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:8 M2 a7 @5 k4 U9 e" m$ F# u+ J" p
Name = (WCHAR *) L"Poke";9 i$ R1 n# S2 F7 ]7 ~3 `9 S8 H
. o1 f/ H1 o: O9 C8 Y
hr = m_pDisp->GetIDsOfNames ( / f& W# @7 G, e9 Y+ S& A* h0 U _ IID_NULL, // reserved 3 o- p+ W* K4 V &Name, // Array of names to get IDs for, C/ L. E. k" h2 O& v
1, // # of names in the array, U: I3 D8 y* J5 T1 L" l) x7 \
LOCALE_SYSTEM_DEFAULT, // System locale) L, i9 [2 [" @! X
&pokeID); // Array of IDs to fill on output - E1 z& \2 r) Z" p0 l 3 U" _9 K8 c' g, g
if (hr) 8 V5 a% G. K0 F, U; @ { * L1 ^7 u) k0 b MessageBox ("Get Poke Unsuccessful");$ H& V" d& T3 W' a# G! g& |
return;! K; [3 O; C4 s. w
}0 ]# m: c& a: Y! F' d6 s& _
( Z% `* R [8 z S. S3 `
/**************************传递数据给extend**************************************/7 x% j& F6 ?( V) X7 X2 p
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 s w' K: x. l' a0 g3 M
% _% R, z+ T& Q4 q2 d9 ~
valueStr = SysAllocString((WCHAR *) L"1232");7 Y3 s9 ?& J: J h( Z8 U. l4 @% g
VariantInit(&pokeVariant[0]); " R% `' I- v) R2 f# w2 q3 R pokeVariant[0].vt = VT_BSTR;+ Y& l0 W. d$ [- E, [8 u" z
pokeVariant[0].bstrVal = valueStr;2 C( b" g( r( V( z, [) V& q
3 n7 ^/ Y% X/ ~, \, p
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 s( t& N8 a: i4 v ?
VariantInit(&pokeVariant[1]); ) k1 {, c( j: L; Z Y+ M pokeVariant[1].vt = VT_BSTR; 9 `" r3 G5 Y: @ pokeVariant[1].bstrVal = itemStr;: k# I z* a5 x
% N, p t2 {' H, H1 G- y1 l
topicStr = SysAllocString((WCHAR *) L"system"); + B! i' s. t( W VariantInit(&pokeVariant[2]); 9 f: z/ |. s+ H) Z' q; \
pokeVariant[2].vt = VT_BSTR;: @/ a. i0 Q2 D
pokeVariant[2].bstrVal = topicStr; & L$ U+ Y+ y+ M1 F0 c5 a7 b9 N7 T+ U
// Set the DISPPARAMS structure that holds the variant. " V! G; o; S# T w) V% B 0 G6 m2 i+ P" e dp.rgvarg = pokeVariant; ; z1 Q; b' q* n' T dp.cArgs = 3;. U7 a) {% v3 e) ^$ ~
dp.rgdispidNamedArgs = NULL; 8 S+ ? E" v) h# i% g& C' c- n dp.cNamedArgs = 0; ; i1 `2 Y! Z2 h% N% s- h 2 R0 A& ?" B9 _8 n. y4 s7 M// Call IDispatch::Invoke(): O' P( i6 a0 l6 M4 \7 J
% b' W1 f( y9 e
hr = m_pDisp->Invoke( % R) y# m0 a" B& h( k pokeID, 3 ~4 L7 J9 S6 W d) B" z9 G IID_NULL, z0 H7 r' A; @. w1 c. Q7 N LOCALE_SYSTEM_DEFAULT, 3 t7 t% |$ Q! _ ?# n N/ V DISPATCH_METHOD,: `7 p6 j1 S/ f" C1 Z- ~8 I2 i
&dp,% W- @8 V$ K. ?- F# ]; ?, N) d# b
NULL,9 y0 `2 K* E5 ?( R+ |
&ei, 3 m M' J( l; d3 c) `# S O& D &uiErr); 6 E9 R6 Y4 `% I: r7 A# N3 J& l 0 N. r8 V) P" Y) G+ V SysFreeString(topicStr);$ c; P0 `3 y! i
SysFreeString(itemStr); 9 D! p9 n( I% ^9 [: W SysFreeString(valueStr); 6 G( D( m' l- g1 v' M' _# h8 m" P * F2 f" a4 G% G, \2 D/ u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??? - @- ~6 U) n! j6 |7 x) X5 U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????# w c2 e; _% t
. Y! u1 t; Q3 \ ~/ X. c+ K3 O8 y, B, v# y1 _7 D
2.这是request的程序 J( O: m {& [2 }
// Request a value from Extend 5 @" t) ?* B9 \# p \5 q//4 e0 T' \. K0 z4 E& N8 M1 V, `
// Initialize the variant that will hold the BSTR. Set the variant's w" A6 @8 I# h+ m. }// type flag to indicate the fact that this variant holds a BSTR. Place the1 |: t7 x# F3 V& |' M% i! E
// BSTR into the variant structure.% f( W2 y3 t7 L- d0 T' X
, K) A: }# L: d. j requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);8 D" r: f5 E9 a% A9 L1 Z
" @. I( z" G4 P4 x
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" f: U* J- e% |# @- m6 G9 C
VariantInit(&requestVariant[0]); " |. I) _6 ~: f' K" i% b0 D requestVariant[0].vt = VT_BSTR;( b! M& ]( y, M0 N$ V' d
requestVariant[0].bstrVal = itemStr; . B: J; o* g. H( q) F' z/ f) S) Z+ S% j, r2 n6 D( P
topicStr = SysAllocString((WCHAR *) L"system");6 T5 Z4 J1 B( U/ T2 E5 Z5 E8 j
VariantInit(&requestVariant[1]); . E# \; I$ S5 v; G- c$ V5 b
requestVariant[1].vt = VT_BSTR; 1 ]6 C8 T. O5 J, q: z requestVariant[1].bstrVal = topicStr;% z# K7 v4 X/ m% {+ j3 e
. o" E, j8 x; a" X) [// Set the DISPPARAMS structure that holds the variant.6 B' |; E+ G) Y) j" A0 Y
: Q j* e* Z+ E& ], ? dp2.rgvarg = requestVariant; " M9 U& K8 o& B/ [% R D dp2.cArgs = 2; / U5 S4 k2 ^$ W9 }: d" G6 c3 @ dp2.rgdispidNamedArgs = NULL;9 ~1 [* e, s/ K
dp2.cNamedArgs = 0;, a$ }* O4 h M2 ~9 t
1 [, k: \4 I7 [9 P var.vt = VT_EMPTY; * M% a% `4 z7 a) [* X. @) f) M3 R4 k" q/ q8 C
// Call IDispatch::Invoke() 6 ^% p& N( M. [2 \6 @7 l , N) f/ g' W" P: k5 F hr = m_pDisp->Invoke( 3 ]- U4 ?; n, s$ B/ Q# |( W. S requestID, - g% b$ i7 \7 r6 J IID_NULL, 4 E+ R7 D8 b4 l: @& b0 x LOCALE_SYSTEM_DEFAULT,8 f; s' a9 }3 D6 W G
DISPATCH_METHOD,5 ~) o: R, m+ L8 V
&dp2, 7 r! ^5 Q0 p6 K$ X3 [ &var, 6 X2 B) x% N( P% d7 D, m &ei, 2 D& S. K# S& L1 ]' j! I &uiErr); " H7 g' `0 J6 x! G - {/ w* b2 y+ [) y: L' { SysFreeString(topicStr);2 G/ d2 O4 F1 x; T9 M
SysFreeString(itemStr);4 b4 J f) u$ S$ ^) k6 S
请问该程序是获得extend里面的哪个值? % E# F8 {* b( ?7 X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????