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: % Q6 M: U: D$ @/ A7 U. ]; LName = (WCHAR *) L"Poke"; + U* v# v& s8 P1 O5 u/ O+ g9 {* b 0 |1 o7 |0 Z2 U4 ^& ~. s hr = m_pDisp->GetIDsOfNames ( " @7 } w" o; @- a IID_NULL, // reserved % s/ z! `' B" o9 b &Name, // Array of names to get IDs for0 i/ y0 n" d. u, k- y8 |0 t& |
1, // # of names in the array r% U) m4 N9 | LOCALE_SYSTEM_DEFAULT, // System locale6 R! `. C$ S/ c! x! R0 ^
&pokeID); // Array of IDs to fill on output$ e( X- j. I4 K$ [
9 G4 t$ \& y, U$ A6 Y if (hr) M( n( A: f6 ~: O4 n0 S) L. e$ R' A {! r4 Y: T" l$ X* R) {% g
MessageBox ("Get Poke Unsuccessful"); 3 J& N( S2 d$ d+ G! K2 @( L return;. D' f) C# N. J0 K! c" u
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/**************************传递数据给extend**************************************/+ F; L) i) _5 w0 }
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);! k" V1 ~! L* T- M1 D& @
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valueStr = SysAllocString((WCHAR *) L"1232");7 W3 G1 d7 P$ a w8 S8 d+ P, O
VariantInit(&pokeVariant[0]); C" I5 B+ `. J2 D
pokeVariant[0].vt = VT_BSTR;7 r1 K: n9 W9 G3 {- W
pokeVariant[0].bstrVal = valueStr;. p h$ Z1 l1 p9 T% i
4 S9 s8 n% Y+ u& Z" [' O itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 U; F p" _( P2 X3 B: ` VariantInit(&pokeVariant[1]); 5 S7 T1 e) {. m/ y6 n, w, f; @5 f pokeVariant[1].vt = VT_BSTR;) z% A, O9 K, N" K& D
pokeVariant[1].bstrVal = itemStr; + j* }7 k2 I( b m2 n6 N* t4 w, ^0 E b; h0 L
topicStr = SysAllocString((WCHAR *) L"system");# ^- I3 J( `$ ]; |. }& B
VariantInit(&pokeVariant[2]); 5 v" V4 g& M: i* Q J6 x
pokeVariant[2].vt = VT_BSTR; # u" H. g( L2 J& Z! j: D/ Z0 y: c pokeVariant[2].bstrVal = topicStr; . V* F; q! I9 F& b; H' j; F/ I; E/ W4 x( X, P2 ]7 x8 P
// Set the DISPPARAMS structure that holds the variant.5 |) y3 G& z4 c0 t
' B3 R! {3 C! r8 ~" [* v$ }* B dp.rgvarg = pokeVariant; $ N/ U `( o% z; f8 X dp.cArgs = 3;- _" h) j& t, c! @( a' H4 D
dp.rgdispidNamedArgs = NULL;+ h* H1 Y, i+ o
dp.cNamedArgs = 0; 2 s N5 c# U1 a, Q# l$ H1 r & @% _+ c* `- e$ E2 a( s5 c- q// Call IDispatch::Invoke(); X; @, p) S8 Z& L i
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hr = m_pDisp->Invoke( - X4 l; d, |& J7 {( U: ^" R pokeID, . [& l9 Q0 ?$ P' a: N- c IID_NULL, ; `, r5 ]4 L6 m LOCALE_SYSTEM_DEFAULT,4 U% m/ D' g2 v
DISPATCH_METHOD, ' C* i, y6 j2 A. F' v. c/ R- ` &dp,( Z H# \% B" N2 g9 L% w" y
NULL,( H* N5 j' Y# b' f9 H
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&uiErr); * a. m2 M6 u1 C* F% {- _: o / l4 ?9 F! x2 n$ V% y* ^ SysFreeString(topicStr);% c, w+ k/ _' j8 N% W, K5 J
SysFreeString(itemStr);; V5 G6 h: t" J
SysFreeString(valueStr);$ @, t) c& ^1 y0 ~8 s
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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??? 5 X2 k4 y: N, r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???? 9 m! x9 J s! d& o& s% [/ Y2 b/ K! P( X
+ G) ], `/ P$ G2.这是request的程序 1 c, K) \" e% @// Request a value from Extend $ v$ K9 \% P& {( K8 G& Y% L/ B// - X0 y; r4 V6 U( @" A6 _+ e// Initialize the variant that will hold the BSTR. Set the variant's " y h0 s: f d. H, U" ^- x// type flag to indicate the fact that this variant holds a BSTR. Place the( B: C1 L( g( z7 r5 |, L! C% \
// BSTR into the variant structure.+ @- ~# `# q: Q6 E# h/ T