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:5 n- @# W' X/ V" F% G, S
Name = (WCHAR *) L"Poke"; 6 d* b8 ?) t! N, s# C % ^$ Z9 t: y# y3 ^3 G/ x hr = m_pDisp->GetIDsOfNames (- I: u! a6 m; {4 h: ?" P
IID_NULL, // reserved+ x% j- ]( p. N) j
&Name, // Array of names to get IDs for / \% W6 S& q5 V" A2 V 1, // # of names in the array1 a+ _; M% I( @# u! s
LOCALE_SYSTEM_DEFAULT, // System locale 4 P6 n' X! z7 p7 } &pokeID); // Array of IDs to fill on output- R- Y" X0 y+ R& H& M9 v$ x
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if (hr) ! I$ |& C8 \. I, k { & d4 w5 S' R" j/ H6 l! K MessageBox ("Get Poke Unsuccessful");' s6 }3 ^$ s# Y
return; 6 _! b K5 t: G* \8 _ }+ T* @; Q5 Q: q& g# B1 h6 p7 ?2 v* ~
: O+ C8 R8 a. b7 F/**************************传递数据给extend**************************************/5 I, }$ ]; m# m( S" f
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( k! L2 l' }: A$ ~) O @" f/ m) B' E
valueStr = SysAllocString((WCHAR *) L"1232");9 \7 x3 h- b5 B
VariantInit(&pokeVariant[0]); ! h3 W" Z- e- e& D$ R0 T+ Q- [
pokeVariant[0].vt = VT_BSTR;1 R! S: Q/ O8 Z/ U" x1 c) y
pokeVariant[0].bstrVal = valueStr; : W. W' \5 B( D2 y# z. }$ ?! r+ j4 c9 b& z2 t1 O, z4 s- O
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 }! g( y7 N0 Q* h; `' q1 q, [8 U
VariantInit(&pokeVariant[1]); 6 _; ^* J# k/ d6 \! [# f9 c0 p
pokeVariant[1].vt = VT_BSTR; 8 u" W* m( M/ t4 ], ]5 q$ I pokeVariant[1].bstrVal = itemStr; n5 N7 K3 X# K) H/ d) e , {- y$ w% c. H topicStr = SysAllocString((WCHAR *) L"system"); 2 b9 Q$ X9 G6 S VariantInit(&pokeVariant[2]); : E% \9 p F, `, ~8 A- z pokeVariant[2].vt = VT_BSTR; 7 F( J! \. Z# S5 g% \; r2 A2 C pokeVariant[2].bstrVal = topicStr;/ [, k* |& y( ?6 v8 x/ x) b7 }
! k0 E- p. ^6 P8 J; j% a) \* b// Set the DISPPARAMS structure that holds the variant.7 n4 W" I/ s" ?' @% P& Z
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dp.rgvarg = pokeVariant;" E& a9 E, r8 D2 Y$ T9 p; q
dp.cArgs = 3;7 t- C+ r, Z; e( n! i
dp.rgdispidNamedArgs = NULL; 0 j5 O6 _' a3 `6 O- S# c dp.cNamedArgs = 0;* k6 q, n E9 n) c# W
6 t |0 N1 T" g/ v, l- Y+ [) l
// Call IDispatch::Invoke() # r9 }1 p: z2 \: g$ f9 \2 F9 p X o7 t) t) e" N1 `9 j+ W
hr = m_pDisp->Invoke( 0 Y2 M: [9 A O4 j# @ pokeID,& A e/ j9 w' ?, k2 J/ c
IID_NULL,, C- H: D" @ `1 ^- z6 H
LOCALE_SYSTEM_DEFAULT,5 u; b% y& w p$ o& U a: D+ D
DISPATCH_METHOD, 3 q- |( x# v" ?# P$ d7 K &dp,7 v6 q$ e; M2 C) p" ]! A, q! S
NULL,, |' d/ l8 J1 k9 F' t- G
&ei,* l2 A% d ^, o3 \2 A$ y
&uiErr);8 ?7 S* u6 [5 e& J
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SysFreeString(topicStr); , L% ?2 [1 T% Z- a0 b* w/ W SysFreeString(itemStr); - @+ f9 ^4 Z* X ^0 @& P SysFreeString(valueStr); : S7 M7 a) n* e6 h! h + H4 o: W# ^0 e5 B- j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???' N! S! |, y+ _2 G9 }, C
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????! n! ^3 A! w Z6 K# P9 d
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2.这是request的程序 ) }! R G3 t/ |) D% u' S, c// Request a value from Extend ( E5 G# K8 A, A) }2 h. n8 T2 y) ]// $ O! a) t: m( i7 O; {- y// Initialize the variant that will hold the BSTR. Set the variant's . U+ ~% E4 L" o7 r& t/ M// type flag to indicate the fact that this variant holds a BSTR. Place the }6 Y1 U+ k* e" M. X) r
// BSTR into the variant structure. / T9 f3 h& k {" x8 F. G# a: n4 y1 w0 X" l
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! ^+ q6 W7 I; n( h5 V; k- V
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 T: |1 e+ }* L VariantInit(&requestVariant[0]); ( c5 Y% _( V% b; L( M3 `3 E requestVariant[0].vt = VT_BSTR;5 i& u# I! E) P8 F
requestVariant[0].bstrVal = itemStr;" C+ H, a6 k0 e" G
9 a0 D/ d6 q) B0 k topicStr = SysAllocString((WCHAR *) L"system");( s- h' M. Q6 h0 J" Y8 f, a
VariantInit(&requestVariant[1]); " R8 @; j- W% b
requestVariant[1].vt = VT_BSTR;; x$ x) A( ?+ D6 G0 ~1 E! j
requestVariant[1].bstrVal = topicStr;* M E$ D l3 U. w! P
( C5 f" m+ T: K8 \1 X, d# A+ \8 ]// Set the DISPPARAMS structure that holds the variant. # H' T! x3 I4 n8 W6 { + }6 j/ l) Q" b8 v; S+ O dp2.rgvarg = requestVariant;9 e) H1 B4 Q9 W8 s* x3 D$ z" T
dp2.cArgs = 2; ! b x, e- v0 g0 t; b/ Q dp2.rgdispidNamedArgs = NULL; c' _: o& F# ~* F dp2.cNamedArgs = 0; ?! P! v. i; A+ ?; X/ G- R( T/ l( G
var.vt = VT_EMPTY;2 u% H$ m+ H- _, ]3 `
" K7 Y$ z) i9 b/ W// Call IDispatch::Invoke()) G8 ^1 ]# J3 ^; m+ a
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hr = m_pDisp->Invoke(& M7 l# W# Y" y+ B# P, |
requestID,# Q1 I; S5 W+ M/ m! Q9 U' Q& h
IID_NULL,' j5 G3 @, y* L8 E6 A
LOCALE_SYSTEM_DEFAULT, . S. m" W- A, c3 G l( ^ DISPATCH_METHOD,; g( S' g* E' P% K& R2 a6 [7 I2 l
&dp2, . T# o2 j! C* Y) M4 h' c5 ^ &var,+ r6 U( W5 z: v* z4 i. |5 l
&ei,. |! Q% N4 V( e5 c$ i" ]3 ]' o
&uiErr);1 q& K' Q2 E( N4 F( P! s- L
5 L. j- T- C( ^+ p/ v SysFreeString(topicStr);$ _# k7 h Q) Q% v* X [
SysFreeString(itemStr);; }8 u. U, a0 P1 v1 l; q9 p8 u7 w
请问该程序是获得extend里面的哪个值?+ I2 W! k( r, h) }: W
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????