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:4 `! u, d" a3 \0 H6 [( h1 i7 O
Name = (WCHAR *) L"Poke"; . s' T8 ]8 J, L4 |3 r: O ; `$ ^6 r) B5 r4 M% b; c
hr = m_pDisp->GetIDsOfNames ( - t; I. }# Y9 {) G ?2 i IID_NULL, // reserved" w! K- Q- B$ q$ k$ I
&Name, // Array of names to get IDs for $ l& a7 S3 j; Z0 b( z 1, // # of names in the array! l0 g3 G) Q+ |0 K
LOCALE_SYSTEM_DEFAULT, // System locale {. y( |& A5 \% Y# V& H &pokeID); // Array of IDs to fill on output7 Z( r# ^6 R; v% }
* e% e1 g3 H0 a if (hr)) f) ?8 | Y5 y/ K7 ]' [
{ # b% J! g2 `* O8 V! L MessageBox ("Get Poke Unsuccessful"); 9 F0 M3 Q, I/ }6 R& k9 d5 Z( \% } return; # a: P% l, O2 @- n5 X( Z. A7 H/ l( W } 5 E | R; B& @; r: P+ c l) H7 C/ I* y
/**************************传递数据给extend**************************************/! h6 I9 X) h% A x9 X
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 2 Q! R, p2 L% m6 H , l8 s1 h4 f1 d b2 k valueStr = SysAllocString((WCHAR *) L"1232"); ' Y7 f1 I& q$ P( ?/ }. p4 \ VariantInit(&pokeVariant[0]); % s3 {" t; }" o- Y pokeVariant[0].vt = VT_BSTR;; B! w/ q. r3 z' O( g4 Q
pokeVariant[0].bstrVal = valueStr;9 b, q. H0 o, A( [, ~! A- k! O* d! A
, u8 |; q9 m4 m" ]$ E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 b- h) o; w4 |5 x* R) i# } VariantInit(&pokeVariant[1]); - e/ [: L) r2 t pokeVariant[1].vt = VT_BSTR;4 b7 ]- F$ M1 U6 K
pokeVariant[1].bstrVal = itemStr;7 Z4 b$ e" }: A7 z' H( b
& F/ \% I% m+ B
topicStr = SysAllocString((WCHAR *) L"system");* |; P1 s& V3 L" m3 I) C
VariantInit(&pokeVariant[2]); , @. X$ D: { \' ] pokeVariant[2].vt = VT_BSTR; 9 g/ Y6 u' J7 A1 P! [ pokeVariant[2].bstrVal = topicStr; ' F$ u# v' u* Q- ]4 t 6 c) R& m( i s3 N! h// Set the DISPPARAMS structure that holds the variant. 3 G6 G' s( o+ Z7 o: h! U 1 \- \, i& j& l2 F# E) A! b dp.rgvarg = pokeVariant; . V6 q4 n+ y O7 S8 D! f dp.cArgs = 3; & w4 o5 k& `2 ^/ h4 B dp.rgdispidNamedArgs = NULL; : W; k( V+ x% i7 [! V$ b% Q) X: {) s7 { dp.cNamedArgs = 0;* u. i0 a& S% t ~
* x. F7 j6 \" k* k2 l// Call IDispatch::Invoke() - Q6 C# g) p! N* K/ T5 h- ^; r! A! V M4 d& l2 z
hr = m_pDisp->Invoke( 6 B7 n, A8 @! @# Q- w pokeID, 7 w# N. Q, f8 M IID_NULL, ; g+ i. E3 |7 A5 q( Y LOCALE_SYSTEM_DEFAULT, ; O. n; x( j$ ?/ {" U4 o) c% ^% ? DISPATCH_METHOD, ! F8 w) L {/ b$ c$ g, c &dp,; P ?7 v5 T9 D$ v: r- v l
NULL, _2 z# t& y. S2 ]' Y* F" i1 ^/ D
&ei, - P. T! }) D( C* z, [! [: f &uiErr); / c+ [* `9 |; f/ W( w* B ]3 v) }) _+ t% ^3 s5 s
SysFreeString(topicStr);( y; i: t" a) m2 ]" R
SysFreeString(itemStr); 9 C3 J6 | u8 ~- e6 c/ o, W% X% U SysFreeString(valueStr); + Y& d& c9 n# r* ~) g3 s2 `8 {6 L' t( w1 l t* |* C2 E9 q+ {! d
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 S$ t$ R7 u' \, t
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???? + N, V# ^6 O0 @' B% [9 P- g3 j 8 ~1 G. i! T b3 C1 n/ q # u( W# Z: H7 g% G4 Z9 H7 n* Q6 B2.这是request的程序 8 C) y1 g( B( M. ^1 ]// Request a value from Extend & S3 q/ Q; ~& D |$ \- ^! E6 f// 8 s- v+ [, d; `9 z9 z: x// Initialize the variant that will hold the BSTR. Set the variant's2 ~# b2 ], h: B9 w
// type flag to indicate the fact that this variant holds a BSTR. Place the + {* [$ O1 S/ k$ c0 ~) u// BSTR into the variant structure.3 E/ A$ V2 I) ?) Q2 _
) X+ I, p+ u% F: s
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 ~" c x& y1 i* y) W- @/ M9 Q
' ?. ]1 [! O# u% s/ |! I G# i: H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. W1 v/ Q2 F( i; W; ^: _8 U/ G
VariantInit(&requestVariant[0]); ( K' L: [( ?; `& y+ P requestVariant[0].vt = VT_BSTR; 2 h$ o" ?+ E0 b9 Q6 L9 A. y1 R. { requestVariant[0].bstrVal = itemStr; 4 C6 E4 f% G# H+ Y3 ^* |, ]7 r: V! H
topicStr = SysAllocString((WCHAR *) L"system");, B' N7 L% d. v0 d
VariantInit(&requestVariant[1]); 1 Y, H" c1 p8 @7 ~$ R4 w( [
requestVariant[1].vt = VT_BSTR; ' w* z1 F/ ]! B requestVariant[1].bstrVal = topicStr; # Y9 e/ E% x( q' F) D% J% F6 v: I: E' K+ T |. `
// Set the DISPPARAMS structure that holds the variant.( d4 t- t9 [. V* z8 ]
3 J( W7 W& h9 M/ z9 q5 c8 w% P
dp2.rgvarg = requestVariant; / U& _( J) z2 R. y! {8 v dp2.cArgs = 2;+ B) Q1 K& a+ s" P4 H( P
dp2.rgdispidNamedArgs = NULL; 0 R9 ]5 r/ @) T6 ? dp2.cNamedArgs = 0;0 p7 a0 \( f1 n1 j# M! T) P
2 ?8 O. a' K& |4 d) s. I5 |, C var.vt = VT_EMPTY; " `0 v/ U9 k* W( y4 x) q$ @5 m8 q3 ?" v& [
// Call IDispatch::Invoke() 3 o% A5 t& N6 t3 E* C7 ~( D- q' ?" V* G7 g1 {' m1 Y
hr = m_pDisp->Invoke(7 R) p! i j- Y3 x
requestID, # w0 `7 t, \2 W9 }; n& K3 G6 N O IID_NULL,8 ?$ p" d* _3 g# V) G3 p Q7 H. j
LOCALE_SYSTEM_DEFAULT, - U! Y- K9 u. g( z; \. {8 n DISPATCH_METHOD, , d+ V, {$ n: k6 D: f &dp2,* g: E8 y% ~* @/ u2 K. u9 Y$ Q* r
&var,/ ?* m$ {" y* l
&ei, & }# g, o0 w3 `# M" G0 K &uiErr);" F' B$ F0 a) S1 `( d
9 c9 R# c7 `7 l0 O1 H( _
SysFreeString(topicStr);; z4 M2 I2 @% Y5 w& E3 r
SysFreeString(itemStr); 9 m' X4 n% _& p. c0 I3 T8 X/ U请问该程序是获得extend里面的哪个值?, S: ]& s" F: v2 M
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????