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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:4 L! O# @# U% G
Name = (WCHAR *) L"Poke";
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; Z, R" b: I: m/ u* |7 } hr = m_pDisp->GetIDsOfNames (: [9 q$ g% L4 S( m& x/ `, t7 u
IID_NULL, // reserved2 h9 u, V0 r3 c7 J
&Name, // Array of names to get IDs for
; J( H" L3 ^5 X8 G. p+ ^ 1, // # of names in the array) ^# Z% h$ f* [. t4 I7 B
LOCALE_SYSTEM_DEFAULT, // System locale
- s* s* f3 I7 O: o &pokeID); // Array of IDs to fill on output
# b; `+ ]# C6 h 6 \( V7 o8 o8 Q2 Z5 i
if (hr)
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MessageBox ("Get Poke Unsuccessful");
: w! b. c f: _6 I return;
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/**************************传递数据给extend**************************************/
& s. o& F0 U5 f9 J. e6 M pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 c* |# W6 r: C. |- l1 c. D
9 _$ K0 e: C7 `0 U" {
valueStr = SysAllocString((WCHAR *) L"1232");
: i0 M L. J. }2 F" g VariantInit(&pokeVariant[0]); + z: X n( u1 b9 v
pokeVariant[0].vt = VT_BSTR;' C m+ `# Y0 j# G' J8 E, y( ?
pokeVariant[0].bstrVal = valueStr;. S; s' N+ ^8 J3 r7 Z
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
$ q( y4 @! L' t, z) q7 c VariantInit(&pokeVariant[1]);
2 E: i7 A3 B' P pokeVariant[1].vt = VT_BSTR;7 U+ | j- W' Z7 o' L3 b- l& T: R
pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");; ]% ]" B5 \/ q! n u- L
VariantInit(&pokeVariant[2]);
$ z* C" ~5 G* N* s5 d pokeVariant[2].vt = VT_BSTR;
9 O/ U7 v/ o3 ~: D pokeVariant[2].bstrVal = topicStr;# f% p! B+ L" x4 N+ ~
. X. x l9 i0 X$ W; n' s' Z) K// Set the DISPPARAMS structure that holds the variant.
" G" ?+ r! P \% @) g
?" G% \% Q; N+ S' q dp.rgvarg = pokeVariant;# }( l' m2 ?( |
dp.cArgs = 3;& u# S4 _4 S2 T' Q' F" D
dp.rgdispidNamedArgs = NULL;$ t& x( p- m S/ k, L5 f- `
dp.cNamedArgs = 0;, P+ F1 z1 o$ X1 T9 g# ?9 I
$ _" C7 p, l* B% }* V, B/ f6 u// Call IDispatch::Invoke(): n* E1 S% @1 |! ?# Y
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hr = m_pDisp->Invoke(
W1 k5 ~2 X: q# h4 ]2 w ^1 y pokeID,
' l% s; n/ F) }6 ~& Q IID_NULL,9 J/ ?0 ?: V6 {5 a% z+ ]
LOCALE_SYSTEM_DEFAULT,- t! l Q/ ]5 F# p0 p( b
DISPATCH_METHOD,6 e. ~, I7 V3 @- F: \! o
&dp,
6 s# w& R2 w h6 G NULL,& w9 i0 `, j& e4 |
&ei,
" y% V" o& a: I" v7 { &uiErr);
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! f7 i* x: @# h8 r4 U4 _$ m SysFreeString(topicStr);5 T# w% Y% q, P
SysFreeString(itemStr);- j+ E; B2 Y2 K7 |8 C
SysFreeString(valueStr);/ A$ w$ l( u# y/ d N& i# T9 z
$ A* Y j C: k2 U; V
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???
, c2 T# ^( {! ]0 b& l9 m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????5 X7 r" b; E1 p; \- K# `
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) y+ s# Y, b5 D0 O# D2.这是request的程序* f( U5 s9 l+ {8 P
// Request a value from Extend
* E. d5 {/ h$ Z& {) h$ h//
* y5 @8 n9 b$ r4 M# q( c// Initialize the variant that will hold the BSTR. Set the variant's4 ?7 D+ ^- ]- K- {- E0 N( E
// type flag to indicate the fact that this variant holds a BSTR. Place the# z$ v, F2 J- h. `5 k, \+ B [
// BSTR into the variant structure.! ?: x; {1 A1 D
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* K, ?& b/ x2 X# T- f! r+ r
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
* i. u3 A/ U# R3 e VariantInit(&requestVariant[0]);
! H9 K% q r) @9 Q' K requestVariant[0].vt = VT_BSTR;7 r, j1 e4 p% [ t
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");0 X; Z0 L$ k" k
VariantInit(&requestVariant[1]); ) Y) e, R3 r& J& X/ \+ `; v
requestVariant[1].vt = VT_BSTR;
3 I! x& ]! ^2 M requestVariant[1].bstrVal = topicStr;2 o) c, P8 r7 Z
# i* A6 e7 h0 c
// Set the DISPPARAMS structure that holds the variant. A3 |8 A% n8 }9 f* ?+ V+ i5 {
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dp2.rgvarg = requestVariant;
- Q6 { L$ w4 e2 w' {& \ dp2.cArgs = 2;
# Y5 p1 B0 q W" @- | dp2.rgdispidNamedArgs = NULL;6 R+ X, n, C5 }7 y
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;
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* z8 J/ S6 G4 Z3 H// Call IDispatch::Invoke()% p |& O+ I8 i* H1 D
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hr = m_pDisp->Invoke(
- S3 r- M) L; A2 Y& Y% p: ] requestID,
* v5 s( G% V) H# x, t( \' J IID_NULL,
! h0 X( L. r8 H- k& _4 ]! U LOCALE_SYSTEM_DEFAULT,3 O! T4 I3 ? E. A
DISPATCH_METHOD,3 l. ^5 m- O' P2 p7 @6 y% e9 o
&dp2,0 {0 B% r4 V" Z# M
&var,/ M9 W, |4 P6 |$ _- f/ {% \4 l
&ei,
. U S) l9 ]( m$ @2 x Y9 S0 ~$ @# E &uiErr);
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SysFreeString(topicStr);
0 {' P7 q& u+ i; A4 |- I2 v* ? SysFreeString(itemStr);6 W) C5 v0 S7 n4 _" _/ S
请问该程序是获得extend里面的哪个值?7 P& I# Y# K" o" X+ Q- O
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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