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：9 |# [( T) c" N. l9 q/ b: F
Name = (WCHAR *) L"Poke"; ( B9 S/ q7 Z$ w4 h; ~ , ?( N( p9 F4 k" ?2 e
hr = m_pDisp->GetIDsOfNames (; _$ y, @& _* a" e
IID_NULL, // reserved + \ K2 r1 t+ J7 ? &Name, // Array of names to get IDs for: x* T1 i7 V; }$ r" ^
1, // # of names in the array r$ L" R( G. A% b' y O LOCALE_SYSTEM_DEFAULT, // System locale - g# q- \8 g- L: B+ X &pokeID); // Array of IDs to fill on output) w; e, {, }9 K0 y3 D
, q2 a+ Q7 r7 q1 A! T8 [" N7 v if (hr)+ V0 a' B1 Y1 S3 A/ v
{ - f' J3 t" L. g9 h) s MessageBox ("Get Poke Unsuccessful"); * F }" q+ Y9 ~ return;8 b7 k% a! R' w1 x$ l( Z
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/**************************传递数据给extend**************************************// d2 A* }( b# R m, z, m8 J' C0 `
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 y% ^ ?. e% P" ]( U6 ^% }
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valueStr = SysAllocString((WCHAR *) L"1232"); 5 H/ a) S- A+ t7 y) D7 J VariantInit(&pokeVariant[0]); 0 S0 h. j4 S- @7 S) s+ ^, l* x" z pokeVariant[0].vt = VT_BSTR; 7 V5 r) B' v: P! \: w pokeVariant[0].bstrVal = valueStr; 5 u) I: l0 l% m3 O( z9 d; J2 U, W" _7 m3 @! q4 J- Y
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 J& T" d: e" M: y" F: Q) w VariantInit(&pokeVariant[1]); , c' R t v6 @9 F- w pokeVariant[1].vt = VT_BSTR; : `1 [. b; H$ F, g" _ pokeVariant[1].bstrVal = itemStr;# m) k; K3 V4 ?. I/ p- I
4 s2 ?5 O8 [0 E4 x topicStr = SysAllocString((WCHAR *) L"system"); & @$ C$ m2 t- M3 C( `9 H8 L( v VariantInit(&pokeVariant[2]); 4 R6 [/ l6 `; w! l, L3 B
pokeVariant[2].vt = VT_BSTR;6 d" k" a5 ?& }
pokeVariant[2].bstrVal = topicStr; " L0 N+ ?7 v" {7 A8 G" i9 [6 X+ C5 t5 j1 _) b1 o
// Set the DISPPARAMS structure that holds the variant.; ?$ Z* K2 |) u8 u2 _ \
: c2 s: G0 L0 h* e# I3 n2 y$ c0 L dp.rgvarg = pokeVariant; $ ^7 p! u$ H# @) C5 x dp.cArgs = 3; ' z) B6 g! @7 X6 ] dp.rgdispidNamedArgs = NULL;1 }1 J4 \- j8 m$ o7 a& Z. e u
dp.cNamedArgs = 0; $ J4 C8 I( R" j6 S! w3 `* l! h. ]! E* ^ A: P/ T# s2 `/ G
// Call IDispatch::Invoke() 2 U* p7 X4 d# s$ X2 F; r( ^/ F) w8 {/ X2 |9 L0 ?3 w
hr = m_pDisp->Invoke( 1 O# J. x: b$ y: ?+ D0 ?' I" x pokeID, 0 ?( g+ N5 U8 v9 d1 d IID_NULL,, T. r" h9 f2 P5 ^8 C' m
LOCALE_SYSTEM_DEFAULT, , _! @0 N+ V+ b" d2 A DISPATCH_METHOD, 0 j2 K/ o$ H2 j" G' m2 i &dp,4 _) `* U$ ~) i4 _3 v
NULL, % i5 S& p: C# z" z+ ?% C( y &ei, : }: L) [4 g* m2 i4 n9 R0 E1 E/ x &uiErr);0 l+ O3 s2 q( d. Y' B# H
/ G+ n! U% [. ?& N' x: q SysFreeString(topicStr); % e6 C! i1 w ^; ` SysFreeString(itemStr);5 k7 h9 k; T4 p6 k
SysFreeString(valueStr); 2 ]( e3 F% i3 v$ L ; [" z3 p! d( c0 `5 ?8 u$ _6 |) J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？？？; q9 ~! s; _2 k' E
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？？？？. Q/ b9 Q3 t' U& c1 {& d3 D
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2.这是request的程序! G4 Z r; e% ]: `& K
// Request a value from Extend * E; H: f0 l9 N) b$ y3 A//6 N; {9 \: P1 S' {0 h6 E, G
// Initialize the variant that will hold the BSTR. Set the variant's 7 K6 _3 J/ T( }// type flag to indicate the fact that this variant holds a BSTR. Place the " G# z9 P: e2 I4 J/ d// BSTR into the variant structure.* `* r: l! f# [; |8 D
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ) {! r- a$ t5 X& V2 f" S& N" W) i 8 B U; \' M+ x7 W1 G$ W
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 K/ k" P7 I: n* C M3 d VariantInit(&requestVariant[0]); % v: X: M: D6 U6 \% s
requestVariant[0].vt = VT_BSTR; 8 G- |6 O# Q6 P* \% R9 K7 W5 H requestVariant[0].bstrVal = itemStr; : M E9 R9 R1 f( S5 L" O+ h' i4 @) Y- P1 j. c, s8 ^
topicStr = SysAllocString((WCHAR *) L"system");" {+ _0 A& ^8 v! Z1 g7 `1 r
VariantInit(&requestVariant[1]); 8 _ r' V3 |3 o$ t n+ s" e% a8 v requestVariant[1].vt = VT_BSTR; 4 q2 b+ {+ L, T; a; o3 k5 f5 E/ q requestVariant[1].bstrVal = topicStr;1 e2 F4 X5 Y3 ^# u% _3 C. E
% _& `+ @9 M2 f) A9 M" e; v6 ], {
// Set the DISPPARAMS structure that holds the variant.& p4 S' K% w3 z2 c/ h1 }+ Q( I
% ~5 m) o$ c; c# [5 ^4 V- g
dp2.rgvarg = requestVariant;3 X+ B/ y; v- {/ \& L. X8 v) F* [) E
dp2.cArgs = 2; $ |, z, @; X+ y& V2 e/ n dp2.rgdispidNamedArgs = NULL; + B' G2 ^0 l2 f dp2.cNamedArgs = 0; 9 x; Q6 Z' [! p; \4 g% `) L" Q! g4 @& o+ I" m5 v
var.vt = VT_EMPTY;/ f# t3 N! ]! ^, e
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// Call IDispatch::Invoke()2 J- A" |0 B' G: V
. p0 {" b2 _1 M z/ y hr = m_pDisp->Invoke(( i/ A* }% a& D0 m. r0 H
requestID,& O$ {$ ]3 Y3 c% q ^
IID_NULL, 5 A" h1 ^& v5 ?0 r LOCALE_SYSTEM_DEFAULT,4 D! {3 e* C! {+ n
DISPATCH_METHOD,( g3 p* S& ^- M6 B" J
&dp2,4 ]& I' i& V( i
&var,% g0 o) n0 Q" C
&ei, 2 l8 g% C V1 M &uiErr);' J# W; C2 x( o
发表于 2008-11-25 19:37:03
