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: $ W* L3 E, _; ~Name = (WCHAR *) L"Poke"; " G0 W5 @( N' J6 ^, k% N! S 7 M& a& g5 F. F& j9 S4 o- [ hr = m_pDisp->GetIDsOfNames ( ( H/ s: f; G0 ^. c9 E" k! H IID_NULL, // reserved ; ~. \* P3 Z$ m0 D& E &Name, // Array of names to get IDs for 9 S0 S8 w2 f- ?9 J+ Y, m6 z% M' v 1, // # of names in the array $ D- _$ X* S' o LOCALE_SYSTEM_DEFAULT, // System locale7 K# x0 G) H$ D% B N1 A
&pokeID); // Array of IDs to fill on output, K2 T/ U- V6 D. j8 J l, d6 D. r
. l; ^2 q8 t( ]# V if (hr) % }& d: Q* z6 u' t8 {/ i# g {* X9 H8 B* M3 D
MessageBox ("Get Poke Unsuccessful");! Q4 o/ s, l7 j
return; % z I C2 S# c* c) t+ z; q: t } 5 F9 z: o( R) S3 g/ x 9 m+ o# n. C( \5 E0 R G/ I" O, B/**************************传递数据给extend**************************************/ ( b- {/ `5 _% N pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 4 m |! [+ u* A+ G+ i 2 O& m* R; }3 w4 D j0 @$ m
valueStr = SysAllocString((WCHAR *) L"1232"); & ^; z1 j% }, w VariantInit(&pokeVariant[0]); * `; a2 r I1 k0 w
pokeVariant[0].vt = VT_BSTR;" [+ h4 Q8 `! }" R
pokeVariant[0].bstrVal = valueStr; 6 G5 w, V# R9 {8 r1 g$ c4 R$ b/ Q# q& ]/ o0 S0 M! i( D, C1 l6 p
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 R9 n% R! K n6 m
VariantInit(&pokeVariant[1]); : \- I8 i% l5 g
pokeVariant[1].vt = VT_BSTR; + M3 ^* {) u- n {" h6 B" F0 U pokeVariant[1].bstrVal = itemStr; 4 }: J* i3 e( e& x q# E) x: V2 G$ E" ^' ?3 s
topicStr = SysAllocString((WCHAR *) L"system");, `: W1 d1 H: V L
VariantInit(&pokeVariant[2]); Y+ V/ Z) n# P8 ~! _ pokeVariant[2].vt = VT_BSTR; / P7 O+ Q9 t: x/ O' y1 Y pokeVariant[2].bstrVal = topicStr; P+ S" }: E* r9 K; r* }9 N9 F% s4 Z" A8 \
// Set the DISPPARAMS structure that holds the variant. $ B8 z0 m4 k0 {! X3 v# u : T# t# x0 |7 a9 h0 e: n dp.rgvarg = pokeVariant; " l ~7 z& i4 I2 b$ q% a dp.cArgs = 3; $ C3 J$ X6 A8 ^/ F2 ~ dp.rgdispidNamedArgs = NULL; + T; l8 f- \: x! f, J dp.cNamedArgs = 0;7 M, C' j. Q: E
7 W0 l9 G4 A. S- k5 A// Call IDispatch::Invoke() # ]8 C9 c8 f6 A4 W: L F) k1 q3 W
hr = m_pDisp->Invoke( % V$ E! B* Z3 w5 p3 G( H7 Q" ] pokeID," E5 |) s1 g& p. d
IID_NULL,. G1 t/ T5 b; T% s x( O
LOCALE_SYSTEM_DEFAULT, 7 o' I4 x% {* W9 s" i DISPATCH_METHOD, 9 m V- m1 D5 z& Q &dp,# P' s8 K- M# I7 ]: |% ~: {7 ^
NULL,! J- b( v G4 R7 y- G+ U2 h
&ei,( M+ K+ a& z# M. f3 S" p
&uiErr); 3 T( A3 ?7 t& F1 A' v% d7 r! c2 }; z6 C1 ]1 @9 @- U! g: x% b4 y& F
SysFreeString(topicStr);3 E+ ^7 A. v1 b- d
SysFreeString(itemStr); 7 U, M! W% S9 ?9 L/ n0 v; ? SysFreeString(valueStr);. S3 _" a/ k- [* Z H" j
' A% V6 t( b. M ^6 Z. v
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???% _5 s+ o! b: b# h0 a8 z- ?
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???? , @) h1 \ @: J ' e, K; b. u, ]! p$ T& g* u! ? 9 c% W; m6 W6 p: X7 w) E4 r2.这是request的程序 h+ V+ J( f3 u) z+ u8 L6 N7 g// Request a value from Extend - W9 I& `- x* S1 m3 f//# D# B3 _ A- z' A) U
// Initialize the variant that will hold the BSTR. Set the variant's 3 F" X3 R) l! A9 { D+ Q: ?// type flag to indicate the fact that this variant holds a BSTR. Place the5 o" Z1 u0 t; V$ F' o0 P
// BSTR into the variant structure. j: K Y) V% d: y8 W% A 0 T& l+ E9 {+ X" E4 D requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % x% i* C# }7 w. t) E3 g+ ] # i3 R7 A" y, d# y! k4 F2 L4 f itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# x; {4 W$ K3 @9 a+ i2 X" @
VariantInit(&requestVariant[0]); % O. d$ d: S8 }8 r; C
requestVariant[0].vt = VT_BSTR;+ P) b* w7 ?+ k4 x6 \- j6 u
requestVariant[0].bstrVal = itemStr;: h$ Z5 \6 W8 q+ C' j' k. r2 Z
/ k" O7 S8 p. o' A4 E! e
topicStr = SysAllocString((WCHAR *) L"system");+ R5 ^& a" r- T ^% b+ O
VariantInit(&requestVariant[1]); 2 Y9 X. ?3 p0 b requestVariant[1].vt = VT_BSTR; 9 K$ [" H+ s9 r1 r; r. k3 L requestVariant[1].bstrVal = topicStr; 2 n4 g! x8 Z) c2 v" _2 u/ x+ g" A # p, H- [$ g6 Y" \/ j// Set the DISPPARAMS structure that holds the variant. $ S* T4 b+ y# e- G 3 A9 K2 ?% Q# ~9 N: Y dp2.rgvarg = requestVariant;; o3 o, Y6 q& e" l
dp2.cArgs = 2; * @# t# W" y/ \/ G1 G5 ~' D dp2.rgdispidNamedArgs = NULL; " G ?8 F" ~1 V' p, k dp2.cNamedArgs = 0;1 f) S; E% a& {- w, D7 V
- _3 a/ |8 \9 p) x var.vt = VT_EMPTY; % d' Y7 {% I3 n8 C! Y9 y/ p) v. ?: \+ B
// Call IDispatch::Invoke() 6 L- c/ R5 c2 B7 @/ M8 V" F) N E# F; Q" e3 `: `, w# j
hr = m_pDisp->Invoke(2 a2 H' x; t& A0 x+ j5 g( s
requestID, " x; x- D& w: u, [% Z IID_NULL, 0 T+ l ?6 @, d6 |" e0 Y LOCALE_SYSTEM_DEFAULT,8 O5 O, `5 `. ^% r! M. {* e
DISPATCH_METHOD,2 B4 |, x6 a* e1 u* U
&dp2,! c# `* U, s0 @: E/ Z. j5 l" D: @
&var, , V& s. V3 s3 a/ m% W2 U2 x &ei,# K' Q* N% t# d8 n6 k% v3 u+ \
&uiErr);1 ]' ~. a, K+ U0 ?& A
& c3 e: P: a/ M# L8 Z SysFreeString(topicStr); 4 _$ g/ j" t4 `# o$ a SysFreeString(itemStr); + Z& I- c+ V. q6 T请问该程序是获得extend里面的哪个值? ) N' M1 ]; d, N C6 f( c; 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????