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: $ j! v z+ o, R+ qName = (WCHAR *) L"Poke"; # }1 h L8 a; M6 Q6 Z + ?# K2 h4 z' n8 b1 \' Y
hr = m_pDisp->GetIDsOfNames ( 3 q4 }$ K1 f2 \$ ]4 g IID_NULL, // reserved2 @( u1 Y2 O! A2 x3 v5 ]2 n7 D8 q" w
&Name, // Array of names to get IDs for4 D0 W3 P8 D3 I/ L) G; O! n
1, // # of names in the array5 {" |- P( H, Q! `6 x
LOCALE_SYSTEM_DEFAULT, // System locale. y G v- O9 T M/ `' e# ~
&pokeID); // Array of IDs to fill on output 6 r8 X( S- O/ q7 t+ Y ! Q) I$ b$ z/ W( h( r7 L2 j( T if (hr) ' n2 w) R; i( ?" f { : F" P1 o# l% V# [1 }: { MessageBox ("Get Poke Unsuccessful");9 I! m" R- }1 F: Z7 v7 @
return;$ A5 i+ o7 q! [' C8 R! x6 M7 e% H4 V
} 8 ]( l: ^( f# j- d 3 k9 X& d- R- ~2 L* A/**************************传递数据给extend**************************************/ / t; K7 ]4 E T4 `- ? pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); $ S) R. j. @& p: |1 R* [ ) l0 ?* f8 R) ~1 \* W; ^, R% h valueStr = SysAllocString((WCHAR *) L"1232"); 8 b$ O/ o! e$ O1 B& d8 w7 N VariantInit(&pokeVariant[0]); % Q- d! ], h" l- ^1 y. k4 n
pokeVariant[0].vt = VT_BSTR;' @( B$ d3 _& `4 n4 T9 Z
pokeVariant[0].bstrVal = valueStr; 3 ~8 {7 H' K n+ G3 E+ j) ]( @9 ]: M) P6 e; }% X* p3 r$ _
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 P/ _& J/ \' d6 [& q( [
VariantInit(&pokeVariant[1]); " q, Q" \. R: }+ m# o! R2 } pokeVariant[1].vt = VT_BSTR;) F4 t' [$ z8 c& ] b# b
pokeVariant[1].bstrVal = itemStr;, \% w/ l% Q( }7 X
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topicStr = SysAllocString((WCHAR *) L"system"); , Y% S* ]* Q; e: P2 {6 E! V5 P VariantInit(&pokeVariant[2]); 3 ~% C0 k, H# \5 ^# f pokeVariant[2].vt = VT_BSTR; $ M2 w$ n; E9 q pokeVariant[2].bstrVal = topicStr; 2 O; z* r% J+ S0 J- @: [/ p. S6 ~+ _8 ^3 ?% l: `* t! a- I+ n6 i9 q
// Set the DISPPARAMS structure that holds the variant. * b! z2 t0 e8 O1 w, J7 n+ J& D& E* N4 S2 q3 @6 Y
dp.rgvarg = pokeVariant;! |* ^0 M2 u X S+ W8 v% c
dp.cArgs = 3;+ X8 D( F) U" j4 O5 ~# z" t, \
dp.rgdispidNamedArgs = NULL;; i1 O* ?2 ^9 l: @0 q2 m
dp.cNamedArgs = 0;# j @4 T9 @* L, @2 r
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// Call IDispatch::Invoke()( l% J4 e8 D7 x% y3 a
" u! ?( G) S0 O/ f hr = m_pDisp->Invoke(! [) L1 g/ H7 f a- ?1 c, a
pokeID, # `3 j0 K/ w8 q# V: | IID_NULL, $ Z! p8 A1 S+ ]7 Q% o LOCALE_SYSTEM_DEFAULT, . o% |" n, `$ _- E/ _$ y* y/ h DISPATCH_METHOD,0 i7 y" e, U0 I' l$ m1 Q/ h# u
&dp, $ a( }( `7 Y! K5 I& _" D" c! u, d NULL, # e$ T1 x& f: I% G &ei, 2 q- x3 B: `8 R6 w& ]7 t" O &uiErr);0 C' j* k& R- E9 N' B: z7 m
1 m3 y* ~5 J: l x3 Q9 g' r3 Y, C* K" @- U SysFreeString(topicStr);* x' u- ~: P8 j6 p# ]4 E. K4 g
SysFreeString(itemStr);( k6 ^5 B' X. f/ s$ N' n
SysFreeString(valueStr);8 V: ^: z% T* G# s
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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??? & Y) @: G8 k. I l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????) `% t& e4 }1 o& @( V. Q8 y( |
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2.这是request的程序' {( C6 Z- c2 _# ~4 d
// Request a value from Extend- I- }1 S5 s4 r' l1 d
// - \0 p/ ^ E6 I3 {2 w// Initialize the variant that will hold the BSTR. Set the variant's# K0 b# M. c: ~2 Q* K* g" p/ x6 s
// type flag to indicate the fact that this variant holds a BSTR. Place the % J2 Z" s/ k" @$ u C. f// BSTR into the variant structure.. d6 w! T5 ]* m# o% A% p- k
; i$ t( ^# ^& O C+ z" J requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 `" b$ q: h/ Q- ^ 8 H/ U/ c \9 U y) G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ k+ F: L2 u1 p VariantInit(&requestVariant[0]); & P6 x4 O: X( Y
requestVariant[0].vt = VT_BSTR;& w) D+ a, H2 @7 g8 N
requestVariant[0].bstrVal = itemStr;8 |# {) e7 E; l5 y3 j) O0 i3 C