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: ! \$ k* O0 V! L; uName = (WCHAR *) L"Poke";5 u8 _8 R( W9 b0 I) j7 [
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hr = m_pDisp->GetIDsOfNames ( 8 C2 r2 [/ z; E/ h+ ] IID_NULL, // reserved+ Z) |" l1 f9 y( c$ q9 ~9 e
&Name, // Array of names to get IDs for : {6 A: H' Y4 n+ ^ 1, // # of names in the array0 a' L" m) j' M
LOCALE_SYSTEM_DEFAULT, // System locale " N1 o9 Z# x; v F7 [/ h" q, ^ &pokeID); // Array of IDs to fill on output- u( m& ~0 O% G/ N5 R' q9 A1 h1 C
- u1 c1 a8 K( H8 n4 Q if (hr)( I- V- q s7 o' a9 A4 K
{ , i; u) O. g4 v; j( S MessageBox ("Get Poke Unsuccessful");/ H. X5 @! H- r, U7 j1 @% V- U; [
return; 6 a8 b9 H3 n/ w0 a. S9 o. p } 1 _# y ^" [; Q$ L7 \4 x, g+ J4 L$ m1 t8 n
/**************************传递数据给extend**************************************/ 1 i4 j2 S2 F5 r% a# N- y pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); * z/ i5 H1 ]9 x3 l2 y8 ~ + j& ]& q7 }' \
valueStr = SysAllocString((WCHAR *) L"1232");3 x2 D) D/ L' V- }
VariantInit(&pokeVariant[0]); 8 p5 ?' h( Z! ~0 t" x& K$ y9 m
pokeVariant[0].vt = VT_BSTR; ; Y+ f, b9 F6 J! U6 l7 b pokeVariant[0].bstrVal = valueStr;! L' ], z$ s0 c: e
7 x4 `% A9 l5 ?6 ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); P: G% P3 y: N0 q$ r
VariantInit(&pokeVariant[1]); # v# Y' S0 j( p5 o2 J: Z% h- m
pokeVariant[1].vt = VT_BSTR; " n( q. p0 r& |$ l pokeVariant[1].bstrVal = itemStr; 0 L/ ?! u H4 G) Y- K+ X% m. w/ Z! ^5 S. w6 |: Z- d, r
topicStr = SysAllocString((WCHAR *) L"system");8 {6 j& x) }2 w3 X7 ]; {* `( M; }* O
VariantInit(&pokeVariant[2]); 8 l5 E6 w2 }3 n' s! Y/ f pokeVariant[2].vt = VT_BSTR;$ E' S4 B* O* q4 F
pokeVariant[2].bstrVal = topicStr;: d+ q% p1 V! H9 c q
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// Set the DISPPARAMS structure that holds the variant.8 V# ~# w: E7 {$ {1 w/ K
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dp.rgvarg = pokeVariant;0 m" k* p% h/ i! }; M
dp.cArgs = 3;* z: y# ^8 k, H5 S
dp.rgdispidNamedArgs = NULL;4 [& j5 W- }7 ?" |) D
dp.cNamedArgs = 0;, A/ A6 b! ^& G' R6 [; Y, H
: h! \) [( S* r* s, V- S- b// Call IDispatch::Invoke()/ A- F$ c3 m/ M7 `
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hr = m_pDisp->Invoke(1 w4 \& D$ c3 q; @) z- y
pokeID,' q3 }6 ?" a* g: r
IID_NULL,6 J! h8 S) G9 U
LOCALE_SYSTEM_DEFAULT,2 D3 M* W8 k! `+ H! X% p; s
DISPATCH_METHOD, $ w& m- D3 y/ W &dp, ) a' N# S' Q& z' k1 U NULL,6 u& ^2 z+ W. Y' D3 b
&ei, ' J: C, t/ f; g" e# p &uiErr);7 g* p% j8 I( t/ ?
" g) E5 d8 G8 q SysFreeString(topicStr);8 W k8 t" M/ N" v( I
SysFreeString(itemStr);$ N! d5 ]' F' j" _; K
SysFreeString(valueStr); 1 L# |& c* K: N& [" `4 p5 r % q; L) o/ g( 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???0 e! T* V4 y8 \- {4 s0 E
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???? 8 D; d. Z2 A. m3 D# ~4 M9 k, X: m5 L( _) J+ ~0 M/ c$ S4 S
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2.这是request的程序( P, E6 s& r8 ]& |1 V
// Request a value from Extend1 r. C( \7 y' c5 I; ~
//+ Y7 O) |/ q; z _8 s9 d0 J
// Initialize the variant that will hold the BSTR. Set the variant's* X; C. ?7 H9 a5 o
// type flag to indicate the fact that this variant holds a BSTR. Place the $ g! w( @. A! ?- y* [* @// BSTR into the variant structure.6 E/ N; R- V8 @3 @7 S1 \
: s( g; {# w( t) C0 M" U2 U$ z) c1 x requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); + c/ X" |6 t/ ?. L' p7 N: O& }0 D# @2 i * e9 q. _. A' z) o3 A: S/ }6 y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. v) [7 x, x/ v: O( ]( h1 W2 `
VariantInit(&requestVariant[0]); % |5 ^1 m1 x; z. ]0 z% G8 s' S) X5 s requestVariant[0].vt = VT_BSTR;' }5 I {# o; v7 }
requestVariant[0].bstrVal = itemStr;( Y2 H6 F- b# c
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topicStr = SysAllocString((WCHAR *) L"system"); ( k8 T. u) l8 }8 b: i VariantInit(&requestVariant[1]); ( Z1 {# ?8 L3 ?+ {+ _) A
requestVariant[1].vt = VT_BSTR; 6 H7 z0 ]! s6 L) ~& e requestVariant[1].bstrVal = topicStr; # c c5 t! w9 V0 | X' s* J 3 T% m) y+ r* j/ m1 U; D. ~/ R# v// Set the DISPPARAMS structure that holds the variant. " | _5 E* r" X" B( l / O4 ^# F/ d% f* `5 S dp2.rgvarg = requestVariant;( K" H: \" n; ]3 I% A/ \
dp2.cArgs = 2;2 Q- D4 O7 S! M0 F2 n# k. s
dp2.rgdispidNamedArgs = NULL; 0 M. X1 ^7 Q" j& I dp2.cNamedArgs = 0;: i9 N7 s* m7 U
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var.vt = VT_EMPTY;0 {% ]& i G- c2 O4 S
6 G1 H$ u1 z% L i* u" R// Call IDispatch::Invoke() $ E& O' X Q4 \) D$ n # \) a2 ~- E1 Q: g( i; F4 U0 U3 x: M1 [ hr = m_pDisp->Invoke( 2 r: e8 X0 H$ V. C( z! _ requestID,% P6 I2 A) s* ~
IID_NULL, 2 `) p# [4 v: a+ L4 x' z LOCALE_SYSTEM_DEFAULT, # {" X6 W/ {% z DISPATCH_METHOD, ) W$ S/ T3 U3 x, g) B &dp2, 2 b/ m+ A+ R( t" x &var, ' r6 h1 z" ]* K% L* n: e" C' K" n ] &ei,/ l( p- U3 ~5 v4 v
&uiErr);$ X- Z9 k/ e$ F( M. d2 l/ W% O3 f, M
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SysFreeString(topicStr);; j. o |. f- C) @8 i: u0 h l, H$ z3 a/ a
SysFreeString(itemStr);5 q5 P5 y' s9 u3 J+ M& C
请问该程序是获得extend里面的哪个值?! L5 _9 H4 a0 T7 s
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????