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:* i7 s h- A* [" l
Name = (WCHAR *) L"Poke";$ A' ?( r4 n$ D1 M3 C$ T0 o4 p, w
0 D" _* c0 ~2 T" V: g# U hr = m_pDisp->GetIDsOfNames ( F$ S, }- V4 u! M" _% H
IID_NULL, // reserved " Z9 y6 G3 f% k7 d y" H0 p &Name, // Array of names to get IDs for) G2 v) m8 s0 ?; c) H
1, // # of names in the array 8 C2 ?+ I. A. y' N0 w LOCALE_SYSTEM_DEFAULT, // System locale5 e* N0 u6 J3 v
&pokeID); // Array of IDs to fill on output) P, ]2 P7 z+ `
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if (hr)! P/ _, I; _" Q' w
{ 1 \) q3 g( J# G: e* f* Q) n1 g MessageBox ("Get Poke Unsuccessful"); 1 t% P4 T# f7 ~# K) I: B return;* L2 [- B% ?+ c
} 1 t# K. ?1 f5 _9 q* f1 ~. w) I 9 g4 c) j2 [7 c/**************************传递数据给extend**************************************/% t# C! i) O! N, v4 b' o7 W5 _' }
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); a4 l( T. [4 a' t' }8 c
5 K# M' S; U7 R0 w1 R valueStr = SysAllocString((WCHAR *) L"1232"); # E' Z/ |8 U% O& S/ r H( K VariantInit(&pokeVariant[0]); - g( v/ R, F9 [0 D4 g6 _
pokeVariant[0].vt = VT_BSTR; ; K! L* C" ~/ h pokeVariant[0].bstrVal = valueStr; ' g$ @; V' l$ O1 C( R' I' J - r; m+ D3 ?0 V+ O itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 X+ p$ I" N0 k9 ^/ h. J VariantInit(&pokeVariant[1]); 5 I, t3 r# B' F5 s0 e0 s6 I# J pokeVariant[1].vt = VT_BSTR; ! w; x4 i* ?" n7 R( i2 j! \! ` pokeVariant[1].bstrVal = itemStr;! i9 a' S' Q2 ?
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topicStr = SysAllocString((WCHAR *) L"system"); - Q6 K2 ~% _9 y0 w VariantInit(&pokeVariant[2]); 8 I k# J5 `& s9 M
pokeVariant[2].vt = VT_BSTR; 3 l& [) W+ S$ c8 q0 Z pokeVariant[2].bstrVal = topicStr;# k8 a5 A/ v5 M$ N9 F! J
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// Set the DISPPARAMS structure that holds the variant. - K9 A4 I% z, I5 G! K$ L7 x / w2 w& M7 T% t! @# [ dp.rgvarg = pokeVariant; ) j8 b% `+ w/ A& V n dp.cArgs = 3; 1 f; `, |( D5 k, C dp.rgdispidNamedArgs = NULL; & A: F$ p) p6 c2 f dp.cNamedArgs = 0;. K, l* ^* i3 h* f( F/ Z7 n9 f, W
! |' W. i8 H1 R" | }// Call IDispatch::Invoke(). P) l+ P+ `3 T: K) U
5 g* k |1 W) t( N8 T. F hr = m_pDisp->Invoke( ' ~/ G) y% I) y0 I0 c& K& U% J pokeID,6 M. S6 E8 g6 ~; k
IID_NULL,& ?2 u" \. O3 N3 k6 o! a9 m3 T3 R
LOCALE_SYSTEM_DEFAULT, 8 h/ `( E8 P& [4 a DISPATCH_METHOD,9 R5 L2 o |: |- M$ b! H
&dp,* E( C( e" c3 B3 ?# M, E
NULL,- G9 ^ W: |& ]5 i- b- Z- P, o
&ei, " k+ ~$ |9 e& m+ r' ` &uiErr); u4 A2 ?0 F) m6 {+ K6 A
& U q g/ v" U SysFreeString(topicStr);8 o% }! R6 g3 b# T+ j/ b
SysFreeString(itemStr);! T: `& L H$ ]+ E0 }+ J
SysFreeString(valueStr);/ w" ^3 Z$ t. E7 ~( V
9 A# H: w. q3 P/ d' C1 ~0 _7 R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??? 8 A } L+ n& u1 L) w3 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????1 e8 N# V( a$ U$ @& F. G
. \6 Q" L" _0 [, a ; P2 U; b: s/ Q0 Q6 s; ?: \9 @2.这是request的程序 7 u" C+ V @ ~% ^8 Z// Request a value from Extend' f( z- ]# l1 X+ j
// 5 N. c2 c' j \6 O! R// Initialize the variant that will hold the BSTR. Set the variant's 6 z/ ^ s& T. S4 F. I% a// type flag to indicate the fact that this variant holds a BSTR. Place the4 g. x) U! A7 c
// BSTR into the variant structure./ l1 ^6 g; Q7 b0 Q. b1 h
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 A. W$ o+ _# e+ {; v9 e5 W! @- e
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + g# S- _% Q a& Q, `5 { VariantInit(&requestVariant[0]); 7 @0 ^3 g4 W/ A6 c& g! c4 d requestVariant[0].vt = VT_BSTR;1 T* u/ u9 t$ P& c5 J
requestVariant[0].bstrVal = itemStr;' g' s' M% M/ c9 [% K7 U. ^/ j
* b0 O1 I C. W$ C8 q topicStr = SysAllocString((WCHAR *) L"system"); ( {( t* Q5 L. I9 H VariantInit(&requestVariant[1]); 9 X) g( s N- r* `& U; b1 p" \ requestVariant[1].vt = VT_BSTR;5 o- ^& `4 q/ `( E
requestVariant[1].bstrVal = topicStr;1 Y$ [2 q+ h, n1 i( @
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// Set the DISPPARAMS structure that holds the variant. 0 M' d# \2 p2 b; v* E& o9 D7 k# b p7 `
dp2.rgvarg = requestVariant;. w0 c) j7 h2 s4 [% a
dp2.cArgs = 2; ! [+ \% q7 E! @/ Z, a dp2.rgdispidNamedArgs = NULL;9 |1 I, X0 T# ]; b6 m
dp2.cNamedArgs = 0; - M" g' A" ?% P" O" W) O* B9 k2 T1 H+ s M+ W v& f; f
var.vt = VT_EMPTY; : }3 V) `% [/ |0 ^% y% @. \ $ X, q" U2 p- |( k' Z4 E$ G: l% | I// Call IDispatch::Invoke()- L/ f: s) k6 D9 t
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hr = m_pDisp->Invoke(6 @( x1 S( s/ d7 } ~
requestID, 3 i7 l; O4 C6 Y4 G7 x+ [! Y4 \ IID_NULL,6 Z+ s Q1 u. S$ p
LOCALE_SYSTEM_DEFAULT,( ~3 k7 A* U3 t2 ]" _# X. I
DISPATCH_METHOD, w# T2 C3 e* l8 J' h( d: g
&dp2,5 s7 Y2 s1 L9 ^( s& A
&var, 4 N8 W7 Q2 N, ]" c &ei,4 @ h; j# L: t1 t. m
&uiErr);; U5 G* |, \. p6 U2 h1 X
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SysFreeString(topicStr);7 T+ m& j- _9 t6 B; J
SysFreeString(itemStr); . ]7 g$ u( _) s0 V7 i, s请问该程序是获得extend里面的哪个值? , B* K& P) x; k- S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????