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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:
7 X2 K9 `' a$ a8 zName = (WCHAR *) L"Poke";
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) p, `. S7 W0 n hr = m_pDisp->GetIDsOfNames () k* f5 G. L' Q4 e5 @# Y: k
IID_NULL, // reserved! J8 P. @5 `9 ^7 o6 G
&Name, // Array of names to get IDs for
; s9 E( G/ ^& l1 J. D 1, // # of names in the array
/ o: |. Q1 M& @ LOCALE_SYSTEM_DEFAULT, // System locale
7 Q2 p( Q: q7 F( E. g5 V: R/ D &pokeID); // Array of IDs to fill on output! r4 F, P. F0 @! F# I% c
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if (hr)$ y% W' u4 I$ s* w
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MessageBox ("Get Poke Unsuccessful");
3 f9 q6 h4 W5 Z4 t. v, L return;! o1 z8 I& Y6 H4 U
}
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/**************************传递数据给extend**************************************/
5 \ G$ t' _- h3 q) H pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 ~/ M8 U0 {7 |5 ]$ n7 A* C, Q
# [* j8 W& }7 W. |, U: P valueStr = SysAllocString((WCHAR *) L"1232");" S* q [9 q9 E. x( `& `
VariantInit(&pokeVariant[0]);
" `" T9 o. `) x3 e) i- h pokeVariant[0].vt = VT_BSTR;
9 V$ R1 F) U3 O v4 r- R pokeVariant[0].bstrVal = valueStr;
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9 m" _6 |0 {0 b k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, x7 ~( u, u9 L) v& y+ i
VariantInit(&pokeVariant[1]); & E1 P4 j: ~9 j; _/ L# O2 d
pokeVariant[1].vt = VT_BSTR;4 D0 Y! |3 }5 `3 n: n- E
pokeVariant[1].bstrVal = itemStr;
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* o& v# A* ~, F- x5 |0 ? topicStr = SysAllocString((WCHAR *) L"system");
1 M3 H& F$ s( }# s VariantInit(&pokeVariant[2]); 0 w5 M: E, i$ G& U* ]) o: p
pokeVariant[2].vt = VT_BSTR;4 b1 I" E- z0 w. O
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.0 n) J; T e7 `/ T0 m5 _( s1 z/ w/ \5 Q$ H
0 ]: H" F4 O, c, j dp.rgvarg = pokeVariant;% d( r0 n$ w% i4 e( P6 I
dp.cArgs = 3;
, {7 l! @+ X( U) ]! B dp.rgdispidNamedArgs = NULL;
6 C6 f3 ^& }4 t- y dp.cNamedArgs = 0;
& `. B! v! _0 v Z4 ^6 d& `
( n& z5 l# f& r2 Z. E, g3 j// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
: B1 Q6 Z/ M) O pokeID,
# j% B2 P% T/ W IID_NULL,
) \* i& k2 M+ V. E( ~" w5 W LOCALE_SYSTEM_DEFAULT,* {% t% Q; W1 R+ n/ H0 i% w# b: m- B8 X
DISPATCH_METHOD,$ D2 ]! ^( e2 N& L* w. o
&dp,
6 ~" [& n$ P5 b; T NULL,
3 Q8 x I4 f; z: \) b0 o0 ~8 Z &ei,
v! z P5 z& W( T9 m &uiErr);9 H5 y& |8 @! f3 H" O' g- ~7 u
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SysFreeString(topicStr);
% K" p6 |1 M: S: Z SysFreeString(itemStr);
! v5 a: N3 ]1 i SysFreeString(valueStr);8 t+ c/ J8 }! `3 Z5 H
' ~5 |5 N7 l# k
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??? u% y5 y4 ~5 d' 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
6 m5 x: N. z g// Request a value from Extend
+ D* P, u3 u) Y' F4 Y4 c//, B3 p3 Z' ^' K# w& W+ `
// Initialize the variant that will hold the BSTR. Set the variant's& v7 f" Q6 g; O5 K
// type flag to indicate the fact that this variant holds a BSTR. Place the
! ]1 ], A" F3 `// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' ^3 o: p' [8 G5 }
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 r t1 l& e. r @
VariantInit(&requestVariant[0]); : y# r$ M. G8 O
requestVariant[0].vt = VT_BSTR;1 z1 `2 w4 Q7 e* v# {8 R
requestVariant[0].bstrVal = itemStr;/ I$ a/ ]- m3 o5 j9 x+ O
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topicStr = SysAllocString((WCHAR *) L"system");
8 }( i8 H5 F9 Y7 L VariantInit(&requestVariant[1]);
& _5 @$ K8 [; F: i% e9 A" T! X9 p requestVariant[1].vt = VT_BSTR;
: b1 B+ u$ x; n0 h. G: \( X requestVariant[1].bstrVal = topicStr;' K' ^8 P5 d$ H0 u3 x6 M1 r
, r6 O4 M4 M+ K M4 }
// Set the DISPPARAMS structure that holds the variant.# e+ l; M' a& \7 q' j: R
8 H" I6 q" H% r2 v9 A8 L( h dp2.rgvarg = requestVariant;
: o# P. L, Y8 |9 A- p8 B! g dp2.cArgs = 2;' m& ^9 {4 x2 D$ I: P& E
dp2.rgdispidNamedArgs = NULL;* E0 ?6 T2 A X' ?/ q
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;4 D7 \# |& l6 O' z! D
0 d9 C; w+ a _( Z( x. B8 y) _; k// Call IDispatch::Invoke()
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7 }9 ?" e( _# u$ P hr = m_pDisp->Invoke(8 R- J( v* }8 l, k0 l
requestID,
& y: Y' }- V4 Q8 q' V IID_NULL,
. m+ U8 Z% N9 f/ j LOCALE_SYSTEM_DEFAULT,% B! C$ f$ N3 E7 M
DISPATCH_METHOD,
/ q* Q1 L( x) z& u, S' j. n &dp2,7 v- e9 r" K& h; _" _+ f( T
&var,# H* S, U- A+ S" S3 W: ~1 f
&ei,
9 U; k5 d: r) A, p. M' n K' y3 f &uiErr);
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: @" Y6 H8 @3 B) M# g3 U; t6 w5 v SysFreeString(topicStr);
: }# r( K% v1 I2 P# O5 d7 E% \! l( ` SysFreeString(itemStr);# W' f+ h8 q5 \: [
请问该程序是获得extend里面的哪个值?+ m' K8 _2 e4 R! A8 I
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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