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:1 D/ e3 ]' [1 G4 M
Name = (WCHAR *) L"Poke";$ g6 L+ \. Z n* Z1 y0 [: B p
. m1 o7 M( U) G* G% s9 K& W hr = m_pDisp->GetIDsOfNames (( e, H" |* @2 r& v& |; y
IID_NULL, // reserved 8 D# L9 |, S& P7 ~! |7 f &Name, // Array of names to get IDs for $ q. ]! Y2 \* c5 e- g 1, // # of names in the array8 P0 G6 ^2 l0 B( j
LOCALE_SYSTEM_DEFAULT, // System locale; p* g# `6 o% g: q) |
&pokeID); // Array of IDs to fill on output ) s- O( \8 i8 _ ; L+ e E* o& e$ e, N0 C
if (hr) 6 J: ^. |- |) b+ V: s4 p { 3 _: J- p0 L( \; y2 T MessageBox ("Get Poke Unsuccessful");6 o5 n0 H, G; P5 |5 m" \
return;# E2 @& ~, m; N
} % S- x* i3 ^) r# j. T 8 a8 N4 ? Z2 P6 [. `) t/**************************传递数据给extend**************************************/5 N1 [( h/ k7 }. U; ? n- m9 O
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ e; g; V! b w$ A+ c0 I
# |! M& E! K+ G* v" g valueStr = SysAllocString((WCHAR *) L"1232"); 9 {* e' T5 O8 Q0 E& s VariantInit(&pokeVariant[0]); 7 g. q* K; V' ]; Y( ?# l
pokeVariant[0].vt = VT_BSTR; 8 p2 f! f* t6 j1 Q+ w T pokeVariant[0].bstrVal = valueStr; 8 X* X" k5 u$ I T# `3 \ & Z' G" U" @7 S# A0 I3 `. S- p& I/ p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. j1 X7 \& |. s& T& Z
VariantInit(&pokeVariant[1]); 8 F! W; n+ V* ?! p
pokeVariant[1].vt = VT_BSTR; ' R/ H- M! F- o) `! ]9 B( j5 O pokeVariant[1].bstrVal = itemStr; + L% k0 ]6 J2 j' _+ S0 q : n* M- c2 `% Y* B' y5 r* n topicStr = SysAllocString((WCHAR *) L"system"); 6 {/ K3 \! U: N9 V VariantInit(&pokeVariant[2]); 1 V. v) |$ E& z, {5 ^9 {' X
pokeVariant[2].vt = VT_BSTR; 7 Q: n& a$ p: v4 f8 a, F$ R! B pokeVariant[2].bstrVal = topicStr;. G- ~5 D+ s! B6 _7 i. `! C
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// Set the DISPPARAMS structure that holds the variant.0 r7 C! B: J9 y
. x r* g6 G$ K; d- c dp.rgvarg = pokeVariant;# _; o/ K7 E! f; x% _. P1 D1 J/ j
dp.cArgs = 3;) T: B( y }: u7 e
dp.rgdispidNamedArgs = NULL; 7 F& Q* H5 ]: f# z- t( s dp.cNamedArgs = 0; ! M- q( a- u) u( e ) l, _) [) v4 G4 `' p// Call IDispatch::Invoke() ) l4 r6 F# ?/ O8 U' A- d& @3 ~ W! F1 K6 p9 H r
hr = m_pDisp->Invoke(% F/ ~/ [- W' y- s0 k( F1 Y
pokeID,( g( M% H3 Z7 Q' k/ c) b
IID_NULL,- Z6 a3 Q& Y0 x; I
LOCALE_SYSTEM_DEFAULT,& I7 H1 b+ G/ W1 l
DISPATCH_METHOD,5 {9 q5 B9 v) e: o) Q D) e
&dp, ) ?9 k) J! o# z3 p. T& I& C8 Z NULL, 2 |& M# ~6 @7 ^) _8 e2 c &ei,1 t6 D0 e8 a: W" f' \! B
&uiErr); * d* _7 K0 J" o9 k2 u+ z% n* {# O7 F: D8 P( N9 _1 v6 y* U( `
SysFreeString(topicStr);/ Q& j0 w( k9 x% d, W. n
SysFreeString(itemStr); ( i0 I; b& z3 |' K# d q SysFreeString(valueStr);' p1 o* u: F6 W1 D+ r" k) M, U3 `
% f6 N1 n1 T* ~) S& s+ y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 s9 B! W; Q$ q) X8 }) M
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???? % e0 B1 ]- ?" i [. D: [ X" u* I, B4 r7 H( R( ~4 X* O0 L
+ P- z. z' i: l2.这是request的程序 ; w; p) ?- ~: E6 z' E5 B, D& Q0 e// Request a value from Extend ) C2 l* J/ h! V3 Q% e: j//8 \3 l, b$ ]" p* Q
// Initialize the variant that will hold the BSTR. Set the variant's $ h5 {& b9 N4 A2 m4 N// type flag to indicate the fact that this variant holds a BSTR. Place the/ C/ l6 t& L5 f: A, @
// BSTR into the variant structure.8 {' _ J/ i+ G4 b
* a0 {. z' b* Q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 T6 F2 O7 r# Q/ x+ G/ x- Q) \
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ o4 R, Z: |8 I9 o* q VariantInit(&requestVariant[0]); ' H, N2 M) V. q$ ~6 ?: [& a F F requestVariant[0].vt = VT_BSTR;. ^1 x7 j* ^& F. H7 ~# t4 B' ^
requestVariant[0].bstrVal = itemStr; * q: h" L$ R/ v" r: C3 O - ^. v% V. h d& V, N* [8 r topicStr = SysAllocString((WCHAR *) L"system");+ F5 ]+ v% ?/ y7 l4 H8 [: C: e
VariantInit(&requestVariant[1]); # v) a* o: W( p requestVariant[1].vt = VT_BSTR;) z. @+ Z h2 d- t) B3 q
requestVariant[1].bstrVal = topicStr; R+ w7 {; \- L5 s+ g& a* ?& T1 F2 j: l; `2 o2 I4 S
// Set the DISPPARAMS structure that holds the variant.$ @4 g2 _. g7 A2 n& `
' g' p1 T- ?; i- I' t! k' o" F# t: x dp2.rgvarg = requestVariant;; L& S& N9 l4 n2 R7 t+ c2 H
dp2.cArgs = 2; 7 J7 J1 a0 W/ Y) i8 @ dp2.rgdispidNamedArgs = NULL; ( `% b- D2 w1 X" T! ^% h dp2.cNamedArgs = 0;" |! B6 v" k1 k" Y* L4 ]
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var.vt = VT_EMPTY; # {2 j0 U$ b# `( p l2 |# `5 C/ D% P# Z' z6 I// Call IDispatch::Invoke() # M3 | a& K% u& }4 L9 v5 U+ X9 u8 ~4 J - e' x6 \+ A: o! f3 F# E6 R hr = m_pDisp->Invoke( . j# @2 r( N! L- @ Q) R requestID,- W% V3 \# T. s$ t+ c3 ]
IID_NULL,& t: i6 Y6 ?1 p! ^8 o2 `
LOCALE_SYSTEM_DEFAULT, ) v- f x' Y: E; D/ z) N DISPATCH_METHOD,3 v9 ]* T. E2 n
&dp2, 6 z0 J- } A9 E &var,7 f- H8 U4 w/ X0 |, w& Z: u
&ei,: b$ H( [# c' a) O8 m+ s
&uiErr);0 ?3 z# Q U- J# @" M1 o- p
9 X* n8 ?! @2 b$ ]; Y+ c
SysFreeString(topicStr); * T' J: [9 F/ [7 P% ?3 u SysFreeString(itemStr);0 ~- e$ T- V F I: P0 C" V7 q
请问该程序是获得extend里面的哪个值?" r" T: \' b8 M; ^$ R, w! N8 G! z
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????