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:! q! M( @3 ?! ]$ U& [; M
Name = (WCHAR *) L"Poke"; & D7 `0 ?9 u% a 4 Q* C9 S% b& m. O$ }. J# b- K hr = m_pDisp->GetIDsOfNames (4 E1 Z! d( f+ x& \
IID_NULL, // reserved0 D7 a: [* Q0 m: _! _- \: ^
&Name, // Array of names to get IDs for - @% D {2 u% y6 B 1, // # of names in the array : I+ L; z: a# d& @) V H& p4 [3 z LOCALE_SYSTEM_DEFAULT, // System locale: I! Y- _3 `$ L/ _4 h+ S& D0 W" S
&pokeID); // Array of IDs to fill on output4 \8 V/ y' e. Z1 C! }1 J
8 p9 _* |. ^, z1 j8 z: W
if (hr) # L& f% F5 w- r5 Z. D { ' s1 G5 U+ t& C8 \* V MessageBox ("Get Poke Unsuccessful");, C/ G. Y- e$ ~3 s
return; 4 a( @9 v! Q0 E9 s6 g8 `8 O } - q3 h4 |7 c) e; y/ @9 t4 \! I: o" x
/**************************传递数据给extend**************************************// U+ L6 I( n( Q" Z
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 ?: n v* ~9 u ! c. z. v! z2 `. }3 E! w4 y, l valueStr = SysAllocString((WCHAR *) L"1232");8 {, B: L3 J) H- |% g
VariantInit(&pokeVariant[0]); ) b- ?0 N4 i% @* R4 [3 P
pokeVariant[0].vt = VT_BSTR;/ N; l7 ]. c& v4 S
pokeVariant[0].bstrVal = valueStr;) B" E. e/ w( J5 Z
' z% `: I" c5 k$ l) l* T6 f0 s
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , ?5 `% p, P% w# b; J" C3 o+ Y VariantInit(&pokeVariant[1]); 4 d) v+ T( W7 v5 h
pokeVariant[1].vt = VT_BSTR; + d, A: Z+ h7 y+ E% H) n2 ? pokeVariant[1].bstrVal = itemStr;' C$ q: M8 P2 a8 r; R* B. T; v
# z$ r) H" K' s7 L' L) m4 i$ t topicStr = SysAllocString((WCHAR *) L"system"); ' R( |' `, o7 f: |4 J; b, E" t4 J' d VariantInit(&pokeVariant[2]); 5 w5 W1 D( E) x+ y i pokeVariant[2].vt = VT_BSTR;+ |4 g7 p9 o4 ]9 U c' s r" e9 f4 ~
pokeVariant[2].bstrVal = topicStr; ; l7 R+ m- Z1 K8 [8 l7 U) M. p/ d; V7 v; j$ i, R" [ D
// Set the DISPPARAMS structure that holds the variant.2 I3 q7 x B* y- R* G. {
! Z, t7 ~+ F2 `( k0 n dp.rgvarg = pokeVariant; c( c# C; L4 z' k
dp.cArgs = 3; E% g' o* Z' Q+ O1 q
dp.rgdispidNamedArgs = NULL; * p1 b( s8 y( X, M: z/ E! S4 I dp.cNamedArgs = 0;/ o& n2 w8 q) B2 O p/ B% |
! ?$ Q8 |1 D6 l a
// Call IDispatch::Invoke()5 j+ }6 H0 g: P$ p# v3 Y$ O8 t
$ ?+ g# T. C. W( Z" n
hr = m_pDisp->Invoke() R6 w, I" L, z2 Y
pokeID, ) O n; s6 J. S IID_NULL, & H7 [0 l: w% f; {6 O# { LOCALE_SYSTEM_DEFAULT,( c1 i4 r! ^% \- n* A9 A0 g
DISPATCH_METHOD, * Q6 E9 v7 v$ V$ A &dp, 7 ?" R* z1 T8 R2 Z6 s2 N NULL,4 e* W. d2 @( `& x( ]( B2 }6 K' y
&ei,* I* |! n, y2 x+ {6 ?" W7 [. r
&uiErr); # V6 g) I" `0 h4 Q2 T5 `' B1 x % q% h! O- D6 g9 b SysFreeString(topicStr); % N! g2 s: T- m+ ]5 M' p SysFreeString(itemStr);) | y, q6 g* d! L9 g1 |; Y
SysFreeString(valueStr);/ i* c: x% V% D& C
) n! o) `- }4 ~) y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???0 e# z/ D. J8 a0 D, \
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????; }& g7 A/ \6 w: I+ H. I( u" q+ X
W& y( f4 q* }& W( z 4 b# v; s [+ @# \2 M- g: H2.这是request的程序 # k$ O Y9 Y/ u2 C9 {5 n// Request a value from Extend! c, ~7 M- {/ \3 t. j
//" ^2 N* Q( F5 e% j- Q8 p
// Initialize the variant that will hold the BSTR. Set the variant's- G4 k. S1 ^+ x2 v. i$ m9 X
// type flag to indicate the fact that this variant holds a BSTR. Place the / o# \# V) O1 ]( D" p0 A0 |( Q0 \* Y// BSTR into the variant structure. * r1 m1 n1 j# c, r/ }- p3 S4 ^
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) L& o/ R1 H0 G2 y X. O# P/ \
N& |* q R8 M+ y
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' q4 U8 u- y& C: T }: k9 ~9 c VariantInit(&requestVariant[0]); 5 S( A9 v/ X; ~6 E
requestVariant[0].vt = VT_BSTR;2 B* s: i! ?. t# L. G. j5 b, k
requestVariant[0].bstrVal = itemStr;* d8 N" N2 w6 X, Y
+ o: P! U* i- l! H( i
topicStr = SysAllocString((WCHAR *) L"system"); . c+ l& a9 f% U' a VariantInit(&requestVariant[1]); ' F* e# ^. }/ Z/ y4 s
requestVariant[1].vt = VT_BSTR;$ F# l/ h% s3 C/ I
requestVariant[1].bstrVal = topicStr;9 {; k1 O5 }2 V7 B
- Y3 ]5 Z! {/ ]' {, G& F8 f
// Set the DISPPARAMS structure that holds the variant.6 e; {! o4 J& I
& K9 c# J5 J+ @& n8 |, G8 S9 _ E dp2.rgvarg = requestVariant; 4 C% b8 h2 P7 b6 V3 k dp2.cArgs = 2;2 C4 L; a1 A$ A2 M; F6 d/ Q
dp2.rgdispidNamedArgs = NULL;1 J3 H; a3 G$ [ X7 ]7 A
dp2.cNamedArgs = 0; O9 i. y. k+ g1 F& u% C
, D+ s9 N; m) v var.vt = VT_EMPTY; 1 c. Z( b" M/ I: N3 l7 f9 y0 v! X6 ^' P l. U
// Call IDispatch::Invoke() # w0 {' x6 _! H9 q( A6 C9 ]+ J$ x- X
hr = m_pDisp->Invoke( # z" s. }& _4 k1 f/ z2 W requestID,4 [7 ?) _$ s7 R6 e3 N* C$ M" n
IID_NULL, , a9 _, {6 S0 b2 X! o LOCALE_SYSTEM_DEFAULT, 2 E6 u* x6 d- u8 B' } DISPATCH_METHOD,0 X) }, s4 i% T- U# g
&dp2, 0 A* ]0 S4 |; v' t0 Q( s) y. c &var,4 i \: {$ o) q/ z, Q8 j P
&ei, * P2 m9 W: C- g( L7 F &uiErr); / x) D7 E7 N4 l% f. M c3 z; I7 k$ E" W$ L9 ]3 T
SysFreeString(topicStr); ; ^0 s1 r0 H8 ^5 Q. W. p) M/ E, ? SysFreeString(itemStr);5 f) _3 c& o9 E
请问该程序是获得extend里面的哪个值? 5 M4 O1 W3 H9 e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????