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:2 l; x4 C; m" a
Name = (WCHAR *) L"Poke"; # a& j$ r7 [ I! M) s * ?. Y: ~+ s5 ^! [" z6 M: g2 } hr = m_pDisp->GetIDsOfNames ( . H2 b& |4 Z4 I) S IID_NULL, // reserved 4 J! { K" i. I1 b &Name, // Array of names to get IDs for/ m7 W2 U) B( W. O7 b
1, // # of names in the array* j6 @8 F7 V0 [ n/ q7 q8 z d2 I
LOCALE_SYSTEM_DEFAULT, // System locale! D6 F$ I6 G: C3 D7 a
&pokeID); // Array of IDs to fill on output * z! ~% R5 L( v$ t ( }5 r1 C/ f8 d- o2 V
if (hr) 8 n4 E( T' S% H8 T/ K {. r! _. F) X0 G9 j, v% _+ X/ W
MessageBox ("Get Poke Unsuccessful"); , j. R( M: ?2 p2 [# Q return;! l4 @% t) j# K, M# E% O& E
} / y: \5 V1 I, `1 t / R1 f5 X, ?8 T5 N# c/**************************传递数据给extend**************************************/8 b0 `' `5 b4 M/ H" Y; |- }# w+ z
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 ~) S8 w1 o2 T0 ]" h9 I
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valueStr = SysAllocString((WCHAR *) L"1232"); U& {# q; L3 S' j$ j. @/ D z VariantInit(&pokeVariant[0]); ) r L& C/ b0 i9 f9 J2 c+ G8 V8 i pokeVariant[0].vt = VT_BSTR; " ]! R* S. H t; E* P pokeVariant[0].bstrVal = valueStr;3 R$ m1 u! i; v
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* f7 q1 y% o2 t5 D+ p. [* H" H
VariantInit(&pokeVariant[1]); 2 N" h/ r$ ?" Z) d# s
pokeVariant[1].vt = VT_BSTR; R* N7 G" e4 x9 z4 F- r
pokeVariant[1].bstrVal = itemStr;3 {8 J. I" T: _4 @$ W
9 `: ^4 t5 c/ l topicStr = SysAllocString((WCHAR *) L"system");4 v2 s" b. w! e% u* u
VariantInit(&pokeVariant[2]); + Y4 M( m4 u0 ~2 e3 ? pokeVariant[2].vt = VT_BSTR;0 n9 z2 `) ]. G3 J5 \
pokeVariant[2].bstrVal = topicStr; 1 r3 k- h( [1 R$ D1 A# i. L& {& U* H J1 }' U& b
// Set the DISPPARAMS structure that holds the variant. , k# U c& Y9 [# J 2 ^: N! n5 T6 u( Y: L dp.rgvarg = pokeVariant;' e' X9 J. m- n @5 g, N
dp.cArgs = 3; , m: R/ w) ?+ h& D+ u dp.rgdispidNamedArgs = NULL;0 M' d2 U4 \9 q/ Q0 p
dp.cNamedArgs = 0;$ f( C8 a6 x' e M9 V$ F9 G' r
! A( v% z2 |8 W1 q// Call IDispatch::Invoke()! I+ X6 w- M* G6 y+ L
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hr = m_pDisp->Invoke( - Q1 Z0 O$ B+ e0 K* E5 M4 r! C; p pokeID, " q i7 z" s9 U5 {; V( S. i6 P IID_NULL, 0 d. h$ m/ ?5 G# v7 x. s2 A LOCALE_SYSTEM_DEFAULT,( N( m& L' r3 f% z) L* m5 q
DISPATCH_METHOD, 8 p) V7 u+ O( i7 U. Y+ J4 W &dp, ( C# N5 \" L, S+ _* A/ t& @ NULL, _7 K7 Q/ l9 M/ S" X &ei, ' U6 ^) L. u- [: I+ S* C( X &uiErr); - {: T6 T F% M5 [# Q- W6 A; C; R9 I+ }1 J# F9 H- n9 v a# ?4 D6 f
SysFreeString(topicStr); & a: v* v! l# q# H3 _- ? SysFreeString(itemStr);, Q! e! W. J0 n
SysFreeString(valueStr);! d' d; y7 [6 j6 n- |: P
$ |6 G2 p- K+ y! d0 ?. E% V$ A( 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???( w) O- k! m4 W3 P
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???? % d: Y0 ^. ~( f4 U& a ' ~1 n% S, L( P; l; _8 v! l6 r$ t6 M) E% o; W) {
2.这是request的程序5 ?, C+ @/ N( q. n) V$ p, R
// Request a value from Extend0 }/ n, T2 T7 m* Y
// ' r6 w& b2 [7 T, \) {/ a' Y- e// Initialize the variant that will hold the BSTR. Set the variant's 5 V4 @4 h5 w& E4 p$ v% G/ g// type flag to indicate the fact that this variant holds a BSTR. Place the 1 C) Q% |7 ?" I9 g6 C" m// BSTR into the variant structure.2 K* _. p' i/ m# s1 B
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- v& c: E q4 h; R
5 Q9 w* ]; @8 Q% V& N2 H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; C; G8 i* c$ M7 m3 ^* ^9 V
VariantInit(&requestVariant[0]); ; q5 _/ | w3 R- ~ P ^, H% ]: D requestVariant[0].vt = VT_BSTR;+ m5 e& e3 `$ |4 ]3 [) {
requestVariant[0].bstrVal = itemStr;7 R. j* x+ W* K+ O& V
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topicStr = SysAllocString((WCHAR *) L"system");) m. E& e- ]9 L* ~
VariantInit(&requestVariant[1]); ) j& Q7 m3 W5 L; b8 |
requestVariant[1].vt = VT_BSTR;2 s9 d# r" i& S4 d
requestVariant[1].bstrVal = topicStr;8 D4 ?( y$ s4 I& E+ K1 X: ?, u
8 q7 W& G. H$ @8 N4 k0 j: |// Set the DISPPARAMS structure that holds the variant.. Q x" D* x: o3 \3 n
) S# S# c. q* \9 M* O+ Y# N dp2.rgvarg = requestVariant;& }$ V* J$ V: n4 Z- b1 Z8 U
dp2.cArgs = 2; 6 L& k& G: h0 P2 d& G3 r3 v dp2.rgdispidNamedArgs = NULL; 2 c. ]- G/ o+ m dp2.cNamedArgs = 0; 7 p* P( t# ]% F' \ ( L1 ~7 E% y3 i* @ var.vt = VT_EMPTY; 7 r4 {2 T0 G2 P 5 A" p+ a' V P- M// Call IDispatch::Invoke() ; p8 ^; Y( @/ ?# D. A3 {( s 5 ^5 X+ r$ { d/ R9 |. M hr = m_pDisp->Invoke(7 j+ s# y/ {- T! @, g, X2 t: w
requestID,3 v9 P% f: l: j. i0 l8 o
IID_NULL, * p' Y" `3 U0 ]! A& } s: x6 k. V LOCALE_SYSTEM_DEFAULT, ' \( a7 A- d# G DISPATCH_METHOD, : h$ R1 L4 {7 ]! A &dp2,3 J4 K( F' F8 w: _/ S( H2 l& x: t
&var, 9 t7 i5 O4 j2 N# o# ?$ N &ei, ( a. b3 C% R* v. P7 H; Q &uiErr);5 u3 O" o- {8 C. ~$ n! k- l4 Z
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SysFreeString(topicStr); / E. h1 q2 |" o2 d SysFreeString(itemStr); # y. v! ^: [- b! _; f2 c- I请问该程序是获得extend里面的哪个值? 4 r5 J! E2 ]0 ~' a3 u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????