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: ' L9 R" Q/ ?2 pName = (WCHAR *) L"Poke"; 4 d, P& h3 d; T$ y8 y. a7 ~0 g $ x1 e7 G6 x( @. N7 L {* |: w, c, y
hr = m_pDisp->GetIDsOfNames (1 w7 d& L* M F: l9 P( V% h
IID_NULL, // reserved : I: C7 r7 N1 \* \! [0 J &Name, // Array of names to get IDs for 4 H: x5 i7 z; k5 S7 R* u$ u 1, // # of names in the array + }* Z$ O6 G; V. Z LOCALE_SYSTEM_DEFAULT, // System locale* ?9 L. Q' n* ^
&pokeID); // Array of IDs to fill on output- e2 p( E) f9 |7 U L% i8 G8 [% r& C
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if (hr) " g1 W/ c3 c/ w/ U {5 W" N0 l6 W. l; z" l
MessageBox ("Get Poke Unsuccessful");0 ^9 C/ t1 }# r$ P3 L$ X
return; : q: e5 M9 f! Z" f. { } 9 m0 A4 m/ V% I. o5 l6 E; s* v( h0 v$ R8 e5 n- K6 U# U
/**************************传递数据给extend**************************************/ V! C' M# Y$ F6 p4 V+ D) m Z8 x! s pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ) F2 y8 @& T7 L 7 v. h: D5 n$ B valueStr = SysAllocString((WCHAR *) L"1232"); - w+ e$ ^0 G" B/ s7 S VariantInit(&pokeVariant[0]); : R' D3 Q+ \' r9 _+ | u; Y5 ?
pokeVariant[0].vt = VT_BSTR; 1 U1 l g7 C0 |' v; l4 a pokeVariant[0].bstrVal = valueStr;6 m* I' w& S) [8 c/ A/ S
: y5 |* l4 G* K* i itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 O. c" u+ ], T8 M3 J. i VariantInit(&pokeVariant[1]); % q0 a; t& I: I. c/ Y, K3 q pokeVariant[1].vt = VT_BSTR; % q! y0 m% R9 T9 l. ] pokeVariant[1].bstrVal = itemStr;$ ^( q- \+ }; i: x0 Q5 O& E' C
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topicStr = SysAllocString((WCHAR *) L"system"); - B, e# e% y3 z. }+ @0 H# u @ VariantInit(&pokeVariant[2]); : C* h/ l4 U5 n. Y; F5 Z1 E" g5 u
pokeVariant[2].vt = VT_BSTR; c8 f% Z4 B( S+ q0 f# V( g pokeVariant[2].bstrVal = topicStr;. x, N V1 ~) z3 b x* q
8 Q8 J* x U; g// Set the DISPPARAMS structure that holds the variant.1 X0 j3 J, K" z8 a
: @: \$ U* ^) y5 `+ i- H dp.rgvarg = pokeVariant; 2 F! J9 O1 C h: ^ s dp.cArgs = 3;$ U; Y: K+ u' S7 V% h5 h6 b
dp.rgdispidNamedArgs = NULL;! M5 H- n, m$ {( ~% f( D, T1 ?
dp.cNamedArgs = 0; # G7 D: ?9 K7 I+ W7 u1 F9 d" L ( @+ W i2 u$ f9 b( v- t// Call IDispatch::Invoke(). p, s3 A& l- _1 ]* d
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hr = m_pDisp->Invoke() K0 W" c n1 g5 h1 K0 N
pokeID,# g A8 ~5 E6 p: x. V/ e3 r
IID_NULL, * `2 n8 A8 r8 y- i( E' `' N LOCALE_SYSTEM_DEFAULT,, z5 E/ [3 `' L8 P _5 _0 v
DISPATCH_METHOD,% | I2 j" ^/ P. X, e
&dp, 4 B5 f% w; w) n/ B% M( A NULL,* i1 L, g! n. u) ~0 C
&ei, ! Q; N6 E* [( Y9 s4 A0 W v( K &uiErr);- c9 o: S. c' {0 d3 M. {
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SysFreeString(topicStr); & R) A9 B" o4 ]' R8 t SysFreeString(itemStr);7 y( R o( w% s2 M2 g( V
SysFreeString(valueStr); ( G0 J" j& L W3 W. b % O2 Y2 F$ s9 q8 X3 a4 d! F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???( x; g! G! l3 I3 m" H
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????9 ?5 |8 s& H, J+ w- b4 t7 K7 ~
& v( t' {" W* q0 X2 i: O2 P + n8 z5 J7 m- n2 M i2.这是request的程序 * K5 C$ V$ W$ J4 Y$ J; I// Request a value from Extend 9 _; h1 O, K5 h: g# |* l' B//7 P1 q" m5 M. u8 U6 G: Q) H
// Initialize the variant that will hold the BSTR. Set the variant's; o9 m& Y3 c0 a5 g# H
// type flag to indicate the fact that this variant holds a BSTR. Place the . j$ B' _& Y7 A/ e' ~// BSTR into the variant structure. 6 f0 J9 w4 ], {1 D+ I* O( }5 Y/ M 4 d+ X l' d, `2 s requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: h0 E. v; D2 v( {- _0 @0 Q
5 `6 C* P7 A6 b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * c( W2 G) U) c, l# z( p VariantInit(&requestVariant[0]); 7 U+ n' f/ ]2 |) h requestVariant[0].vt = VT_BSTR; # o) D1 C* R B6 C! R8 o- F requestVariant[0].bstrVal = itemStr; . N- O5 Y% J1 v% N2 s W+ m) \- s1 D% g/ K# |) x) S# ]/ M& c6 [
topicStr = SysAllocString((WCHAR *) L"system"); / v! _( ?! F3 ^. l z3 m3 A VariantInit(&requestVariant[1]); 6 C' j4 E% H; N2 l6 O5 D1 y
requestVariant[1].vt = VT_BSTR; ) D0 i8 ], y2 d7 J5 _3 E requestVariant[1].bstrVal = topicStr; 0 T! s e8 y; v! f& W+ v# ~! K* }' F* s" N4 B |1 h( m/ f. T8 D
// Set the DISPPARAMS structure that holds the variant.# M) o( i6 ?- W+ a, B1 G+ n+ y9 z9 l
3 T0 u' c; f4 E* K dp2.rgvarg = requestVariant;' e0 H P3 q( I
dp2.cArgs = 2; - W+ u2 d: Z" G dp2.rgdispidNamedArgs = NULL; ( j8 d! `" p* ]7 @1 k dp2.cNamedArgs = 0; 7 K% ~/ S: ^( l0 m2 \ 2 O3 C# Y6 K" l6 |; b' E, h var.vt = VT_EMPTY; 5 B/ h1 `$ Y+ A# q% M0 l$ ]6 j 2 O3 a3 E# }0 \) {# }0 D// Call IDispatch::Invoke()! b( F/ y/ o, x1 Z. X0 H& f
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hr = m_pDisp->Invoke(2 a& X% k- z& Q+ C# U f2 f, K
requestID, ' G/ q) l/ ?: L2 t IID_NULL,+ X( W4 U% n$ K* D9 d8 ^
LOCALE_SYSTEM_DEFAULT,8 c, k5 |1 T- M
DISPATCH_METHOD, 3 m5 y! H3 c& Q &dp2,0 R2 [: ~$ n6 M
&var,8 Y: k0 K. d0 v( b0 F$ o
&ei, ( V# j7 T6 y) y" P1 \* E0 S8 ~4 k5 v &uiErr);. U- O% ?5 l8 k6 V
0 w( \1 B; l/ n( Z! j) E' T SysFreeString(topicStr);; F: e+ Y e/ m% e
SysFreeString(itemStr); 0 M* `( T# G5 K0 w请问该程序是获得extend里面的哪个值? 3 A( F& h1 ? X" 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????