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: " Y# O6 J# b( |$ R) v3 LName = (WCHAR *) L"Poke"; $ u m5 y; K B4 f4 s' a . H# A/ |2 Y7 P' j" ]7 g
hr = m_pDisp->GetIDsOfNames (5 k0 L- E/ M @$ _* j
IID_NULL, // reserved" {9 a( U# D& @7 l
&Name, // Array of names to get IDs for9 u' T4 R8 z; T. ^1 S; n
1, // # of names in the array4 T8 z" `* K, e; w- }
LOCALE_SYSTEM_DEFAULT, // System locale 4 ~$ v" f/ v) B9 p$ S% Q8 z! Y* T &pokeID); // Array of IDs to fill on output ( e$ [/ o/ p! k r 1 u: {9 w9 ]& A( E- m if (hr) 7 u! ~5 }& c5 C { 3 t( u* Y4 s) j6 K MessageBox ("Get Poke Unsuccessful");" D# b3 H) |# |
return;2 ]% a4 T0 s5 O' y% H/ `; b
}! g. |3 Y, i* Z& g- J
7 i' T5 O. K* z! H0 f/**************************传递数据给extend**************************************/ 5 f% L" l7 N( T/ r pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* X- v* N! t& U/ n
) z; V0 z$ d3 E0 E valueStr = SysAllocString((WCHAR *) L"1232");: g4 b) e0 `7 {& k: r
VariantInit(&pokeVariant[0]); ! U( X/ z/ b0 J1 ]$ g: P+ r pokeVariant[0].vt = VT_BSTR;) R# v8 S/ T& }! Q3 g
pokeVariant[0].bstrVal = valueStr;& `, i* S) o- w/ y" f2 G& e
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ r0 {9 n: i' k( U: Y% n
VariantInit(&pokeVariant[1]); 7 ]+ {2 s3 E6 [4 j! P" p% z
pokeVariant[1].vt = VT_BSTR;. _+ a( H) N2 w% K; I
pokeVariant[1].bstrVal = itemStr;% N* v. t( J8 u- R% L
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topicStr = SysAllocString((WCHAR *) L"system");$ v4 g. e$ N( `2 K5 u6 A3 P
VariantInit(&pokeVariant[2]); 0 n( p% M S& A% `3 S7 T- u5 O
pokeVariant[2].vt = VT_BSTR;& ^$ D% j% _! d- ?
pokeVariant[2].bstrVal = topicStr;, R- C3 `% z9 |; ^6 e
% U# U6 x, H) ^: i
// Set the DISPPARAMS structure that holds the variant. ' l; d& U! Q6 k8 E; s$ D! r/ d& }7 i& s6 M( a1 d
dp.rgvarg = pokeVariant; 1 V3 p0 P. d, O z3 x7 S N/ n2 Y dp.cArgs = 3;4 \9 Y4 W' Q8 ~! {
dp.rgdispidNamedArgs = NULL;& [* a& {6 H" Y" n& C y
dp.cNamedArgs = 0; l3 u( P2 _6 P3 o5 [5 {: F
3 M& z5 e- e! n0 B* m( m
// Call IDispatch::Invoke() 0 H2 o: h; }4 J9 |( L- c \6 g0 e! _* x# T9 U7 v
hr = m_pDisp->Invoke(' ^% }' Z C) {
pokeID, ! }) ]1 g1 W1 U2 [, P' |5 V IID_NULL, + ~0 M# p9 A; m% ]0 Q+ i/ t LOCALE_SYSTEM_DEFAULT,6 ^8 f% m. h! c" r3 F1 z
DISPATCH_METHOD,3 D9 p% g3 v2 I! _4 h2 y
&dp, @7 W& ?/ S# [, @) m
NULL,( J9 G" F/ F" K, H6 {) D& N! l
&ei, 1 W; g) [' }( A! e7 m0 f) G &uiErr); ) w( F$ W+ ^1 i& y7 M' _ k9 d+ R0 g/ U: U
SysFreeString(topicStr);; ~; P% C3 R& A; ^& G
SysFreeString(itemStr);: ?+ y% z# O% g
SysFreeString(valueStr);! m3 A! ^3 s) n3 M1 I
7 V3 M+ a) ~" R6 W! e! S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 S9 _9 O, V3 D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???? a7 n4 S2 N/ F. Y9 ?4 W; [ $ ] P( h# a- q* F: ~* G* u, H B3 z' A( d$ Q! Z/ C& D" p
2.这是request的程序 ( ^. d/ c5 F6 N& K, I, U// Request a value from Extend) n* J8 H7 q+ p4 o
//. p( h7 W9 o7 U0 l2 Q
// Initialize the variant that will hold the BSTR. Set the variant's 8 w1 g I. {' E4 |" X' ^- Y. H// type flag to indicate the fact that this variant holds a BSTR. Place the6 u; M$ ]: Y* c9 y" ^ o: Y/ `9 X
// BSTR into the variant structure.. x- Y/ M9 f3 F: w) o4 e