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:$ n& S3 w7 ]) F
Name = (WCHAR *) L"Poke";. q; l2 z. M: y! }/ f
. y) y9 O) x* i, N7 Z+ i, l ~ hr = m_pDisp->GetIDsOfNames (; r, \# m; }0 m
IID_NULL, // reserved , A6 q8 s6 K# _7 p. k# e* y &Name, // Array of names to get IDs for , Y' Z. {, Y3 X* ~8 O# ^ 1, // # of names in the array : S' M# \! L5 Y) ~: m LOCALE_SYSTEM_DEFAULT, // System locale 0 H' [7 @8 {. S. W+ V &pokeID); // Array of IDs to fill on output& r6 g5 Y5 V+ S) `+ H5 l
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if (hr) 4 A y& g' |8 D4 o: |- ?0 m8 d {& B& @ }" Y& }. t6 U- o
MessageBox ("Get Poke Unsuccessful");% V- Z" c# u, F) ~* ~ P& L) ]9 s
return; 2 ^5 P6 G5 z" J. _ } % U* |) S$ B) f8 Q3 R: X ! D H) M( {6 e( }/**************************传递数据给extend**************************************/ 4 N6 ^% k: q9 m4 }8 I pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& h. @; G/ @5 V& l* E& ]5 k" f
9 d s( W! x0 i: o: l// Set the DISPPARAMS structure that holds the variant. h, A u$ n! L
: `6 H# A. {. F/ W" S. G& z0 d dp.rgvarg = pokeVariant;, v o( c; Q& x0 a( J ?
dp.cArgs = 3;5 O2 n9 E( H V' p0 D. }% C j+ ~4 ~
dp.rgdispidNamedArgs = NULL; 4 j% `; ^- l1 I' { dp.cNamedArgs = 0; 4 F$ h3 w% i3 Q( k$ \; V; e0 q+ f" h1 Q% B! P! r
// Call IDispatch::Invoke() 1 N6 @* M# L/ |( t7 f& [ ) C2 }& e3 H- t# s5 Q0 I. G hr = m_pDisp->Invoke( 3 Q% ]0 ~8 K# \% T& D) h1 v pokeID, $ Y: M; W5 }- T% X E/ {) N IID_NULL,! N5 I6 |; t3 p- a( Q) p
LOCALE_SYSTEM_DEFAULT, : A9 q* U" o# P4 C DISPATCH_METHOD,/ K) ? b0 ]- X: x7 N' @
&dp, Z4 W' k# B9 Y) l8 k NULL, 6 O6 l. \- X* z0 |% _- s &ei, : t! u1 @" Z" Q5 |5 \ &uiErr); / n6 o R- j p- B0 Q; L, U6 s, k& m2 c' K r
SysFreeString(topicStr);8 n' f% R9 I9 ^- S0 e7 g# }
SysFreeString(itemStr);8 W4 c3 `) p0 h* X D" ^) p
SysFreeString(valueStr);: A7 E3 P6 p0 w5 U2 @7 d# v& T
M* K. x3 d4 T9 b% B/ |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 _# N& x, E" J3 {0 f
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????( o9 |: C' O- v
) \* o( s. w5 }9 f; U( \ ! y3 K2 f# w: Z2 `2.这是request的程序! X2 i9 c d" d1 f
// Request a value from Extend5 d( s- R% c; i. g. W+ G. a
// 5 e ~' k6 s& n1 L. ^) A1 q5 p// Initialize the variant that will hold the BSTR. Set the variant's * G, B* r" P9 p6 d7 U" T6 j// type flag to indicate the fact that this variant holds a BSTR. Place the * z: q: V: l) x// BSTR into the variant structure. 8 B8 O" i, r' b; ]/ ]+ d/ [, x& ]; a
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ S5 ~! `2 [# W' [* j
" w& m5 R5 v: S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 Y; H; q1 J8 D VariantInit(&requestVariant[0]); ( B' E- o$ ~6 c; Y# {
requestVariant[0].vt = VT_BSTR;# g4 K, q4 G+ L7 g; D# B% _
requestVariant[0].bstrVal = itemStr; 0 t* f" q$ M8 q9 H3 k4 h) ]7 l0 g8 [( N3 S/ m8 p# Z0 O
topicStr = SysAllocString((WCHAR *) L"system");9 T/ Q4 Y& h2 K9 a0 u1 V
VariantInit(&requestVariant[1]); ' O0 c0 o x7 Y% D
requestVariant[1].vt = VT_BSTR;& y4 A; C: |0 r
requestVariant[1].bstrVal = topicStr;. k/ H- `( }7 `6 K
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// Set the DISPPARAMS structure that holds the variant. # `# @( ^* H: C+ q! p1 |, v7 A4 N& d 6 d5 U' i/ n% g dp2.rgvarg = requestVariant; 7 d" E+ s4 T5 P. \7 p dp2.cArgs = 2; 6 a8 D) S( n6 Y8 m* H" ~ dp2.rgdispidNamedArgs = NULL; & h3 C, }* ?' M9 \( z dp2.cNamedArgs = 0;& C9 C$ Q' t e
5 W3 H' {0 p) i/ a3 m# P. _ var.vt = VT_EMPTY;' `* m' C) |: j
8 V% n" E/ g& H// Call IDispatch::Invoke() 9 G6 Y; l2 W6 r; Y! K$ ]( E: T; I* z. y0 F$ j
hr = m_pDisp->Invoke(" `+ o3 ?- j. N. l' k- z
requestID,5 L Z8 v$ }7 A2 L' _0 | B' z3 u* O
IID_NULL, , Z, T# T0 [7 J: P+ z- K LOCALE_SYSTEM_DEFAULT, # I3 Q2 N+ Y) D( r1 D$ j! u/ D: h# N- X DISPATCH_METHOD, 6 k* M8 ^ l+ c4 E9 p &dp2,9 x- \& |/ I9 C" a* C1 c
&var, $ d! [6 T7 Y1 s( o6 @; G+ N &ei, 2 Q7 Z% D% @. s: \ k% J/ o- \0 s &uiErr); 4 R" c5 ] w$ h5 ?9 V. V6 x6 U% r2 J$ \( M0 D, x
SysFreeString(topicStr);; V, W* X" c( j i% g& [
SysFreeString(itemStr);" D7 T) z% X J% K4 B
请问该程序是获得extend里面的哪个值? & S, U& j- m+ p) g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????