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: , E& U1 ^3 [& J: z3 J# mName = (WCHAR *) L"Poke";8 j6 I. ]: C5 m9 z$ b0 o7 f U
; z. Q& N7 b. a6 k! n1 t: m+ |9 e hr = m_pDisp->GetIDsOfNames (% Z0 L* A8 V% ]& s. C
IID_NULL, // reserved 2 b6 w; T/ w1 S( R8 y% D) q& r &Name, // Array of names to get IDs for ( v) X$ ~$ i P7 `9 Y 1, // # of names in the array 8 V4 t9 U8 K4 M$ R% c! m LOCALE_SYSTEM_DEFAULT, // System locale : K$ f3 ~# p) R( x &pokeID); // Array of IDs to fill on output! o# e& Q6 K1 @1 Q
$ E: y [1 K" h4 F; k+ W$ a if (hr) * W. d( Q% ?( B# J {, {3 p6 b6 S n) [
MessageBox ("Get Poke Unsuccessful"); / p7 X2 I7 i" F5 P return;' ~" G- Y$ S5 w2 P% L3 b
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+ }6 x. q# P+ }1 t1 J/**************************传递数据给extend**************************************/ # w. h: {/ ~0 w pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);) U" m- g1 Z7 o; [% h
* u( y2 Q) A9 `, t3 F" i0 b valueStr = SysAllocString((WCHAR *) L"1232"); / J1 o* ^7 C; o5 @4 x- D VariantInit(&pokeVariant[0]); 8 X. A! W. i% N" a pokeVariant[0].vt = VT_BSTR; 3 X( M* Y! K$ B* O pokeVariant[0].bstrVal = valueStr;. W& k+ S% H& D, K) o
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: G, {. t U$ u7 a
VariantInit(&pokeVariant[1]); 5 ?5 a2 J$ n0 \
pokeVariant[1].vt = VT_BSTR;& w- S8 _" q: \& o4 V
pokeVariant[1].bstrVal = itemStr;! E2 ]5 U% r+ s( w: r* y
6 y( u/ A: I) f# R- N topicStr = SysAllocString((WCHAR *) L"system"); - t9 J3 m9 k& l6 ]9 }& j7 U+ j: s VariantInit(&pokeVariant[2]); 9 R" ?. x. W, I; x! U pokeVariant[2].vt = VT_BSTR;; m7 o5 v" Y# Q, g( B7 f
pokeVariant[2].bstrVal = topicStr; o/ `+ t: |( H' t
( `/ b) D3 K3 G8 A6 A// Set the DISPPARAMS structure that holds the variant.6 r- b" c; \) D1 W
4 v& _; @: i3 I9 h. a) M! `" F dp.rgvarg = pokeVariant;, Y8 f# O) Y3 Q7 n) ^9 v
dp.cArgs = 3; ; C7 g7 l- e" ~2 k w- n# a dp.rgdispidNamedArgs = NULL;$ L5 q2 S8 b5 t$ m+ ]- t
dp.cNamedArgs = 0; & b, u1 J* @. J7 e% ~) N ) p' q. n9 }% B" Z. s$ N// Call IDispatch::Invoke()" [8 {5 m: Y- N/ G
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hr = m_pDisp->Invoke( + |: e0 e/ I g( N8 R pokeID,8 q8 z- i% H* |. x7 }
IID_NULL, 3 A; D9 h, |$ Y+ f LOCALE_SYSTEM_DEFAULT,: H M' j ?% z- t. L
DISPATCH_METHOD,9 W) ~4 B3 P. X4 X6 Z! K5 |- }
&dp, 1 x1 _* V8 V# B) |& H NULL,) Y. v! ~. L3 f; ?
&ei, ! _5 [1 m8 k) _( ?, T8 k" O" E &uiErr); w+ t/ p% B4 V6 q. P4 |4 D" H" y# U4 f* v8 G, L
SysFreeString(topicStr); / c/ E/ u/ i* R7 ]3 G( X9 \) d/ {& }0 x SysFreeString(itemStr); 7 l5 D8 k& O7 M! p! s5 G$ v- h SysFreeString(valueStr); 5 c L- H) O! g% r; @8 {" x: P4 c& C
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??? ( [3 V6 C7 P* A5 d) M# u* `1 P3 Z- 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????7 m9 C$ ]6 l2 e7 s) e
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2.这是request的程序 7 M9 ? v+ q% n# \3 p// Request a value from Extend 9 P$ Q8 [ y, V1 Y5 P" w! O// 7 c* n9 l9 _8 V ]// Initialize the variant that will hold the BSTR. Set the variant's2 }+ S8 d0 I7 g2 y8 k3 q4 m2 ~
// type flag to indicate the fact that this variant holds a BSTR. Place the1 d; ]1 R7 f. D' M3 s a2 ]6 Q
// BSTR into the variant structure. 4 [3 Y" ?, C: D+ w: b( t$ S$ S* B5 N7 \; d: {$ T: {
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ y( {* p1 \7 M- G1 K- m4 C y1 W
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 [3 N- E- T1 ]5 t VariantInit(&requestVariant[0]); 1 f7 g0 e4 S% k: j4 F9 ? requestVariant[0].vt = VT_BSTR; 2 ~% E- w& h) }! U# p& y; V requestVariant[0].bstrVal = itemStr;3 v! g- S1 d- l
+ p0 k( r w: N, [ topicStr = SysAllocString((WCHAR *) L"system"); # ]( H+ a q u3 w; Q+ B# u4 y VariantInit(&requestVariant[1]); ) `& s3 K; h7 U7 H, c0 l
requestVariant[1].vt = VT_BSTR;* T: u$ u5 N: z( v* }% L$ c
requestVariant[1].bstrVal = topicStr;: e4 i3 x* v; q0 W; p
; k0 h9 f4 E4 r( w7 q0 R# t// Set the DISPPARAMS structure that holds the variant. : ]" J; W6 I. A( B. E# v4 ~( |/ ~& h4 e( K/ e) o+ s4 d/ R
dp2.rgvarg = requestVariant; ) q G& z* e( l' d x9 F! ^# d dp2.cArgs = 2; $ [9 Z! } ^9 Z" B dp2.rgdispidNamedArgs = NULL; ) |" A$ K+ t3 R) |( U8 P, _3 f dp2.cNamedArgs = 0;: I9 |/ O& \: X# e0 i: M
0 W( S4 F+ Y( D( f4 G- K: | var.vt = VT_EMPTY;4 u6 L: w+ [: {: w. y
$ U8 M3 w. R8 d; r/ Z8 \. D// Call IDispatch::Invoke() # ?8 \( U$ V/ Y7 k! l" w, X% n& j/ ~ w9 U( Z6 s) H/ r5 H1 b# ^
hr = m_pDisp->Invoke(8 ]7 s% ]% M. x |6 V- a
requestID,7 N. u- ~4 ~. Z* c. R7 T6 u
IID_NULL, " p+ G( A5 w5 m LOCALE_SYSTEM_DEFAULT,( c- O; D6 B W$ e3 f& W2 \
DISPATCH_METHOD,- j, R. r( `/ [, w8 V8 d0 K9 F3 x
&dp2, ( P( X3 h% A% v &var,$ O& j0 ]) G% i- l
&ei, # Y- w* \: n- V9 r1 U3 i) D &uiErr);3 H' p% W. u* f: ~/ H [( ]