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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:
5 b/ a1 k: q! N. `) cName = (WCHAR *) L"Poke";
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/ v( f) [: n+ L0 S2 e hr = m_pDisp->GetIDsOfNames (6 w# T) o2 G# X1 M" l( q0 {
IID_NULL, // reserved
1 h/ h; K2 Z, [( V &Name, // Array of names to get IDs for1 a3 g- k. ^# L+ W' x$ Y- J
1, // # of names in the array
' I+ A9 H5 X" t1 W( H LOCALE_SYSTEM_DEFAULT, // System locale
; N1 H% J. u* p% H7 J @; H& l+ `" w9 T &pokeID); // Array of IDs to fill on output9 F5 e# b& ^& }* X8 A) _0 L: x% B
4 P- Q* p' u! r- _) B f
if (hr)% `- P7 j* z2 J% J( `* v4 d
{
! p% I& Q/ N. i5 d3 H$ F7 i( v0 ` MessageBox ("Get Poke Unsuccessful");; T: m$ ^, \, E4 X1 _* B' D
return;2 ^. ]& b0 S9 q; R# l3 @: _
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2 K+ \8 J, N2 q' ?& Z/**************************传递数据给extend**************************************/
! n8 v' I# y6 |& } pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");$ e; Y& g( E' p" D' ]" ~: y6 A
VariantInit(&pokeVariant[0]);
W% b8 g* b4 `; D0 d, `) J pokeVariant[0].vt = VT_BSTR;7 t, x5 Q8 k3 f
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( v' z3 k/ B: S% B* v9 ~
VariantInit(&pokeVariant[1]);
7 A) }) z# S9 m5 S pokeVariant[1].vt = VT_BSTR;: q( ]! V7 m+ ^8 c) B2 P
pokeVariant[1].bstrVal = itemStr;# W& b4 C9 J+ U
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topicStr = SysAllocString((WCHAR *) L"system");' e$ P2 A% s' B8 ]
VariantInit(&pokeVariant[2]); ) v5 N/ w! R+ I
pokeVariant[2].vt = VT_BSTR;
2 E- _, X/ T3 N- l! J pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
1 `; W& G; {# G; A+ }# q" E. Y( ` dp.cArgs = 3;& y! H6 m+ K# m- D0 l
dp.rgdispidNamedArgs = NULL;1 H. {1 j, u, r" k' b
dp.cNamedArgs = 0;. h* V. C1 v1 N
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// Call IDispatch::Invoke()
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+ P3 r, C1 z. | hr = m_pDisp->Invoke(
) E& h6 p6 L4 I! { pokeID,; V( m: w- v, e
IID_NULL,
2 y" H/ F+ q0 A LOCALE_SYSTEM_DEFAULT,
3 S8 r/ N. ~8 ], T; G; C DISPATCH_METHOD,
' Q! A" b; D, n &dp,, t; l) n' z' w+ N: a, B6 J4 k+ e
NULL,1 L3 C1 m0 u5 N/ T+ G; M3 t- y3 p
&ei,& r% E9 d! R8 i# I, ~
&uiErr);& B" S; v+ U( t0 W
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SysFreeString(topicStr);8 c7 i* b' ^2 D4 n$ l. Y% @
SysFreeString(itemStr);# t% V7 w/ E) J! r% U j5 W# D
SysFreeString(valueStr);$ q( B- Y4 o: n4 s. r9 {; n5 r
% U7 G6 M+ z1 t& j
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???, l- v: L g6 \& H) B, F
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????! R B4 m; Y3 e! H! G. x, V( e8 q- p7 E
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X- r. X z3 { J2.这是request的程序
8 y. |, s( o# T" M( w% M9 G# m// Request a value from Extend
( h/ Q, ~1 R6 ~0 S2 z; K//$ r2 H( w, R- t) n: c4 a/ @
// Initialize the variant that will hold the BSTR. Set the variant's
/ R2 k% I; \& l// type flag to indicate the fact that this variant holds a BSTR. Place the
& i* U9 J4 G0 Q: @- ^6 Y# d5 `// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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. o( `6 C0 g* b; l' `8 }+ L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 t% \: k. d2 s! [- p* N
VariantInit(&requestVariant[0]); 7 G3 E. g6 c5 J
requestVariant[0].vt = VT_BSTR;
0 L0 {# `4 q, Q v requestVariant[0].bstrVal = itemStr;7 \% j4 J: m8 i% t- W
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topicStr = SysAllocString((WCHAR *) L"system");
! B+ D R8 O: _( n3 C7 Q7 F9 o VariantInit(&requestVariant[1]);
! j4 n# r3 q% r' i2 M, { requestVariant[1].vt = VT_BSTR;& F% L2 m! v1 s# C0 k
requestVariant[1].bstrVal = topicStr;# j) k/ M' Q# g. r
7 Y! C5 c: q7 `. U" c// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;$ A! N! e0 c6 O( m; f5 S2 N
dp2.cArgs = 2;
/ W" n" a; ]5 h; k; O0 y/ w dp2.rgdispidNamedArgs = NULL;' q0 V- z. |3 d7 @
dp2.cNamedArgs = 0;
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9 O# N( N# @; j$ O1 E3 W var.vt = VT_EMPTY;
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2 i! _$ I/ P) @; K9 L& }// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
& v# o( w, j9 T% x9 o requestID,
2 ^# O# K# G4 R5 B2 j+ W2 K IID_NULL,: l3 i- a! G1 f: g {( C F
LOCALE_SYSTEM_DEFAULT,! \2 W& @9 C6 N$ _; X" h- T3 d
DISPATCH_METHOD,4 S+ r5 ~/ L _3 ?2 I. Y( b+ N
&dp2,
* S, b8 {" ]% i8 f) K &var,* d2 S+ H; D! l. A, q; r& E6 j; F a, c
&ei,
5 X, p8 p; q; d &uiErr);
9 {4 H, c* n4 P7 x
7 R/ y- F& L$ c J* J u SysFreeString(topicStr);
" H, X' n! t" _7 [* N* f SysFreeString(itemStr);& X4 I+ d' V' Q! Y0 q4 E
请问该程序是获得extend里面的哪个值?6 r' D% b7 @3 g* a' O/ J$ r3 n
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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