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: O& {& p+ v/ K% [Name = (WCHAR *) L"Poke"; 0 |# a p G7 e 1 P8 R, V' @6 L* d' r hr = m_pDisp->GetIDsOfNames ( 1 i9 T# i9 |: n1 h IID_NULL, // reserved & I8 Q0 F) }2 G8 `$ ~ &Name, // Array of names to get IDs for: f$ u4 y4 N7 G# W3 K! w" m
1, // # of names in the array " x; E/ w; n( Z, S LOCALE_SYSTEM_DEFAULT, // System locale & l: r2 A' g# c, g" `0 N &pokeID); // Array of IDs to fill on output) l% Q# |' @3 T
' `' Q& F# }; u" L4 Y& n/ n1 x: ^
if (hr) & g) ~7 }8 G/ Y6 I { % ^4 s+ V; e `: j) R) y* e, o MessageBox ("Get Poke Unsuccessful");, F" b( h6 l) h3 x/ z/ J) y4 i% {
return; * B. l8 S, ?- Z' W3 r( Y/ E } . A: n4 g9 P4 s3 `, U) `# E* J9 M$ O. i6 Q( h9 i
/**************************传递数据给extend**************************************/7 c" Q* z$ |2 H5 }) ] {/ a
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); . h1 H# {8 J- c2 F! i2 ]+ m# B . h7 z0 a" A' [8 b
valueStr = SysAllocString((WCHAR *) L"1232"); & X5 T: ], f$ n" L* T e) P' M" o VariantInit(&pokeVariant[0]); 3 l w( h; Q9 g. }* D5 S6 O
pokeVariant[0].vt = VT_BSTR; 8 z% W/ Q) X! C0 o- S pokeVariant[0].bstrVal = valueStr;+ o9 c& m7 p9 E" f
7 ^; w5 P# X/ w+ O( l3 D8 B9 ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- t+ j& D; u+ p7 h/ j8 n
VariantInit(&pokeVariant[1]); ' w i2 b/ t% c: o1 S; f4 M" c pokeVariant[1].vt = VT_BSTR; , a' F3 U7 r4 Y+ A4 p pokeVariant[1].bstrVal = itemStr; 7 B! c! R( R/ A6 z8 i! B 8 X. l e2 H2 T- c" k0 S topicStr = SysAllocString((WCHAR *) L"system");4 O2 J) o& j! D2 _' y
VariantInit(&pokeVariant[2]); , @- v, s: o7 d4 E
pokeVariant[2].vt = VT_BSTR;( ~& P/ T0 a7 B6 Z
pokeVariant[2].bstrVal = topicStr; , l g |. F& X: {2 ?# F- ]" @8 W) ^4 m: u
// Set the DISPPARAMS structure that holds the variant. 7 S; W2 n0 l } 5 n( C, t' \9 d' _( S- `9 u0 b( M dp.rgvarg = pokeVariant; b5 e- ^/ o7 g6 {0 R3 M* L7 m) y
dp.cArgs = 3;( Z1 X# M- A' U5 ?. Q0 w
dp.rgdispidNamedArgs = NULL;( s4 @- d9 H- `$ _$ E
dp.cNamedArgs = 0;' k: B9 ?& P: u
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// Call IDispatch::Invoke()& {/ `# M' x# p5 J1 C
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hr = m_pDisp->Invoke( ! {: Y0 X9 @8 S& H pokeID,' l6 L X, n: R$ S* m( Z" a6 J- Q1 Y) x
IID_NULL,+ o& A* j2 E6 ~5 x- Y ]. g% u
LOCALE_SYSTEM_DEFAULT, 7 U9 M2 _6 a; F! H, ]+ y% D4 b DISPATCH_METHOD,* M J6 \0 @" N, f! o+ k% {4 @( q4 v
&dp, ; `' |' E: N8 _- i# t NULL, % h! U: t" F( y1 d/ N% H9 Z &ei, 5 H5 L) U8 l' [: L &uiErr); i# ?! E% U8 n
+ z+ I3 D9 x( H$ {- H+ ? SysFreeString(topicStr);0 l) _: n. J" n9 ^: s
SysFreeString(itemStr); , m+ R2 g& n; G3 D SysFreeString(valueStr); ! Y$ f- A+ L% B n! \9 a$ I% A5 S. P6 `8 m8 B! n y6 h
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???7 v0 {+ ]& z! Y5 G0 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????0 l" j( t: W: A0 F: h) A" M2 B" a
2 a& G2 q9 T% g " W6 ~ z* n* c2.这是request的程序7 z1 A+ v R; U4 T
// Request a value from Extend 1 h8 V: `8 d# e d, E' Q- }4 R//2 M+ o; n* K |5 f% ?1 X
// Initialize the variant that will hold the BSTR. Set the variant's8 D. `3 l% p) {7 y6 y2 g
// type flag to indicate the fact that this variant holds a BSTR. Place the * w0 x _: t" d9 |// BSTR into the variant structure.# r2 v, A; L) e* y7 y. A$ ]6 M
; E' `% U/ `+ d6 U requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % l( [* s# D! Q, t( @6 E " ~. q/ V% Y3 d
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % A+ ]& B! r. j2 ?6 p' I VariantInit(&requestVariant[0]); 9 z4 k3 ?8 A5 P- d" D! | requestVariant[0].vt = VT_BSTR;- p; z: c# E( ^" ~- }3 x
requestVariant[0].bstrVal = itemStr; 1 ^& ]7 d5 r, I9 f9 C/ E& S8 c/ M3 c- W- L E* \* W3 w. O
topicStr = SysAllocString((WCHAR *) L"system");0 {4 y g) n7 h# M- ~& b3 e: j% M
VariantInit(&requestVariant[1]); 4 L6 B& L+ [1 z1 E! A. t" Q, n- k
requestVariant[1].vt = VT_BSTR; 4 Z5 W- e2 `% j# i/ B requestVariant[1].bstrVal = topicStr; - J9 {) y" w/ Z& i: B+ E; r6 F! R8 p
// Set the DISPPARAMS structure that holds the variant. " ^3 n+ @) [ M! v+ M+ K7 _$ o9 m5 F* n# ]8 m. L. T5 O8 K, i/ @" ^: m
dp2.rgvarg = requestVariant; / ?/ i' t) k" v( w; ]# w dp2.cArgs = 2;& |6 O' c, [* w3 y0 ?
dp2.rgdispidNamedArgs = NULL;+ J; q) G& Q+ a, m( A6 S% i
dp2.cNamedArgs = 0; 5 h7 ?, ^+ {: F6 r7 E ) [4 n+ |2 F! X var.vt = VT_EMPTY; , |. ? E6 @8 [' w) g, o4 G& P 8 s: {$ M) d) N4 L( u: u/ N3 ^! o// Call IDispatch::Invoke()8 @. d( S& \ |7 ]5 a a6 J* a
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hr = m_pDisp->Invoke( ) v& h' o' P$ Z6 O- Q4 U requestID," T$ l% R/ y4 e
IID_NULL, G) m1 R2 a/ O$ v- S- M6 q
LOCALE_SYSTEM_DEFAULT, % ~5 L9 _. w- d- ]$ y \5 u DISPATCH_METHOD, 2 c8 J8 d6 F( w) Y &dp2, 5 Q6 Z- C, |) y; y+ ` &var,. h- K' Z& V+ O/ e
&ei, : c/ e5 V% x$ l8 o! u- K &uiErr);0 I3 z6 z* m9 o3 P) P6 C3 a5 z