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: f$ D6 h' A8 {3 W
Name = (WCHAR *) L"Poke"; 0 Y* E W7 \/ A0 W & N. [! o5 _$ K1 o& W
hr = m_pDisp->GetIDsOfNames ( 1 [% f- Z _& z IID_NULL, // reserved* O& w: u; j! V3 C1 c: R
&Name, // Array of names to get IDs for " B, h3 \. z& c. Q& a0 O 1, // # of names in the array2 {1 n7 Z, w! @5 R" s
LOCALE_SYSTEM_DEFAULT, // System locale. V/ g( U1 x& @+ O3 ?0 S
&pokeID); // Array of IDs to fill on output. O9 Z/ O5 Q5 h* G6 } F# M* t& q
& d3 a8 Y# z. }5 l8 W6 T& G, e if (hr) 7 b7 ?7 P: |$ M2 w( R1 N0 D {' ^0 a g1 f; L. Y1 ~' W
MessageBox ("Get Poke Unsuccessful");6 o. o1 \" _/ o/ j7 u
return; S/ m+ n# T u) W4 c } W/ v* Q0 a C1 K: }; E
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/**************************传递数据给extend**************************************/+ ?$ F" B3 t4 K
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);! i" c! p! v, i$ V* o' O) _; {! R$ b
6 G+ T6 l6 h$ ]) z0 A$ F valueStr = SysAllocString((WCHAR *) L"1232");8 Z1 u" F! B$ |9 N! ~
VariantInit(&pokeVariant[0]); : I2 I5 ~6 {; u0 W) L8 v4 O: S pokeVariant[0].vt = VT_BSTR;* \" m, `* x% @( K, U U/ h
pokeVariant[0].bstrVal = valueStr; + A) g0 U) T; r& \$ k 9 j( C9 [- N) i* @ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , }) I) j* I- h) I VariantInit(&pokeVariant[1]); 9 A+ [. f9 ^5 X. @3 P- a) I6 C
pokeVariant[1].vt = VT_BSTR; 0 l/ ]! J) _2 u3 ^/ E& T pokeVariant[1].bstrVal = itemStr;5 v* n+ X& V6 Y! _- y9 b
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topicStr = SysAllocString((WCHAR *) L"system");+ n) `. a2 R' ~3 b! f0 L
VariantInit(&pokeVariant[2]); 0 J" m4 C# z3 e* f) p0 L
pokeVariant[2].vt = VT_BSTR; # \; ~. v0 x7 ^/ C; x \5 K pokeVariant[2].bstrVal = topicStr;2 a) v# {6 q/ D! q# c# ^5 A
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// Set the DISPPARAMS structure that holds the variant.) @ H' k8 A. R& ^
- |. |2 b8 P- _+ O4 Q dp.rgvarg = pokeVariant;, I% X0 X, [3 [% @+ K& i5 R
dp.cArgs = 3; 1 N; i8 y' \1 s, \ dp.rgdispidNamedArgs = NULL; G$ B. O' p7 w5 T
dp.cNamedArgs = 0; ; D% a; ~- `. |, c; B3 s" @3 T% o. o' D/ s/ Q4 G; l
// Call IDispatch::Invoke()/ `, `" V8 y: I# m' o" y
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hr = m_pDisp->Invoke(% p f5 t3 t4 f2 U$ ~1 o
pokeID, ! g' l7 ~" i0 A' j5 E7 w IID_NULL,' x R; m W+ c0 e
LOCALE_SYSTEM_DEFAULT,% p; [$ g) m3 I+ C& i% c4 R8 m
DISPATCH_METHOD,0 i/ y& J! s+ T. G
&dp,$ v( K) o/ u) k0 u& ]
NULL,* X" i/ k# ]: L7 Z
&ei, 9 v7 k6 B' {5 g0 ]+ E# G &uiErr);' o. z7 o8 ~3 y' v8 n
, @$ ^" \+ J8 H3 c, g SysFreeString(topicStr);5 P, w/ Y+ H) L' U
SysFreeString(itemStr);9 F( c7 Z8 i9 y: ~* w
SysFreeString(valueStr); ) d2 x( G5 ]$ s8 T# N( D k4 a
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???* z5 t* {9 C: Q, H0 ~( 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???? - p6 p2 e2 O! O w5 h2 F- f; A- G3 x. N2 r
) J& _$ [& X$ k9 k/ c6 r0 S2.这是request的程序 ( q* w2 `9 Z% K j! ]// Request a value from Extend & Y7 P% I' g2 x" p9 Z7 g* {3 R2 F//$ S! p: M* C- @6 Y
// Initialize the variant that will hold the BSTR. Set the variant's / F/ [- B* P' b// type flag to indicate the fact that this variant holds a BSTR. Place the3 _' |3 C Q* N/ A0 R3 T- X0 G7 m
// BSTR into the variant structure.& }7 u0 [* i4 p
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); & @0 b9 [- a: p/ B) \: x9 Q & a" v" G/ {6 D3 t% G1 k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" p$ g/ u5 C/ B7 h9 L
VariantInit(&requestVariant[0]); ' A0 A5 o1 q; W: v
requestVariant[0].vt = VT_BSTR;3 z( W O: l7 H+ f6 R+ M
requestVariant[0].bstrVal = itemStr; 0 L. h' \' y) B. u [0 G8 b, s6 ?5 J5 j) W$ D" l9 T
topicStr = SysAllocString((WCHAR *) L"system"); . d3 H s6 u9 K0 m a+ l! A VariantInit(&requestVariant[1]); P g2 G6 K! y4 ~. x requestVariant[1].vt = VT_BSTR; ) a4 E/ `* O" e# M" F2 q requestVariant[1].bstrVal = topicStr; # `% b% X- f2 M& r7 ?) J: N- d0 _
// Set the DISPPARAMS structure that holds the variant.) g! V/ M5 b# {* e) t
# z9 J% l0 x g3 _9 v4 I! r2 @9 ? dp2.rgvarg = requestVariant; ( A6 D/ Y; }( O0 _+ Y dp2.cArgs = 2;8 X* B0 t5 E/ N
dp2.rgdispidNamedArgs = NULL; # v! o8 ~! T% z. o( s- A2 P& z) H dp2.cNamedArgs = 0; 9 p# z+ N1 R* K0 V R9 d! a W. g) c j7 r( \& v) \' p; G1 F$ p
var.vt = VT_EMPTY; , Z! @6 D& a7 X" Q y" a6 A( n q: B* Y7 k: A: ^2 `/ u
// Call IDispatch::Invoke() - x5 K& {, F3 h: O9 ~8 A0 x6 g ' ?* J9 }7 @, y' U6 T- R7 f hr = m_pDisp->Invoke( ' a2 S+ f1 B9 P w* O) ?6 J requestID, # C/ u0 x( e! \+ t& [ IID_NULL, % u% W3 U$ h/ m5 k1 l LOCALE_SYSTEM_DEFAULT, + i# B8 p9 I! A0 H7 i DISPATCH_METHOD, m ]$ ~6 x2 F Y3 f
&dp2, ( p) V1 K. B; H5 _ &var,; p. ^0 G$ u# \" l; u
&ei, 0 r0 W! v# _/ u' Q6 _4 P8 m &uiErr); 0 w! Q: ^/ ]9 j. F' w$ B- f. a+ o5 I F4 E
SysFreeString(topicStr);' G. l- w( `9 o
SysFreeString(itemStr);! \3 y* i3 v. C9 M! k/ p
请问该程序是获得extend里面的哪个值?4 H( t3 X. l5 B
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????