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:& Q: U- c2 P" P2 h
Name = (WCHAR *) L"Poke"; z7 M* I t& u 4 Q1 u- d; @' S G hr = m_pDisp->GetIDsOfNames ( 6 N' b9 r# j+ k U& o/ n IID_NULL, // reserved 7 M: z( |' v A &Name, // Array of names to get IDs for 4 g( y! ^7 s5 P3 i 1, // # of names in the array$ c! a" C0 H; O& ]
LOCALE_SYSTEM_DEFAULT, // System locale7 `0 z) x7 x( A; H4 \ A6 i
&pokeID); // Array of IDs to fill on output6 n! b# d* }* ~1 @+ A5 W7 Q/ n
! S4 t7 ^; s6 q if (hr) 0 Z, t) {# F. ~& @4 c; Q% d { # {9 A1 G# P' Y, n% B2 y/ z3 v MessageBox ("Get Poke Unsuccessful"); ' ], [6 Z8 I" ? return; ; e! X) N3 ]3 i' V7 i } 3 I% ^/ B- s6 q1 ?7 u/ I# y* ]& U: D. q$ H5 U. P' k4 A1 x
/**************************传递数据给extend**************************************/7 n4 w& r( H8 e Z
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ; [/ J( i$ h( J* Y 9 v! }& H" M/ U% K+ I valueStr = SysAllocString((WCHAR *) L"1232"); ; ?7 p2 Y k) x: V VariantInit(&pokeVariant[0]); : y P1 c) _7 n- {1 \' I- B pokeVariant[0].vt = VT_BSTR;, _0 J+ l7 N' h
pokeVariant[0].bstrVal = valueStr;$ I. q* b5 @1 W& t
! n P B7 F( S5 D* t( M, [' ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - i7 m3 n& L3 ` VariantInit(&pokeVariant[1]); 0 L4 H& {- H2 f$ q) i( v; z9 l pokeVariant[1].vt = VT_BSTR; " G/ G0 z+ z2 Y4 L7 m pokeVariant[1].bstrVal = itemStr; 7 L. _: F5 W4 ~: _8 V/ a, v5 e# ?; U9 [$ {0 {) U- j8 V
topicStr = SysAllocString((WCHAR *) L"system");/ Y* r; O' c+ [8 G" t- Y3 K
VariantInit(&pokeVariant[2]); & p2 N( S3 ]* y! c T pokeVariant[2].vt = VT_BSTR; . S% @) p! Y& s+ l5 y# |* D a pokeVariant[2].bstrVal = topicStr; ' R1 R. o3 r* S5 |% B8 s% c5 h' L% T8 A, I/ { s9 V
// Set the DISPPARAMS structure that holds the variant., X! p8 f0 j' z- u) s
! S) P. F" p W+ N! O- H6 } dp.rgvarg = pokeVariant;. ~( n+ G6 d3 x6 H3 @8 ?, Y1 }$ Z
dp.cArgs = 3; ) D. P* Y% G0 e( b3 F9 z dp.rgdispidNamedArgs = NULL;9 D& N9 D! D1 A
dp.cNamedArgs = 0;/ R& S9 V8 }# ^! l
" h( d0 t. q7 I0 F i k// Call IDispatch::Invoke() , E' {9 I% V- t & ^, z2 m2 N) B6 L, T hr = m_pDisp->Invoke(" ^* S6 V; R4 n
pokeID, * p. n( ^9 }% M IID_NULL,4 z b. V: u" a; p# f; Y( ^$ w. Q
LOCALE_SYSTEM_DEFAULT," ^1 a4 D6 N$ z# f( H4 r! W3 h
DISPATCH_METHOD," v) l- {* N" W3 a
&dp, ' e1 }# C3 R9 v1 o; W NULL, " _% U& C, K, S) S b2 C7 U &ei,4 Z) `/ }7 Q" H. Y* z& L3 O& b
&uiErr); ( ~1 t8 h! p: {' [$ e9 ^ 6 E9 r) E' j8 [! ~ _0 H n. o SysFreeString(topicStr); . v/ z: [. ~7 D SysFreeString(itemStr); 2 m: C. }6 A" m9 I SysFreeString(valueStr); " c; q8 j8 m D( W6 h5 E2 [6 A/ Z7 f% j( h! U Z
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??? v d+ S! g4 G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???? 5 c8 o9 o. K o3 ?' i) c ! T0 v5 N- v) B9 O" ]* d * I8 \( x# g$ \' b; z2.这是request的程序 " f4 S! o1 v4 h$ ~: q. I. W' z) n// Request a value from Extend 3 ]# m1 i6 R) ?2 C% i7 x// X4 n0 V. x. S+ X9 E0 q
// Initialize the variant that will hold the BSTR. Set the variant's8 {4 n* N+ T, G5 D% y- \
// type flag to indicate the fact that this variant holds a BSTR. Place the9 `* _* r9 q+ ]& O& J5 O0 z* }
// BSTR into the variant structure.+ [: z9 O' [8 u8 W1 _& ^# W: B# F2 [( P
2 I* p: _! q" ]/ q
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ) r. ^: e. | l; t" W$ Y ! r* H# |" n& L6 s" Z: K. ~5 f itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 e& Q+ @! Z3 C' S, D9 v+ e! Z VariantInit(&requestVariant[0]); ; l3 g: O+ j$ X' R$ S \- B" `5 B requestVariant[0].vt = VT_BSTR; 9 _. G. ]& |( U4 R: M requestVariant[0].bstrVal = itemStr; & n' J) s( {' i3 c) C5 @: _* q; j1 F: k: w0 k3 \
topicStr = SysAllocString((WCHAR *) L"system");$ P8 p! H$ o4 ^- M* D2 i' j' P
VariantInit(&requestVariant[1]); $ g$ y1 d, [5 S; J$ v0 W
requestVariant[1].vt = VT_BSTR; ) ?4 t- V h0 ]2 B# g; I requestVariant[1].bstrVal = topicStr; q7 E6 E+ N9 K6 V
3 Q9 h+ ^4 a7 ~& t6 @
// Set the DISPPARAMS structure that holds the variant.1 r* k1 E* o' P/ D/ r
7 e! o* Y4 R1 ]* X4 {% U, a
dp2.rgvarg = requestVariant;7 G% ?, p% `+ [
dp2.cArgs = 2; 4 I( ~* H& Y) L9 X" m/ ~ e4 ] dp2.rgdispidNamedArgs = NULL;) O0 D, A5 O$ z% b3 V
dp2.cNamedArgs = 0;& R, T+ U4 R( e& ^9 B4 i7 \
8 d( x# E7 _+ t* F var.vt = VT_EMPTY;* ~! V v, L) g! M8 N- j8 k" }. O. j, t: q$ x
# t) S8 a/ Z6 b7 i% O$ s// Call IDispatch::Invoke(): H, R$ p# ]6 N
- R( [ K: @0 @1 a% N$ s
hr = m_pDisp->Invoke(' \1 O: l' y& X8 ]
requestID, , y+ W2 T) K( i8 P; n2 E! u IID_NULL,: Z/ B6 Z7 j6 ?
LOCALE_SYSTEM_DEFAULT, ) {+ T5 A6 y" l& j+ P+ U1 I DISPATCH_METHOD,, A H z% S w, n. C
&dp2,) o, u1 ?1 G7 j/ o6 W& d
&var, & j! `2 v3 U1 D" a. F &ei,, z) ^# |2 L% {% k0 W2 B
&uiErr); 0 x1 S3 s, _/ a. E( W5 i/ d( v6 o$ v; A ?
SysFreeString(topicStr); + I' d% J3 P% {2 q. `3 ?- g) m+ g SysFreeString(itemStr);, A: `, Z' `. ?
请问该程序是获得extend里面的哪个值? 8 |8 Y5 v! q5 ^5 }1 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????