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:/ U d9 |! Z, J s2 H6 B% O4 C
Name = (WCHAR *) L"Poke"; % n- `$ Y6 X3 h9 S$ I9 N# v/ T) S ' I! o ^# ]. }9 F hr = m_pDisp->GetIDsOfNames (5 x' t/ n, D3 l/ U, b ?- T
IID_NULL, // reserved2 V9 M: l3 }! [" X, T T+ Z' H6 g; m
&Name, // Array of names to get IDs for2 s8 @/ g: T0 B' h
1, // # of names in the array + D% `( d: p2 Z6 P' D! m LOCALE_SYSTEM_DEFAULT, // System locale - o9 Q6 ]0 a6 `. ^ &pokeID); // Array of IDs to fill on output8 ~$ J1 b5 H9 r/ Q( J9 B
5 `( k$ M4 x8 p
if (hr) 1 O9 X0 ?, |' ]( B { 7 ~$ j! c$ ^+ m MessageBox ("Get Poke Unsuccessful");" v. L, D% u! O, A# R- w/ G
return; ! I8 R5 A7 P; T0 W( P } 0 i0 X% U- h: w, [7 H1 C# Y* T( V T) R6 L
/**************************传递数据给extend**************************************/ ) t, h6 I+ n' z3 U. E7 f pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 L7 \' F# m# w% C `+ s
) D, |% ~9 `9 O s, I( E7 b valueStr = SysAllocString((WCHAR *) L"1232");6 q4 _$ e! m; d- k
VariantInit(&pokeVariant[0]); " `" H+ B, c3 o2 g$ _0 Q' ]3 s) k
pokeVariant[0].vt = VT_BSTR; 4 t' F) w9 X" C( } pokeVariant[0].bstrVal = valueStr; . {" w' Q; P. M5 ~ " G m! V0 G O e5 U9 w! W& } itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . b2 i1 ~0 b* p6 e$ R7 H VariantInit(&pokeVariant[1]); 9 J+ f2 q" F0 v2 E
pokeVariant[1].vt = VT_BSTR; 8 Z0 O, ^7 k7 [; O1 p5 L) n: m pokeVariant[1].bstrVal = itemStr;8 H+ N1 |. ?" p3 {2 b
, K/ T M" @6 R5 ]; r+ V
topicStr = SysAllocString((WCHAR *) L"system"); / O9 t4 R0 D) V8 b/ C) I6 q VariantInit(&pokeVariant[2]); 6 V, }. A% F* S6 x/ h
pokeVariant[2].vt = VT_BSTR; c, x0 \! o- Q3 O! Q
pokeVariant[2].bstrVal = topicStr; ! A8 B' [/ |+ W( g9 Q! L % F z4 O+ x% L2 N5 X// Set the DISPPARAMS structure that holds the variant. ) Z5 z+ h2 x9 [, w0 P : a* l8 B2 I; m7 J( r; j0 h1 `7 U dp.rgvarg = pokeVariant;! M( _9 Q0 i5 C R G- F
dp.cArgs = 3;% H6 E, B8 k2 b- U, M; C2 X
dp.rgdispidNamedArgs = NULL;9 W2 P5 d+ [3 b3 b, Z
dp.cNamedArgs = 0;! {) Q% P K' @: L5 ^0 X5 Q
H/ X, k3 @$ |) i. l& P- E// Call IDispatch::Invoke() ) o+ R2 o& E9 N , w% c; e- C! B3 z& i hr = m_pDisp->Invoke(5 X5 B9 A) w' K v. x2 n' {8 h# O
pokeID,0 `9 L" ]) A3 q- {7 |
IID_NULL, 7 a* E7 u' I& T' r; c: e LOCALE_SYSTEM_DEFAULT, 5 `5 P) X0 F8 s- o3 h DISPATCH_METHOD, / \ _9 d; `9 W& _4 B& I4 W4 b &dp, `/ x9 [3 ]" {+ D% G8 T& B5 e
NULL,; _, C9 d2 r7 C8 J
&ei, a- {/ Q# K( b% Q5 L/ ]' _ L
&uiErr); " n/ D3 d5 C: V2 U5 k 1 {! R) ]: R7 ]! H SysFreeString(topicStr);2 d9 |0 A" J- n, i) z3 H' D
SysFreeString(itemStr); / U8 Y( P( A( D- E- b) B0 k SysFreeString(valueStr); / m# Y# d/ ^, `6 j " n* e5 ~ v# H; _" Q7 _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???2 w7 Z( A1 X7 j( t) z
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???? - p; u8 M1 V% j" b- q& c& w, ]! Q* ~ D
( T( u/ C+ u9 y' v* A' y
2.这是request的程序 / ?% @; f+ B& n3 u3 Z// Request a value from Extend e2 C! `0 V/ ?/ w- O7 D/ b//0 T3 E7 o% O! q' |
// Initialize the variant that will hold the BSTR. Set the variant's8 n+ R4 \. _- `& B: J2 N
// type flag to indicate the fact that this variant holds a BSTR. Place the & e& S5 q: o8 s# m, Y// BSTR into the variant structure. ' [/ G9 c( Z0 Z ' Q; }2 i4 Z" M) R& L) k' j1 z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); & W% R+ m- ^# w0 r0 \ ( c" B9 T' O/ N, T3 M8 x f
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ s& }6 i6 W/ i% n0 N: Z
VariantInit(&requestVariant[0]); " Y' a" T1 B. |* q$ s9 F R/ b
requestVariant[0].vt = VT_BSTR;) Z- x( @- ^8 m& I/ J2 Z
requestVariant[0].bstrVal = itemStr; # V. s6 `' A, o: b% s$ z3 N2 C) t# c( }/ t
topicStr = SysAllocString((WCHAR *) L"system");/ |! M# K7 P7 W3 _# D7 k0 o
VariantInit(&requestVariant[1]); - S# A' j- L; g0 h* G5 K* `
requestVariant[1].vt = VT_BSTR;) |1 i8 P9 g% k4 Z+ J1 |9 ^ f
requestVariant[1].bstrVal = topicStr; i. L8 `4 \( |# X5 n! q% G* h+ ~# \* @* F, E
// Set the DISPPARAMS structure that holds the variant. , m3 v! Q0 z: L8 P # ?; S" Q9 h0 ~) e+ z! C dp2.rgvarg = requestVariant;( a7 P# k+ v; a2 b$ O& D' I o
dp2.cArgs = 2; " z. x1 |- ~3 B3 ]. U" M dp2.rgdispidNamedArgs = NULL;: f: @& d: ~5 [" q
dp2.cNamedArgs = 0; # b8 P7 \. y, ?! a, F! I' o9 X" o; B0 O7 X
var.vt = VT_EMPTY; " p5 f$ s5 v& Z) K: c- x5 C: ?& A: l* \4 u% l+ t; G) C4 ^
// Call IDispatch::Invoke(), Z: s9 S2 k/ i( _, c8 K. @3 U0 t+ }
" x8 o) T# [" g$ T' a hr = m_pDisp->Invoke( + o0 ]1 r( b {6 q r% G requestID,: U# M% D3 n4 E
IID_NULL,7 R5 ?1 a5 D; V5 K& V
LOCALE_SYSTEM_DEFAULT,4 x6 y: u* f7 N/ @; i) ]! i S( r
DISPATCH_METHOD, - c0 b: k$ e8 e6 Y5 [; }: w &dp2, }/ R, Q. F( K/ }3 R/ b4 y &var,6 t7 D8 K1 L! y# Q+ @; f' S
&ei,: d: L; b) B# `! n$ B3 a
&uiErr); 0 p2 A/ x1 S' H+ q' T5 y1 y/ Z4 B+ v1 z( i8 w3 B
SysFreeString(topicStr); 8 I/ N2 I3 u! L2 _4 k' C: {1 }* I7 U SysFreeString(itemStr);3 Q2 P& ~4 x9 W' t7 M( u8 |2 m
请问该程序是获得extend里面的哪个值?% u8 a7 }8 q1 f: A E4 o% M8 }3 {
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????