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: - J# ^ ~, M) `& O' r5 JName = (WCHAR *) L"Poke";8 z e* }+ D9 s
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hr = m_pDisp->GetIDsOfNames ( " ~! L: }7 I" ~8 Z( J6 P/ Q IID_NULL, // reserved0 @. J% _+ h5 ~7 B7 j+ |
&Name, // Array of names to get IDs for: p9 @8 O# `+ t9 K8 d# Z7 F+ c2 x
1, // # of names in the array ) N# J7 c+ q% ~: F LOCALE_SYSTEM_DEFAULT, // System locale+ X8 q" g! s% Z; h7 K7 p
&pokeID); // Array of IDs to fill on output * _6 W8 x$ @" ], P8 P: l: h- r ; c1 }+ j; h- R$ U% ` o
if (hr). B, a. g9 L4 X- {; @
{% @2 D) r% e0 f K/ L& n% `
MessageBox ("Get Poke Unsuccessful"); 9 J4 G3 S. H) o. }* y* H return;/ D* k4 I2 m1 q
} ; x+ {' W9 m5 f7 p5 c* Z) d* G) C! C4 K+ y9 A! z& H4 E
/**************************传递数据给extend**************************************/( [7 q3 Y/ l* m6 Z, F- K2 ^7 W
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - N. j' q8 W; N1 l: O ' Z* v! `! M+ C. v% v" Y) k6 u
valueStr = SysAllocString((WCHAR *) L"1232"); 2 ^( t' T# d, J0 u- d l; A VariantInit(&pokeVariant[0]); " Z: U/ x0 b* o5 w& d pokeVariant[0].vt = VT_BSTR;- [ q- O4 N& W3 N
pokeVariant[0].bstrVal = valueStr;3 f, b+ [$ `- _( V4 t
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 u+ U" r- w. G8 s: _: I VariantInit(&pokeVariant[1]); ; |- b0 j; M! i; @7 }3 r+ y) _# J pokeVariant[1].vt = VT_BSTR;( l' v$ A! m- Z4 b) D
pokeVariant[1].bstrVal = itemStr;7 p4 c7 Z1 n9 ?( O. L7 c
' J# P& s h! l2 Z+ n8 d topicStr = SysAllocString((WCHAR *) L"system"); / O0 M# Z* R% C* {6 r) z7 ~+ w VariantInit(&pokeVariant[2]); / j% x+ }( r _% h. C- [) W" h
pokeVariant[2].vt = VT_BSTR; 9 f4 Z( r# ?. O$ V# Y! @" x pokeVariant[2].bstrVal = topicStr; , O9 a2 S* k% c0 \5 ^. @3 _; B8 g6 f2 l
// Set the DISPPARAMS structure that holds the variant. : W' ]& w7 L/ X; Y7 ] % r! ~' L( D T dp.rgvarg = pokeVariant;9 s' L; ?# L+ N" d/ o
dp.cArgs = 3;+ a) @7 K( f6 c/ G
dp.rgdispidNamedArgs = NULL; + v* K# g G4 r# H dp.cNamedArgs = 0; " o$ I* x' Y+ L5 }& ^ 8 A/ M" P7 y, J// Call IDispatch::Invoke()1 m, H! a$ a; H$ b6 [4 i3 O
! k" O) ^8 V# q* G! R8 l, d: X( P hr = m_pDisp->Invoke(: \+ k( T- }0 ~2 A% b
pokeID, ( G( B+ @9 Y/ f- b6 G IID_NULL,* \. B7 X. ^1 H: y1 t4 g
LOCALE_SYSTEM_DEFAULT,' m F% E6 ]" J6 n b, { Q
DISPATCH_METHOD,4 k( m) Y J; e5 j# q# c
&dp,$ y& u/ {: x ^/ R$ D& N& N
NULL,7 a7 k, W" o* u. m) u
&ei, 6 ~" @$ p, _7 x &uiErr);# I- W8 Z+ J. I1 z
* f; x6 Q B; {1 L1 F SysFreeString(topicStr); ( N( j. C) P6 |5 f6 j9 f0 @5 Z SysFreeString(itemStr); # N U( W; h% @ SysFreeString(valueStr);9 c8 o. O. m) N+ y* N- _1 V
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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???& M g% J* p- c) J, D, V1 X1 L
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????1 ~. u! G7 N: u! e- m( z
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2.这是request的程序2 O& G6 V6 U* c
// Request a value from Extend 7 O, G% C- r( f. P2 s3 f' {//( f/ f: j% r8 \: g1 `2 ]
// Initialize the variant that will hold the BSTR. Set the variant's2 T3 A" y. `: e; R C8 k# Z3 Z
// type flag to indicate the fact that this variant holds a BSTR. Place the $ E& g: Y! n4 w; v0 Z6 ~& k// BSTR into the variant structure.# m/ i( h" Y5 A
4 M+ {$ L3 \% D! N requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 8 n2 Z% c4 ^' W! a8 p1 c # C. l" j8 F! e' U3 p8 b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ f/ V; e4 x, ]
VariantInit(&requestVariant[0]); 0 ]* ]) k: g+ {1 d V {' }
requestVariant[0].vt = VT_BSTR;; o! O. |- ]5 i& d, J) V
requestVariant[0].bstrVal = itemStr; 9 v: f2 A- i/ R5 W- s5 ]1 [5 U4 e* y! b( s
topicStr = SysAllocString((WCHAR *) L"system"); . C. N2 r: X/ x4 Q+ A VariantInit(&requestVariant[1]); / O. p$ p+ }' m! L* t Q
requestVariant[1].vt = VT_BSTR;2 ^' a( b/ e9 u) g$ Z* G
requestVariant[1].bstrVal = topicStr;; M: g' z" j7 n
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// Set the DISPPARAMS structure that holds the variant. $ w: O$ {7 c8 z 6 U7 z% V, m2 i( K5 V) r- ~9 f dp2.rgvarg = requestVariant;0 ?! p" h y4 S& T. E
dp2.cArgs = 2;1 m& d5 h& }$ S) ~( @4 |
dp2.rgdispidNamedArgs = NULL;7 e& r, q* i) ?, M c8 \# m' H; C5 p4 q
dp2.cNamedArgs = 0; ) p5 D/ Z! I- h+ e & B5 J& {8 ]. H/ x var.vt = VT_EMPTY; 5 m2 c1 I4 Y4 q$ t2 B* Z- n7 Z4 y6 Q6 K' \1 y* L4 X# k( N
// Call IDispatch::Invoke() - x" D0 }$ l0 o4 ?* f5 p- k; l& Y' u7 y7 _3 t- `5 a) h
hr = m_pDisp->Invoke( 4 }) S) k* |. K J# m. X requestID,! \8 i2 s8 B/ O' F$ }
IID_NULL,6 b% k' H' r* [& c& y5 ?
LOCALE_SYSTEM_DEFAULT,, c( k1 f$ H( ?8 @7 i7 m% S1 {
DISPATCH_METHOD, ! }4 i# |( S9 g2 V, j1 Y/ { &dp2, 6 Z+ C. ~2 T9 C) A% H0 y$ R' v &var,% K2 G9 e: M7 L0 R
&ei,! ?0 `9 g) m8 d E; p" p
&uiErr); # Z6 T9 e6 j# B) s0 ^ 5 u0 g8 u5 j$ @1 }( y; K5 I9 q1 e SysFreeString(topicStr); H& @( Q3 `3 B, m4 @& J) C6 c SysFreeString(itemStr); 1 ^% E" r7 W' b7 v, F" d2 ^请问该程序是获得extend里面的哪个值? 5 u1 m, y, m4 X, o: F7 V 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????