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:: v( ~: F2 o4 k: i4 ]
Name = (WCHAR *) L"Poke";& T' G: s& G& `* ^
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hr = m_pDisp->GetIDsOfNames (' b0 v- n2 _- D9 c) r: t- U
IID_NULL, // reserved* D0 S+ B. _7 i. \' l1 b
&Name, // Array of names to get IDs for 0 l9 m; O0 y5 u3 s7 ^ 1, // # of names in the array ! ?: W1 I( X6 U' D0 E! [# y LOCALE_SYSTEM_DEFAULT, // System locale V4 U1 R, c) w1 Q, v( J &pokeID); // Array of IDs to fill on output ( Y+ B/ T4 M2 ^: T T3 @ g' }3 V 8 @* f5 L1 e8 Z6 J2 w if (hr). V3 y! ]4 O/ c& M+ ^/ D7 B
{ ; }, i: g! \, f1 X MessageBox ("Get Poke Unsuccessful");2 k' o/ l+ I! `4 t
return;6 T b& }5 h9 |: G/ q
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/**************************传递数据给extend**************************************/ + \) L( [8 y7 u pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 5 {: [ x6 x, s! T5 ~ ! s& E- @% B. {* t! @8 b/ Y3 b2 }# x
valueStr = SysAllocString((WCHAR *) L"1232");; E0 m2 {5 |! q B) }* ~
VariantInit(&pokeVariant[0]); + n3 ~) ]* V8 I% K# @$ \8 P$ x* m pokeVariant[0].vt = VT_BSTR; 8 g5 {5 c$ _8 B, G pokeVariant[0].bstrVal = valueStr;9 J) g6 O u( i& F9 P! _
2 ?+ }" ]" E8 X# g6 m itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- v: s) l# U( T# o! j
VariantInit(&pokeVariant[1]); + m ?; E5 o- v# S
pokeVariant[1].vt = VT_BSTR;9 m* ?8 x4 M2 T
pokeVariant[1].bstrVal = itemStr; % k% g" a' O7 n" C$ |2 R( O) Z: Q" E! O M2 e g$ q
topicStr = SysAllocString((WCHAR *) L"system"); " B0 {8 E6 C: \ VariantInit(&pokeVariant[2]); * z. t( m( A7 G; |4 S/ `, G, ~ pokeVariant[2].vt = VT_BSTR; / u2 I4 e. ]3 `+ h u pokeVariant[2].bstrVal = topicStr;7 B, M+ @7 ?7 d ]& [
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// Set the DISPPARAMS structure that holds the variant.. r5 }, i; M" M! r# @" Y
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dp.rgvarg = pokeVariant; - A+ [8 j* H$ r/ X! V z, z% ^ dp.cArgs = 3;; ]9 d6 H9 |+ n. F
dp.rgdispidNamedArgs = NULL;: O: \3 ], m8 a2 k/ ?, b2 k( F3 Y$ z
dp.cNamedArgs = 0;2 p+ ^5 `, p$ {
, G- l, S4 ^) Z! C$ O ?- u2 g// Call IDispatch::Invoke()- l0 ~# f! v9 g6 g
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hr = m_pDisp->Invoke( 2 }6 G8 i* S0 O pokeID, , _9 |3 k1 y$ @& C0 q IID_NULL, - C$ V3 x1 ?+ d8 U) d LOCALE_SYSTEM_DEFAULT,, q I) P9 U* K' {8 N9 N
DISPATCH_METHOD,2 S" ?. v5 O+ H# d
&dp, y) n$ A+ F2 [6 i! `3 @" r NULL,, [& ]# M" f* V
&ei, 6 k7 F! p/ W! F1 O/ Z- C1 n8 T+ e &uiErr); " ^# g$ u5 x1 Z$ }$ b5 Z5 P T7 Y4 X8 I; i- I' s2 c
SysFreeString(topicStr); 1 c& r/ W: N; S9 f; u h. q SysFreeString(itemStr);: n" c# t. v& B) i- W7 ] Q$ w& i2 J
SysFreeString(valueStr); $ U$ P! }) ~- S5 g8 ]+ b, d" W* 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???/ l, X, B/ N& c
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????- c, f2 f& j/ v, u1 s8 C4 K4 L
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/ @: l1 y& G) E- d3 d2 w2 X3 W: _2.这是request的程序 2 B, B$ Z* N" G) C# v6 G! F// Request a value from Extend 6 x6 v# X3 \1 a& ]% r//( \% M) W- r! W% u
// Initialize the variant that will hold the BSTR. Set the variant's7 X7 V1 }+ \9 i
// type flag to indicate the fact that this variant holds a BSTR. Place the 1 t' M) w" \$ G) o// BSTR into the variant structure. 5 Y, D( ]1 z9 u! D' b 0 u0 }1 ~: M4 E& n q: _5 X requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ u1 `0 q9 L7 n+ N5 L5 P+ B
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' V8 E1 M( G+ r3 n4 n/ d- r VariantInit(&requestVariant[0]); 5 i; h' ]* @4 N. X9 \4 Z5 a
requestVariant[0].vt = VT_BSTR; ( Y9 j9 ^6 E. m9 g. X requestVariant[0].bstrVal = itemStr;1 Z# @( L3 p% u
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topicStr = SysAllocString((WCHAR *) L"system"); % M/ k) F: R! O! s5 E& N8 j% m% \ VariantInit(&requestVariant[1]); % O4 [# y5 q* ~& f# v requestVariant[1].vt = VT_BSTR; % L( i1 Y9 x( R3 `# v7 k( V: I requestVariant[1].bstrVal = topicStr;' H ]4 b' B' ]& q, j
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// Set the DISPPARAMS structure that holds the variant. ' P, [3 O. Y7 V% ]! ?: n , x; H7 I0 }; \# ` dp2.rgvarg = requestVariant; # N8 H* ]$ z' l+ ^ dp2.cArgs = 2;0 X7 o4 t7 T" x8 Z! t T- {
dp2.rgdispidNamedArgs = NULL;) A1 X& n6 F3 X" p1 ^8 I" ^3 X
dp2.cNamedArgs = 0;$ w+ v7 f/ U# ]* ~+ Y# f
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var.vt = VT_EMPTY; " T# p, C1 e9 z7 c9 _3 W$ y, w" }2 A. N" Q
// Call IDispatch::Invoke() 4 D* _$ @$ c1 u # k4 Z0 F1 m. L: V& R hr = m_pDisp->Invoke( & _8 [% R* F. o) b @2 a6 E+ E requestID,/ F: M4 t- ~: p( S+ _3 Z* _
IID_NULL,$ L% O* j% a4 ?5 t6 J6 y
LOCALE_SYSTEM_DEFAULT, 1 ^+ |! D! Z4 x- k6 K/ \ DISPATCH_METHOD,! B. X2 N5 }5 M# [
&dp2, ( y& N, f ?! t: n0 `' f &var," K( R+ ?8 q# D
&ei,; Y' y) x/ J! L
&uiErr);5 q7 {1 l: Y* R% N' j3 u
# l/ g5 b- b k/ C SysFreeString(topicStr); ! \' W$ h4 e4 e o, s: M/ H SysFreeString(itemStr);1 U& M1 q2 s% w* s% T
请问该程序是获得extend里面的哪个值? 3 u& `+ r* r. `3 X% C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????