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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:
* V- A0 k1 H [8 a0 yName = (WCHAR *) L"Poke";) D3 k( s, J/ L7 \2 z2 o
, ~# e0 `6 U% T k' \6 z: Q hr = m_pDisp->GetIDsOfNames (3 a- ?& F# K @, N1 F
IID_NULL, // reserved) B4 ^1 W v4 y* I# E
&Name, // Array of names to get IDs for! r7 N) [. z2 _1 V1 ]- T
1, // # of names in the array
2 ^. ?/ R6 B5 F/ ~ LOCALE_SYSTEM_DEFAULT, // System locale
6 I6 w a ], p U &pokeID); // Array of IDs to fill on output6 _- v3 P! D- T- [
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if (hr)
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MessageBox ("Get Poke Unsuccessful");4 F4 [* F. k# U- D7 P
return;
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/**************************传递数据给extend**************************************/2 t8 v5 O" f+ q
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");- V8 t5 I2 j- F
VariantInit(&pokeVariant[0]); & E, c# P, a! P( ]$ D
pokeVariant[0].vt = VT_BSTR;, e6 {8 a* S1 @1 L3 v
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- X2 G- c( J; [
VariantInit(&pokeVariant[1]); ( ]) q' H) `% ~6 V
pokeVariant[1].vt = VT_BSTR;, \9 i" t( \+ [7 x
pokeVariant[1].bstrVal = itemStr;5 L& p0 z. y, X5 L8 Q( j7 w2 e
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topicStr = SysAllocString((WCHAR *) L"system");, o9 E: d! R/ {4 {* S2 k9 I
VariantInit(&pokeVariant[2]); & f" M$ d$ H% ?/ V2 n: g
pokeVariant[2].vt = VT_BSTR;
; p+ t6 A4 v5 z pokeVariant[2].bstrVal = topicStr;* b3 Q& w* [. `& s4 N
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// Set the DISPPARAMS structure that holds the variant.
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) n; B' ?# y* o& d. v6 |5 W dp.rgvarg = pokeVariant;7 s: w2 c2 w$ I& p% U
dp.cArgs = 3;
+ m' z, w: h, H7 m+ @ dp.rgdispidNamedArgs = NULL;0 k) g1 Y; J2 G) d1 ?9 B$ g
dp.cNamedArgs = 0;6 J& h3 C$ Z/ n& A
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
8 ]) O6 U% Y3 c+ }* q& _ pokeID,
! k4 A, r! j7 ?1 g5 Y P IID_NULL,+ A7 y% q0 J0 t" x! H$ L3 |! H6 p
LOCALE_SYSTEM_DEFAULT,
; v" {" @ `) I0 e' H% @ DISPATCH_METHOD,
: S5 P7 B3 y& m F" d, [ &dp, r% h# b: G* ~3 @9 A
NULL,
! y3 b" J: D$ X- W &ei,
! K7 w( m! S* O+ w. y# Q; c. }( B &uiErr);4 ~, ?( h: {, c/ M- ^2 }
, [: Y: v- T: w2 k/ O9 `$ J) F SysFreeString(topicStr);- a+ A' n+ h) M9 w" d2 a
SysFreeString(itemStr);; R z+ }1 r1 u9 M' |
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???
* Y0 x4 K+ t5 n* n4 M0 H2 c1 L* Y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' \" }. F' E1 v) u, H& r
// Request a value from Extend. B# ]0 V% p# j0 d' Z2 K- E- A ]
//& j z7 L! g% ]! `4 f; q; q# s3 W) C' {
// Initialize the variant that will hold the BSTR. Set the variant's) p/ ~8 A. r G' }
// type flag to indicate the fact that this variant holds a BSTR. Place the: F8 H. K. }) X& a0 C: N
// BSTR into the variant structure.; I* e7 W* m) c/ j0 z4 F
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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) f& V, ?% D9 c9 H! x. k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
# q' T% Z8 k' V. b2 P6 `# ? VariantInit(&requestVariant[0]); 3 f, a& E8 Y W# ^( `
requestVariant[0].vt = VT_BSTR;
/ U% J7 u9 L- k1 \4 u requestVariant[0].bstrVal = itemStr;4 d) z* w3 v8 O
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topicStr = SysAllocString((WCHAR *) L"system");+ [& c2 ^* w) c$ @, I0 C$ c
VariantInit(&requestVariant[1]);
2 f+ o" F9 A6 q: G requestVariant[1].vt = VT_BSTR;
6 D: @# K+ _# ~/ i K2 k requestVariant[1].bstrVal = topicStr;1 E# \: y( q o
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// Set the DISPPARAMS structure that holds the variant.0 x( ~) w0 u. B2 V7 d) z4 A) t
) a+ e, a. _* _% R: y. n dp2.rgvarg = requestVariant;9 H7 P" u- X5 X# |1 [
dp2.cArgs = 2;
/ p& j6 z. [( t dp2.rgdispidNamedArgs = NULL;
2 k0 r2 f9 E% k; v1 j dp2.cNamedArgs = 0;
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% f5 M Y3 r. R" b3 a4 ]$ u var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()0 B! V$ _6 l7 t/ c% A
' ~% a! r+ W- D U: ` hr = m_pDisp->Invoke(
9 P& W: k5 W! d2 @7 X( x' F requestID,* U) |; o7 s. Y7 X- h, x8 ^$ U
IID_NULL,$ X/ M* M) | p4 ?( B# R9 }9 F
LOCALE_SYSTEM_DEFAULT,
* p- x2 C& Z+ K {( Q DISPATCH_METHOD,
" m" V: r& V6 Y" a1 M4 N &dp2,
( s, v, o8 n; c3 d1 j) O &var,5 l2 c( f: B9 ~" B: n
&ei,6 N9 j/ k/ f8 J
&uiErr);
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SysFreeString(topicStr);
4 y3 M" e4 u7 z3 U K SysFreeString(itemStr);
3 k$ [% n1 }" d& f+ u( o请问该程序是获得extend里面的哪个值?
7 d$ N9 B f6 c6 R! p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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