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： : b- g, j9 \. vName = (WCHAR *) L"Poke"; / v4 s, G; h) G8 i$ K$ e* ? 2 }% H# Q5 Z: \5 u
hr = m_pDisp->GetIDsOfNames ( 7 h. w& K) a5 [. W6 H IID_NULL, // reserved " B. S7 ?" C/ O- E- [ E &Name, // Array of names to get IDs for: D+ ^7 X2 |: Z3 ]& m) z
1, // # of names in the array; |* y. ~! i1 m6 V6 x
LOCALE_SYSTEM_DEFAULT, // System locale/ `' E! N \% ~: ]( u/ p
&pokeID); // Array of IDs to fill on output, L5 R. x. Y* |. g) u' S7 S# n
/ b0 u# Q' @+ }& {! @, @ `5 `
if (hr)/ b" O( ]& P2 L2 w1 X1 _1 a
{7 j+ Z) l9 \: @( d, D
MessageBox ("Get Poke Unsuccessful");9 B4 Q3 s5 v2 Z+ P. Z
return; $ F' ~( j' O/ k$ u } , E, P, {8 h& m % r/ S0 E7 O4 d; e' z# }/ K6 f/**************************传递数据给extend**************************************/" t. n% t- u' ]0 @- i; z X9 l
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 Z! y; f0 m* N0 R& a. g 6 C$ T8 \3 q) ~% E' K a: P valueStr = SysAllocString((WCHAR *) L"1232");, F9 ]+ t. g# g+ {6 e |( m
VariantInit(&pokeVariant[0]); # {9 }1 `( y( G2 N' V
pokeVariant[0].vt = VT_BSTR; 8 V6 ?7 Z) M2 B4 C; l7 S# y pokeVariant[0].bstrVal = valueStr; 9 d! C* v! `* T/ o: F! {4 A' h4 p5 d& ~( M o, B$ M2 D0 L) z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( N* j: g2 \1 M$ b, X& U" g: [- Y2 g VariantInit(&pokeVariant[1]); 0 T! S) R4 r" p3 ]: R% @
pokeVariant[1].vt = VT_BSTR; " {# a* t; j* L; i( C pokeVariant[1].bstrVal = itemStr; 3 i: L, f2 K$ n0 a) S g ( w9 ]9 `. `- `/ x% }. ~ topicStr = SysAllocString((WCHAR *) L"system");, \6 H( S$ P: u- X" J# n5 {
VariantInit(&pokeVariant[2]); - \+ A8 p+ }& p7 ]5 ^
pokeVariant[2].vt = VT_BSTR;- x! ]4 M5 u! w4 Z9 c$ U& C
pokeVariant[2].bstrVal = topicStr; ( m* f/ m: }/ I0 Y# u- s3 I" _' m ) D- T0 g: \: f: t. c D9 J; o// Set the DISPPARAMS structure that holds the variant. 7 G* z m7 i- x/ A+ Y! h( s$ V' }8 b, B0 O
dp.rgvarg = pokeVariant;" R4 \+ k& u* n% }1 {7 d+ P
dp.cArgs = 3; / I" p0 f0 S2 t. k dp.rgdispidNamedArgs = NULL; % l# M% [- D( l! N: r* r9 a2 b; C dp.cNamedArgs = 0; 6 [4 y& g. D }. I9 g) ? : t" F/ b& w5 s// Call IDispatch::Invoke() # J8 K9 Q Q( Q2 m! D- q: s 6 n. [, a- K8 I$ | hr = m_pDisp->Invoke( 5 m, A2 s6 a. G! O/ u2 C pokeID,0 c# J& H4 `4 T4 \
IID_NULL,5 T2 K, n( w) m1 {! @2 S
LOCALE_SYSTEM_DEFAULT,9 C9 z2 W R- _1 [
DISPATCH_METHOD,* l! m! [7 w5 g5 _$ _- ~6 m. x
&dp, 6 x! y/ M0 s& [. G NULL,4 K6 w0 o0 d( V+ L. z0 o' O
&ei,, U; U6 v: X0 D2 k+ b B# e' r
&uiErr);+ E% n. n8 e- i \2 T
( W/ i7 r" X O: a* q ] SysFreeString(topicStr); 2 p; ~1 e# B! o$ R$ M" H SysFreeString(itemStr);: I s# q( A9 B
SysFreeString(valueStr); " m; h0 A& E2 J1 j, D 7 v1 h; O( M( V3 `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？？？ 2 ]1 G O3 w/ J, k$ m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？？？？ " f9 s" T }1 A8 a7 P. @# W( M 9 C0 Q8 X' e# L& s% d- M& O ( {$ d: B/ g7 Y/ B2.这是request的程序 + f( m4 O+ n w7 G) d# D. R// Request a value from Extend P. J4 e) P! }; l//; W3 d9 |- l5 m- C( ~6 a
// Initialize the variant that will hold the BSTR. Set the variant's / E, A$ m* \+ U1 ~+ X" ], @9 i// type flag to indicate the fact that this variant holds a BSTR. Place the ( f+ n$ x k% S1 N# E// BSTR into the variant structure.; L/ D) |, \8 s7 O" ]3 ~$ ]
! K8 x9 \3 p! H4 \) S& ` requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); # C; ?3 s0 C. N) |& C, Z$ l4 s ; ^8 k- _8 }- s: t; g itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , F2 }8 L8 I/ P/ J& v VariantInit(&requestVariant[0]); 3 g% ?2 a# P: ]' n0 Q0 x4 H4 m, J requestVariant[0].vt = VT_BSTR; / X. Z# B# m" }) ]2 T. L4 e. E7 [ requestVariant[0].bstrVal = itemStr; - `( c9 u# O& f, h E$ |4 M! N' r8 s# w
topicStr = SysAllocString((WCHAR *) L"system"); ' ]. P9 P5 |6 r3 Q( u4 {% V VariantInit(&requestVariant[1]); 6 }+ ]0 u3 w7 A4 z1 y requestVariant[1].vt = VT_BSTR;0 K" a( j8 {: t3 p- d! n
requestVariant[1].bstrVal = topicStr; 7 e8 U' r5 j- [- U; ]* i \: h1 B6 T% b- w4 S, k
// Set the DISPPARAMS structure that holds the variant. . u5 n9 G3 Q- l1 g$ t5 l# \ + Z! D' [5 i, h& s6 v dp2.rgvarg = requestVariant;9 F# _" ~5 w( N1 e( a- b
dp2.cArgs = 2;( ]' ~" R# J) z1 q9 n2 q) U
dp2.rgdispidNamedArgs = NULL;$ }) {5 D) y7 T, R4 i
dp2.cNamedArgs = 0;1 Q( t# e0 ^# l3 h$ i
4 {! h( X9 G$ y+ \+ C2 x2 f' \
var.vt = VT_EMPTY; 0 b" ~) ^5 M- m4 ^+ O( E6 @) x- A( n# R. R% W
// Call IDispatch::Invoke() & m5 w% W5 `# }, ]0 t! O# I& i8 L3 j* P& E
hr = m_pDisp->Invoke(3 }& ^2 Q& B5 a2 W
requestID, 7 i0 O6 @. D6 |2 j* I2 q. f IID_NULL,, W d5 W ~" S9 J$ i$ d7 ]/ i
LOCALE_SYSTEM_DEFAULT,# E9 c/ D# q2 I9 W5 M. d
DISPATCH_METHOD, 8 u! h0 ]0 u# H &dp2, . o5 `& G& ~1 A( _! I6 v" Q W! p &var, 1 G$ b) s* [, x6 P! C6 e2 c3 r7 e+ a &ei,. \+ C. b# `2 B" Z
&uiErr); 5 b) ?& f$ }- Q; u& g( ?: R L" Y0 f8 u/ ?2 M SysFreeString(topicStr); 5 d9 c. y8 G+ @9 ?: g SysFreeString(itemStr); $ k4 |; n7 H/ o% S9 q# Z2 H请问该程序是获得extend里面的哪个值？ % R5 l5 |& r' \3 Q! R- `( ^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？？？？
发表于 2008-11-25 19:37:03
