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:* I I) n+ K! B) L f
Name = (WCHAR *) L"Poke";, o, [2 S J$ `: ]& S, g
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hr = m_pDisp->GetIDsOfNames (- p- C( T: _' \! K% Y
IID_NULL, // reserved ) n9 z" G0 b$ ?8 T7 F &Name, // Array of names to get IDs for$ |) U3 J& `+ Y; l
1, // # of names in the array" l) G* P: R$ ~! k$ R' C. m5 ^6 I
LOCALE_SYSTEM_DEFAULT, // System locale% p* L( o4 {1 O! {3 S
&pokeID); // Array of IDs to fill on output % k# Y1 [. L2 v4 I $ X" q$ d+ D- O! n& H% u
if (hr) ]$ k. y1 _5 m5 |) B5 s2 [+ x {1 B2 H" D+ Z+ k6 V: Q
MessageBox ("Get Poke Unsuccessful"); : s. ]' P" x) V$ B. w return; . M, t/ c" Z) B } 5 k* ?/ v0 A: P : \6 Z' b: M( ^7 ^/**************************传递数据给extend**************************************/) Q( v- _- A) u% e# F
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 ], o2 ]' W, |' l2 Z
- _2 v" ^3 \# ~+ k2 Q( a valueStr = SysAllocString((WCHAR *) L"1232"); , y* l# C* V/ _1 M- D VariantInit(&pokeVariant[0]); `% e4 p* e: g5 I2 p pokeVariant[0].vt = VT_BSTR;: ]; p0 N1 _( n2 {9 L+ t
pokeVariant[0].bstrVal = valueStr; ( @( R; t& G! H9 J O* v% ^ $ L& B+ T' Z; V* D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# A2 |- o- W% Q2 }# J' h& A
VariantInit(&pokeVariant[1]); s* d2 Q/ s9 [; t4 h. ] pokeVariant[1].vt = VT_BSTR; " o' A" e6 n' k( W" J& J pokeVariant[1].bstrVal = itemStr; 1 | P* f" I% L* S8 a+ Q2 h7 o; R2 |% x8 Z
topicStr = SysAllocString((WCHAR *) L"system");( J4 X) }, n$ V
VariantInit(&pokeVariant[2]); * [. q: @) L3 }7 ]8 _
pokeVariant[2].vt = VT_BSTR;3 s; N# _& C: Z0 |7 d! A
pokeVariant[2].bstrVal = topicStr; : f3 P9 ^- c C& ]9 J: ^! i& D; O( _, s3 t& ^+ v- C1 d
// Set the DISPPARAMS structure that holds the variant.- T+ S/ Q6 [6 s. T
1 x. p; z5 D& P, Q8 U* z dp.rgvarg = pokeVariant;, P. m5 X y" ]- J
dp.cArgs = 3;! @' P6 Q! l6 H( V* B
dp.rgdispidNamedArgs = NULL;% \/ |/ z& m3 _) `. W
dp.cNamedArgs = 0; , b! s# [# ~$ S: i/ Z" Q6 Q' _0 S) N3 N4 a8 M
// Call IDispatch::Invoke(); n9 U1 F5 s/ m$ a' s( u
- c* X3 g7 g, @- I hr = m_pDisp->Invoke( , P4 T# ?6 c2 c# ~: r7 o" F# ]8 |/ ~ pokeID,( p! N0 F; r* m/ d
IID_NULL, # d3 z' b8 n0 W% y2 M6 u* Y" S R$ K LOCALE_SYSTEM_DEFAULT, $ _: y. ]9 Z: ]& X3 N" V; s3 f DISPATCH_METHOD,+ x$ G' h* J% G4 V, a, j1 u" E
&dp, \( h8 M" t/ J, L& w1 Q NULL,$ F9 P& U0 f- E
&ei,# M2 X k4 z# r2 u2 {" M3 l
&uiErr);2 {# F2 _) `$ u1 W {; h6 Z
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SysFreeString(topicStr); " p/ I& j- C& S8 ] SysFreeString(itemStr);7 B& U5 ^ h% O) R; y
SysFreeString(valueStr); 3 V5 s) ?' C) [2 K; y# L! e. h: |, e6 ~
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???0 j) e( L' U8 t
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????7 s9 y+ S8 _5 f3 l/ T) Q
$ g: Y- v6 Q9 v( d % v( Q0 x% Q2 m6 }$ d2.这是request的程序+ m2 ]( r x( K$ o5 H, Z# P
// Request a value from Extend ! `8 c( d* ^- k0 k# o k; V// l3 U. f/ w3 e6 Z- C; C: w4 `
// Initialize the variant that will hold the BSTR. Set the variant's 3 v' r! }5 r: ?0 Z6 R: x// type flag to indicate the fact that this variant holds a BSTR. Place the - w+ C6 D: e6 a// BSTR into the variant structure.+ D* D) D$ m! P. |! x4 v
0 R5 g. p3 i" P# w0 {! \" y requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: x: C$ L1 j( w6 ?6 w2 Y
4 V0 F5 q& [* L9 s& w1 e itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" T, v7 g0 T9 Y0 b& c$ {
VariantInit(&requestVariant[0]); & I: Q8 ?* p: S5 _3 t' J requestVariant[0].vt = VT_BSTR;8 f# d5 B( x2 O0 {/ S, ^
requestVariant[0].bstrVal = itemStr; d! \1 Y9 ]! b5 y0 R' K
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topicStr = SysAllocString((WCHAR *) L"system");# A1 t7 ^7 C# w; x# W5 O d
VariantInit(&requestVariant[1]); . o1 |- y7 j* l6 A
requestVariant[1].vt = VT_BSTR;$ c1 V0 ^. Y, Y c" W, D
requestVariant[1].bstrVal = topicStr;/ @1 T& W( K0 l& r
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// Set the DISPPARAMS structure that holds the variant. L( Y! D2 b' x) K
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dp2.rgvarg = requestVariant; m( h! E( b$ N
dp2.cArgs = 2; 6 D& G3 Y: m7 a1 ?3 F. @' F" N dp2.rgdispidNamedArgs = NULL;5 {. ]7 J4 G, a2 a
dp2.cNamedArgs = 0; # f+ ]: W$ E5 I+ a8 a; K( U% P: E7 ? . v2 y3 l6 {6 C" i7 Y0 ? var.vt = VT_EMPTY; 8 o4 A- n4 v2 i: R$ a# C; v, L! B+ e7 t. C8 L6 R
// Call IDispatch::Invoke() 2 I/ k; m6 i2 K6 e / F( ]6 w( M+ c+ T" D0 @1 w! H hr = m_pDisp->Invoke($ H1 u: T: G5 A: q0 s$ S& P
requestID,0 w* f/ |. T i8 r7 i2 e
IID_NULL, . H0 x; }& k M% M! F, e5 c LOCALE_SYSTEM_DEFAULT,/ [6 `2 S L Q- y E z7 s
DISPATCH_METHOD,1 W. N8 h5 u! Y7 J
&dp2,* Y ], w8 G0 i0 Q8 E
&var, 9 @( h0 P( P9 n &ei,7 \" [& p: |& x
&uiErr); + K1 p# z6 L9 b. v/ z2 F+ @" i
SysFreeString(topicStr);: m d0 P# M8 ]; n/ h; F
SysFreeString(itemStr); f9 D1 a* e, l0 Y8 l) l1 t请问该程序是获得extend里面的哪个值?6 m( G0 P, W2 S3 n+ y( @
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????