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:3 D- o- b0 h; b6 Q! F
Name = (WCHAR *) L"Poke"; - t. w' _5 W7 g9 m: F# Y, N , E0 f( y. i$ Y- X$ ]5 L+ s
hr = m_pDisp->GetIDsOfNames ( ( g" \8 n( P8 O/ C3 s3 v: c IID_NULL, // reserved) z9 x2 E6 t+ R, k2 P
&Name, // Array of names to get IDs for , ~/ e: O& J2 Y, V6 K( I- ^4 [ 1, // # of names in the array5 T6 h N2 |2 t7 q" r/ p. I
LOCALE_SYSTEM_DEFAULT, // System locale( h, t5 M: y1 Z3 w( I1 ?5 i
&pokeID); // Array of IDs to fill on output 9 i, p6 [% d: Q, L/ c& ^* F* z + i- `- f: X. Y1 A if (hr) / F1 E& h, Q3 ]6 n* T8 S1 d! ` {4 o: B8 ^1 J/ @! W
MessageBox ("Get Poke Unsuccessful");$ ^0 ^( |7 W/ K
return; - N5 B& \! B( m( K7 g9 z' N }$ g6 K( {6 K q* f6 ~1 F# Z3 b
. A5 x" Z/ g! y5 m: U1 x/**************************传递数据给extend**************************************/ + h$ ^3 S& h; r) u) k pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ x) Y- f6 R5 A# V( G
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valueStr = SysAllocString((WCHAR *) L"1232"); 0 F3 Z- y7 I. `; V5 D' E VariantInit(&pokeVariant[0]); & o" y e/ [& E+ X9 x" R
pokeVariant[0].vt = VT_BSTR;# @5 s2 G; k* Y8 x' j
pokeVariant[0].bstrVal = valueStr;0 _/ r s) l/ s9 |! ^
) M& ]/ W& R) z5 ?0 @ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 M$ \$ u) ~* Z3 N VariantInit(&pokeVariant[1]); ; n- N3 p- @& A* _" _- ~* Y* ?9 K pokeVariant[1].vt = VT_BSTR; ' ]5 ]) D e% } g% J pokeVariant[1].bstrVal = itemStr; " \" u) r4 [ ^ t" y' h4 t3 p 8 N' ]* S4 F$ x- p+ q, C topicStr = SysAllocString((WCHAR *) L"system"); 2 \) \6 ]; o5 l0 e) D6 j2 d VariantInit(&pokeVariant[2]); - K7 k& c" j6 b
pokeVariant[2].vt = VT_BSTR; - S# Y/ y0 T5 y$ M pokeVariant[2].bstrVal = topicStr; 5 z9 E; p! k* o( c* }/ ^9 e, k; Q6 D, V% M& ^
// Set the DISPPARAMS structure that holds the variant.+ o6 E4 I& t" }( y3 D* ?
7 G! W+ s& ^* {$ @ dp.rgvarg = pokeVariant; : n9 w4 n( ?& p% I. Q3 X dp.cArgs = 3; ( I: ^+ i7 O9 i6 n# n7 b dp.rgdispidNamedArgs = NULL; 7 A& ]3 J+ ]6 W5 r2 R# U" [6 i dp.cNamedArgs = 0; G7 h+ V. G R9 P' B( E- ]
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// Call IDispatch::Invoke()* Q2 p- X. l" S- Q7 l8 _1 }
3 Q2 c* L: {3 l: i" l. d c hr = m_pDisp->Invoke( 1 `1 ~3 ~. v6 q* r& J pokeID,8 V3 W9 N6 F1 j# f+ N; n3 ^
IID_NULL,! o5 K+ A# L4 g
LOCALE_SYSTEM_DEFAULT,) C& y, J. W! J4 H V3 L
DISPATCH_METHOD,9 @' I4 x& B3 m! t% K
&dp, " f# n, k! `# ^" U% t9 K% ^# T NULL,9 n! b+ |, |: }/ Z2 b1 m7 H
&ei, " L. w: W2 L$ L &uiErr);8 N# r9 `9 a" N; Y& N9 r5 U
& Z5 z Y: Z# H6 [* @, {; E
SysFreeString(topicStr);$ k7 V: y1 F) l- M- L# P# ?
SysFreeString(itemStr);/ J2 S B: e" P
SysFreeString(valueStr); A ?0 |, @$ D7 h& q4 c" u
8 q ]' O! c, g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??? ' B4 E5 D4 m V: 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????7 L, d6 z' D% Y, p! |1 ?- Y7 e( t4 g
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3 A% D7 K7 @4 m# n. g; c3 r: m+ y2.这是request的程序 + {7 T2 r3 R$ [0 M// Request a value from Extend # I5 n& q3 E. I9 k9 X1 X$ c* X7 }//1 i0 `* Z4 H3 [; o# p
// Initialize the variant that will hold the BSTR. Set the variant's+ g; p; b. l- c% u
// type flag to indicate the fact that this variant holds a BSTR. Place the6 d% a, \) U/ P( B% }% A3 R9 e
// BSTR into the variant structure. ' z/ a; U8 s8 D/ m! O6 u n4 C' d/ f( o' Q- g9 W' }
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);" c+ s& ~: z+ b+ d j
0 W! \: r5 G6 M, |7 W3 Z# J: |8 d itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 i2 g9 n1 M8 ]! H" n VariantInit(&requestVariant[0]); 8 y. q4 \! |7 F5 H3 `! e
requestVariant[0].vt = VT_BSTR;8 o# d$ ~1 M: O# h
requestVariant[0].bstrVal = itemStr;4 L$ ?7 _1 r9 _+ ~0 {$ ?
- @! s8 R/ u* T5 m topicStr = SysAllocString((WCHAR *) L"system");8 W8 z9 A: t2 V
VariantInit(&requestVariant[1]); ! i% v( ]2 ~8 w
requestVariant[1].vt = VT_BSTR;+ K9 `4 j$ b' Y; C
requestVariant[1].bstrVal = topicStr; ; z8 b5 N8 B/ \6 v$ T ! L0 A/ ?9 _( J* X// Set the DISPPARAMS structure that holds the variant.4 l: e& X# x6 C, |
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dp2.rgvarg = requestVariant; 9 e9 w& o8 G' Q6 Q& {' C8 u dp2.cArgs = 2; + J! [8 s* x# h+ ?) ^ dp2.rgdispidNamedArgs = NULL; , l/ T" l& c2 h( ^( p dp2.cNamedArgs = 0; 3 V4 [3 r0 @8 V! ]0 P3 ]. y7 y& z1 I# h) U$ I. x' e2 H5 z+ {
var.vt = VT_EMPTY;5 @1 J0 z8 a3 B/ M* r& n
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// Call IDispatch::Invoke() 6 `, A7 L/ b/ Z; r ' t* e- ~ u5 v9 n2 Z# C8 w hr = m_pDisp->Invoke( 9 f6 N( N; H, {9 @& {; p0 ^: m+ L* ` requestID,1 S7 L/ j0 H% G8 g, K
IID_NULL, 3 S$ \5 \! J g/ a LOCALE_SYSTEM_DEFAULT, / y7 o7 Q/ a! t/ u; Y1 y DISPATCH_METHOD, - P# ^" U. n/ e/ h5 b" \' X6 R &dp2, - N9 S8 }8 Z: U8 _: p4 i &var,- [# M, i: [, W/ v7 h
&ei, - H- R2 \" A# J: F# g5 y) x &uiErr);. t w4 g2 X5 N" a5 `. Z
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SysFreeString(topicStr); 1 f- z5 T4 n6 t S5 n9 `5 k* M SysFreeString(itemStr); ( B/ _, `9 m" g* a; {3 |1 c请问该程序是获得extend里面的哪个值? , N1 P/ E% f% f$ [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????