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: m; m+ q& @" p. ~. `) B$ [Name = (WCHAR *) L"Poke"; % \; j g2 e5 L9 f6 I 0 W2 j9 @; d2 _/ _! w, Z H hr = m_pDisp->GetIDsOfNames (% U R+ h9 ~4 t. v; |" j
IID_NULL, // reserved& {# r: ?/ l: j- ^( j3 g' U
&Name, // Array of names to get IDs for / u) v; u! p) x1 @ 1, // # of names in the array $ I* } |- P. G* z7 h7 Y7 y) V8 k LOCALE_SYSTEM_DEFAULT, // System locale . w" q/ {% P2 d9 p &pokeID); // Array of IDs to fill on output9 g6 A- T, @, E
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if (hr)" Q& v/ J/ w, R9 S8 E V
{2 |8 ]0 z" P- L/ }& P* {
MessageBox ("Get Poke Unsuccessful");& y2 { z, Z7 w8 m1 l' y
return;! \* M$ X+ u" x* N* z5 i" F
} 2 U; O" b$ q; Y% A6 ]5 \ 6 B' d' Q4 c Q/**************************传递数据给extend**************************************/ / @6 W5 E! |0 N pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 ~9 q7 b- M( e" q& ^" Q% \ 0 r$ p8 J4 U; l& w; s
valueStr = SysAllocString((WCHAR *) L"1232"); ; D. \+ u5 G1 S$ n, X VariantInit(&pokeVariant[0]); ! |5 K0 H; P$ q+ a pokeVariant[0].vt = VT_BSTR; 6 R" B( F6 h( l6 Z pokeVariant[0].bstrVal = valueStr; ) O6 `0 c) P J" ^; E3 U7 Y6 ?, {& Q& S c7 ]+ |3 E6 W7 h
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 b; m2 e' b0 w9 i5 m4 ? VariantInit(&pokeVariant[1]); ' t$ ?& G4 V. X2 [* G, l! w2 F pokeVariant[1].vt = VT_BSTR; : h' g% Q; Z0 ?' w7 X* Z% s pokeVariant[1].bstrVal = itemStr; $ f5 H `& |1 A1 ^/ r2 d $ ~1 P5 s1 G }; \ topicStr = SysAllocString((WCHAR *) L"system");9 `+ j- u6 G, B6 o6 k1 C* r0 a* B
VariantInit(&pokeVariant[2]); : q, t) M0 D% i) _0 I
pokeVariant[2].vt = VT_BSTR;/ n9 l! ^& C0 U
pokeVariant[2].bstrVal = topicStr; ( @' [# R% f5 X2 O ) x) S! g+ P- X; r// Set the DISPPARAMS structure that holds the variant. ! `& Y4 b$ y( I( n+ a ! F" d4 v& a5 B+ L dp.rgvarg = pokeVariant;6 O: n, f4 U% v/ Y* q
dp.cArgs = 3; 3 q+ t% k9 _" r& A- h( W dp.rgdispidNamedArgs = NULL;5 b9 d9 L6 i4 F$ l; c# o: z
dp.cNamedArgs = 0;! c4 I( Y1 R5 ?' W0 |
& h- P/ p( w i1 S// Call IDispatch::Invoke() * P: U" ~: A) x, X; n: }& M3 f) W. ~8 z/ {: ]5 T
hr = m_pDisp->Invoke( " {. z/ L, @6 q) k# O pokeID,8 a9 ~9 y# C- W6 P% l
IID_NULL,' r( `7 [$ l' V. [1 I2 Y
LOCALE_SYSTEM_DEFAULT, ; z* R# d; v$ m! f) M) T DISPATCH_METHOD, ( v4 l+ Z7 k& L! }8 ^/ E# U5 i &dp, ; ? T a9 A7 v2 R NULL,8 X- V K1 S' }% d
&ei,8 r4 G( V$ E! j" b8 I9 a
&uiErr);- x9 P0 j+ k, L) v9 p
) C* r; t; B9 L* Z SysFreeString(topicStr); 7 u. Y+ T! s" o( W* t \0 @ SysFreeString(itemStr);6 c! }8 c2 R) s1 s) B
SysFreeString(valueStr);" J* T2 `0 z; Z& r
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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??? ; w6 _/ _) C- v( N! v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????! ` n% D7 s9 o
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7 C0 f/ I6 V9 a ]2.这是request的程序 : \& z1 w6 ]( c4 w9 G. ?1 `. H// Request a value from Extend: `0 U" @ q9 {7 u" p
// + ~( j) h- A/ e# m: S* i// Initialize the variant that will hold the BSTR. Set the variant's 7 J4 ?) I4 s6 u' [; K+ o// type flag to indicate the fact that this variant holds a BSTR. Place the % W! g3 x4 ?0 R( f// BSTR into the variant structure. 6 ^3 z. c* O7 K 1 @1 Q; ~ Z4 N requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); f7 p$ U0 R; w( T0 m, F 9 j% c- |, E% d) B5 a
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 r: Q: s1 @& [ VariantInit(&requestVariant[0]); . l3 L4 o. \" {; m4 C* n5 A, {
requestVariant[0].vt = VT_BSTR;7 X% ]/ B" x7 }; l/ i8 ^* C
requestVariant[0].bstrVal = itemStr; % s) ~9 o" i( }$ O 9 v6 i" G! T3 y* J' D topicStr = SysAllocString((WCHAR *) L"system");. R( c; M8 _. T% Q# O
VariantInit(&requestVariant[1]); ^) w4 G f' _* z requestVariant[1].vt = VT_BSTR; 3 Z+ _4 R; _# K" A ]7 J requestVariant[1].bstrVal = topicStr; 0 o- J; N$ M/ u" w. |7 S4 L" Y& |: `* Q- {- v8 Y. q
// Set the DISPPARAMS structure that holds the variant.$ F# z8 C7 m4 p& U
3 p. x, n) Q3 z" |, S# ?( g; B8 G4 s dp2.rgvarg = requestVariant; ) s# Q, ?4 ?( H5 ?% C dp2.cArgs = 2; $ g! Q+ l1 V. r4 B7 l dp2.rgdispidNamedArgs = NULL; # |% E4 }, c' J2 z9 { dp2.cNamedArgs = 0; 3 J$ j. p% j1 j1 Z; d * \ E$ s% }0 G6 s var.vt = VT_EMPTY; 5 i5 t# G8 G0 c2 A / _3 I* B0 r$ o7 j+ T) Y// Call IDispatch::Invoke()# Z# ]$ ~. j5 H3 Q& _8 w. C6 w! q
" D2 g* r5 o/ z3 |2 Z+ m hr = m_pDisp->Invoke(7 b, X+ `0 J1 M' t5 E: w9 O
requestID,0 i7 D+ k( _4 I; E5 ]5 g |
IID_NULL,7 E, a$ |7 w7 j8 u
LOCALE_SYSTEM_DEFAULT, $ V! n- c S/ Q1 S: P% _$ R DISPATCH_METHOD, / O! j! f2 y& A0 d3 C: t &dp2, ' p* g: K: g9 V' e. U &var,& }& K* T# q( k# P- S
&ei, / Q1 x# a! b6 G( n) g P5 G; `9 G &uiErr);' r8 |0 F" C, y: n7 A( ~