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 d5 N+ p# _5 k- }6 N
Name = (WCHAR *) L"Poke";4 s3 P& G$ L' J1 D
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hr = m_pDisp->GetIDsOfNames ( / l/ `3 A$ Y' L0 u IID_NULL, // reserved 9 v" z3 }8 q, ]1 f0 d7 q &Name, // Array of names to get IDs for A' l0 n# v( l- j
1, // # of names in the array ! n" U4 c9 O4 [# M5 j/ q3 B LOCALE_SYSTEM_DEFAULT, // System locale b; V- y9 h1 k, Q0 y. p$ J
&pokeID); // Array of IDs to fill on output , b% Q9 F1 |8 C. r 3 @ w! h6 F" ^2 ]7 n# p. L
if (hr) / o d( ~8 m+ w {: q* n$ H* n8 z! \
MessageBox ("Get Poke Unsuccessful"); 7 \ _, K7 ]1 g7 V |$ i+ k/ } return; N6 J3 A" q, M4 s! E% S
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/**************************传递数据给extend**************************************// r# i$ r) ^9 }
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 A2 F$ y7 N }3 o
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valueStr = SysAllocString((WCHAR *) L"1232");& J+ n3 h+ o! g. j. L
VariantInit(&pokeVariant[0]); ) Q6 I6 j8 p6 m( U- { pokeVariant[0].vt = VT_BSTR; . @1 F9 u7 D2 p& h pokeVariant[0].bstrVal = valueStr;4 ?2 F" K# @. {& n
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( ~4 \- P- X- @$ X VariantInit(&pokeVariant[1]); 9 j+ Q0 p9 c, e, z; ^, P pokeVariant[1].vt = VT_BSTR;5 E* \4 w z' ^& v" }
pokeVariant[1].bstrVal = itemStr;6 x; z; o0 N/ a2 h, v, S
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topicStr = SysAllocString((WCHAR *) L"system"); 5 p: w* L7 q: _; ?+ ~ VariantInit(&pokeVariant[2]); 9 }1 i4 }+ M8 u n# M+ i pokeVariant[2].vt = VT_BSTR; - p* z( M* W2 n7 P% ~9 Y pokeVariant[2].bstrVal = topicStr;+ t( } c+ I2 I7 B& H" e
( ]* {( w9 C4 u( d// Set the DISPPARAMS structure that holds the variant./ O1 U8 }' C; w$ k2 y6 I4 P% J( ]5 D
2 z: U) G! e$ C dp.rgvarg = pokeVariant; 4 W" d. Z4 w! T6 |6 o dp.cArgs = 3; 5 D, O; ?( g. q i$ s- p dp.rgdispidNamedArgs = NULL;" g6 s9 `4 h; b6 o& ]
dp.cNamedArgs = 0; ) |0 K1 Z* U1 h* p0 [1 t' r, V- l3 z9 i1 r; j4 B9 i' ^% s3 |
// Call IDispatch::Invoke() " m8 Y9 d! ^- [' D; m: O! U! ^ ( e1 o$ i! v7 a7 @ hr = m_pDisp->Invoke( ; E) @" b; T) }0 G pokeID,, p$ X# U# ]( c& y# R- O7 `7 t
IID_NULL, . N: H, C4 ^1 U2 i6 [: _8 y LOCALE_SYSTEM_DEFAULT,7 ]# D6 K: z6 b5 ^& H) G. ?1 f
DISPATCH_METHOD,* p5 f, O* F1 z$ L& n6 }( K0 R
&dp,* Y+ y& u' V' y
NULL,5 t& u3 B: b9 P
&ei, 0 q1 N1 n. ~: M m n% ]" q! I &uiErr);- c j1 @2 \- S
. i; G7 F5 X+ L' s" k1 _ SysFreeString(topicStr); / ?/ w+ [! y9 D SysFreeString(itemStr); 8 P$ ~8 q+ Y0 Q2 b, ?/ P1 ? SysFreeString(valueStr); 5 i, q8 P5 M- J) ^2 c* H6 t( P e1 _; @0 ~
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???! c) Q' T. b' X+ t$ W5 a0 l5 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???? m. Y& q5 v: G: I* x) A2 O 0 j/ Y6 [" @% t# v ^ a2 q: |, A& J& t3 w4 x9 H! T( ?. I
2.这是request的程序 $ T; p7 s8 W/ \4 T// Request a value from Extend$ w6 o; _& g1 F/ W# |8 l9 s
//' b {0 s9 P G/ y% h. K% H6 G H# Q
// Initialize the variant that will hold the BSTR. Set the variant's3 L* y2 e l0 i! z) z
// type flag to indicate the fact that this variant holds a BSTR. Place the 7 A5 L% r P4 m* D! p) b// BSTR into the variant structure. $ E1 ~1 b+ E' u+ O8 R3 p6 ]; Z9 L! z$ Q" Y ]2 k0 o, b& `
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);( {/ m5 e* E2 W. h6 [
0 I/ r/ S( V% ]+ e6 ^ l# W itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 ]/ z* R- Z6 t& e+ F VariantInit(&requestVariant[0]); . L# ^; o" H2 U) a0 h' @ requestVariant[0].vt = VT_BSTR;, h& w2 f& _$ ~0 L! u9 i
requestVariant[0].bstrVal = itemStr;2 z/ ?* F: D1 T+ {& |6 D
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topicStr = SysAllocString((WCHAR *) L"system");- h) i4 q! p! d% G4 S5 w% k$ _
VariantInit(&requestVariant[1]); ( H3 F$ w# Y Z* U2 t
requestVariant[1].vt = VT_BSTR;( R5 [1 L; G9 `' y8 @0 W
requestVariant[1].bstrVal = topicStr; ) q! G2 a' a/ H- h( c& |2 f$ t8 W/ z( S
// Set the DISPPARAMS structure that holds the variant.) |! [" e3 u: J
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dp2.rgvarg = requestVariant; 3 j6 J! c$ D1 K* d% d dp2.cArgs = 2; : Y" e; z; z/ S8 {' N' o5 n# @ dp2.rgdispidNamedArgs = NULL;& y$ m4 B+ F# y- i" i6 ?' o+ s
dp2.cNamedArgs = 0;/ a5 z& `+ K) ~9 N
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var.vt = VT_EMPTY;4 i# t0 U) T+ A! w# |9 l* Y7 q
! U5 ?' w: ^0 |$ X: ?2 ~6 e J// Call IDispatch::Invoke()- x. \) O+ F5 @, Z3 \" o
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hr = m_pDisp->Invoke( 2 z$ B% @: c0 M requestID, % s( Y% `7 ^0 A% @ IID_NULL,) s$ r7 D/ @+ z3 S! C' m- s+ g$ y. }
LOCALE_SYSTEM_DEFAULT,% D- Q8 O& _, x) n! a. ?
DISPATCH_METHOD, 6 g9 ]* N; b3 i7 g& | ]$ R* ~7 B! S &dp2,& |/ S( N/ h1 [% p8 n6 v6 e
&var, 9 Y1 t: `& N+ ~2 t( S# A &ei,2 C1 |& p5 D1 t* Q4 K
&uiErr);$ p+ J- g) u n
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SysFreeString(topicStr);2 |( l# j! S; B
SysFreeString(itemStr); $ L2 g1 j5 x1 x请问该程序是获得extend里面的哪个值? ) r7 h' `( ~0 o" \, p7 V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????