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: 1 n9 G2 A/ r) s |Name = (WCHAR *) L"Poke"; # M! v: a$ y r- b; C 0 t2 C e0 d: a3 m+ B. h" o( d# l8 e) k
hr = m_pDisp->GetIDsOfNames ( 5 l& ?( s1 U5 h" V2 Z8 L {6 f IID_NULL, // reserved * Z4 {; y: {5 Z T- \, ] &Name, // Array of names to get IDs for ( n. W/ K1 b ^$ } s% s) l, S& C/ L 1, // # of names in the array, L+ X8 S/ U2 X9 w0 k1 ]
LOCALE_SYSTEM_DEFAULT, // System locale. l/ ~2 y) ]9 a" Q/ u6 W, p$ |
&pokeID); // Array of IDs to fill on output4 p2 c% |1 h& u
/ a6 v. Y/ W o9 v if (hr)! I; ^+ |! U' v/ Q) P" ]
{ % c+ _% I* ?1 E3 v% z MessageBox ("Get Poke Unsuccessful");7 S( k% _9 g. ?$ n6 O7 b) P. C
return;% s) E* G: F2 F. x+ G
} K$ _1 d/ | ]
' _% Z) S, S: n2 I! \+ r valueStr = SysAllocString((WCHAR *) L"1232"); : p Q T5 r! _; ?; A8 x" I VariantInit(&pokeVariant[0]); ( }7 w9 n3 ]+ @" K8 D8 \- P pokeVariant[0].vt = VT_BSTR; 4 r! \4 J* @/ }, Z7 n pokeVariant[0].bstrVal = valueStr; 5 ?' r2 D, K& K- a ' i% O& I3 g7 h% u" L+ O8 S. [% E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 S V1 Q N2 e4 P0 ~5 s
VariantInit(&pokeVariant[1]); 7 [( D4 z+ t7 Z( j" Y {5 |& ? pokeVariant[1].vt = VT_BSTR; 4 W0 H: s; w- Q5 s* m' s1 d2 ^ pokeVariant[1].bstrVal = itemStr;6 F/ P& Y: ]6 D' \0 Y/ d
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topicStr = SysAllocString((WCHAR *) L"system");5 w! V. I# k! l
VariantInit(&pokeVariant[2]); 5 }! Y0 |5 Y4 ^
pokeVariant[2].vt = VT_BSTR;5 K7 P* a% A0 q* Z, E a9 B3 a
pokeVariant[2].bstrVal = topicStr;- O$ X4 q( z, F5 \. k: J g
- \. \: P5 b! t4 I) j+ g8 |$ @0 E// Set the DISPPARAMS structure that holds the variant. * Q" }2 i: w$ q& w( d : N! Z6 k" s0 J3 j& u dp.rgvarg = pokeVariant;: K3 H3 t& m, p2 C! b& z, V- r4 o
dp.cArgs = 3;2 [5 l) N0 ? U6 O# C
dp.rgdispidNamedArgs = NULL;, Y& _ I9 p, o- _% o& {+ U, r g
dp.cNamedArgs = 0; % ~ j9 n( z+ ?$ q1 P7 n8 Y/ T2 c7 ~/ e7 L1 H1 B" \
// Call IDispatch::Invoke() 9 X7 u5 P! r7 e8 y" {9 R- a' P5 b5 K7 D
hr = m_pDisp->Invoke(0 }9 r! X7 ]1 k& J5 w. [2 b
pokeID, : B1 T4 L& g# c IID_NULL, - K) F0 n6 d! o8 M0 E: ^ LOCALE_SYSTEM_DEFAULT, 4 S2 E* @& g. u5 W0 a2 l DISPATCH_METHOD, . N. t0 C+ t% ^; B8 a$ | &dp,$ [2 u/ A% `* P) C" E1 C* ?
NULL,: ]( V! _4 H: i( |5 N6 g# \8 R
&ei," B! \, L+ `1 c9 h; |
&uiErr);5 m7 o! C0 A2 V
7 X) m, b9 j# c3 O. v4 v SysFreeString(topicStr); " b- }; N: {2 Z. `& A SysFreeString(itemStr); 9 P k( ?" u" N0 [* x. k- j5 | SysFreeString(valueStr); 6 T/ L! ?3 x; W) Q6 `5 {8 [ C' v B, j* \ ^/ [2 q$ W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??? ' N6 u% @% X* B. r/ a1 b) U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???? " Y; B' d# O2 d# {0 A& c( h# }. j8 u# z% a3 n) ]9 N* m4 E
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2.这是request的程序 & s" F' K) ?! n. Y0 q" J3 H9 j// Request a value from Extend4 d2 X! \+ j) c% C% P$ ?
// ! M4 P6 L$ V) j7 @& q0 z& N+ a1 \// Initialize the variant that will hold the BSTR. Set the variant's & M' ] j- }, M. C9 s7 T// type flag to indicate the fact that this variant holds a BSTR. Place the / U; m! W S5 ] b: G# L// BSTR into the variant structure.! W6 U- u$ ~ M6 b
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: t# Y1 ~, L3 B' U