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:% h/ y# t3 I7 P, `0 F
Name = (WCHAR *) L"Poke"; 8 l* I9 B- m: s" X 3 ~4 C5 T0 `" r; x% J/ C0 u7 e3 f
hr = m_pDisp->GetIDsOfNames ( ( @8 ?+ O6 c' t/ W2 D IID_NULL, // reserved0 g S7 l- u+ T8 h" W! ]
&Name, // Array of names to get IDs for0 C1 J0 |$ K& B# H
1, // # of names in the array8 \0 P( O- K" n/ [' W
LOCALE_SYSTEM_DEFAULT, // System locale ( K( z' [8 |( R8 A$ w9 _* N x &pokeID); // Array of IDs to fill on output; c: J* B6 K3 Y* K# K
, p4 D. b3 Y O2 O4 J- J% [ I W5 [ if (hr) 9 h6 Q. |* C/ u+ f L) M { / R/ f! ^! C& o5 Y+ S' l# ^( Q MessageBox ("Get Poke Unsuccessful");4 K3 v, z0 M% @9 g5 H" l
return;) V6 B- |4 C( g: _5 B+ {
} 8 R8 \. }- }; D3 p6 w ; J+ ^, v, H' r1 @/**************************传递数据给extend**************************************/ : ]' _# y. p* D1 S1 i5 e3 x3 K pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' @* A0 v' I. X: I; S
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valueStr = SysAllocString((WCHAR *) L"1232"); ( ^# p: q, `2 ^4 ~ VariantInit(&pokeVariant[0]); - G0 G4 G$ p4 l7 }! Y pokeVariant[0].vt = VT_BSTR;3 Y- [% G; @* ?; a1 c8 H0 u
pokeVariant[0].bstrVal = valueStr; 2 O2 A$ {2 j7 w( | V4 f. m) A+ S- B7 E9 e% s; L
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" j* T0 {1 |( E2 u' C& V- k
VariantInit(&pokeVariant[1]); ( \0 r) W- c- {1 U
pokeVariant[1].vt = VT_BSTR;7 U; g q' \+ q# q: x8 l
pokeVariant[1].bstrVal = itemStr;; ?$ u) C) V+ w- v5 F/ T: e
% A) b, W6 J( F7 Z& I2 Y topicStr = SysAllocString((WCHAR *) L"system");; k T+ |9 V6 V) B' |: c; L
VariantInit(&pokeVariant[2]); , O4 g# ?6 u7 R$ o0 W3 u7 ]# U pokeVariant[2].vt = VT_BSTR;* @$ C- O; s3 N4 p- o9 q
pokeVariant[2].bstrVal = topicStr;# @. K+ Q3 a& [
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// Set the DISPPARAMS structure that holds the variant. 3 p/ L& h' @0 I, X s1 ]. W . p$ v0 z8 I C& Z, z dp.rgvarg = pokeVariant; # X5 @8 v$ M @ dp.cArgs = 3;: M9 N# U N5 L6 n
dp.rgdispidNamedArgs = NULL; 5 e. \, d1 l( K+ x dp.cNamedArgs = 0; 5 L& e1 T0 _+ [: d5 b& j( p5 E ; c; |% P: r4 n9 C// Call IDispatch::Invoke() * @, w6 a* k/ ~1 h1 C3 L ! }$ v/ B8 p3 j4 t+ K3 Q hr = m_pDisp->Invoke(5 _; N+ B H" `9 y7 C$ P
pokeID,# g$ Y% P3 u" ~$ j' s; N
IID_NULL,/ y+ f# X* y- [0 S4 x8 T: a
LOCALE_SYSTEM_DEFAULT,: Y2 U) d( q6 G9 L# K) v5 {7 V2 C+ V
DISPATCH_METHOD,5 a9 A/ D! G; h( Y; @1 n: l, G
&dp,$ d- H) w4 v, z8 O; p! C+ M7 i
NULL, - L6 V, S0 u* d/ Q! Z9 v$ ?( t0 W &ei,4 i# L. H* S5 I- | z
&uiErr);" v, e8 U$ g0 V; m* e+ \
" G, n7 e* x. J6 W5 Y5 V
SysFreeString(topicStr);2 I5 X6 N' J- i- W0 a8 f5 m
SysFreeString(itemStr); $ s* X! c. o' ~/ K SysFreeString(valueStr);4 a) A/ s! t( h. J2 a d
2 h3 l1 Y3 `5 b; V# _
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??? " U( c: I1 C7 A# u0 `- @% 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???? # d; A" h; R' N2 w! o9 X# K- G+ {6 g. f2 ^8 t9 l
! M* x6 ~. ~3 e% T2.这是request的程序 ' T) H; M( f& K" h5 T// Request a value from Extend " `6 m8 }$ |7 _8 ~// 2 I, P- ^# r/ O( R) G+ J0 ^2 ~5 N w// Initialize the variant that will hold the BSTR. Set the variant's- M. L% f7 E# [" Y) y8 U/ A3 U
// type flag to indicate the fact that this variant holds a BSTR. Place the& @7 N, R2 A; d: S c
// BSTR into the variant structure.! ^ `; K; Q- {& Z+ G
- [. ?, \) T& c, o! X a requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: c: ?7 l, H# _& x; ~! T
2 Z% R* H# t2 Q! Q3 l: c
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 S2 C+ `+ B5 R! \ VariantInit(&requestVariant[0]); 7 J2 l, w$ g0 q" Z( D requestVariant[0].vt = VT_BSTR; 6 H( z" `- l/ M4 B* r6 _ requestVariant[0].bstrVal = itemStr;7 \# Z3 G5 g/ e2 ~* i1 R
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topicStr = SysAllocString((WCHAR *) L"system"); ; U9 T2 S9 z. [ VariantInit(&requestVariant[1]); - @0 r7 G. l* Y" e! w8 Y requestVariant[1].vt = VT_BSTR; 6 G6 x) b7 [, c$ P% q7 z& q2 Z requestVariant[1].bstrVal = topicStr;$ i) x) f: T7 b* m
& b8 C; ]7 }8 k# o9 |0 I0 ]6 W) b// Set the DISPPARAMS structure that holds the variant. 4 n& s$ | g: a- `- Y) S7 T1 q* Y+ d, i m2 I. ?5 r P. Y
dp2.rgvarg = requestVariant;" o; S) w8 j) N: P1 w- D) y; x: L
dp2.cArgs = 2;2 n" }% H& H4 M- T$ A5 }
dp2.rgdispidNamedArgs = NULL;+ E% J0 q5 r1 V# C) R/ K" g
dp2.cNamedArgs = 0;+ Z& @# x, H# ~- X
2 C! }. u5 S# q
var.vt = VT_EMPTY; : O$ J; i3 ]7 |# t- O 6 [; c9 q" S U. O// Call IDispatch::Invoke() 0 l% I$ R: j! q2 A% R3 ?/ l' ~9 x
hr = m_pDisp->Invoke(7 s1 v1 S: S, x: }* }
requestID,4 r- @% g' K' ]5 Q) ^" A) g
IID_NULL, 4 ^! s" i% m5 r/ d4 f LOCALE_SYSTEM_DEFAULT, 9 Q1 w/ r+ o( }$ Y5 x7 V DISPATCH_METHOD,) W6 H+ t/ ~2 X/ G& S- L
&dp2,, K. b0 e3 d0 m2 K) n
&var,6 |0 Z& w9 q( N2 H6 ]6 L$ z: F& b8 W
&ei,5 q: G. `+ k0 V3 T, M2 @
&uiErr); , @+ m7 \6 Z+ X) m6 p$ b; b( d" b2 F
SysFreeString(topicStr); 0 }$ u0 t! u4 a) v* q SysFreeString(itemStr);2 U" `# b# o8 w" Z) }% E
请问该程序是获得extend里面的哪个值? 3 f6 h6 O, R$ \+ x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????