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: 5 x# T: K; x. \: lName = (WCHAR *) L"Poke";3 R$ p$ R i o
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hr = m_pDisp->GetIDsOfNames (& S$ S( d$ G. W# l+ h
IID_NULL, // reserved4 x1 d* ], V0 o- L/ A- u
&Name, // Array of names to get IDs for 8 Y4 y4 Z2 V7 [. u3 x k- L) y 1, // # of names in the array % ]: X) W! b- y V8 ` LOCALE_SYSTEM_DEFAULT, // System locale1 S6 X+ `% l+ l) b: _
&pokeID); // Array of IDs to fill on output " k+ ?; k: l. B6 Q+ ] 3 D; C+ S. p% s+ |3 |' e
if (hr)' |9 n4 u* A& s8 G* r: w* x
{ 3 I3 o \! {) a3 ?( X MessageBox ("Get Poke Unsuccessful");( _$ Q2 Q1 V" m I( B0 Q
return; , o% s* h: z9 }: F }: D. ?# c8 n, u/ h
7 G$ a! d2 E* @! S p/**************************传递数据给extend**************************************/3 Q% f7 x8 ]3 Z( q' u. d& K7 X- N# R% Z
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 v+ J* l- M4 E 7 ~% j& ^- F/ [* J
valueStr = SysAllocString((WCHAR *) L"1232"); : p& Z) |0 ^7 }" G VariantInit(&pokeVariant[0]); * a" s5 B% j& a: ~
pokeVariant[0].vt = VT_BSTR;7 ?* E F6 B: C, x g ?9 p
pokeVariant[0].bstrVal = valueStr; 4 R5 i2 G k5 Z- h 0 u" q% b; B, G" \% n itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / B- y& c7 U4 H' B m! B* W VariantInit(&pokeVariant[1]); + j, b% ~7 p/ c7 Z3 @
pokeVariant[1].vt = VT_BSTR;" M- q9 q8 K; ~4 `
pokeVariant[1].bstrVal = itemStr; 3 D G8 ?9 o: J( c, V3 Z$ e) c " `8 i6 S2 r3 x. e topicStr = SysAllocString((WCHAR *) L"system");; w ~# V/ a& h; I% C( P. X
VariantInit(&pokeVariant[2]); % p5 W I/ f! ^8 A U pokeVariant[2].vt = VT_BSTR; 0 ?$ F' k6 C9 p, U" }3 _" c pokeVariant[2].bstrVal = topicStr;6 |: @6 p$ y C- j$ B: P; d/ R
* T* \, x! P- ^7 ~" U9 A% b// Set the DISPPARAMS structure that holds the variant.% ` m; X* y. I Y9 t5 u: I
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dp.rgvarg = pokeVariant; " g4 I6 y& V+ Y: ] dp.cArgs = 3; " F; W$ G+ \& D% M. z dp.rgdispidNamedArgs = NULL; # E0 F B% B' h, [) J dp.cNamedArgs = 0; - I& r5 |" I( N( e$ r$ m; e/ ? # K( K9 j: n9 j// Call IDispatch::Invoke() $ E. H# g# E# s+ S/ ?7 t' s) d/ j 3 g( h7 r8 _5 f0 j/ F. Y hr = m_pDisp->Invoke( 1 {* U# L3 v j7 H pokeID, 2 K" f) U+ \- a0 e! i IID_NULL,4 l L1 a9 K. Z/ D" |
LOCALE_SYSTEM_DEFAULT,, B0 y$ s& Z6 z5 o/ X
DISPATCH_METHOD,0 ~. K2 C% U) A8 F2 Z/ ~# y
&dp, 3 \7 {' q# v& B' \2 [ NULL,8 i- \2 n* y* \
&ei,; h5 z& ?4 [5 z x( o
&uiErr);2 E4 B+ l1 f2 F- C
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SysFreeString(topicStr); 9 M+ A: ]* [9 E& D SysFreeString(itemStr);5 X' r5 ~3 i& U
SysFreeString(valueStr);+ ~# ], ~+ K# c( d
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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???) j, D/ ?- X f2 |6 t, ~( P" 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????0 ]- B8 i1 A4 v) T) x7 ]3 ~
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2.这是request的程序 ! X G4 p" A( J// Request a value from Extend $ X6 M# {- a; C& @//+ F6 ]$ N. Y: r0 H" ]" ^
// Initialize the variant that will hold the BSTR. Set the variant's 8 y- Q: |3 ~: `% d9 d// type flag to indicate the fact that this variant holds a BSTR. Place the ' ^6 R% c; @# n9 \2 e) | i' D// BSTR into the variant structure.7 O! P. {; ~4 g# j
, g# @) G; |' W$ r( Y' N2 Y" @ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 8 G, N0 c! d0 T$ G" X L : l% k) f5 Y1 k; x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 F; G" D2 B: l+ L$ }
VariantInit(&requestVariant[0]); - d D. S& o# K# A- A requestVariant[0].vt = VT_BSTR; % C9 ], T7 z/ K' t requestVariant[0].bstrVal = itemStr; ! P: b! \: D0 v. T3 r! `$ K1 O3 p, X% O' u5 }
topicStr = SysAllocString((WCHAR *) L"system");, }1 P' E1 v% A: L, V! u/ g
VariantInit(&requestVariant[1]); ! c( h( Q! }( L( [( O5 Q1 M X requestVariant[1].vt = VT_BSTR; 7 v; {* |3 D5 q requestVariant[1].bstrVal = topicStr;/ h: A! [. f1 s7 `
6 [7 N6 x( J! N// Set the DISPPARAMS structure that holds the variant. : d9 W% a* U' w2 j0 @( u6 _- l; \" u% f" d2 ~. z
dp2.rgvarg = requestVariant; 7 d9 ~6 R; l) D# a7 g; t dp2.cArgs = 2;8 C3 S4 U& L3 x" P) ^! p
dp2.rgdispidNamedArgs = NULL; % R' a* X, y5 p4 m- ? dp2.cNamedArgs = 0; * S( Y1 k8 r! x' W : ^' [- K. b* ^( K# c. P var.vt = VT_EMPTY;2 U z0 H) C) R* |2 d+ O! C( k8 K
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// Call IDispatch::Invoke() " u3 d- Z1 T; F" o, y$ n* S( Y; y, `6 I F! H2 d
hr = m_pDisp->Invoke(0 D# k8 v) d+ I% c1 F
requestID, ! ^6 i; C/ E2 L" F; e' V0 J IID_NULL, 8 C* `8 R6 X! @$ v- s$ f LOCALE_SYSTEM_DEFAULT,5 G( I; s9 H# Y
DISPATCH_METHOD, ! y# T. `) H7 ? &dp2,% @4 ^; o$ `9 O
&var, : n7 d' C9 W3 [! g" U6 b4 m* G &ei, * ^% j1 a, S5 h) J1 u6 u &uiErr);7 n6 I& _- I9 G+ a2 i
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SysFreeString(topicStr);3 R# e- g0 @( g/ } O
SysFreeString(itemStr);; ~) h# |+ I! D
请问该程序是获得extend里面的哪个值? " s( x0 p- m+ x9 w/ _( a0 X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????