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 y2 m# D* u
Name = (WCHAR *) L"Poke"; ( l% o2 @3 Y a( { + T; @ {' P" a( J* U
hr = m_pDisp->GetIDsOfNames (' w6 e k9 m N: b o! G
IID_NULL, // reserved / Q7 j: B$ r- v; H( n &Name, // Array of names to get IDs for 5 T( t: }1 j% o/ ~3 {( ~' Q7 B7 p 1, // # of names in the array 9 e. }( K5 Z, F LOCALE_SYSTEM_DEFAULT, // System locale( @# q, Z$ @: d8 L( a
&pokeID); // Array of IDs to fill on output ! W% Z( J: X% [) l E S1 A- X5 g0 J5 E
if (hr) ' S+ q( R; i( Q { ) c' Z( U$ Y+ c3 ^: } MessageBox ("Get Poke Unsuccessful"); 7 J0 o" s/ [% x/ r/ J2 R7 g2 i return;* x7 e' |+ R9 o+ L
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/**************************传递数据给extend**************************************/ 4 X' Q2 j. A5 |8 y* }7 _1 @& Q pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 2 T& f. T2 |9 B, b- K+ t+ k& R+ x4 J0 Z: F 5 }1 f' T( G4 ~% ~( y5 x valueStr = SysAllocString((WCHAR *) L"1232"); - P! S& y/ F" a( P, \ VariantInit(&pokeVariant[0]); $ h% j _& G% }1 B/ z7 j5 s* L pokeVariant[0].vt = VT_BSTR;% x- A4 M e2 }/ s2 R X
pokeVariant[0].bstrVal = valueStr; : m+ v) T: j+ u/ K$ P' [4 R8 D: V$ B" T8 I' X8 I* k* @
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) B! e& L0 ~0 x- |
VariantInit(&pokeVariant[1]); ( n0 o! M8 H6 O5 @7 d% g; N
pokeVariant[1].vt = VT_BSTR; 7 Y. M! L L5 J0 B8 z } pokeVariant[1].bstrVal = itemStr; . U9 V1 Q7 T- l2 h+ K* B# d3 \. T1 C! V6 E. h+ }8 s
topicStr = SysAllocString((WCHAR *) L"system");/ F) b9 _( {: Z% _4 i% S9 c
VariantInit(&pokeVariant[2]); * B" e) l- P- y0 @' s! U5 m' H" F pokeVariant[2].vt = VT_BSTR;; D/ m' ~: l! |: p/ h8 m2 { g
pokeVariant[2].bstrVal = topicStr; f5 A% W% K* l( e; `7 b
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// Set the DISPPARAMS structure that holds the variant.! p& O2 k+ o1 Y+ p* c v3 O* D
0 p4 c3 G6 @8 H dp.rgvarg = pokeVariant; 2 e/ u* q$ H, l dp.cArgs = 3; % r. q8 E+ u# z" ?: k9 S/ U dp.rgdispidNamedArgs = NULL;, e1 y0 K0 f% l. J. E
dp.cNamedArgs = 0;0 g0 K; ^' A% b3 d0 J& t
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// Call IDispatch::Invoke()( k/ V9 c/ l' R2 r' }; o
, V- L: n3 P) C K9 ?8 N hr = m_pDisp->Invoke( / I/ H6 R8 N! n% I) H S pokeID, |7 m5 ~; W p6 f U$ i
IID_NULL,$ r: N# L, _3 s) |+ ^* X& r2 K( n
LOCALE_SYSTEM_DEFAULT,0 B9 ?$ N% G: }; G0 l
DISPATCH_METHOD, 3 Y: ?5 n8 Z+ V& @& F; r( q7 G &dp, + B* c ?/ b. Z9 r NULL," M5 u4 j& m( Y6 W+ F
&ei, 6 ~ b6 Q8 O% q. h! q& I: c &uiErr);% m5 Y/ M2 j2 k1 \: |$ x
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SysFreeString(topicStr);# O7 g; c1 q; ]) }/ R; j, x2 x
SysFreeString(itemStr);! ?& p/ H$ K4 B& G& x* j
SysFreeString(valueStr); L' C% [4 [, Q& p- b 6 K% E+ s* P \0 ?1 C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???- P) i2 j) z5 B; _2 z& b! _# D1 _
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 l; z) K2 d( r; Z, @0 A
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2.这是request的程序 7 o$ A ?1 L/ R* R* }+ D9 z// Request a value from Extend* R; ?% T; d" \ ~
//, ?0 h0 \: t5 D8 A! i
// Initialize the variant that will hold the BSTR. Set the variant's7 y1 `: z, M9 W$ ], M R( I& V
// type flag to indicate the fact that this variant holds a BSTR. Place the 6 @1 g; J$ N9 e7 f& d; Z// BSTR into the variant structure." I$ q i9 a+ d* v4 o& p
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 N- S; @" _4 W
5 @: Q& b8 B4 I1 h8 p3 X2 s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& Q6 Q3 n$ S$ o" Q( V! m
VariantInit(&requestVariant[0]); " o3 ~% o5 M+ v2 e4 h$ }$ K6 Z
requestVariant[0].vt = VT_BSTR;' B8 B9 r- e0 c6 S9 N1 n& _2 V
requestVariant[0].bstrVal = itemStr;- i5 @) i2 `9 T' m4 i8 W
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topicStr = SysAllocString((WCHAR *) L"system");. n5 J! s) Z5 o# Q! Q/ a
VariantInit(&requestVariant[1]); ' V! a% `& ^/ m% d) Q4 P$ d requestVariant[1].vt = VT_BSTR;6 O& s9 ?# \1 T+ h8 u2 u
requestVariant[1].bstrVal = topicStr; 2 a- _/ G; n1 |( e ?: m # `7 o0 |+ u0 Z# s: G// Set the DISPPARAMS structure that holds the variant.- ^* F& B& \: Q- P
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dp2.rgvarg = requestVariant; 3 s% s Q7 w: b dp2.cArgs = 2;, l( C Z: H6 E/ a
dp2.rgdispidNamedArgs = NULL; " y8 v; F. X% I( G: D, N; F dp2.cNamedArgs = 0; ) J8 U b3 p Z4 n$ q% ~: u % l& b7 H. ~7 P9 E; P, z var.vt = VT_EMPTY;+ M& V* L7 L8 L! i9 N8 x y
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// Call IDispatch::Invoke()0 T% [/ Z; c: _
+ H0 e0 `# H. [, T& V* m; _/ O hr = m_pDisp->Invoke(& }( f/ g. h& w
requestID, 8 p, i9 D, g2 y/ ~3 P' G+ Q/ f IID_NULL,: `7 J" R/ k! {( e, l, g9 i
LOCALE_SYSTEM_DEFAULT,' Q& c: [( S. \' L
DISPATCH_METHOD,6 k0 r x3 B) W n. p1 D. s" Z; O
&dp2,* _! u& \% W7 P$ W
&var, 6 R2 t+ X5 J% U/ {+ X2 m &ei, $ |) X( W# [" M U &uiErr);: T' @1 V/ t# ?1 h5 Z& V8 {0 O
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SysFreeString(topicStr);: Z+ p9 x: y, V8 m0 g$ {. ?
SysFreeString(itemStr);% `$ M* C2 c0 h! H% Z
请问该程序是获得extend里面的哪个值? ; }2 I; A" s" p9 i9 v6 b( L2 l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????