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: , m; ~9 k2 \7 s# m3 q8 HName = (WCHAR *) L"Poke"; ; Q( z( p) w+ G2 ^: G1 S n/ W7 w% I) U+ w
hr = m_pDisp->GetIDsOfNames ( ! _' {: l9 F2 Q ~ IID_NULL, // reserved( l4 ?' _! g' r1 z0 U
&Name, // Array of names to get IDs for 3 a$ k" c0 @ `9 v! L ? 1, // # of names in the array5 p3 Q( T3 P+ [ m- R) d6 u" s
LOCALE_SYSTEM_DEFAULT, // System locale0 Q/ g) y' o) L+ n2 L
&pokeID); // Array of IDs to fill on output ; Q! u' O/ s2 |8 o- }1 U % D9 H' z+ m! a) [' g% z6 M1 a
if (hr)0 l- e8 q2 @- D4 h, N
{$ x9 [0 s+ U% Y7 y: j- I
MessageBox ("Get Poke Unsuccessful"); # I0 v3 r/ H. R' [+ O7 |7 w m return;( s0 q$ P9 i+ R4 C! }+ |4 T
} ! |! H% }6 ]* `; t2 i, A& w6 r0 d) `7 D2 ^# k( Q- R
/**************************传递数据给extend**************************************/ % k6 `7 H I' X pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 k( t3 ?( f' U* [4 L! H [! D/ p ! Y, Z+ Z! d7 I* g) V! z3 P valueStr = SysAllocString((WCHAR *) L"1232"); & |& ]- [4 Y$ E3 s; B) a9 A VariantInit(&pokeVariant[0]); ; }2 m' |& N6 `; |) `' l pokeVariant[0].vt = VT_BSTR; 1 G {+ O: h/ n% K pokeVariant[0].bstrVal = valueStr; 7 C4 ?. s( Z- D6 }% D, a& E6 x; x8 g; J' }
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 n' O& d0 s5 Y# r8 C4 N+ h0 T2 n
VariantInit(&pokeVariant[1]); " }0 P- t N; C
pokeVariant[1].vt = VT_BSTR; % K- z" [0 f5 n, h' ]4 u ` pokeVariant[1].bstrVal = itemStr; 9 w, d1 I4 l# Q C$ D 1 `6 L- \$ V1 z, p# Q3 s2 V topicStr = SysAllocString((WCHAR *) L"system");' S% I" J: r5 I1 f& @& H" {9 o Y
VariantInit(&pokeVariant[2]); - k- _+ `1 D$ ?1 d( i
pokeVariant[2].vt = VT_BSTR; * s3 j' u! B6 m pokeVariant[2].bstrVal = topicStr; 8 T f3 v0 O8 f2 p " C3 S4 n- x: \4 Z$ @7 I$ S// Set the DISPPARAMS structure that holds the variant.- N0 @) y0 f% @" D% U
) S v% V6 U) Z/ {5 O& a9 f dp.rgvarg = pokeVariant;; w8 H" B$ H7 k" Z+ `3 _
dp.cArgs = 3;7 e8 v7 f+ l# N3 Z S) K8 N" g
dp.rgdispidNamedArgs = NULL;5 o& ]& s- J, S+ C+ I# T" M
dp.cNamedArgs = 0; ' Y4 W3 u- T* ?! Q! l8 U% Y , a" y( D# i4 F# j. N2 A9 W" q0 c- V// Call IDispatch::Invoke() # L5 V! Z5 Q5 {* c/ _+ F* M- p0 o
hr = m_pDisp->Invoke( ! n' S9 h& F0 ~. T6 u1 l pokeID,: M; ^* U* ^! ^* l
IID_NULL, ( c; p" k( b G6 i( n LOCALE_SYSTEM_DEFAULT,2 N% ~6 c: J* F
DISPATCH_METHOD, " j+ E6 _6 f; c) I k &dp, N) n/ Z# s* Q! A0 G/ ^ NULL,- X( c; q; q( N
&ei,/ p) Z" B- h* ]* @( r
&uiErr);: d! n, N# f/ H) h6 L; m
l y/ w7 v6 i, b4 ^ SysFreeString(topicStr);1 N9 L& d2 ?- j% R1 A! `# m
SysFreeString(itemStr);; L+ z1 \9 K4 i& p
SysFreeString(valueStr); l0 r* f: M$ R T f4 x$ R
8 }7 O( w0 I9 }" q4 h- {% J
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???8 W& Q+ C/ A6 {
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???? / u5 O5 d6 M9 l* d7 y8 _6 j% D& q, u, Z! O9 ]) v$ }6 f* d
5 B1 y& T" X. {, s7 ^% h2.这是request的程序) C; \- b- b6 g) Q
// Request a value from Extend+ ?) v& r5 v: x. M' q) j0 Y
// 5 T0 J+ N- w8 I/ \4 M, Q// Initialize the variant that will hold the BSTR. Set the variant's ( \( @! W+ {1 J; x// type flag to indicate the fact that this variant holds a BSTR. Place the : }' X. U% B/ E- T" ~) y& p// BSTR into the variant structure. - }( D0 S% \& a; v$ v2 r: R0 c9 o3 m: s% ^: |* F
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);; f0 ^% c/ E. T5 G
. V+ K k- n3 z) l4 `, E& o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); F* n0 D m" B5 Z( y* V. d; b VariantInit(&requestVariant[0]); . K3 B' S7 @1 H. \
requestVariant[0].vt = VT_BSTR; 7 o" @# ]( K1 N% |& K( q4 k requestVariant[0].bstrVal = itemStr;" m6 Y) x' ^( K1 |7 j9 u
, [3 {8 h1 [/ C# {2 D# A& K topicStr = SysAllocString((WCHAR *) L"system"); 6 {+ K; Q+ _% C$ T P' [* X }# e VariantInit(&requestVariant[1]); 8 @- c' S2 J. \2 p, d4 O
requestVariant[1].vt = VT_BSTR; ( ]4 d$ S) {$ B" x) o requestVariant[1].bstrVal = topicStr; & K7 p9 ]1 x6 v! s- B ( t0 e7 N3 u6 W7 ~$ ~// Set the DISPPARAMS structure that holds the variant.% f5 K- Z! h" E) J* a$ R
1 l7 g, ?! v/ O8 Q) T* ?; r5 Z/ }! u dp2.rgvarg = requestVariant; 0 C! z0 W, J& `) t. h- R dp2.cArgs = 2;2 p X* j5 Q6 n$ g, o
dp2.rgdispidNamedArgs = NULL; 0 D! c) r( k1 h8 `- y1 `7 M dp2.cNamedArgs = 0;0 y; R. i6 V2 n5 W: r& M/ y7 C g
% p. S5 Q5 Q# v* i: n% Z7 t
var.vt = VT_EMPTY; 0 v' ?1 P" m+ C4 P: C) ~! X% f9 Z7 d# f! q) y/ j/ P3 f1 S' F: O+ J
// Call IDispatch::Invoke() - b8 p/ w# `+ V% ?$ e4 B; F9 q, l " F) Q, T; ]8 F% E hr = m_pDisp->Invoke( C+ a. r0 P5 W' r5 ^0 U
requestID,1 B' B1 g: d( y, W& W* K$ ~
IID_NULL, 3 i0 b+ G) L0 a- L LOCALE_SYSTEM_DEFAULT, " l- o0 w% O. R9 S% i DISPATCH_METHOD, 4 b! x6 H& K! S &dp2,6 I+ q/ ^8 z+ H5 k* c% D) k
&var, * ]+ t5 s& M0 h &ei, , [: o" u' c7 ?8 O" F: s& P &uiErr); 7 V- h v) ]+ L. Y& z# G7 n+ o9 y* E* f& x5 C. ^. V
SysFreeString(topicStr); 3 p, V% p' }% ^5 ^, f$ l SysFreeString(itemStr);4 f8 f2 S% w0 P+ W8 y7 \
请问该程序是获得extend里面的哪个值?6 O2 i5 N% n5 J) p/ 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????