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:6 H. Y4 t9 Y1 P' h" S' r/ J
Name = (WCHAR *) L"Poke"; 7 ]& Q2 e- r/ p6 ]: f4 X 0 S( d( U( v& G% g' o m
hr = m_pDisp->GetIDsOfNames ( 4 w& \9 |1 q7 V, D" _, I IID_NULL, // reserved 3 q0 H4 a. O; k R$ u/ G0 X &Name, // Array of names to get IDs for5 q/ R. b, O* Z i. k& m
1, // # of names in the array $ X$ W% o4 G9 C' f4 P6 z7 o4 y8 u- j LOCALE_SYSTEM_DEFAULT, // System locale % I, b6 f# \/ f) \. B) S &pokeID); // Array of IDs to fill on output 6 y. q- b: r* f0 n+ t) J / R$ h( U, ?# N3 S
if (hr) % E H& s$ `9 }+ D% v# \4 q1 a& [ {( u% D, I7 j+ ^' E2 @& t: G
MessageBox ("Get Poke Unsuccessful"); ; \* m6 w4 G7 {# P# A! J, ? return; 6 X6 J+ r: E$ F( a }4 W ?/ |4 N2 o* v) s2 b! q
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/**************************传递数据给extend**************************************/9 D0 h1 }2 u- I/ f# w) D( M0 _2 K
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 f J- |1 a A- q6 ]
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valueStr = SysAllocString((WCHAR *) L"1232"); ( }4 ~2 y& F( \4 ^ VariantInit(&pokeVariant[0]); # w8 g9 @( B9 s4 C& W3 X% ] pokeVariant[0].vt = VT_BSTR; / x N; C( U( y+ s+ Y) A" ` pokeVariant[0].bstrVal = valueStr; 1 w, `" d6 v; r2 s: {, D5 ~" \; e0 R- L+ }# F# J; K$ l
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* H7 g/ x1 ]1 ^# p
VariantInit(&pokeVariant[1]); 6 u* w+ J# {4 x% u6 B' x pokeVariant[1].vt = VT_BSTR;( ?! {& Y5 M) a$ c
pokeVariant[1].bstrVal = itemStr;8 F6 {# s4 K# O
, s; U: V G' T topicStr = SysAllocString((WCHAR *) L"system");% ?9 }8 p& z: w$ k( O, v1 [/ T
VariantInit(&pokeVariant[2]); $ t2 p1 K7 a8 q9 B0 ?" p pokeVariant[2].vt = VT_BSTR;8 l7 i& K7 L: y1 I- z
pokeVariant[2].bstrVal = topicStr; 2 m o! v" c1 m( A0 n 4 m4 a: H4 p& T9 B8 ~0 [' n// Set the DISPPARAMS structure that holds the variant.4 s! H1 j1 G) C2 R8 N
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dp.rgvarg = pokeVariant; " w8 s5 w( i& T/ e* X; T" Q dp.cArgs = 3;& j$ G& j& J' g, W: U9 ?
dp.rgdispidNamedArgs = NULL; 2 P2 @# p4 X/ D dp.cNamedArgs = 0;# c; l% L+ {( j ?# g1 e$ M
( n! l" n7 ^, I& ~, L# K// Call IDispatch::Invoke() ( y$ b* _- P& K% n ! o1 p6 G; _7 B b5 N: S- ` hr = m_pDisp->Invoke(* \# X) I1 [5 t; |$ ^. t
pokeID, 7 J. V/ Q4 P9 \$ U8 _7 ~+ O, ` IID_NULL,) h! R6 [# R: v/ X e* w( s
LOCALE_SYSTEM_DEFAULT,: O% x/ B% v2 s0 |* O
DISPATCH_METHOD,: t* s0 ^% b& R$ e' V: }
&dp,+ O8 N! G( |( R7 m j
NULL,: v t w+ Z+ e2 h$ B
&ei, 7 w+ _( @4 P$ H, Z' E &uiErr);* X9 b }0 t% e" B0 p- D& L
( m4 ` K: t5 ^* i8 ? SysFreeString(topicStr); 4 m7 w$ \8 ]: U SysFreeString(itemStr);/ j3 @( b, o. \6 ] u
SysFreeString(valueStr);7 W V# j# |, e$ l3 u6 j& ?. k7 Q
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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??? / q! d$ w$ s! s3 W3 B+ _) a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????+ M! s# [) U4 N4 d$ ~4 J
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2.这是request的程序 1 Z" M& Y0 a. s& u) M- F5 U. \// Request a value from Extend8 l6 l7 ]( N4 X; N
// 8 X! g+ U* Z0 ?9 T5 z// Initialize the variant that will hold the BSTR. Set the variant's% r! j* O6 O) q3 g% h
// type flag to indicate the fact that this variant holds a BSTR. Place the6 S N* B! k8 n t9 @
// BSTR into the variant structure.5 V( j: Y% O B6 E& a3 |
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ W" ?9 t: x1 p2 A) m6 W
: e) `$ K4 g0 O9 W2 I6 e itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); X; l& s8 m5 q" d
VariantInit(&requestVariant[0]); ! U- a& d% ]) [ requestVariant[0].vt = VT_BSTR;, l. O0 \- w) p; B) ^- e
requestVariant[0].bstrVal = itemStr;- E% ~4 ^/ c% d0 M$ ?% b
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topicStr = SysAllocString((WCHAR *) L"system");: \5 D' q, X" }
VariantInit(&requestVariant[1]); & c% V1 c/ ~3 d% n" \5 _( q1 Y requestVariant[1].vt = VT_BSTR;$ d6 k8 c- l* E. z1 B* e0 b* W
requestVariant[1].bstrVal = topicStr; $ L& s$ @5 \7 \5 h% C& ?6 E, R7 f! W( f. W% x0 @
// Set the DISPPARAMS structure that holds the variant. & E' Z* y3 L9 g, T1 ` 7 E' }/ `# P( k- p v dp2.rgvarg = requestVariant; / O" k, c; S( o/ L) n dp2.cArgs = 2; ! R' D- _9 I2 i% u! q$ d" V) K2 ^( T dp2.rgdispidNamedArgs = NULL; ' e4 T4 |$ V9 ]# M9 x' t0 e, ~ dp2.cNamedArgs = 0;* `. Z8 n* R; S( S" H, v
& X$ m1 {& E, ` var.vt = VT_EMPTY; 6 D( z, A' `$ `4 C* B/ K ' ~+ b+ p/ Q* Y) N- _$ q6 F8 m// Call IDispatch::Invoke() + b1 k& o! B! q5 l: g: U $ Y. J0 k H, ?+ y2 A1 j7 P hr = m_pDisp->Invoke(2 {, J( P( n3 X4 z+ [
requestID, % V( f' s# h4 i IID_NULL,$ J" O, H: Y" V( P
LOCALE_SYSTEM_DEFAULT, * s5 k- e+ a& K# a. Z) A v- v DISPATCH_METHOD,9 Q& D5 N1 X8 ^4 F& Q/ g
&dp2, 7 D9 |9 y( Q8 X &var,$ L$ M9 H! @5 L4 _& i
&ei,: h3 x4 u" U. B) Q; M
&uiErr);$ E1 j; Z' ?' [' r/ v