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: - B2 Q8 h7 O& s& D2 C# J; EName = (WCHAR *) L"Poke"; 4 [; D: ?7 i( v8 r! ~ 9 f0 x% m' S8 ]3 F- u5 [ hr = m_pDisp->GetIDsOfNames ( # I. Y8 D3 w. ^' J! W/ |, _/ I IID_NULL, // reserved/ }, E" g7 a5 P& z/ E# o
&Name, // Array of names to get IDs for # d2 l0 `8 q! D1 H& O 1, // # of names in the array3 G _$ o! `' w$ S
LOCALE_SYSTEM_DEFAULT, // System locale - F+ e8 O) K5 V &pokeID); // Array of IDs to fill on output & q( ]9 R, m# C" s0 u # O; u. R& `; X' ? Q if (hr) 1 O S0 y1 o6 E: s" @) P- n4 } {7 [' t0 q* S: |1 c8 p- y- b9 \; _
MessageBox ("Get Poke Unsuccessful"); L* b5 o# D: s' \" i2 P4 h5 Z
return;) D' S6 P, i0 ?7 d' X
} ?% b9 c, i% i; S + i( b5 H5 ?8 A/**************************传递数据给extend**************************************/ $ i# g$ D3 S9 ]! P pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);2 @+ @* O! p7 T0 u$ ?
8 r0 r4 A. z0 p6 |; n: ]4 ?8 G valueStr = SysAllocString((WCHAR *) L"1232"); ; V" n3 }1 N8 x; L% _) J% J4 l VariantInit(&pokeVariant[0]); ' m) Q# X o& J0 ]3 y& [0 O: i( D( V
pokeVariant[0].vt = VT_BSTR;+ J0 h+ T% U% [3 L* a6 }
pokeVariant[0].bstrVal = valueStr;1 w% b a) Q" `& z$ I
/ u/ ~5 C2 j* T! a itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 \/ B# |* r" z2 Z
VariantInit(&pokeVariant[1]); $ F$ Q1 Z! i! R1 d+ u; l pokeVariant[1].vt = VT_BSTR;6 a# B& c) f7 c7 q" R! G* s
pokeVariant[1].bstrVal = itemStr; 8 u) F6 j; X6 g7 |4 m4 H3 l ( ]: d! i7 X# s* P9 \3 q+ V& V topicStr = SysAllocString((WCHAR *) L"system"); * X# d$ |5 s$ b9 N Q- G! K VariantInit(&pokeVariant[2]); 1 q- o: V" e4 ?/ |
pokeVariant[2].vt = VT_BSTR; 0 n+ `8 E4 u g3 s7 o- N pokeVariant[2].bstrVal = topicStr;) k- H) g7 }% K* l
) a1 p7 x% R% Z: A& Q2 I// Set the DISPPARAMS structure that holds the variant. 5 b/ m0 A4 z7 p# c 6 f% h5 |! W& N& Z+ p4 [8 L! o5 } dp.rgvarg = pokeVariant;' a1 f/ \* ?7 w# B* `
dp.cArgs = 3; $ L3 v }4 v: C, \' T$ A5 { dp.rgdispidNamedArgs = NULL; + X* h& y R% ~, L) J9 ~ dp.cNamedArgs = 0;1 R' y4 v5 i2 T \" X2 m; |0 v6 i; ]5 V
! W% s1 ?7 A3 W/ ]3 _. k) R
// Call IDispatch::Invoke()6 V0 }+ S! w; @5 r L
6 `' k# Q1 N: h3 l8 B hr = m_pDisp->Invoke(' x9 ]4 E# X5 U. J0 |; w: c/ L. Q
pokeID, ! t+ q& v" N7 Z# u IID_NULL, ) X& J/ Q$ O9 J5 j0 g LOCALE_SYSTEM_DEFAULT, & D' d6 s+ J: c DISPATCH_METHOD, 2 k! F( h8 c2 E" [' Y &dp, : Y5 v# C; z! T5 L# @" B3 A NULL, o+ [4 w6 P, p8 _' A
&ei,$ w; a. ?! S4 s0 i
&uiErr);/ Q: b) Z4 I/ u! ?+ [5 W
; `0 g3 p# y$ L7 M# o
SysFreeString(topicStr); 1 l: j# M% H( r. b SysFreeString(itemStr);/ @* r* b D0 U1 m
SysFreeString(valueStr); 6 \* {$ h1 W2 L4 Y7 K& | 4 P w' k) X2 P2 s' B2 T# O$ b0 H0 ]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 n5 Z$ K2 C8 q- w
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???? . }" e4 B( b9 C3 B K8 ]4 t & p, T3 ^: J# k9 K% W7 J0 s & _, B7 ^3 u, c- r( Y$ ]2.这是request的程序! T9 \; a+ i* N w3 [1 j
// Request a value from Extend0 y/ M9 o& h6 r% C
//$ q1 f9 c! d. \3 {$ d
// Initialize the variant that will hold the BSTR. Set the variant's 3 e% B. V$ H; Q, B* }' a! M// type flag to indicate the fact that this variant holds a BSTR. Place the . i: p2 u" K, P5 T Y- e) j# M// BSTR into the variant structure.2 g7 R8 n8 t) S! w
( p4 Q' _' c4 s: a& i
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 Z# Q, F* |! Q2 }2 _0 d4 d
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; A& D3 ]4 |1 u VariantInit(&requestVariant[0]); 6 `! k# j) S" o6 o# P requestVariant[0].vt = VT_BSTR; h" } Q! i5 v- D* o requestVariant[0].bstrVal = itemStr; 1 ]/ y2 V U, l% O) ?1 ~( K W 2 j4 f6 o0 f0 V" @: W" [ topicStr = SysAllocString((WCHAR *) L"system");" R5 H S0 N! L- o$ H
VariantInit(&requestVariant[1]); ; V% O+ }2 n6 g o requestVariant[1].vt = VT_BSTR;5 M, E+ g' I# B' a9 v
requestVariant[1].bstrVal = topicStr;" E, `- Y8 {. N: P) J0 G7 i
2 Y$ k( A, u4 S, ?// Set the DISPPARAMS structure that holds the variant./ J% w; R$ \# Z* O. Y L N9 H I
8 S! u1 F; z1 S# Z) V
dp2.rgvarg = requestVariant; & ?+ f! \% S( f5 W. R( ~ dp2.cArgs = 2;% z9 d+ b ~) {3 |" p
dp2.rgdispidNamedArgs = NULL; ; k$ v$ n) |$ p. B" l6 } dp2.cNamedArgs = 0; - q/ C0 |0 l0 P* O/ k2 r% x" h+ e- W. z! i% E
var.vt = VT_EMPTY; % a. b/ h& G" M, ^6 H+ |4 }% D
// Call IDispatch::Invoke() 8 d) b) w; p" Q- Z. l, w. G" f7 h0 b- W5 r8 p
hr = m_pDisp->Invoke( 2 @) k6 Z3 V/ _ requestID, : K' J! t; g& x g x7 w5 e IID_NULL, v% x9 ^; j+ c- X
LOCALE_SYSTEM_DEFAULT, + |% ?7 S9 k( @: Z DISPATCH_METHOD,5 i; h- O; v" V6 q2 Q5 V
&dp2,3 T( W9 x7 a6 x# a: k% V B
&var, + S" ^; M4 }0 n6 ^ &ei,( W1 `! w4 v" e* B/ c# Y) O
&uiErr);2 V! U: ^ K8 I& m3 T( E
4 E& b2 t3 Q; y. S, v+ O SysFreeString(topicStr);5 n2 w, q+ v5 O) q/ B
SysFreeString(itemStr); ) y A$ Y+ _6 B/ E; Z请问该程序是获得extend里面的哪个值?. B/ U% y; {3 m
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????