S4 |7 O: M5 a SysFreeString(valueStr); r; ~# D1 ?7 |: `7 C5 i/ k& j( v+ G7 z/ k
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???% {; U' y: Q ?# c2 U2 B
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???? 8 w: ~) L/ ?+ }# |7 m$ s# A4 ]+ |+ I: ^
$ \* {- J! [6 M2.这是request的程序! k% D4 }% n* [6 G
// Request a value from Extend2 |1 r; o0 E* c8 S$ R, `
// + D ]4 }, E, g6 t5 H7 i5 ~// Initialize the variant that will hold the BSTR. Set the variant's$ m0 `* `# a2 o8 Y
// type flag to indicate the fact that this variant holds a BSTR. Place the$ B7 \/ C E8 X W x- B
// BSTR into the variant structure., h, S' J; P+ _# o. @" x/ q. n
% h. i8 t$ e: o0 M8 ` requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ; a5 z/ h* F% x) p: @ / }( [. E% H- Z/ l
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " a/ u+ V: p1 Z z/ L VariantInit(&requestVariant[0]); 5 t+ `2 L* v1 ?' t" Z2 S* \) b
requestVariant[0].vt = VT_BSTR; . _' K/ }. e, I+ \; a requestVariant[0].bstrVal = itemStr;$ Q" E( J5 v; o4 O