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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:$ _& D# @& n) ^* r" i
Name = (WCHAR *) L"Poke";
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; N+ I) y& r7 _" z% \3 {% t; { hr = m_pDisp->GetIDsOfNames (5 R- w: A" m7 ^1 @. O* F* n
IID_NULL, // reserved
1 Y' c3 y! o4 ?6 d, T &Name, // Array of names to get IDs for1 l8 u1 s$ u& \ @( i3 P
1, // # of names in the array
+ L) _1 i6 @! ]; n; ^( N2 X4 N LOCALE_SYSTEM_DEFAULT, // System locale+ {4 [! W5 n3 F3 _
&pokeID); // Array of IDs to fill on output$ B, P; ^$ q3 D! ]* c
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if (hr)" P; l' U# S0 T4 R4 Q: r; U: D
{
6 @1 x- t/ F. O MessageBox ("Get Poke Unsuccessful");; V$ i2 s% `# r7 G% Z6 o2 H$ j
return;
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/**************************传递数据给extend**************************************/
$ t1 ^( {- i: Q9 ^5 F pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");
4 D0 R$ y& Q: @6 w" G, c VariantInit(&pokeVariant[0]); " q* E. \, F. {, d- C! c6 v
pokeVariant[0].vt = VT_BSTR;% w% u# @0 c0 Q! S; r+ J3 D. q
pokeVariant[0].bstrVal = valueStr;
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$ t: _! E8 o! z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: T& y, \8 \+ l6 g m; {) h
VariantInit(&pokeVariant[1]); * f) w9 [' H5 I8 }5 D( f0 @
pokeVariant[1].vt = VT_BSTR;
1 Y' \* R: [- I5 s; {2 r- e pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");8 | F' {# f; @- K4 R6 V
VariantInit(&pokeVariant[2]);
: b) [, N' u6 }! ^/ U7 q pokeVariant[2].vt = VT_BSTR;. ^ L# \0 A( [0 I5 ~" Q& U- B: R
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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2 l2 ]3 d3 c) s$ p! f7 f2 C8 A2 z dp.rgvarg = pokeVariant;+ C, x6 b; ~+ m ^7 i2 f3 q
dp.cArgs = 3;; S7 N- C, [! A* p( ^
dp.rgdispidNamedArgs = NULL;* ^' O8 w. ^+ t7 q
dp.cNamedArgs = 0;
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: ^+ p( Z: Q- v; y6 X0 O) |// Call IDispatch::Invoke()3 t% i- j4 Y6 ^8 K# Y2 O
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hr = m_pDisp->Invoke(2 N) k! D# o0 h( t
pokeID,
0 g7 V4 m# K, e3 V' Q6 w0 e IID_NULL,# o( ?8 y' c* u9 a$ K
LOCALE_SYSTEM_DEFAULT,
% M# t7 ~2 |8 f2 R DISPATCH_METHOD,1 D( \* X7 P' ]
&dp,
, a# |4 R1 x- m% i- V NULL,
4 c0 x F: o f( m. k2 m, ~$ F( ] &ei,
. |4 O& J8 K) S" M &uiErr);
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0 n$ I& w8 V1 ^' r5 I& j1 |. G/ \; t SysFreeString(topicStr);/ l' E, f$ ^, i4 Y
SysFreeString(itemStr);5 I4 x- Q3 E+ L
SysFreeString(valueStr);
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! {$ k# S ?, p4 c. [ B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???
" E: O: k+ L; N7 Q) I5 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????7 C- Z) J! _4 ^! y, {
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$ j$ T( H. Q, y$ O- O8 ~ c2.这是request的程序
( l$ X( J2 Y7 c+ o% Y. {// Request a value from Extend: k8 F; q4 B$ `4 M5 N* ?4 Z
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// Initialize the variant that will hold the BSTR. Set the variant's9 b/ ?3 p" Z. P. D! P9 p0 f2 I" x
// type flag to indicate the fact that this variant holds a BSTR. Place the
( \! Q+ L7 o) S+ D2 d/ k, O// BSTR into the variant structure.8 n4 p4 P6 w' K! i. ~3 ~
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- K7 ^) Z- z! I! @
VariantInit(&requestVariant[0]);
) @1 l9 Z+ F7 \. ^ requestVariant[0].vt = VT_BSTR;+ J, D5 @3 O1 w2 E. N
requestVariant[0].bstrVal = itemStr;& G9 s' T- _9 r: O/ P& [
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topicStr = SysAllocString((WCHAR *) L"system");
2 V1 U0 {# g+ Y) P VariantInit(&requestVariant[1]);
- J6 J8 q5 |5 M requestVariant[1].vt = VT_BSTR;
3 [* g8 H8 v; b0 x: ?8 z9 v requestVariant[1].bstrVal = topicStr;" D, l( Y5 `* w6 o
8 \; ^3 v" X t2 h* J) r8 C: D& a4 n// Set the DISPPARAMS structure that holds the variant.
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2 c7 H# S" ?) {$ M dp2.rgvarg = requestVariant;
; g& H8 f c5 K' p# j3 a: m1 f8 W dp2.cArgs = 2;
% ~& _5 p, m+ \: N& i dp2.rgdispidNamedArgs = NULL;
' \" I( C) a# y( | dp2.cNamedArgs = 0;" m4 s2 r R& _9 W
+ k4 j$ M% z! ^9 B3 V1 { var.vt = VT_EMPTY;; n4 k& {1 m7 R6 x9 {6 o; d! O" V
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// Call IDispatch::Invoke()
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) ~' {, o2 m3 N1 K hr = m_pDisp->Invoke(1 w$ Y: S* O9 ~- _$ l" z; {" B3 I7 y
requestID,
7 s5 M3 f' h2 |' } X9 V2 w IID_NULL,; H7 P! }5 F w% s& m$ M1 z' K
LOCALE_SYSTEM_DEFAULT,+ I( w/ q( R7 V* w
DISPATCH_METHOD,
3 J0 C. b& j" ~" k- l4 M &dp2,
2 W$ v/ M3 m0 H6 _) U- ? &var,
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&uiErr);/ `. l4 l- c6 z: K4 C' f
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SysFreeString(topicStr);
' O: v% d2 I4 d; } SysFreeString(itemStr);
& ^" c* c; S4 t3 C( R5 ^请问该程序是获得extend里面的哪个值?
" z; J0 X- I4 c! Y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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