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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 b$ d7 t6 y# s, S: l# O8 E% {
Name = (WCHAR *) L"Poke";- x# N' _/ W3 d4 \" Q2 y7 G4 W6 ~
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hr = m_pDisp->GetIDsOfNames (' k. n/ a4 [+ ]: _8 J
IID_NULL, // reserved9 i6 B+ w; J7 R
&Name, // Array of names to get IDs for6 m o3 K- [" u: |; W$ r+ m
1, // # of names in the array
# J9 y8 a5 s/ W" Q% A( c LOCALE_SYSTEM_DEFAULT, // System locale
2 t# | g" @: y# j( f0 q &pokeID); // Array of IDs to fill on output% X- F( P& I$ [# c% e `+ l
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if (hr)' Y$ j' ?' o) W% o# r, z7 a9 f( f
{
' {* j: M3 A" A2 {$ h$ e$ T MessageBox ("Get Poke Unsuccessful");
, b' [+ \* F L return;5 u5 w" N- @- I+ c" B
}
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/ @- I4 j/ f2 S$ b L% `% B/**************************传递数据给extend**************************************/! n. g2 w8 n7 s; ] J
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# e. P! R! a- _6 S8 Z, ]7 H
$ h$ c( {$ w0 @" K valueStr = SysAllocString((WCHAR *) L"1232");+ ?0 m: t$ ^' b M: [/ a, i! a0 @7 o# E
VariantInit(&pokeVariant[0]); ' |3 _9 J& `' Y
pokeVariant[0].vt = VT_BSTR;! z# A8 P# C9 s# S
pokeVariant[0].bstrVal = valueStr;) |( F) P5 E1 Q$ k0 p6 s
/ A) V6 ~0 q( \% @3 X' O itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% a) R$ `$ d* h+ |0 `
VariantInit(&pokeVariant[1]); f& w$ [5 i5 _6 J" u7 Z! I
pokeVariant[1].vt = VT_BSTR;4 o6 k8 v# T! C' C+ B8 G
pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
" L" Q l" I' M VariantInit(&pokeVariant[2]); 5 ?2 K4 S5 q$ F. ] Z8 H9 M9 C
pokeVariant[2].vt = VT_BSTR;! C; G$ ^9 I( a3 E
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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$ Z; m9 c; d) [/ ^+ A dp.rgvarg = pokeVariant;
9 v( J+ f! { s% L dp.cArgs = 3;
5 [& q. K# ~8 I. B+ C dp.rgdispidNamedArgs = NULL;: {8 X. ^; `& j9 m( L2 ^. o+ f
dp.cNamedArgs = 0;' A/ U- Y1 T+ d; o W# K
5 R D; B- c+ q6 f) e2 s// Call IDispatch::Invoke()% T8 v# A6 I, M
7 J4 h. R8 O* `5 `' i. z6 v hr = m_pDisp->Invoke(% }* S5 o r: Z K- i
pokeID,
3 A2 |1 B9 {! J% z# U7 e& W IID_NULL,/ X! S* l9 H& N$ `0 o9 d
LOCALE_SYSTEM_DEFAULT,
6 q: A9 J% r' E* _ DISPATCH_METHOD,3 f+ f1 ^% n: j, s8 A
&dp,
- l" O- K$ Y1 ~4 G# U8 v NULL,3 x1 q3 ?' G1 \- X) W Y
&ei,4 ~' }' o* M6 t" j" Y7 H/ {) u
&uiErr); l2 @: L0 H/ W$ ~, t0 F! w' |
0 C# {5 v' R* x. G3 \$ }
SysFreeString(topicStr);
& S! l. ?. ^* C' A# } SysFreeString(itemStr);! p7 G" I2 f$ F# r! P
SysFreeString(valueStr);! B; r1 i m# v7 P! D' r& Y* Y
& F7 K" m. v! | }1 W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???
) ?) I9 A- \( M' c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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( ?+ g5 s5 N) @! X+ z, p& C; m2.这是request的程序* o! a! ^- W6 i3 o' Z# w
// Request a value from Extend8 k5 S4 F, |) g" V% J5 ]
//
1 T- z& V7 T& }% }$ ?// Initialize the variant that will hold the BSTR. Set the variant's Q2 l/ Q7 M& g) |
// type flag to indicate the fact that this variant holds a BSTR. Place the
+ x% h9 M4 i G5 C1 T2 {( c// BSTR into the variant structure.& p4 o7 O4 |: x+ _) z4 U! E
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ k: ]2 z# B* W, n
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
) r) @! D6 l9 u6 h+ w* E VariantInit(&requestVariant[0]); : p, P E/ e! z n4 G
requestVariant[0].vt = VT_BSTR;% A% k# X! O% a9 K6 n N& Y
requestVariant[0].bstrVal = itemStr;/ D- M& ~5 Y4 f- W' L5 U7 y
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topicStr = SysAllocString((WCHAR *) L"system");
: O4 ?8 T7 c* A VariantInit(&requestVariant[1]);
4 w+ l* G8 {3 a/ i+ B5 C requestVariant[1].vt = VT_BSTR;, _2 x) f$ `* V# k
requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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! q5 c' @" K* L( H. R dp2.rgvarg = requestVariant;3 R0 I1 l4 u- ^" N# x$ y* u- l
dp2.cArgs = 2;% W+ d9 n" q% i( p
dp2.rgdispidNamedArgs = NULL;2 J. }- F' [5 f3 I
dp2.cNamedArgs = 0;4 R' ^$ O d+ y5 O
! ~# U7 J2 M8 v) @% m* M var.vt = VT_EMPTY;
+ G% j. u5 ^& M' K$ x+ m
8 v1 P& Q& @8 x# \- v// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
# P7 n2 r! Y E. P9 y; P6 r/ n requestID,
0 I0 T' |8 Z7 r0 h' G9 G; S0 M$ l IID_NULL,
/ r/ o: h; P/ o! g' H/ O LOCALE_SYSTEM_DEFAULT,
& `+ h7 ~% O9 u1 b4 o DISPATCH_METHOD,. l4 x; l/ A) U$ o) b
&dp2,
$ z! A+ e: x! }" P &var,6 Q! H/ n' u" m4 Y- u# I
&ei,' _1 C( U) A( T
&uiErr);
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SysFreeString(topicStr);: ]9 s5 q) h* s; I# X
SysFreeString(itemStr);0 R; A0 z& t" } P# j( L! W4 F6 A5 C
请问该程序是获得extend里面的哪个值?- Z. Q, o$ X0 _6 J' 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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