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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：3 K& |1 e7 e3 V0 i
Name = (WCHAR *) L"Poke";
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- B `) u: N ~) p1 F+ w, P hr = m_pDisp->GetIDsOfNames (9 ^- A( \! r3 T4 @# {
IID_NULL, // reserved
0 p9 t+ K- Y0 e6 _8 T% @ &Name, // Array of names to get IDs for
$ j. f9 T" d4 d, B2 E; ?4 m 1, // # of names in the array
% |7 g7 M9 E+ b9 s) V% r: m5 E LOCALE_SYSTEM_DEFAULT, // System locale
" d O K9 D4 ~! G &pokeID); // Array of IDs to fill on output
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if (hr)
# _6 C8 m9 D9 z6 A( k {( g6 [5 r7 w3 f$ L, N$ c9 E/ N7 r
MessageBox ("Get Poke Unsuccessful");
- [6 f, d: ]' _7 G3 W# T% J. f return;$ I8 o& C) q: j9 C
}
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/**************************传递数据给extend**************************************/+ e- U* V8 _& v; E* t5 u
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");' ^5 Y+ m5 X. B
VariantInit(&pokeVariant[0]);
9 \6 g$ t* |! u) l pokeVariant[0].vt = VT_BSTR;" w- A) D: i' r4 f; v3 T3 d3 ?5 G! D
pokeVariant[0].bstrVal = valueStr;
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- R. B+ k7 b* _ x/ ^+ H; a5 X itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
$ {' W. }" V! K7 N1 C! b) x8 _- V7 L VariantInit(&pokeVariant[1]);
3 ~& |7 H$ r( h9 q, M5 t7 t pokeVariant[1].vt = VT_BSTR;( M% ?. f4 I, w# V) ]+ S
pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");- W. D j. Z& B. `/ D9 i1 E
VariantInit(&pokeVariant[2]); % L: z* F- S% R# M$ V" V) ?8 Q% A
pokeVariant[2].vt = VT_BSTR; E3 u6 S8 [6 F9 R$ Q* I
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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' ]7 b# U4 }/ p! @, g dp.rgvarg = pokeVariant;
" r! E* l* [. p) t$ _/ S dp.cArgs = 3;
S. \2 I; u6 h) P( {$ s dp.rgdispidNamedArgs = NULL;% m9 U N- _( E2 S
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(7 g- ^& m% B1 N. n
pokeID,
U* J$ N5 o* I; S- X2 Z IID_NULL,
; V$ N$ R7 Q" \% s LOCALE_SYSTEM_DEFAULT,3 T: l) L' u6 B! o) T2 k4 Y
DISPATCH_METHOD,* |4 C% B/ t9 d
&dp,( O; p% S4 f) y4 s- e" W
NULL,
: A6 m. J3 ^5 y. \: _ &ei,* c& S! Y! m8 S7 j, ?5 a4 r+ E/ W" ]
&uiErr);6 j& v" v+ t. ?$ ?$ o# u
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SysFreeString(topicStr);- K9 v$ |# \* j; Z
SysFreeString(itemStr);( t- d) I! w' {# C# c' m
SysFreeString(valueStr);
2 o- o, I) s3 w( o7 Y/ [. Y; R
; g+ K4 ~2 w3 i$ p1 ?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？？？/ X ] q* f; O3 E( t& ^
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？？？？
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2.这是request的程序1 n) t3 R g1 c& ^' v% }- M& t
// Request a value from Extend
; {9 I" M6 G' ^; ?, b& e//
( \# z0 s# O7 }- c" V// Initialize the variant that will hold the BSTR. Set the variant's8 L, N2 i; Z- A5 ^/ P- v3 F, { e9 H
// type flag to indicate the fact that this variant holds a BSTR. Place the
. ?% [) y+ t7 E' Y/ D8 r// BSTR into the variant structure.$ u' p* L1 y; ^4 k5 E0 I+ R
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
; F+ ^& ?; N1 H$ v' L VariantInit(&requestVariant[0]); 2 W q3 b0 h% Z9 s
requestVariant[0].vt = VT_BSTR;
, M; ]9 X8 W4 P% @# l* w0 p$ V requestVariant[0].bstrVal = itemStr;; v H% S! ~. o2 g. z9 o3 N# r
, O7 y; v y# U* r, [1 g topicStr = SysAllocString((WCHAR *) L"system");
! j! B( @5 Y. B VariantInit(&requestVariant[1]); : M( T9 t/ v6 q. k3 F7 E
requestVariant[1].vt = VT_BSTR; w2 [0 x# L( r7 x
requestVariant[1].bstrVal = topicStr;2 P7 Z0 z! Z' H. o4 m n6 x
" L2 l! K0 p- P6 B// Set the DISPPARAMS structure that holds the variant.! N! r, N4 U {, y1 Q& I% [: a
) {; ~+ `( m! L8 a1 ?+ N dp2.rgvarg = requestVariant;) G) n0 H" T c5 F, |
dp2.cArgs = 2;! s# N: Q3 D) W! Y
dp2.rgdispidNamedArgs = NULL;5 n9 m! G# u. A! k
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;
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6 L- Q7 U; w. p O* e( m" E; R// Call IDispatch::Invoke(); i0 q* l* U% A
( ?8 F* P6 N2 r% F hr = m_pDisp->Invoke(
& N7 Y2 z$ ^4 L2 \1 j4 S; T q% X1 Y requestID, C0 l# \& f6 w5 C6 K3 v
IID_NULL,0 P/ [; A2 X$ J/ C {
LOCALE_SYSTEM_DEFAULT,& s2 C8 d) Q. h9 N3 V: H
DISPATCH_METHOD,3 q% ~( e. y- i8 I% P0 U- D
&dp2,% E4 ~/ x9 O" V; a: K8 L
&var,
% G7 M& {- I9 V5 t( _; G! \ &ei,
' _4 G! Y0 x) H s- T' R" \7 G &uiErr);
8 y$ h: U" i6 h! _
9 n+ q' Z8 f3 k& U5 G SysFreeString(topicStr);2 y' m5 P3 I( P
SysFreeString(itemStr);0 e S6 h. |2 T
请问该程序是获得extend里面的哪个值？( S) }3 v- `: G6 t
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
