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5仿真币
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 }9 L x& o4 s% O6 k! `, r
Name = (WCHAR *) L"Poke";
7 u3 K. R& E7 \8 A / b0 P; y, m" ~; S k
hr = m_pDisp->GetIDsOfNames (
: }1 r7 A2 C5 r- y# o0 M" `+ a IID_NULL, // reserved
9 C4 D& `) y# \0 t9 s+ q( D &Name, // Array of names to get IDs for
6 c+ b# p+ ~6 z2 `( [1 h0 b 1, // # of names in the array& j' }9 V' |( i
LOCALE_SYSTEM_DEFAULT, // System locale6 w+ c: b% _! \8 i% N8 ~1 n) U
&pokeID); // Array of IDs to fill on output
$ y" q8 S, C4 D% s
$ o9 m* \2 i9 t% I4 k0 Z% |% n" [, a if (hr)
7 q8 `/ S* ?' i: ? {: w. V& Z. }+ i$ `, ~, s. U, e* P
MessageBox ("Get Poke Unsuccessful");
3 ^# [$ k8 @$ h return;
# h3 b3 z! W f( f/ d1 k }9 f: A- j9 a* @' O. {5 C! L+ }/ l
9 W# E9 `+ _" h
/**************************传递数据给extend**************************************/
6 ]8 D8 h+ {3 {, F3 a9 S. J pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
3 S% A: e4 j. }; a 8 @4 M6 ^& W- }. L' O
valueStr = SysAllocString((WCHAR *) L"1232");5 C5 x6 Q. r0 J1 f
VariantInit(&pokeVariant[0]);
# i+ _* X' n, o( ~ R pokeVariant[0].vt = VT_BSTR;
; Z$ R8 ~2 w6 R; W+ ` pokeVariant[0].bstrVal = valueStr; x- I/ B6 ^2 w5 R3 ^( U
- U; h& ^9 M1 }% K1 b
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) P1 }4 \; a4 V9 q0 k, q4 j
VariantInit(&pokeVariant[1]); " d& _" x0 K# |$ S+ h. c! \6 u
pokeVariant[1].vt = VT_BSTR;
7 L9 v# A9 y. o) M pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");. Z2 s, t; y! D
VariantInit(&pokeVariant[2]); ' x0 M" e1 S% B
pokeVariant[2].vt = VT_BSTR;
+ ?( { f& \" ~" v' r- k pokeVariant[2].bstrVal = topicStr;0 g- g' ~4 q0 o5 T7 x; @& z
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// Set the DISPPARAMS structure that holds the variant.
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, V1 L+ ] V* D( n$ {3 p dp.rgvarg = pokeVariant;
. M Z8 h) L- P7 K9 r- N dp.cArgs = 3;
/ ?- ~& M8 l: P dp.rgdispidNamedArgs = NULL;
; p. s5 v7 b7 k) P+ Y& U# k5 M dp.cNamedArgs = 0;; i9 ]7 l, \! ?# }3 ]' u! u3 W6 b
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(4 _- M A+ h/ F6 m' y2 ]9 g5 _
pokeID,
. v' E" X$ f& }$ k1 m9 p8 A IID_NULL,
8 K4 ]7 Z) r. _( f1 o* o9 \6 r LOCALE_SYSTEM_DEFAULT,
* a+ H6 _4 Q& h/ N. { DISPATCH_METHOD,
, o. X6 B- o; E( ]$ g G6 T( ` &dp,( v$ N, Y6 z% T n4 w4 X! Y6 J
NULL,
. w1 J z& H7 m3 R &ei,
" y/ C2 v; ?! B' ^ &uiErr);
) {: `( a8 @/ k; y' H0 S- W" m v! a
1 x% ]6 G" `& ~( t3 f1 G SysFreeString(topicStr);
. c+ n$ c) @; t SysFreeString(itemStr);
9 }2 k; ^; L: A2 j3 q& e) X% f SysFreeString(valueStr);, ^& i8 A/ [ Y5 k. Y5 c
# Q$ v a+ a- V4 m$ g
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？？？
: g' Z0 T: B8 }$ _& Y* a9 y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？？？？; P$ K/ S: w* p; b1 j+ J
# Q; x. [ E1 C' M& T
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2.这是request的程序
* K! u) v" ?- }! d+ K! n// Request a value from Extend2 N) n8 }7 o0 g1 k A
//
* c: w2 R" j. u2 N// Initialize the variant that will hold the BSTR. Set the variant's
- x1 l5 ?9 x& W* f4 g4 E// type flag to indicate the fact that this variant holds a BSTR. Place the
5 p2 I$ C! F* i! P3 N6 Y// BSTR into the variant structure./ O Z G7 f l* U% q0 H
/ `) F; [3 t' z: d0 N" p( y requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
/ z' q) Y+ y1 a% O
, Y% ?2 F3 X. Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, |% t3 Y! b0 D, i# k: o: K
VariantInit(&requestVariant[0]); ( u% g2 X8 t0 m3 N3 h
requestVariant[0].vt = VT_BSTR;
9 A4 T( }6 L9 \2 v$ s requestVariant[0].bstrVal = itemStr;+ j, a9 B7 A! B5 X4 A" P6 n7 L+ r: N
+ e& B: T; b2 T1 v! M topicStr = SysAllocString((WCHAR *) L"system");
. j* O# c V9 q, j( {2 z VariantInit(&requestVariant[1]);
4 D9 K# g2 p- M: S requestVariant[1].vt = VT_BSTR;# C8 K& K4 K5 Z
requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
+ B3 Y( w0 D. \3 ]
5 ~) R- z+ G9 ?# D+ @1 J7 k dp2.rgvarg = requestVariant;
4 v! L1 Y' `, e8 _& t' a" _' b dp2.cArgs = 2;8 H% g7 U% |# N. t/ N
dp2.rgdispidNamedArgs = NULL;
* l0 Y- k; H1 r* B9 U% h W+ `+ ~ dp2.cNamedArgs = 0;* f. B( P1 D- w7 N: d. U
: Q) B# y& U- `, T. } var.vt = VT_EMPTY;
# S( m/ ^# K1 e8 i, Z; d; B
# S( j/ O& J q3 l// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(! @! A1 O" P' G. n: N k- S& P
requestID,5 {3 A& P' ~' @" Y; ~" Z
IID_NULL,
0 r1 ]8 s1 m, y LOCALE_SYSTEM_DEFAULT,
4 G$ c9 w' \7 ? DISPATCH_METHOD,
, K/ d% I7 E8 w* D5 L8 l4 n &dp2,
7 V7 h4 ^6 }, V' m- [8 Q &var,) a3 c- B$ T8 b4 E7 n
&ei,5 Y" v: r7 b6 d4 v
&uiErr);
7 \# j$ ~( d: v
' W) q$ K1 P( m A! F1 g, }2 p SysFreeString(topicStr);0 f1 B4 r7 E4 \ B' B) G/ `
SysFreeString(itemStr);; b m4 ~1 b8 f3 m
请问该程序是获得extend里面的哪个值？
6 d0 R8 R3 y: J' U, X+ w, l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？？？？ |
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发表于 2008-11-25 19:37:03
