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: ; {+ z# R* d2 Y2 s3 ~Name = (WCHAR *) L"Poke"; }" k7 P& F, g1 s0 @; a; Z
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hr = m_pDisp->GetIDsOfNames (6 ^, k! x) D3 ]6 c
IID_NULL, // reserved T C! {. ~& i! E &Name, // Array of names to get IDs for + V/ m0 C$ f% h8 O0 p) G 1, // # of names in the array) P+ M( i4 {/ I) |$ {2 L; m9 T( R
LOCALE_SYSTEM_DEFAULT, // System locale 8 x6 @* L( r; e" A &pokeID); // Array of IDs to fill on output $ e. x4 U( [* \2 d# }; G. Y* c- n ( M1 A8 H3 d6 v% X3 c! X, G
if (hr)) ^/ i* q6 \$ l, h: Z1 g! s6 c) y
{ ' @6 \, A, p3 O! J) L. f" O MessageBox ("Get Poke Unsuccessful");7 n7 T4 C# k) \8 j M7 n8 a
return;3 m: Y. q( W4 }0 S( g a- D$ J5 ?
} - R: |/ a, V+ v# \ ?# x% T; u8 c" k3 i: K: L& W; u
/**************************传递数据给extend**************************************/7 u& ? @3 N& ^( G7 E8 E/ p. T# W, o
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 v6 r5 y9 }, W3 J9 B) E8 B
% r( C# T( L; j( [. ]* S valueStr = SysAllocString((WCHAR *) L"1232");+ o7 p+ c! _8 d. O- b
VariantInit(&pokeVariant[0]); % Q7 x' u7 [' l$ K, n0 {* h
pokeVariant[0].vt = VT_BSTR; + G+ o0 h3 K) Y pokeVariant[0].bstrVal = valueStr;5 z% H4 e+ Q, p5 k4 P/ L$ z
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # W3 Z/ b6 K6 H: w9 H4 _, M, b \5 T VariantInit(&pokeVariant[1]); . |; G: B$ [+ r pokeVariant[1].vt = VT_BSTR;3 J z. U3 v7 I; H9 y, m% b
pokeVariant[1].bstrVal = itemStr; & o! w* u% Z* E+ p. l5 O) l/ ^) f4 f! G( u4 E+ _
topicStr = SysAllocString((WCHAR *) L"system"); - Q+ I5 c( v) k: b VariantInit(&pokeVariant[2]); 6 `: e6 ?- L/ j3 ^
pokeVariant[2].vt = VT_BSTR; - s$ {, Z9 h" } pokeVariant[2].bstrVal = topicStr; / g3 |. `5 h( D( J* m4 f: `6 b1 U+ V/ R% S% `4 u
// Set the DISPPARAMS structure that holds the variant. # C8 E6 j2 `- j0 y4 b" K/ k ( o& _4 w9 H) x) c# D* S- i$ C' c2 V dp.rgvarg = pokeVariant;( ~! |; D0 l3 I) J3 h: i+ X6 o
dp.cArgs = 3;$ x {2 v y8 n. x: Z. `4 B5 f
dp.rgdispidNamedArgs = NULL; . e% y2 Q9 Q+ `% a" J dp.cNamedArgs = 0; $ g, s& v0 i! [7 f. z& x2 w% ?8 x- _# c( R3 j: s
// Call IDispatch::Invoke() 7 { J* e# E& j: q; a V3 A: h , w2 `$ Y0 g. @3 I* Z hr = m_pDisp->Invoke( 3 G7 k+ n A0 ~7 A2 {' w2 F pokeID,: d2 x7 `7 k/ P3 ?1 l! n0 H* g. x" M
IID_NULL, ! L$ E/ J7 i% Q' a5 y* Z/ b LOCALE_SYSTEM_DEFAULT,7 t* \: n1 l) D0 W; {3 `
DISPATCH_METHOD,5 \" w" K' t+ [0 X. t) X+ n6 c$ t
&dp, 5 n' e- j; D7 `- c$ F NULL,7 J- y0 h: z2 X9 g
&ei," x# p4 {* F: S/ U$ ?$ T5 i
&uiErr);" P/ l8 X: V1 C; d
$ f+ Y2 Q- D( T7 K S# C/ j SysFreeString(topicStr); : g; n, v2 f3 D }" A1 y7 X SysFreeString(itemStr);4 V" j8 J0 ~5 S/ d
SysFreeString(valueStr);, [3 T) G1 Z% Y$ R% ]- ]. r
5 T# n o7 L8 n. H* w6 Q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??? # o, X! p0 q# H! m; @/ 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????5 {" q/ s& g* H: J1 n% ~
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/ b. q( S' D3 m2.这是request的程序 0 a& H3 m c, e" ]// Request a value from Extend 7 O( x. T/ b4 K//- Q1 l+ r0 ~+ v
// Initialize the variant that will hold the BSTR. Set the variant's. n; I% |7 G. ^6 r& k
// type flag to indicate the fact that this variant holds a BSTR. Place the6 [8 a( Y, T9 }- t! L
// BSTR into the variant structure.* ~& {) A# p& K0 p# y% k2 s6 i+ K
6 \ y0 o! p6 r1 N requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); : n: a9 d& d) R. j& n: `& y: A 9 b6 s6 U6 T; m [% J, w0 b
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* A( |8 `* {2 a4 y* p8 L# |
VariantInit(&requestVariant[0]); 2 W( e! K) Z' g0 \1 u$ e% n requestVariant[0].vt = VT_BSTR; ) A& e8 I+ J3 ]) R requestVariant[0].bstrVal = itemStr; 6 [- W [6 z0 C * T; Q! A; D: z) K1 w+ k4 E8 l- C topicStr = SysAllocString((WCHAR *) L"system");- }" d7 U# E8 h# ^
VariantInit(&requestVariant[1]); ' W2 [. ]8 Z8 a1 i% i requestVariant[1].vt = VT_BSTR;8 d; O# z( w& b P- B, {; p- e
requestVariant[1].bstrVal = topicStr;% ] m& _0 V, T6 a7 i4 h
! ] w3 Q: _" j7 y% q* u// Set the DISPPARAMS structure that holds the variant.6 o- [: J1 V, M0 _7 O1 f
. C" `0 a9 p* W4 B4 Q dp2.rgvarg = requestVariant;& M5 u) C: [' f
dp2.cArgs = 2; & J: r+ m) [0 Z* ]8 p dp2.rgdispidNamedArgs = NULL;4 `' D: y. u. K4 D( q: @( P
dp2.cNamedArgs = 0;" C/ U2 V! X+ w8 ~. |: f, w
2 x# C+ B- L" i* Y ] var.vt = VT_EMPTY;5 _7 v& C6 T* b4 f) l
}, Q, |( e M5 j% Y! m3 N$ O" F// Call IDispatch::Invoke()8 t& q5 u9 D) `" x! G4 L
0 A, ]* U0 K- x& G' ^( u$ Y hr = m_pDisp->Invoke(( u, L; f( q" o- r! |
requestID, . K$ y& U: U; C4 r IID_NULL, " \4 u' m: R: e* F6 @% s LOCALE_SYSTEM_DEFAULT,& D5 L# z4 A( T$ L
DISPATCH_METHOD, ) G4 @7 D- A X0 y! y& K* b. n; u( P &dp2, ]% M0 ]$ Y, p$ G' u. F7 W &var, " [. c/ _: l3 |, P3 J &ei,6 E& a- c9 n7 A0 n+ L
&uiErr);% I1 i3 Y+ X3 |
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SysFreeString(topicStr);/ P% y. {7 s" s/ E
SysFreeString(itemStr);: J! c T6 r7 [2 G& N+ n
请问该程序是获得extend里面的哪个值?4 ?8 c8 X9 h2 M+ x+ r
如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????