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:/ `$ Q7 ?6 P- F. t+ W7 w+ Q6 S
Name = (WCHAR *) L"Poke"; ! g+ L+ q+ ]1 |) q t! I, ^5 V, A
hr = m_pDisp->GetIDsOfNames ( 4 |: d5 z' z: @7 p4 T. i, Q p IID_NULL, // reserved3 G$ f3 r+ M; R
&Name, // Array of names to get IDs for 0 l* f9 f5 L" G M/ @ 1, // # of names in the array2 N, f8 _2 {2 Q2 ~; r
LOCALE_SYSTEM_DEFAULT, // System locale, c6 Z9 K- o/ E& t
&pokeID); // Array of IDs to fill on output % A. ?' ` `- g$ L$ a7 o3 z2 G$ S - X* s- H j+ y if (hr) ; H, V/ G/ @5 s. W* w { , M3 l* n* x, w6 a u8 V) E MessageBox ("Get Poke Unsuccessful");" U- }3 l1 e4 e6 `0 q w
return; , U' P1 X/ A5 X# Y1 a }( Z+ L) E, Z* @2 [: |8 |- p3 O( `
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/**************************传递数据给extend**************************************/ 3 D' p2 _9 M( {1 P7 g pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ r& `2 u3 R: R: ~1 [$ C
( H" ^# z" ~; s) q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" \! Y$ Y8 C3 Z. g; R' F) M
VariantInit(&pokeVariant[1]); " x0 a* k' H7 T2 S7 X. Y* s0 i# L
pokeVariant[1].vt = VT_BSTR; 1 Q" z3 a# e% j2 [) @0 W6 v pokeVariant[1].bstrVal = itemStr; / S9 e$ J! \$ O5 S" a$ ] 1 l3 S7 [& k0 e/ y* k; Q6 K$ R topicStr = SysAllocString((WCHAR *) L"system"); % D8 N' {7 u Z R. [. m& ]: | VariantInit(&pokeVariant[2]); + ?. V& X4 ?) L+ |" P9 H& v3 r9 u pokeVariant[2].vt = VT_BSTR;+ ?' {" [% ^' |2 s3 r
pokeVariant[2].bstrVal = topicStr; & @7 a: `4 s$ N 3 @: u. e- \9 ^// Set the DISPPARAMS structure that holds the variant.7 e: F5 A9 q; P
o$ w& K5 e" P* P5 N, n. }
dp.rgvarg = pokeVariant;) C* N' F( h4 D6 c" e i- g
dp.cArgs = 3;. A8 v- c h6 t
dp.rgdispidNamedArgs = NULL; 2 j4 Y& `! t# Q, w9 [2 b dp.cNamedArgs = 0;( v0 G6 P0 M; \+ {2 ~8 q* Z5 K) d
H( m/ f5 `; M. W
// Call IDispatch::Invoke() 2 N" y, M8 a3 ~ | 9 D# |3 F6 f( E7 M hr = m_pDisp->Invoke(* ]9 f( V p( x# v; L: }2 C- B
pokeID,, G" {* V$ R! ~$ c' H' x
IID_NULL, ; o$ O2 K$ F6 O LOCALE_SYSTEM_DEFAULT,3 X* [6 |) n' h. ^% `
DISPATCH_METHOD, ' N) j4 G5 Z( W# Z8 {' c &dp, : [3 {. H0 m% T6 Y; | NULL, / T& ?5 N9 }# W# e7 b3 V) X &ei, " ^! T) N* h/ _5 X' o &uiErr); / [4 l3 u5 k0 T( O4 q" v 7 \ G T( Q5 Q- r2 d8 y' O- v! \ SysFreeString(topicStr); % y' B9 N% r0 l) a+ x m3 t2 f1 q$ D SysFreeString(itemStr); ' c* G7 A0 N9 q: m/ w( r6 S SysFreeString(valueStr); 9 Q n5 @4 N' a0 d 0 T- s |+ T& v5 {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( ` k( H8 T, g: T, P
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????# M& T6 h& u8 s2 |' y# @
3 {9 @9 p9 D7 ]! v. h' b * X8 A# g* B2 R& H% K. F9 i2.这是request的程序 # f9 T, p% A* V8 R" v' R// Request a value from Extend ' h* R2 L2 u S: d( q' f// % R8 V1 m6 X8 k// Initialize the variant that will hold the BSTR. Set the variant's8 F$ g/ o( T ^3 e2 g; \+ S( p1 \
// type flag to indicate the fact that this variant holds a BSTR. Place the; a1 g; E4 n y3 L2 e
// BSTR into the variant structure. , ~; J) U- U' Q5 c2 c 6 G0 i/ I. |. y& s requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); - w& s+ V3 `6 o6 B/ ]5 Y 7 N' }: e( I" U
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 g9 N: Z5 I1 \3 |( q
VariantInit(&requestVariant[0]); ; c m$ x; i- d requestVariant[0].vt = VT_BSTR; * D8 e# q; Z0 N1 [ requestVariant[0].bstrVal = itemStr; a S0 `* X7 u
+ M. {9 ~7 V- ~* O! k topicStr = SysAllocString((WCHAR *) L"system");% W0 \7 w7 k5 U
VariantInit(&requestVariant[1]); * r" ?) ]# |! `9 @: i requestVariant[1].vt = VT_BSTR; ) d( \ I& p+ d9 J, U$ C requestVariant[1].bstrVal = topicStr;% U2 t7 i% N: g3 }* S3 A
" q" D2 [/ t1 ]1 x3 _* _/ h' z2 G// Set the DISPPARAMS structure that holds the variant. / Q! v, G, ~3 ?/ s0 R; e1 j6 G0 j& w$ }* n: e$ k
dp2.rgvarg = requestVariant; _( ]* T- O+ u! H
dp2.cArgs = 2; & f. c0 e* j) t% Y dp2.rgdispidNamedArgs = NULL;' h# p" _ T: q1 l- B
dp2.cNamedArgs = 0; R! q- {4 w9 E! y* |9 I
. L- z/ m; w& B var.vt = VT_EMPTY;! M& }2 _" G$ k2 y6 P
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// Call IDispatch::Invoke() - m1 U3 ~$ E* c4 A0 ~4 C, i8 i" l
hr = m_pDisp->Invoke( 7 X6 z: q8 [' i1 O" J1 X requestID, * F1 y: \3 V- l- I IID_NULL,/ ~. v4 n+ h/ |
LOCALE_SYSTEM_DEFAULT,' I1 Q5 q1 z2 G7 h0 k$ i
DISPATCH_METHOD, 1 [3 j* k) v, ]2 p &dp2, 8 Q C% M, F) {2 @, C9 { &var,4 ~" S5 |7 i# r$ E& Y- V
&ei,3 {. e, S0 n! d* Z
&uiErr);- ^, X% O0 y6 h+ B/ e
5 N7 ]+ G& K. l" e4 { SysFreeString(topicStr);; s8 }( [; d t* U' u
SysFreeString(itemStr); # V+ W: b0 e" Y7 q# m4 p7 K请问该程序是获得extend里面的哪个值?; x6 b E( N1 `6 j* C" H: D
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????