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:+ B$ `+ Q4 j- q8 d6 H' K9 i L
Name = (WCHAR *) L"Poke"; * C9 B/ g+ w6 B: L ; ?0 k( G: s! n* K+ c, X8 f
hr = m_pDisp->GetIDsOfNames ( 3 }( ]; n. r9 q, d+ c* T( S% E7 S IID_NULL, // reserved 1 s5 _( ]" D2 G% @: c( s &Name, // Array of names to get IDs for ' V& |& ~1 L- c 1, // # of names in the array 9 V3 q0 K" E# x5 Y* n LOCALE_SYSTEM_DEFAULT, // System locale" n1 `0 b( V) M# X4 v
&pokeID); // Array of IDs to fill on output0 s, K* o. Z9 P. L% n
1 ^- N' a3 V2 @6 B
if (hr) 8 ^& v2 O( s4 v; n6 \% W { : ~9 J3 D Q: @: v7 ` MessageBox ("Get Poke Unsuccessful"); - z3 g* D X8 @+ I8 [% w# s return; 8 N, s4 K* s) y9 S' I# F4 R8 w } 7 G( S4 c: e. a6 G( F$ h' E 1 C! d5 p& {! N/**************************传递数据给extend**************************************/6 g: M: V% M1 O! y2 Y8 d6 r% T
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* P. j, D- ?# j' `9 }+ ]" f' X
2 t# n7 x( j6 b, [- M2 J1 _- P, C valueStr = SysAllocString((WCHAR *) L"1232"); 6 x0 [: C0 M; N( O- h# a8 s( _+ [ VariantInit(&pokeVariant[0]); % @. D+ x( g+ ]3 T u) | s pokeVariant[0].vt = VT_BSTR; 7 c) @* I# X8 g+ k& ~1 ~$ C pokeVariant[0].bstrVal = valueStr; # g5 A. r7 j9 Q+ U* g' X2 C" J& S2 X0 a8 } Y& ?/ [
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 m0 p# o1 X; H0 ]6 n0 e
VariantInit(&pokeVariant[1]); & }) x3 `" Y/ D: I
pokeVariant[1].vt = VT_BSTR; / x3 s d& g$ d$ z pokeVariant[1].bstrVal = itemStr;8 `* c$ K7 s3 K+ @
$ j, a' ]' W/ @( E5 x" v; q# U
topicStr = SysAllocString((WCHAR *) L"system"); 5 B5 ]! ]% M& d% w" e8 ?+ n# a2 { VariantInit(&pokeVariant[2]); & ^/ s7 h! c5 Y9 Z- _$ b4 D pokeVariant[2].vt = VT_BSTR;6 S: k' b5 L; ~
pokeVariant[2].bstrVal = topicStr; ( U, `. k+ f: m' K) p6 `) |. O. {4 f$ L: W" p
// Set the DISPPARAMS structure that holds the variant.: `$ D4 s- O! L: y+ K! S2 K
8 D2 n% ^3 C8 e+ @
dp.rgvarg = pokeVariant; ) r# G% Z0 d7 q dp.cArgs = 3; , {. W9 c+ h: e! B& _ dp.rgdispidNamedArgs = NULL;5 c) N% i* q: z. a# w( M- O
dp.cNamedArgs = 0; ) f( |! [. R6 g! @" m- A . M0 K8 V, N5 n( Z, x// Call IDispatch::Invoke() c6 ^7 c6 T9 M8 L) R n5 e; u; }
0 J& v0 z: {) m8 }7 S9 g n hr = m_pDisp->Invoke(8 x8 b9 v1 j" o3 I
pokeID, : I/ Q1 L7 }0 r, j; j8 Q! t% K3 F& v IID_NULL,1 Z8 {# n6 ]& s( F% N! f
LOCALE_SYSTEM_DEFAULT,5 I( `% m/ [$ k4 m
DISPATCH_METHOD, * G4 R3 y |1 h* g# h/ r &dp,( l: h9 S& B$ c; u" ?+ d
NULL,9 I/ }; ^8 j9 ~1 T/ X6 y
&ei,- T, h* ~% Q( }# H
&uiErr); ' }/ h$ o. r& d+ F9 A" q2 C 0 f: D3 m+ k+ i+ U9 n SysFreeString(topicStr); 6 @$ ^# `( X. f+ P SysFreeString(itemStr); % M/ c7 ]% P* l5 p$ j3 k SysFreeString(valueStr);' Y- }2 r2 f! k s9 p
E A/ l& J5 b' W- D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??? 9 Y* S$ M1 D3 [2 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????% \- L5 p* J8 B- E
3 g. V) a, I) \* n1 m! t& q
* H! {: d" H. r* ^+ B2.这是request的程序 & ]( ~4 W) A% W1 w1 ^( K// Request a value from Extend5 U. U* c# {7 t. i
// 3 \6 V# H3 N* G3 W# K// Initialize the variant that will hold the BSTR. Set the variant's3 y- k U: W. ]6 ^# U$ K2 \+ C" v
// type flag to indicate the fact that this variant holds a BSTR. Place the" M7 n* {6 q. [0 a' T/ Y
// BSTR into the variant structure. & \$ `. | w! ^/ ^ ; r0 u" G" l- S" A6 X, \- P requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);, `# T9 T% Q4 T
' l% M! b- @" b: c6 S
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ A$ C% u% `2 d$ c' o: K VariantInit(&requestVariant[0]); % K# f3 C1 V, d9 U8 r6 _
requestVariant[0].vt = VT_BSTR;6 j$ Q$ U* `$ w* _
requestVariant[0].bstrVal = itemStr; , u; P& y2 U! X9 U8 \" y' O( Q1 q; H$ z& d5 ]" `
topicStr = SysAllocString((WCHAR *) L"system"); ) @( Q5 x+ @5 e+ d: b2 [ VariantInit(&requestVariant[1]); $ ]& u9 n% l3 @& v& O
requestVariant[1].vt = VT_BSTR;3 _: T4 {% V. a
requestVariant[1].bstrVal = topicStr;+ y$ v/ O* D4 x5 C7 l4 t9 B
( j, i* C G" D' f9 J// Set the DISPPARAMS structure that holds the variant.% S e5 ~& c6 L# a
7 }$ m0 ^- j+ x! i! y0 m
dp2.rgvarg = requestVariant; ( ?* k0 t3 d" A dp2.cArgs = 2;7 J+ E* V+ d0 F
dp2.rgdispidNamedArgs = NULL; $ f+ @+ y7 e+ N, G) @' w dp2.cNamedArgs = 0;# V( M u' ^$ p4 y3 O' S6 D- W' ]. p
6 \, r. j4 h& K& N
var.vt = VT_EMPTY; 3 h8 V' u, |7 r- R5 k; E5 v' W/ M1 f
// Call IDispatch::Invoke()3 X% g. l8 b! v9 H! Z6 T3 B
/ |, O7 \: ~2 l0 o hr = m_pDisp->Invoke(( d% W6 f! U/ R" C( P. m, j
requestID, " w% i T) H8 f IID_NULL,2 R0 U/ K/ ~8 u( m) t
LOCALE_SYSTEM_DEFAULT,4 M+ T, F! h8 v; c2 n
DISPATCH_METHOD, 9 n8 C+ K* x# K5 |( p: c* T3 A &dp2,; h& E2 Y4 P7 U
&var, ( c4 ], V* w" F2 V0 w &ei, : u) c& R# M$ [; a$ f: V% F2 z& b &uiErr); * o7 X$ u3 Q; o& _5 k$ H8 E ' W" @0 Z$ N' G3 l7 k: E. q1 x" K SysFreeString(topicStr);, q( A0 `; D/ S1 v, Q5 E* [
SysFreeString(itemStr); & b" j: @. a1 n* w e) w5 r1 ?' E请问该程序是获得extend里面的哪个值? : }* b3 d$ Q( t5 z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????