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: 0 G* j' w& M2 ]/ E6 E: `Name = (WCHAR *) L"Poke"; - N% F# N. X2 X" q# x 1 ~7 [! o. l! B, g' |$ U7 r$ D hr = m_pDisp->GetIDsOfNames ( 3 K& e y r" O; {1 r# a2 U% o3 s IID_NULL, // reserved 7 Q7 n4 H2 X5 }8 a. Q8 x &Name, // Array of names to get IDs for * @7 E. s: F: M+ _3 Z7 g# B 1, // # of names in the array Y/ L+ L7 W& x3 @; @& x
LOCALE_SYSTEM_DEFAULT, // System locale ; N. z* E! S: E4 r2 h2 b g &pokeID); // Array of IDs to fill on output / r0 t0 W/ p. [0 Y& n9 w) l : e7 ?7 m+ Q8 Z @ V* w7 n* j5 r/ R
if (hr) 3 x% T' l* `! b; s. C$ q, E { ) j. M( F& G: M) C* G' T. a MessageBox ("Get Poke Unsuccessful"); 2 ]' S7 |- g, @' ?* C( Y return; W& D- O* f# I+ I1 P
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5 d0 {% z$ {: c4 e0 ^+ l& A% ^/**************************传递数据给extend**************************************/ / y( ?7 ~4 V6 q+ f pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 D" Z- E, S5 j: ~+ |% q / R8 m2 z* U5 F1 K% {5 @& \3 `
valueStr = SysAllocString((WCHAR *) L"1232");$ m8 D/ l0 B3 U6 e& D4 w+ ^9 D% _
VariantInit(&pokeVariant[0]); ( \; Y* y. V4 A
pokeVariant[0].vt = VT_BSTR;8 |% w$ B k: D$ ^0 n, o* g0 O) V
pokeVariant[0].bstrVal = valueStr;# }6 t+ B0 r) Z* J# b5 m0 h" w
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) |- _( C" y0 U' k. J VariantInit(&pokeVariant[1]); % I Y s1 ^/ E! D/ B0 V \
pokeVariant[1].vt = VT_BSTR;! z7 ^( {. t- B6 x$ a9 S* i
pokeVariant[1].bstrVal = itemStr;, W% }3 F% I# q/ q V
' v4 f! c/ I! A topicStr = SysAllocString((WCHAR *) L"system"); / O; {% o1 D: Q4 ?/ d/ ^9 | VariantInit(&pokeVariant[2]); 9 J. B7 z0 ~+ N- m( l0 V
pokeVariant[2].vt = VT_BSTR; 1 M S9 r4 x( x9 g pokeVariant[2].bstrVal = topicStr;% U! |- ^+ b# I' k& \) g
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// Set the DISPPARAMS structure that holds the variant. 7 G7 s) g! g5 v0 t v6 F/ C" I" x* h9 P( h dp.rgvarg = pokeVariant; ; x0 S4 O" G: N' r dp.cArgs = 3;7 X5 ^' T8 c* a' C3 q- P* O: P
dp.rgdispidNamedArgs = NULL; , V+ K5 m9 q/ N- n# B7 P dp.cNamedArgs = 0; 6 M- }4 _, ]$ ?( [+ E" e9 u0 `6 R/ J' g T( n
// Call IDispatch::Invoke()" T3 b! P! h5 W4 N5 @5 z I# |3 Y' |. j
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hr = m_pDisp->Invoke( - ^% o6 [# }' W) p2 O% r2 @ pokeID, , ^2 r2 W( |$ V& t5 W# U IID_NULL, 2 D5 {1 ]9 G. K4 } LOCALE_SYSTEM_DEFAULT, # l- t5 h+ Y" W; O0 J# W DISPATCH_METHOD, 3 J/ `2 p. E; B3 n- | G &dp,1 A; K+ r. d/ O$ j7 A2 R
NULL,! u9 l% p! t/ D' Z! m
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&uiErr); 7 Q+ ?6 y" L4 g( V! O 9 |) v' |$ P4 Y) h& V6 d: t) q SysFreeString(topicStr);9 r" A1 U& l0 S2 q1 Q5 G" a
SysFreeString(itemStr);% p: H8 b& f8 D( y6 O+ \& _( U
SysFreeString(valueStr); # H+ \- E3 G- s: Q, p0 w9 o+ G+ @4 }: ? T6 c+ B* B1 d
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??? ; I; J# k6 H. A! X0 ^& q& D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????5 q/ S: P4 v! z9 {+ Q, D; k. b
5 p9 l0 R7 R3 X2 Z# s; P " ]9 E9 k* L3 R; I1 }2.这是request的程序 2 J8 m q( f& U$ _1 @( U% P0 C2 T// Request a value from Extend & k( C# F% p& C) y( \! J+ C5 _4 A// ) |/ V9 S/ \6 F0 e// Initialize the variant that will hold the BSTR. Set the variant's ' ?- S) z5 l# y// type flag to indicate the fact that this variant holds a BSTR. Place the ' E6 _1 }% d# d- s! c// BSTR into the variant structure. $ }$ ? K. A/ ^3 l! X O! W7 ~2 _' V# L1 t7 @+ e
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 7 H; U/ ^) U* i+ B. y $ P' b' I- {0 A- N( e+ R
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. W: a* w+ H4 r4 \* V# \
VariantInit(&requestVariant[0]); ( \/ \: N1 p# L$ |" W
requestVariant[0].vt = VT_BSTR;* C1 V9 f0 y) v
requestVariant[0].bstrVal = itemStr;2 B% p" Q4 @% Q6 b4 v. r$ s