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 ~) y/ J* l' V+ a, x* ]Name = (WCHAR *) L"Poke";' V% m" q& r9 J7 |: e7 [
, {" D$ `* c& ^
hr = m_pDisp->GetIDsOfNames ( ; H, @8 O6 a r0 ]' ]/ n: a7 K3 e IID_NULL, // reserved 6 i ~9 |; r6 H" V+ w/ w &Name, // Array of names to get IDs for 4 ~4 m& x* u; l5 ^& x 1, // # of names in the array . _2 O3 b5 R2 O LOCALE_SYSTEM_DEFAULT, // System locale 9 P2 b3 ~& L" Y: E &pokeID); // Array of IDs to fill on output, q& p& W4 p) Q8 g
( |3 S+ J- B3 F( u if (hr)' }8 U( Y% y. O' m5 K5 _( c# u
{4 j9 e7 R1 I1 ?- r
MessageBox ("Get Poke Unsuccessful");! R' Q S- M6 X' x% P
return;2 s9 w/ ?" @/ d2 F$ E: `
} * d) D9 R9 `1 Z8 V( ?0 { # v9 U0 J4 h x8 F' c1 Z/**************************传递数据给extend**************************************/ , x) l3 I% L) i. X+ E( C pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 g8 `/ \& }6 ^2 U 9 r2 x) ?% K- V: G
valueStr = SysAllocString((WCHAR *) L"1232");7 u3 N8 x' x% O% c
VariantInit(&pokeVariant[0]); 2 J$ O! ]) @7 Y2 P- Z0 [" j. b
pokeVariant[0].vt = VT_BSTR; $ O6 G8 K: S# ? pokeVariant[0].bstrVal = valueStr;& p$ R3 ]9 T6 g2 a' m7 I
" x. h1 ?7 q" T, j, Y% i7 n, E, q6 y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ C4 V5 A% B9 j$ e& \% p) H
VariantInit(&pokeVariant[1]); 7 V0 L! G' Z, h8 Y. o, H- {7 T pokeVariant[1].vt = VT_BSTR; 1 ^8 @( E3 d, o5 } pokeVariant[1].bstrVal = itemStr;% y) A1 i6 b( p; p% Y5 t2 v
$ x* J& C7 K0 u& o
topicStr = SysAllocString((WCHAR *) L"system");6 C6 D. k! k9 {: _& ?; Q. ]: V
VariantInit(&pokeVariant[2]); ! X2 ~" x8 u' b' K/ L- F6 Z0 z pokeVariant[2].vt = VT_BSTR;. F' |% l5 M& H0 S6 Q# A2 S
pokeVariant[2].bstrVal = topicStr; ( r, p! n4 e5 p- p P: v) A8 v1 D& j$ J// Set the DISPPARAMS structure that holds the variant. 9 c* y" r( k* J2 w8 P9 m5 E- K1 ?4 B" n. D' E3 K- O* c
dp.rgvarg = pokeVariant;9 B; F; m( i* A. b* [
dp.cArgs = 3;" s! m1 c1 M! V' l' t2 ]
dp.rgdispidNamedArgs = NULL; ' ~- C0 i% b! W N8 M dp.cNamedArgs = 0;& g5 w8 W1 ]4 d
- R/ t P* G" ^) A
// Call IDispatch::Invoke()8 F M: }' ?4 ^3 x
$ n3 e) D+ H9 m2 j7 V' K2 W
hr = m_pDisp->Invoke(4 X3 s4 @4 n" R/ [. p7 L, g9 U
pokeID,' R9 @, W, y9 k& _% ?7 L- Y
IID_NULL, + X7 p/ u- X' E LOCALE_SYSTEM_DEFAULT,) k' F! x) h( {+ F* ^5 W( H
DISPATCH_METHOD, 8 Z7 I2 S0 }; ] &dp, 2 V6 {9 e- @! Y2 I8 v NULL, % C9 _; E1 k T2 v6 A# O &ei,5 d1 }1 ?5 r$ z
&uiErr);. D+ \2 T. ^2 u8 m5 r5 N2 W
( e6 q5 d5 \$ h1 v, X$ k3 I SysFreeString(topicStr); . n6 D; G9 i. X2 X7 V SysFreeString(itemStr);- c J: A6 s" t/ K6 L5 p
SysFreeString(valueStr);& i( q' J* F' j4 v
4 I+ ] M7 L, k8 L: b8 u9 t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???- P4 P2 |8 g+ D
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????8 L" p! U. v0 K1 R# h7 D! T
( B5 }6 n1 }/ ^/ z9 a' V 3 ~3 ~# u4 g- V* g5 H2.这是request的程序 0 q, r: }5 g+ ?4 `7 h// Request a value from Extend) o a5 L' g0 _; O; f$ ^
// 2 i X: O" b# n" K* {, k9 r// Initialize the variant that will hold the BSTR. Set the variant's0 J* l0 i4 _% x
// type flag to indicate the fact that this variant holds a BSTR. Place the+ R( M4 |% V# z @- f0 K
// BSTR into the variant structure. / g; A7 C6 C" u1 t2 @, Z& Q . t8 v8 ~. r N3 J4 J! q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* d0 V6 r# n# F
& A: Y% }3 B% K1 z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 N2 r& Y, H7 A, j. ^6 H, A% ^ VariantInit(&requestVariant[0]); 7 ^/ Z' r$ I& X y% W
requestVariant[0].vt = VT_BSTR; 0 V) Q; W4 Y9 [& _* s8 I" b% p6 { requestVariant[0].bstrVal = itemStr;4 }9 ^0 ^9 |: Z2 X
- U$ M* G' u0 T, } topicStr = SysAllocString((WCHAR *) L"system"); 6 {; d0 M g+ x VariantInit(&requestVariant[1]); ( ^+ M/ e# I$ `3 I; w) I; H
requestVariant[1].vt = VT_BSTR; ) y I" j- B1 `4 A requestVariant[1].bstrVal = topicStr;8 q# ^1 _: \; @2 z5 D. Y3 q; {( \ f) ]: f
4 m& K" H# Y) O- X- r, n1 Y// Set the DISPPARAMS structure that holds the variant. , E' r7 z1 \; p # H3 f7 w4 [; ?4 a dp2.rgvarg = requestVariant; 6 ?) @. p; v3 ^" X; A. D s; M dp2.cArgs = 2; 2 m" `3 j/ b6 W& p8 V dp2.rgdispidNamedArgs = NULL; " V% k% }4 r- {1 O* ~ dp2.cNamedArgs = 0;8 [' o# r1 T' N4 P. X
2 S3 V* J) D* H7 ]- | var.vt = VT_EMPTY; , ]' r! ], E3 W5 P; B7 n" M+ k7 W: b
// Call IDispatch::Invoke() ; x3 K- a" H5 h( [' @& t/ g- w' y8 H; u% z) S6 c) M1 ]) c
hr = m_pDisp->Invoke( 1 w6 Z# d, }0 [/ g, L C: ]* ~ requestID,' Y) @( s! v) g' G6 {# G6 c1 }+ I
IID_NULL, 9 y, q: H% Z5 \6 S9 L LOCALE_SYSTEM_DEFAULT,) w' [/ B+ W9 X n
DISPATCH_METHOD,# `) r B* M4 `" T; @& p7 G: o/ u( m
&dp2,' D4 @8 A3 j4 z7 e& T. [! N
&var, ! O& n3 P$ z4 {! D &ei,$ \1 ] U G6 i
&uiErr);, u! h+ u0 L- e