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: - c- s# r9 f+ b0 `Name = (WCHAR *) L"Poke"; 1 S: Q H3 i- x3 F$ J 3 ^" @( i1 `0 o
hr = m_pDisp->GetIDsOfNames () }( j) ~9 u# n+ D, K
IID_NULL, // reserved 2 S8 E1 ~& @" \" q. e9 T- u2 M# I &Name, // Array of names to get IDs for1 C7 @4 G9 b% L
1, // # of names in the array* o- k8 J8 Y, b0 _ w( u9 W
LOCALE_SYSTEM_DEFAULT, // System locale* b5 w- K# R' `# |! q( T
&pokeID); // Array of IDs to fill on output - b% Y$ h( ^3 R J ( p! k* E' K5 Z# E3 b
if (hr)1 p+ X- k4 O% {
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MessageBox ("Get Poke Unsuccessful"); % R+ N% P& F" H1 G, A+ M return;5 |5 R: o, z, A s4 r
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/**************************传递数据给extend**************************************/+ ]. F) ^$ r. e4 E" r8 Z0 g
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);5 _& ^/ Y+ [& x" o# j! v1 J, N2 V
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valueStr = SysAllocString((WCHAR *) L"1232"); 3 ~8 t& Q+ C( A3 w/ b3 T6 { VariantInit(&pokeVariant[0]); & J& V3 v C) F4 f/ N6 u% I: { pokeVariant[0].vt = VT_BSTR; " M6 L/ p2 S1 v8 C7 _, B4 O0 I pokeVariant[0].bstrVal = valueStr; ' w- U3 Q* W$ d ; l4 u' A# j& ?6 R& J8 } itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) H: W, s+ B) n7 \; s/ q1 o VariantInit(&pokeVariant[1]); 3 M4 q/ o8 ]9 N
pokeVariant[1].vt = VT_BSTR;0 W! w* m# e7 R* t
pokeVariant[1].bstrVal = itemStr; 4 M# E) A, J$ o & F, a6 G$ I8 ~; w4 B/ @ topicStr = SysAllocString((WCHAR *) L"system");* m9 x2 w" } R" C( a
VariantInit(&pokeVariant[2]); 3 l( e* e' L) ?/ F; P pokeVariant[2].vt = VT_BSTR; , u) ~4 t& E7 s pokeVariant[2].bstrVal = topicStr;2 }7 {2 _8 [% h7 j& s; A, g
0 G% C& v" J9 L: z5 ?9 I// Set the DISPPARAMS structure that holds the variant. & ~4 X4 @! I& i6 s; n ; V( B0 o* M5 d: K6 l dp.rgvarg = pokeVariant; 1 `7 d! `$ ]) s* r% F dp.cArgs = 3; ' p* f7 H: @- ?* j8 m3 Y dp.rgdispidNamedArgs = NULL;3 J1 b; z( K5 u4 K) l" r
dp.cNamedArgs = 0; : c; N. R$ K$ M% L" K0 x2 H( C* W ) H" L# N7 B J1 d$ H// Call IDispatch::Invoke()8 A5 t# y3 z' T1 c& s
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hr = m_pDisp->Invoke(( x- |& r( ^) P
pokeID, % U& W8 }5 d# w" k: @ IID_NULL, f. k2 `% L% O# q$ J# Z# P ` LOCALE_SYSTEM_DEFAULT, 1 |5 i. ]: J) \ DISPATCH_METHOD, " L! F5 O. p/ N9 U1 X &dp,0 T+ ]# \. ]' g1 p
NULL, 7 X- s- N2 g0 _( X! ?4 f/ F &ei, k; Q& M4 Z4 d& U) g: i
&uiErr);8 H, C" k+ b6 t1 ~4 l
" E$ h$ ]% [8 V8 R. _+ i SysFreeString(topicStr); / B9 [' K; Y; }0 r% ~9 C) C SysFreeString(itemStr);6 N; d4 I2 i) q' [7 ]
SysFreeString(valueStr);4 D; ~+ p3 O; ~3 e! B
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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??? 8 U1 M8 E' f9 g. Z: G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/ b' d5 y; J/ U3 F s: a6 U) S
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2.这是request的程序 4 \% o0 ?. m5 D8 f5 l// Request a value from Extend; a% C$ G% }' n2 O3 U/ b. ~! L
//% s0 O4 d' N! X4 q) ^/ k
// Initialize the variant that will hold the BSTR. Set the variant's 6 U# s" Z {. ?% y% D& i- ^4 D5 R// type flag to indicate the fact that this variant holds a BSTR. Place the7 W% ^# Y4 M0 n; H
// BSTR into the variant structure.: R% I5 B& }1 G. Y
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' e0 T. R7 B9 U$ | ! `# r% m9 }9 u
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( `; X" t' G# x# s
VariantInit(&requestVariant[0]); 4 d H- Q- U( S8 b' d
requestVariant[0].vt = VT_BSTR;& Q+ R" |; J" f x
requestVariant[0].bstrVal = itemStr;. M0 V$ P p6 C. j n0 @( m
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topicStr = SysAllocString((WCHAR *) L"system");# \3 W! W4 V; [! m- S4 h9 p* m7 V$ @
VariantInit(&requestVariant[1]); 7 q( s. P2 b) t, \+ k7 x( { requestVariant[1].vt = VT_BSTR; 6 \5 F1 z1 Q+ k0 ^6 o requestVariant[1].bstrVal = topicStr;, f0 X1 n, q L* g m& l2 i
- K% Y' U( ~- ]' T" N; F// Set the DISPPARAMS structure that holds the variant." h1 {6 h) L2 F2 w
l- m2 Z3 j) U" r# i4 |" i dp2.rgvarg = requestVariant;" k$ T. r% t! J: x
dp2.cArgs = 2; ! _/ N* d5 V! O1 @5 O8 h dp2.rgdispidNamedArgs = NULL; 8 O9 ~2 t" |8 i b ` dp2.cNamedArgs = 0;) J/ \+ {" I# ~7 `
T/ x6 a) n" T- ?3 ]" L. L# z var.vt = VT_EMPTY;" e0 u+ r+ _! \2 u: ?/ B9 u
$ A; o7 S$ q, f& R// Call IDispatch::Invoke()& W0 Q' I- Y- n* }
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hr = m_pDisp->Invoke(4 h& t! Z* J' o7 {, K6 e9 ^" j! T) m
requestID,4 ^; J7 d7 e$ }+ p/ D- N/ ^' s; o% r
IID_NULL, % s3 ?8 z% f' {" K/ c( e LOCALE_SYSTEM_DEFAULT,5 Z- d# T. L- @. w/ K, p! \% e
DISPATCH_METHOD,5 |& T) l; A. E# n
&dp2, 4 s5 h- ^& C' J' S% t. ~0 s/ f1 B &var, " ]/ a2 @% Q" m0 U &ei,% @/ o+ `- w" y5 r& M8 {
&uiErr); ' C; Y& u2 L$ o' p/ X! |4 v8 _" V3 T
SysFreeString(topicStr);' ]5 z, {) o* |1 a
SysFreeString(itemStr);% y" q0 `8 b" j* S
请问该程序是获得extend里面的哪个值? 1 R& Z7 R0 t$ u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????