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: # f4 M% a, } b0 n6 x- LName = (WCHAR *) L"Poke";! W8 M& t+ e1 x8 H- u8 z" W; Q
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hr = m_pDisp->GetIDsOfNames (* _ X9 E6 B: A* Y4 Q7 |
IID_NULL, // reserved 2 Q( S, G1 ?% L0 x$ r2 R. w &Name, // Array of names to get IDs for : l4 z5 Q4 P, N8 | 1, // # of names in the array( k. J X4 N& _: W' u' R0 h. W
LOCALE_SYSTEM_DEFAULT, // System locale ) J* q+ ^, \9 B* b8 [0 b3 O; ^ &pokeID); // Array of IDs to fill on output . P1 u8 ~ D8 Z $ N! ^/ Q3 y' l/ e if (hr)8 ~! r, ~/ O P# {
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MessageBox ("Get Poke Unsuccessful"); 7 F- R8 O8 e* q$ n return;7 Z, [+ m" F& V
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! [- o" L; `. r! f9 E* D t4 A* M8 Z/**************************传递数据给extend**************************************/ 5 r" ~9 w. c+ b( T# O pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ; ~, r+ K1 v0 c0 A1 V$ | + y# T6 M; h: q+ l valueStr = SysAllocString((WCHAR *) L"1232"); 7 F, n# ?% W# {/ o+ l VariantInit(&pokeVariant[0]); 6 j3 h8 E, c, p" R v
pokeVariant[0].vt = VT_BSTR; 0 Z B9 |, h$ b+ O3 G8 e. X. N pokeVariant[0].bstrVal = valueStr;& [7 I: v" D! O9 J* a
6 j2 W. }* q' }1 C8 G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 a# m# \, h; f3 m# Q* \ V( h, Z VariantInit(&pokeVariant[1]); 1 }' T" B- _6 L pokeVariant[1].vt = VT_BSTR; + f- o2 I0 a, m' v w pokeVariant[1].bstrVal = itemStr;1 A, F8 R% D7 l" X1 f' J% A$ m$ l6 [
/ A' ~/ |+ b* L6 m9 n4 A6 V G q topicStr = SysAllocString((WCHAR *) L"system");. ?+ x& ?+ a: g' V3 I2 s
VariantInit(&pokeVariant[2]); / S" ^% C; j, g4 [
pokeVariant[2].vt = VT_BSTR; 3 G1 ?% _* A5 v( c4 t& E, D pokeVariant[2].bstrVal = topicStr; ; _# m( L0 T# Y) {2 |: k8 S! I9 H U# ~8 f2 u: f
// Set the DISPPARAMS structure that holds the variant.( Y6 L3 J0 G" i# V& |1 P' n
, S' F: c) b$ F, o% r dp.rgvarg = pokeVariant; ! @8 C. Y: |! x/ |6 |+ h dp.cArgs = 3; 8 B3 c* s7 \3 R4 }0 z dp.rgdispidNamedArgs = NULL; 6 ~. b2 h! x/ T dp.cNamedArgs = 0;; \; Q# ]2 m) F/ [# `+ _& p( g$ X
9 J! h/ s8 G# t* V* W2 D( L. p// Call IDispatch::Invoke() $ F/ l+ P( ~1 A7 w x+ l9 R( B& [: Q E, A
hr = m_pDisp->Invoke( * g2 H& A% W3 T% W% O, m pokeID,3 k# l* \: T6 r- \" W
IID_NULL,: ?2 m; n! \2 n; S3 Q0 A
LOCALE_SYSTEM_DEFAULT,* W* Z! X7 V7 {! T: P$ G
DISPATCH_METHOD, ; g/ y4 [, L& G- x8 L &dp,2 C" M# C7 N( U
NULL, " V: n+ m' K n# Y7 p6 O6 C. b; y: p &ei,! e$ U$ d% E4 d. H& f* U( Z8 }7 b
&uiErr); 4 W* i& r' @+ k+ C% ]0 J+ ^' w. ?8 c. n7 ]
SysFreeString(topicStr);* Z: d/ a# j+ w! R& w4 k
SysFreeString(itemStr);8 d& D+ g4 O8 w0 ~7 ~$ x# h
SysFreeString(valueStr); # N9 |. b9 @+ a# h+ S 2 _ y) t# p7 X" k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??? ~$ h' H& H4 [( x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????4 ^- {& R h" t
( U$ y: i- u4 Y7 O, D# I4 H : V1 _: n' a0 L G* K% [2.这是request的程序 4 W, E2 l+ S/ i& M' {5 c// Request a value from Extend 7 D, S: B& {# Z( z' ~$ H// c. {' E( T& p. g' ^// Initialize the variant that will hold the BSTR. Set the variant's3 r4 [# F' r$ |+ c4 {1 z6 D( s' j8 p. {
// type flag to indicate the fact that this variant holds a BSTR. Place the 8 l, r; d: x0 Y7 T// BSTR into the variant structure.& s& _- i- j) U
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 7 }. J8 \0 }. h 0 G, `: U) q+ v$ Y% b$ B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 S: {- | o' `; g VariantInit(&requestVariant[0]); 5 P, }( i% n# j( p" J, K2 H% }
requestVariant[0].vt = VT_BSTR; 5 s9 s2 B+ k; ] requestVariant[0].bstrVal = itemStr;( c Q6 ?5 I4 O6 Y& [; p/ H; A