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:7 j, _; @0 h5 K+ q
Name = (WCHAR *) L"Poke";4 U9 Q% U5 g+ u6 X$ B% w5 D
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hr = m_pDisp->GetIDsOfNames (. N( P& ]) ~' M: l* w' Q' c9 o+ ?
IID_NULL, // reserved& h* S4 O6 s' M" Q" W+ |. t8 Q. v
&Name, // Array of names to get IDs for 4 M' c9 V6 | }* A 1, // # of names in the array/ t0 V. j9 N5 }5 D9 j: G
LOCALE_SYSTEM_DEFAULT, // System locale ) u' H: X( r3 l &pokeID); // Array of IDs to fill on output ' L, L" h7 v; ~* X. n , J! _% R% u- i. S
if (hr) . u- }$ r+ I1 q, T, g {" ~6 O" r9 T" u) G4 _
MessageBox ("Get Poke Unsuccessful"); 1 p' s! c2 @6 N! S' C return; 8 z. q5 a$ z& y' m" ^6 o }# V5 J0 I7 W7 ` A
- f# f' ?8 k+ j1 o- g/**************************传递数据给extend**************************************/$ A/ b. G# j p& i. N ^, s5 M
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); # ]* E" N3 [/ ?, s% d2 g- a( { , ~: F2 L7 x6 b0 t0 R- d, f
valueStr = SysAllocString((WCHAR *) L"1232");1 w9 c$ Y( S% k, y' l( c
VariantInit(&pokeVariant[0]); + k" ^' Z' M7 S+ n6 x9 M$ Z( K
pokeVariant[0].vt = VT_BSTR;, h! T9 S- c$ B( o9 s
pokeVariant[0].bstrVal = valueStr;# X4 m' u7 F1 s' I& Q5 _ g
% B$ k: V1 z3 p) N2 L" {( L# l% g itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 V1 L; ~) R+ o' T* d6 i8 ?7 Z VariantInit(&pokeVariant[1]); " u. d5 i* W; f/ l
pokeVariant[1].vt = VT_BSTR; + _: @4 s% f4 y( F pokeVariant[1].bstrVal = itemStr; 8 I/ a+ P1 z! E( U: j3 S/ w7 Y ! [2 Q+ L5 `3 d topicStr = SysAllocString((WCHAR *) L"system"); 9 C* b- z- g5 ~5 ^. Q. i+ }' z VariantInit(&pokeVariant[2]); " }$ p: R3 g' U0 ]* i0 o' U
pokeVariant[2].vt = VT_BSTR; " E! p* l) \9 V% r) U$ |2 E pokeVariant[2].bstrVal = topicStr;' W% f, C+ r( b
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// Set the DISPPARAMS structure that holds the variant.: ] H s) ~' X3 |9 [' N
- s! u4 F2 N6 m$ x; K. s2 H dp.rgvarg = pokeVariant;* u. n% Z( Q p- L4 E& j$ {
dp.cArgs = 3;2 V ]* A Y9 P
dp.rgdispidNamedArgs = NULL; ' l# p3 i8 H4 c) \ t, ^, g dp.cNamedArgs = 0;( m I9 |1 F( d( F% ^" B
- c) c g* F5 r3 U8 r, h// Call IDispatch::Invoke()2 {# S, w$ x2 O2 p+ V; d! V
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hr = m_pDisp->Invoke( 6 G. J4 A( G$ |; r. j9 B pokeID,8 B2 ?+ g0 @$ x" x$ p
IID_NULL, ; l1 O; `1 V- I. c1 [ LOCALE_SYSTEM_DEFAULT,7 d) J. D# l: k* U8 b
DISPATCH_METHOD, 1 Y% P- d1 j) S$ L5 E+ u &dp, / e: a4 i ~0 v& C0 D NULL, n$ O6 w, [" T; I' W. i1 S &ei, , r g! M8 H6 X7 _3 C' C' ^$ N# L &uiErr); 3 s- x9 j: P6 t9 ~" Q! E$ V. {( P & g8 g2 u3 ]+ j, @( u/ z, n+ h SysFreeString(topicStr);( t! _- L# U" ]7 _' j0 C; O
SysFreeString(itemStr); ' ?+ R6 F, ]1 e SysFreeString(valueStr); ; B2 v7 }3 W: g( S2 L0 G4 J( y, k/ p p$ f& {* M- I8 y$ t2 A# f
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???6 w# {& a, P! ^4 f7 h
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???? 8 b h7 S8 }- l0 z) w # u3 h+ b4 ^! B 4 A8 U* C* Y+ h* i! }" {% e2.这是request的程序 7 V3 R( q' H# W' e8 K4 Z// Request a value from Extend - ~; l/ Z1 X! w& n9 e// + A1 j+ M2 z' p0 A& d// Initialize the variant that will hold the BSTR. Set the variant's 5 e. e* k7 G- h; ]4 d z// type flag to indicate the fact that this variant holds a BSTR. Place the( h( Z, s; ~3 Q6 `" w5 b
// BSTR into the variant structure.7 m, x8 T& _ U+ Z& v
9 }/ @/ G3 x. ^; F requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 s2 }9 ]% K* t8 R
- U7 Z6 M( C- |+ U9 H7 {+ Z' { itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- O: N- q) ^# R2 _5 ]/ e! n
VariantInit(&requestVariant[0]); 6 j' Q3 D6 y9 J2 i- U+ ^9 S$ [6 { requestVariant[0].vt = VT_BSTR;8 ~" g- L n, {- E& R, d3 c* i
requestVariant[0].bstrVal = itemStr;7 e* G l* }1 j
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topicStr = SysAllocString((WCHAR *) L"system");* L- k6 d1 O( _% r3 T
VariantInit(&requestVariant[1]); 2 L$ w2 y7 u) c% [9 v5 v requestVariant[1].vt = VT_BSTR; 7 ?3 j( n0 Z' C3 `; T" w requestVariant[1].bstrVal = topicStr; 5 K% h$ ?; D$ H+ x , z) @# z; C" U k# t) X. c# d// Set the DISPPARAMS structure that holds the variant., N* w/ B8 Z1 V' A4 I3 @
! J! H' v$ u# U% H. T* {; ^" }" |- g/ h dp2.rgvarg = requestVariant;; o7 Q' w m+ E( k% j9 d8 a
dp2.cArgs = 2;! G4 y. n; w5 y
dp2.rgdispidNamedArgs = NULL; ) q8 }. S* Z8 B" | dp2.cNamedArgs = 0; 6 l( x3 C& _4 }$ T& ]/ j! i8 G) [: n
var.vt = VT_EMPTY;, J. G& m% i5 S+ L, w% k2 E
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// Call IDispatch::Invoke(): \, |) s: Q+ x) N |
5 Z! o) I; ~) k' y1 d3 | hr = m_pDisp->Invoke( 1 f( l: b! P3 N1 q8 Y requestID, ) M) G, F6 D3 Q2 _, R, X8 I IID_NULL,3 N s( j0 R2 R+ h# J0 l1 l
LOCALE_SYSTEM_DEFAULT, ( t1 Q- K- d+ e3 f* o DISPATCH_METHOD,8 e6 k. o0 d9 E) J3 l2 l* `3 d2 G
&dp2,& P5 f3 c$ c7 S8 d
&var, 4 P& N) {) K& r$ E1 c &ei, S! S* O v" j% h; w
&uiErr);7 k: U; _2 I3 l$ u/ L" o, h