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 D3 }' l' W& P1 ]9 C) q4 G, @( SName = (WCHAR *) L"Poke"; $ Z' X# V* R, e& M% V* _3 J$ [# `% H , `, g! r/ C8 ~# y- G! G- b
hr = m_pDisp->GetIDsOfNames () D; }5 o& b0 z! l" k, R) {5 d
IID_NULL, // reserved( s; E$ ^- p5 o8 ]" F; J4 P
&Name, // Array of names to get IDs for , c8 Q0 V: C2 R4 `4 Y9 y) g 1, // # of names in the array: h6 J. x9 Q& s0 }
LOCALE_SYSTEM_DEFAULT, // System locale: I, R/ d0 k* J9 z, C& N
&pokeID); // Array of IDs to fill on output - F( i4 H" C& l! l ( m) K+ G/ x* [3 g
if (hr)) p) {% _) g& K6 T! P% h
{ " X$ `( [2 g/ p9 R MessageBox ("Get Poke Unsuccessful"); - R1 d2 a* V, [% K7 L return;3 H+ g/ G. f8 s. }' R+ ]
} 3 `8 b' x7 l# i8 W! V8 v; \ 6 j) x! W* [" ?5 J/ O- L/**************************传递数据给extend**************************************/* ?* g( U" T2 y" s9 ?8 m1 I. b
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 P2 O3 k0 w7 H' ^7 p" j8 ?
& r/ ?8 o. l) C% {9 z3 O# p- P valueStr = SysAllocString((WCHAR *) L"1232"); & ]1 C2 C1 Z8 [ VariantInit(&pokeVariant[0]); / L8 e9 H% [$ l3 ?9 H6 ~! k pokeVariant[0].vt = VT_BSTR;* T4 L! I8 E* M) h' v
pokeVariant[0].bstrVal = valueStr;5 Z( p* k& H1 E9 E
0 t3 J+ D8 J4 X# }2 K/ v itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 S+ D# Y7 q; c- K
VariantInit(&pokeVariant[1]); 2 q9 e5 f+ s1 H/ o
pokeVariant[1].vt = VT_BSTR;% |7 M L1 Q; a! q
pokeVariant[1].bstrVal = itemStr; 0 ]$ |4 x9 r9 z8 K7 [; c* x ) o! t3 U9 o# ~) Z0 A8 f# a topicStr = SysAllocString((WCHAR *) L"system");2 `/ x0 V8 c6 K: H+ H6 G, T7 E8 s& ~, y
VariantInit(&pokeVariant[2]); 4 j# k8 t, Z6 y: L | pokeVariant[2].vt = VT_BSTR;& P% T5 n- ^) D4 j& t3 V
pokeVariant[2].bstrVal = topicStr;' n/ U* V, i( T; X, B
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// Set the DISPPARAMS structure that holds the variant. 8 J2 S- j' F$ ^" z! T1 ]8 U 0 }; F) v: I. N) e/ A$ Q- q dp.rgvarg = pokeVariant; 9 Y3 V6 P! h% T+ H0 `& R dp.cArgs = 3;9 c- S8 F6 v S4 i
dp.rgdispidNamedArgs = NULL; ! L1 U1 P& W9 L% `( s dp.cNamedArgs = 0;( K2 O5 N" `8 a6 s
. n8 b0 C- v7 l t7 A4 n. h: w! \
// Call IDispatch::Invoke()0 K$ y4 ]3 C( ~4 P" `
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hr = m_pDisp->Invoke( - b4 a+ _0 D, V/ T* @- C( J4 V3 J pokeID,6 a' Q7 O0 z/ z& u. H1 c
IID_NULL,8 [, F. t, B+ y$ E: z5 g6 c
LOCALE_SYSTEM_DEFAULT, 1 u' y9 v4 N: w DISPATCH_METHOD,+ e4 Z! ^, w4 w( C4 Q) W
&dp, 1 Y/ ?; x9 _8 a5 d& z a. K: ~ NULL,8 E1 H; Y" [% a4 U: t
&ei,$ m8 s* s) m, u, X
&uiErr); $ s @) ?! _' k" q 5 z( d3 Q, _9 w, B$ Q SysFreeString(topicStr);! E) b: y/ X2 s$ Z( D
SysFreeString(itemStr); - A' P7 s7 b8 j5 |6 _" R5 @8 C( h SysFreeString(valueStr); 5 k1 F9 M- Z5 M& V2 U0 C: u s+ D* z5 F' b8 A
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 w$ q6 V# J$ [6 N) m+ P: A
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 s) O7 Z# c; l# D' W" B9 v% H. E4 _* U) ]2 y! O5 w9 f
% V- N6 W( n& ?8 g- v% d8 f2.这是request的程序( p- j- ]6 v# s
// Request a value from Extend2 p8 u* ?' _ p0 N1 [. H
//" ?) H. A5 G- O9 L- }
// Initialize the variant that will hold the BSTR. Set the variant's * e% S. b! ^) l Y$ _4 A- q. K0 Q' n// type flag to indicate the fact that this variant holds a BSTR. Place the 7 z* e0 s. n. j r8 l// BSTR into the variant structure.! `8 Z' C3 h5 G, d( g. N. d' L
5 k! o- a, C M' }: z o! ~4 h requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); . F& y @# `+ j2 [ 0 |' ` M1 ?4 Z- M h itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* G8 d0 }/ T( U$ ]7 l2 Z
VariantInit(&requestVariant[0]); , k4 ^% F+ U; ? _ e9 q" g a requestVariant[0].vt = VT_BSTR;$ y9 L: ]" w7 V# }5 h9 H& ~
requestVariant[0].bstrVal = itemStr; 1 H1 G1 \4 r/ D* Z4 k* d# n / L7 |' |6 i* L' Z topicStr = SysAllocString((WCHAR *) L"system"); $ Q; n& R X8 F6 R VariantInit(&requestVariant[1]); ! D# U) \, ?8 D& L. E J# f requestVariant[1].vt = VT_BSTR;' P m/ i) D, \* M N7 U* c: z U
requestVariant[1].bstrVal = topicStr;9 F) \; [4 L/ _, J% ?) R! {$ P; ]
5 N8 H1 ~: Y1 C5 k# {/ {// Set the DISPPARAMS structure that holds the variant.* U! _" M- z) J' U ]& k