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:8 ` C' ^+ F! X b
Name = (WCHAR *) L"Poke"; 9 n1 p* r" U# L) B # v+ c* w6 ?" s, ~ hr = m_pDisp->GetIDsOfNames ( - s7 @' K0 h1 D# ?4 n. G* L7 { IID_NULL, // reserved % Z6 c" {/ Q- i5 P &Name, // Array of names to get IDs for 2 B( r0 O+ _ m% R' K* u& } 1, // # of names in the array 3 [0 I4 G5 c F% d% v; v LOCALE_SYSTEM_DEFAULT, // System locale : [1 l( c/ k' F &pokeID); // Array of IDs to fill on output" R6 A p( Q, Z- x- L
1 a9 L& F& P! m6 p if (hr)! u8 F1 ^5 }+ ^% t5 Q
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MessageBox ("Get Poke Unsuccessful"); . `' v c, K* y9 D8 @8 c return;- B0 b% t1 [" G! ^8 i! s0 p
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/**************************传递数据给extend**************************************/ - y: {1 o8 Z. O pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 A! @! J. m2 ?8 U( u4 |
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valueStr = SysAllocString((WCHAR *) L"1232");* |, N7 d5 H2 p! D' \
VariantInit(&pokeVariant[0]); $ @0 S4 g5 }* A. b @) t/ x# t
pokeVariant[0].vt = VT_BSTR;. j1 t( D( I6 z
pokeVariant[0].bstrVal = valueStr;. r6 ^& W: v1 C
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- o. u! y/ T% Y1 M
VariantInit(&pokeVariant[1]); ' ]3 ]2 w- ^3 ]. I; p" f4 U
pokeVariant[1].vt = VT_BSTR;2 V1 _1 i3 m9 {6 \' J$ R( [+ U
pokeVariant[1].bstrVal = itemStr;. H' a7 l! K& L0 m
3 U3 f; z B9 H, j topicStr = SysAllocString((WCHAR *) L"system");) q& [) P4 b7 w7 r
VariantInit(&pokeVariant[2]); t" @, V: j. ]2 \ pokeVariant[2].vt = VT_BSTR;* s6 Y7 g3 H* L/ B
pokeVariant[2].bstrVal = topicStr;; l2 m' I) J; H, y0 Z: _1 ~2 J
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// Set the DISPPARAMS structure that holds the variant. G( _4 Q# @7 L0 O$ }+ L
/ F6 {3 L, I/ |/ @# u dp.rgvarg = pokeVariant;- G! T+ z& d. r
dp.cArgs = 3; 7 ?6 _0 a6 H1 a! h' y! b dp.rgdispidNamedArgs = NULL; / f/ I, h$ `, i' d$ c dp.cNamedArgs = 0;+ X6 p7 a/ \' D- G, K
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// Call IDispatch::Invoke() * L, X6 G4 H# }7 W% E' t! U) H; Z% ~3 ?1 z3 {' k
hr = m_pDisp->Invoke( 0 C9 J" {6 h, P3 d pokeID,+ T' }! }; I9 @, a8 Y# a! u; ~
IID_NULL, 7 A+ L2 O' M) u/ E p LOCALE_SYSTEM_DEFAULT," x( `6 H4 k/ K+ c7 L' Z: Y
DISPATCH_METHOD, 9 O. b! F* Q; ]+ `# g &dp,# L7 H7 w# z& }& S8 n" o! B
NULL, 8 W9 N/ E; u3 o9 q$ ]9 j6 A &ei,0 Q* ?, k* D5 V7 u/ [& B
&uiErr);9 v) e3 j. G! L& V+ H6 O6 p
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SysFreeString(topicStr); 2 @+ [% L3 V0 H/ B( b! r SysFreeString(itemStr); 6 p; c7 v; x) w, L SysFreeString(valueStr); 2 O* y- S3 Y6 T6 s l+ C + n: K1 R1 t( v: b; ^; `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??? 5 i/ ]* I) [& h5 m: K X0 D6 s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???? - X' I. l6 E6 K7 {" P2 L: U! r4 @* D+ Z! j
& i8 l* K$ ^. e! J4 r7 @2.这是request的程序 7 @- k, O' ~- w- s+ `8 \* a// Request a value from Extend0 \, Q% ?+ d/ Y4 ~0 [! Y
// + v H8 a$ p( E9 s- D// Initialize the variant that will hold the BSTR. Set the variant's * c+ s! j/ \. b" b+ L+ g! R+ I// type flag to indicate the fact that this variant holds a BSTR. Place the: l$ q( m$ l1 u B+ k& {" L% T- z
// BSTR into the variant structure.2 [" w' z- ]! {& y6 O
! I/ A1 V; J, M. A requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) m3 h5 e; s; _ h3 W5 r% c
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 ~; b+ p3 e' }2 |% x& x VariantInit(&requestVariant[0]); 2 d. ~4 @: | A
requestVariant[0].vt = VT_BSTR; ; s1 e7 V/ M* p' W requestVariant[0].bstrVal = itemStr;$ A7 a$ K4 t1 e( j, \0 \( T
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topicStr = SysAllocString((WCHAR *) L"system");$ ?/ q5 x: v8 K. D
VariantInit(&requestVariant[1]); ! O$ m) f. @$ R- } requestVariant[1].vt = VT_BSTR;9 ^+ S' _/ R0 `: R3 u3 m4 v
requestVariant[1].bstrVal = topicStr; 0 ^5 E% T' U! L2 ~# f* L& u- Y' m9 m4 j' T. F; h$ i
// Set the DISPPARAMS structure that holds the variant.% D- x9 E3 e" `
. R; _$ O3 P3 f dp2.rgvarg = requestVariant; 1 ~( J& I$ l5 C dp2.cArgs = 2; ' B1 f& m( z1 B dp2.rgdispidNamedArgs = NULL; 1 E- i+ _2 [# a dp2.cNamedArgs = 0; 5 t7 F' f. p; N7 {" [' f q / h1 c9 P- g# i var.vt = VT_EMPTY;; ~ W0 t% Y. _! N3 C) {
; t/ }5 ~! F/ }5 Q5 W7 I// Call IDispatch::Invoke() ; H8 c1 ]/ Y# a E ! N' u7 H: L3 m! f, ?2 n hr = m_pDisp->Invoke( / A9 g8 ]4 I; c3 }6 k2 c/ o0 e6 V requestID,9 L! \, c9 @) h2 P1 P" v9 a& Y
IID_NULL,+ U/ w! ?, R; X" t) T
LOCALE_SYSTEM_DEFAULT, ! L0 Q8 `" Z- P) u! R) c- q# _2 m( A DISPATCH_METHOD, 1 G# ^) K, e: K+ U! Z, X" X, A- a &dp2,. p2 w4 s2 C+ x1 [ f
&var,# w5 C) D7 ~8 O' J
&ei,8 F9 c4 g( l/ B$ C+ y3 L
&uiErr); . o. @9 {# D2 Q' a8 d/ V; J3 [# U& y1 c2 n
SysFreeString(topicStr); 4 k5 l7 b. C* Q SysFreeString(itemStr);* [/ \6 Z* [! o( a& |; J1 \
请问该程序是获得extend里面的哪个值? 2 i" v' }7 c/ N$ L% M+ n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????