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:* w# y( x+ H: o/ q+ X9 E
Name = (WCHAR *) L"Poke";9 d6 T9 d m" X" q9 S
' W+ ]- h; _0 e! @: D7 _ hr = m_pDisp->GetIDsOfNames ( / }" Z0 ]" Q3 z: w7 U& V IID_NULL, // reserved* ], k7 [- Y& d
&Name, // Array of names to get IDs for ( m. o8 y0 S8 b7 h3 }& a8 x" T1 _3 ]% @ 1, // # of names in the array $ v' J$ z8 E9 V. q2 P, T' K LOCALE_SYSTEM_DEFAULT, // System locale% q6 j0 a& v: ~4 M" t
&pokeID); // Array of IDs to fill on output# \+ f0 Z& a. Y! v. R. ~; d8 }. n
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if (hr) " s: f9 l$ M$ A0 U$ H {: w: u* p+ x( I" s6 M( q g
MessageBox ("Get Poke Unsuccessful");* i! S: \1 f1 O8 w+ T: x, v
return; 9 F, T2 W& x C; k1 Y }; s P. S& g0 R. m& g. m6 B
: w4 ]6 }4 m2 T5 }) |! ?7 h/**************************传递数据给extend**************************************/ ! f. G% |4 P5 R q! ` pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 p6 m, c/ S# X% N9 P8 } @$ W
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valueStr = SysAllocString((WCHAR *) L"1232");: I3 g% g& @) V& P" ]$ @# I# ~6 a
VariantInit(&pokeVariant[0]); Q8 `& ?7 q; x pokeVariant[0].vt = VT_BSTR;4 _' R& M8 Q( i9 C5 |
pokeVariant[0].bstrVal = valueStr;2 K P* `, y/ U& N9 K6 O: p! n
: P+ B4 ^# o% a1 D. W/ f itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; O* J/ f2 X# ` VariantInit(&pokeVariant[1]); 9 D6 z: O% S1 f/ a9 |7 ?- i0 s8 u
pokeVariant[1].vt = VT_BSTR; 1 E. ~; X7 |: _ pokeVariant[1].bstrVal = itemStr;6 E3 z; K0 y) w. j j/ M) w' P8 u
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topicStr = SysAllocString((WCHAR *) L"system"); 1 w2 j9 C, X `: q0 ~5 h2 m VariantInit(&pokeVariant[2]); ' U8 H0 i+ |2 W7 u3 S" Z1 u, N
pokeVariant[2].vt = VT_BSTR; - p+ f& K1 L) e/ Y0 C* i pokeVariant[2].bstrVal = topicStr; ) V$ }' d% m2 ^0 ^% {/ X7 T3 h2 K m, s e
// Set the DISPPARAMS structure that holds the variant. P; u1 W; p- M
; c! i6 U8 M; A3 i I dp.rgvarg = pokeVariant; , C" m6 V1 t9 z dp.cArgs = 3; - m9 O' h" |6 ]( o1 \ dp.rgdispidNamedArgs = NULL;7 J3 h! L1 i5 s9 h1 A) h% `0 t; r
dp.cNamedArgs = 0;0 }3 z, G0 ~6 S$ V$ M7 m6 q% h0 q
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// Call IDispatch::Invoke(): }1 y9 y/ \% |
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hr = m_pDisp->Invoke( $ k4 K3 b3 [/ Z0 P; L, b6 A# x pokeID,* ?7 }' J6 o6 J" u# l
IID_NULL, . c4 I/ D3 @. [5 c4 w( |4 P LOCALE_SYSTEM_DEFAULT,1 v. c( u1 a9 `) I0 }2 v7 J4 v% p9 E
DISPATCH_METHOD, 7 C( i/ k6 ^5 Q; r& j/ R8 U0 Z; A &dp, 7 @3 N/ w" x6 y3 e NULL, $ N. a) k/ U b8 ` &ei,) Q8 Q+ U5 u j4 O
&uiErr);3 B, T2 C) ~( i
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SysFreeString(topicStr);4 r* u8 J1 C0 X7 W6 |
SysFreeString(itemStr);3 {3 U$ s6 y4 m( [8 t# F+ ~
SysFreeString(valueStr);: j- {9 C8 i/ E! |% }
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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??? 4 y4 N! c' K% A o t5 r. N* Q4 M; V4 E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???? . Q; B/ ^& C; `1 {* g* c' [! X* r* |2 w* A; c% v6 h1 K! y# }
9 z8 y9 X$ k: z' n2.这是request的程序 ! ?( k- E. W6 ?! T// Request a value from Extend, Y6 B3 Y$ P4 f1 \" S1 D. O3 @3 B) v
//4 h w, D8 ?* G
// Initialize the variant that will hold the BSTR. Set the variant's " O. j$ ], g; t: x0 ?// type flag to indicate the fact that this variant holds a BSTR. Place the 6 @* g* Y# K- N) ~* w% `6 v0 w// BSTR into the variant structure.! M3 b* t* e" n. W! F+ v# O
/ `* B) W l8 Z- ] requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ( R, Z7 U0 }2 N6 r1 G4 k , _; }' v) u8 q" R8 @8 q( @2 I# E
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . _) t$ u( |2 Y7 t( t VariantInit(&requestVariant[0]); ' r1 K$ E g" F! g5 [" ^3 \
requestVariant[0].vt = VT_BSTR;# c5 z# j& c; t# K, U# l5 d1 I- I
requestVariant[0].bstrVal = itemStr;6 ?- k6 P6 H7 f- m# G
" A, h- w% ~5 q3 `3 E* {
topicStr = SysAllocString((WCHAR *) L"system");- P' o: ?/ J/ O; U
VariantInit(&requestVariant[1]); + Q) O: U3 e+ y4 n! c, }0 L requestVariant[1].vt = VT_BSTR; 2 |! H0 u, {0 ?1 b7 Q; `4 h requestVariant[1].bstrVal = topicStr;: D8 i3 d' c+ W+ N/ Z8 f* d- [
; p) _; e; l6 L8 O// Set the DISPPARAMS structure that holds the variant.6 t5 \* K' p; g* {& ^
8 N; ]; b. s. t dp2.rgvarg = requestVariant;1 }+ T8 ~, W0 r1 Q7 u& u0 g
dp2.cArgs = 2; 5 j5 h+ T5 _8 w: g! K; ? dp2.rgdispidNamedArgs = NULL; $ x9 z- {2 z8 q2 T' \ dp2.cNamedArgs = 0; / i( Q7 Z& z) b, q; Q% r7 M0 t0 G9 s2 O; \4 E
var.vt = VT_EMPTY;( t H; l. F4 c; o1 b# C% c
4 l7 T; ^" W7 ]( Y' v4 ^// Call IDispatch::Invoke(), [; \# |2 h) Q2 z: a) i
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hr = m_pDisp->Invoke( ' M7 A* f* ]* Y4 R0 o$ } requestID,* b, c+ ?. _7 k1 Q- t
IID_NULL,) G6 }4 T0 {5 w$ f& l
LOCALE_SYSTEM_DEFAULT,& f: E' w: B: O% d4 i4 }& X2 k2 D
DISPATCH_METHOD, # F9 `0 w- G- i- s3 B: e3 v &dp2, ) O. b9 [, F3 ^" [0 Q/ r/ V &var, ' I H) F( V( \/ ~/ A5 h &ei, - A7 u) e! D6 ?/ j/ E &uiErr); + b- X \7 H8 a( o8 N: M4 l / ^% R4 W; E' l2 m4 k" P SysFreeString(topicStr); 6 E# H6 Q: N6 C2 O0 e SysFreeString(itemStr); ; ~, Q( d$ O% t" h4 v请问该程序是获得extend里面的哪个值?% |( }& k. H G( _1 g$ z
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????