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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:
. d! X0 T" p0 {% aName = (WCHAR *) L"Poke";: B* j9 `! H" g( B1 K
" Y2 o T. m X8 q; q/ e! `: l hr = m_pDisp->GetIDsOfNames (
, I# ~$ K, u4 p IID_NULL, // reserved( n) Y3 M# a# d* H8 T, ]
&Name, // Array of names to get IDs for
3 n( O$ Z0 f* V, E* H- p 1, // # of names in the array
% X0 M% P7 i4 `1 p+ i5 i% g LOCALE_SYSTEM_DEFAULT, // System locale. G, q" m/ n$ @; T
&pokeID); // Array of IDs to fill on output
% _" U' X N' _0 ?4 d2 ^ 8 h: R8 S( r* ^
if (hr)( w3 i# w& S6 m6 e+ x% _! m' P8 ~- D* f
{
% G; Y; n4 n, @! _3 E: Q0 s MessageBox ("Get Poke Unsuccessful");
( N/ [6 f5 p% f return;6 _7 L" R; ]. ~: f6 x- N8 m$ Y& \
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/**************************传递数据给extend**************************************/
, M' D: h' X( N. y pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
# ]6 q7 ^' c8 O/ h& w9 ^6 ^0 C
7 E0 |+ w) H. U+ U7 a valueStr = SysAllocString((WCHAR *) L"1232");
" i9 g% `6 ~7 v/ E VariantInit(&pokeVariant[0]); 6 C/ N2 C1 q! f5 K- [1 I
pokeVariant[0].vt = VT_BSTR;) d5 i {; c [, c! S
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ `% I: W& F4 i8 B
VariantInit(&pokeVariant[1]); ; U& Q# j* S% ?4 P
pokeVariant[1].vt = VT_BSTR;3 f( G$ \$ l0 Y& ~: y
pokeVariant[1].bstrVal = itemStr;/ i! W1 w6 V5 n, I: v
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topicStr = SysAllocString((WCHAR *) L"system");6 z x1 X* q2 \! M6 J1 ~' V2 J/ v8 o
VariantInit(&pokeVariant[2]);
: C3 `+ F' W% z$ n pokeVariant[2].vt = VT_BSTR;2 p* ?5 E5 { F7 Q! C/ j
pokeVariant[2].bstrVal = topicStr;3 ^) ~, K% g0 w. `. y" P
3 H+ R8 z6 R2 v// Set the DISPPARAMS structure that holds the variant.
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& ]0 s$ Q! K' l dp.rgvarg = pokeVariant;
' q# u3 n) H4 j- n( D* g dp.cArgs = 3;
1 s8 {; V" y/ B! x& c dp.rgdispidNamedArgs = NULL;
7 \: a* n5 q7 Y9 f: H% M dp.cNamedArgs = 0;7 p3 h0 c- Y1 u+ s# M1 w
$ n$ j$ C$ s2 g1 \// Call IDispatch::Invoke()5 n% [, h6 Z* j6 z6 W
6 t* p- w( G) o7 ^ ^ hr = m_pDisp->Invoke(! y* F @5 i( a+ d0 x0 w) |% i$ n
pokeID,
9 A$ k$ K, J( e' K* k IID_NULL,
0 n# n# P4 n' ] ` g2 V LOCALE_SYSTEM_DEFAULT,/ x O/ N! V6 B3 M. g( }. A% n
DISPATCH_METHOD,# q6 c+ Z+ k8 { u! B/ B8 `
&dp,
6 N; Q1 `0 L j! L2 v NULL, Z1 L, ]+ ]0 w" [( s
&ei,
" P B3 q* B1 m8 i z8 T; x &uiErr);" j- n+ H [/ R& h
$ [' f r& N7 ^" W! O4 ?
SysFreeString(topicStr);: i% s. k! g6 W3 ^ c$ |1 {
SysFreeString(itemStr);" T2 _8 r. [7 I {$ O! s
SysFreeString(valueStr);
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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???' W! F- H6 K2 C9 s/ d
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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3 V# n" F& n- X' M/ e* ?. z9 b+ q* ~
2.这是request的程序
0 ^- o+ U! z; T! {6 X. F; U' h// Request a value from Extend7 z" X: u) q- ~; G/ w8 [! R& m$ \
//
, s' Y' a5 D; j% \, ~; V. w// Initialize the variant that will hold the BSTR. Set the variant's
1 c+ |9 v+ X$ a' ?1 z( o// type flag to indicate the fact that this variant holds a BSTR. Place the
3 Z5 n; o5 N" ^1 T5 o4 n// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
: K: Q* h* _' l! _
. l P' D( N3 b# M4 u& U itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 p- X2 E6 h* b% ]: O5 M# Z) m+ r
VariantInit(&requestVariant[0]);
' R5 o+ l! }. W& w9 Q5 F; i requestVariant[0].vt = VT_BSTR;
4 j! W0 Z& i5 _( _1 C0 r% ] requestVariant[0].bstrVal = itemStr;, s5 H, ]1 [8 o% X G
: V% A5 D' H2 R0 N. V
topicStr = SysAllocString((WCHAR *) L"system");
: t( ~1 X- K6 N) r, c4 t/ L+ @ VariantInit(&requestVariant[1]); 8 ]: L% w" p1 o4 ~8 t. q7 K1 H, M. s
requestVariant[1].vt = VT_BSTR;
- \/ s( M% z" D. H- r$ u requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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% b+ E9 L/ [2 J dp2.rgvarg = requestVariant;' m( U: S* P, \* n
dp2.cArgs = 2;6 X! l- g7 E% [8 e/ u# @# }
dp2.rgdispidNamedArgs = NULL;2 B3 k, I9 E t! h
dp2.cNamedArgs = 0;# Q! \2 S4 P8 Q; K
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var.vt = VT_EMPTY;4 m8 y# ]) ` A) Z3 X, P% c. i
4 t9 U! X Z$ r// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(: `" \) l& f. \ R ~* c, K. P
requestID,5 ?* w5 V1 A5 e0 u Q# L. S
IID_NULL,% J6 x. k5 r. `7 j* V1 J5 n3 A6 l
LOCALE_SYSTEM_DEFAULT,
3 G1 Z0 K! s" b# N0 Z$ A1 d o" b DISPATCH_METHOD,; e# [) ^, D, g
&dp2,
4 x2 O, A4 l+ i2 n$ [ &var,- y6 ]) N5 V p! q
&ei,
; x- e4 W" z- i% Q2 y &uiErr);6 I: i- ?- ?% K) Y: {- Z; E+ @3 n
7 V; ~" z7 H: k: ?
SysFreeString(topicStr);- D Y2 Q9 ^4 i3 D: Y2 s, I# O. J, l
SysFreeString(itemStr);; n, Z# e4 f( w$ f7 O
请问该程序是获得extend里面的哪个值?
* ? D. ]8 e9 U1 @( X& 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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