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: - F. R0 \1 d$ a# v. i; wName = (WCHAR *) L"Poke"; $ O$ S/ u4 C9 ^( L ( C& L5 o, @6 \* b7 M hr = m_pDisp->GetIDsOfNames (6 b4 j& {1 @& a& Y
IID_NULL, // reserved6 V, I( o; ~% }5 |1 m$ s/ T2 f) S
&Name, // Array of names to get IDs for1 k" O7 I. x2 W- L _
1, // # of names in the array 8 N8 r: h, q9 } \2 ]; `( }: Y LOCALE_SYSTEM_DEFAULT, // System locale9 T I) F8 |' O0 j
&pokeID); // Array of IDs to fill on output3 z. i! N) ~" i! g( a
. }- a" B" g( {8 M1 g$ W9 A* j! d if (hr) 1 Z4 W1 O2 Q: y" q9 @ { l) O7 h+ N0 U+ h1 w MessageBox ("Get Poke Unsuccessful");) U$ f3 q1 ~" M0 ^2 M- n) T; W8 k
return; & K3 K0 F. Y" s# D8 o! f }- e, r4 q& D3 I, F2 D6 _; ^
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/**************************传递数据给extend**************************************/ + N" J. h: m& A( K) f1 G1 m0 N pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); + p2 W0 L- _" c6 h3 l . I9 q6 h' t! g# z valueStr = SysAllocString((WCHAR *) L"1232");) d! G6 Z% y9 d% s! r( Z
VariantInit(&pokeVariant[0]); 9 d) d, @' t1 e1 n5 R+ \) |1 X% u pokeVariant[0].vt = VT_BSTR; % q7 U5 k* _: e. f3 d+ k% T pokeVariant[0].bstrVal = valueStr;+ I' I( q- E' O4 X5 C8 }
9 L! m+ N/ p3 C* ^/ v5 K0 B' y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * S" e6 j5 r- x0 y, i VariantInit(&pokeVariant[1]); / F# r6 H/ y5 y& y) K# m pokeVariant[1].vt = VT_BSTR;9 P8 h8 p% z: q L
pokeVariant[1].bstrVal = itemStr;0 }. |# V1 n5 n3 o$ k% @7 @; T4 g) F
, Y# c8 E8 `3 x% [% k( P topicStr = SysAllocString((WCHAR *) L"system"); 7 [: Y! ]5 F7 d! ~; T& G2 z7 b VariantInit(&pokeVariant[2]); ' G) A. v, [8 j! d9 U pokeVariant[2].vt = VT_BSTR; , |$ e5 ?8 Y* R* @. N- w pokeVariant[2].bstrVal = topicStr; % T+ z$ E5 G& x) N2 A5 ?6 C ; |0 A" [5 D _2 f& K// Set the DISPPARAMS structure that holds the variant. + C, }. K3 k$ i) E Y% L z) m 8 q; i! i- ?- H dp.rgvarg = pokeVariant; $ h3 a! @, Q( O( q( z dp.cArgs = 3;- G t1 w- C e; {; e- u$ ?- _
dp.rgdispidNamedArgs = NULL; 1 J# D: i5 C1 r$ @ dp.cNamedArgs = 0;# c3 q! C4 S7 s5 q2 ~+ k1 U
' y( q" j( x+ @ m9 U* y7 }// Call IDispatch::Invoke()8 D. A* ^( T* V# N# X
4 }: u6 y6 p3 b* p, r& X, O( b hr = m_pDisp->Invoke(; \5 u0 H! Y- P1 o( o/ V
pokeID,% T0 h. |5 z8 B, z& ?, U
IID_NULL, # H$ } h, u$ Z LOCALE_SYSTEM_DEFAULT, ' }0 n4 u/ W4 O) h' U, T. \$ W DISPATCH_METHOD, ! }( U2 X ]" g4 f &dp,1 @, B7 c" e8 v7 E" ^( ^; ]
NULL, . r* j2 l& |% G2 ^0 X- X& \/ ^ &ei,! d: ~$ [0 X* x& V# N$ y+ k
&uiErr); % Y/ t) O* y) F, Q5 ?! i+ |6 V. |& h0 A/ S" R
SysFreeString(topicStr);" n* _2 n; c7 v6 N5 _* i2 a
SysFreeString(itemStr); . E- e# e% J/ \& |; y SysFreeString(valueStr);0 u+ B8 g* z7 q/ Z
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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???, L. ~& C o+ @5 J
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???? 3 |# V4 n/ s. o" ? Y6 M4 f. s3 a3 M, f7 D( w* d' A
$ D! M, \2 w. @/ I6 O0 f& A2.这是request的程序- U- s/ p; N8 ]
// Request a value from Extend) E8 w! `6 L$ s/ y+ e8 Q' Q" D5 \
//8 ~% p9 B7 ~+ }8 u+ _4 G1 f
// Initialize the variant that will hold the BSTR. Set the variant's - K! D% W; d' s// type flag to indicate the fact that this variant holds a BSTR. Place the 7 j- m. U" R9 r" G// BSTR into the variant structure., ?1 L* r. }2 Y) o, Z+ d
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% u9 D L, J2 v+ R0 W. g* n
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 p; C4 C# O8 y! q8 [3 ?$ O
VariantInit(&requestVariant[0]); - p! Z: K, R4 A, ^ O
requestVariant[0].vt = VT_BSTR;8 W6 \' R, N0 S& _
requestVariant[0].bstrVal = itemStr;8 a7 H% C9 | v L/ K6 U" m$ u ]
$ I, y+ ~( V" _6 g' k g) F topicStr = SysAllocString((WCHAR *) L"system");* ~+ n" G2 H" _" r$ ]* }
VariantInit(&requestVariant[1]); 2 E* r: Q: i3 G' G* V requestVariant[1].vt = VT_BSTR; h, x" c2 N2 s* x9 |
requestVariant[1].bstrVal = topicStr;* h n$ Y: W3 _0 d
( H$ l/ c' ~8 ]5 S* h// Set the DISPPARAMS structure that holds the variant. 8 S) ^5 V8 `1 h4 N : a4 {0 X" T! |0 X" i* ]* A: o dp2.rgvarg = requestVariant; . _: |# Y8 T, M; \. c1 a dp2.cArgs = 2;$ s: g& S/ o6 J, ?1 Q6 P1 J- g, W
dp2.rgdispidNamedArgs = NULL;# E& Y: J1 s6 K
dp2.cNamedArgs = 0; 4 W- H7 }4 i! n( ^, M! E( J4 l- \) d( r* ]7 I
var.vt = VT_EMPTY; % b) x& e, J% C; x. X : A+ l' D7 v: I' e// Call IDispatch::Invoke() 5 y" e3 Y2 e u" P* A . s2 f: B6 u' x _ ^" X hr = m_pDisp->Invoke(3 Q' b* U9 k: x) k7 C
requestID,* F" x: }0 I% h, k. ~" k8 ]% _
IID_NULL," T. i7 m! T+ G% H( \ o2 t5 k
LOCALE_SYSTEM_DEFAULT,# e: f) M: ~% u% e9 `
DISPATCH_METHOD, ?9 u! `* I& e0 V) J4 n &dp2, o7 y: S- L% r1 v3 |4 s' k4 C8 x &var,) C E. [, q) M# f
&ei, ( {) e5 R( E" ^$ f8 N. K &uiErr);+ o5 R% l& M! W, G) o0 l
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SysFreeString(topicStr);! J- Y3 H& y( T8 A! z
SysFreeString(itemStr);8 q. J5 X( {& N; ?
请问该程序是获得extend里面的哪个值? % W9 h: Q3 [& _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????