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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:! F" E3 P) R+ p
Name = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (
/ i/ Q+ q2 F& t- P& E8 a3 }. q IID_NULL, // reserved5 l! t: Y; P( H& ~! |! ` v. S
&Name, // Array of names to get IDs for) f; }. c! M) M
1, // # of names in the array" [7 R# x9 H$ Y/ p' G6 `% d
LOCALE_SYSTEM_DEFAULT, // System locale
: F/ W# [2 ^" @+ q. J( `% G &pokeID); // Array of IDs to fill on output
e& }1 {! x, B6 B# ?
% k4 {9 [/ Q5 o% n3 U if (hr)' h( g: i; k, l$ t/ i8 D; J6 V; H
{
7 V5 Z3 A4 Y7 [1 t8 @9 e MessageBox ("Get Poke Unsuccessful");! V$ p/ I1 z* p
return;
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/**************************传递数据给extend**************************************/
) G6 E" C0 J! D( Y& m, ] pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);2 w% l( O5 |9 V5 s
+ F. g. [' ?/ i# z) d. ]* P valueStr = SysAllocString((WCHAR *) L"1232");9 b, y- v2 t* {3 {) _4 k- x
VariantInit(&pokeVariant[0]);
* D6 I9 g, l/ J5 \$ m& y* M4 h pokeVariant[0].vt = VT_BSTR;
4 o1 P/ z5 v/ b( ]) R: B' } pokeVariant[0].bstrVal = valueStr;: M1 ]% p* Q& Z4 F6 ~( W" x" c
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) o4 k- K6 i8 t; G
VariantInit(&pokeVariant[1]); * }; b1 w7 X* Y* C' H2 y
pokeVariant[1].vt = VT_BSTR;
5 b! C% E; L/ s- X7 M% ] pokeVariant[1].bstrVal = itemStr;* U t# c) v# C6 b) w
4 W: l5 d" h7 b' f5 A1 b' M topicStr = SysAllocString((WCHAR *) L"system");; ]7 a( T9 \8 e( C* p$ F; g
VariantInit(&pokeVariant[2]);
k/ ]" I! H1 K9 F- | pokeVariant[2].vt = VT_BSTR;
/ R# N" q3 l% b$ u( D3 b pokeVariant[2].bstrVal = topicStr;6 H/ D; ]# C. O' Z3 \
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// Set the DISPPARAMS structure that holds the variant.* M* q# |6 V$ g L; t3 ~% B
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dp.rgvarg = pokeVariant;0 g9 {" N- Z# a( K- k. k
dp.cArgs = 3;0 h6 t c' W1 M; d; n
dp.rgdispidNamedArgs = NULL;
+ h4 H2 V. R/ u3 C; k dp.cNamedArgs = 0;( H! v5 |+ J9 x, K4 Q
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// Call IDispatch::Invoke()3 A1 k, T% f8 u8 t, I
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hr = m_pDisp->Invoke(& \* K- a, `( T1 H; r
pokeID,
" y2 i7 Y0 j; c& k IID_NULL,0 @) Q6 S1 J$ R) l6 s8 z' ^
LOCALE_SYSTEM_DEFAULT,
, T; Q2 n1 Y1 [0 g1 C+ {& @ DISPATCH_METHOD,; [; h/ a% l$ z5 o1 f
&dp,
D! d S. o9 n/ Y# _ NULL,# T2 b& i& ~# ]2 `+ i
&ei,
$ [8 l0 k/ u+ h; E( ~' W &uiErr); W7 A7 R5 ?( ~% B! H7 Q
5 T: ^6 \% {$ x' ]' f SysFreeString(topicStr);
! P, k9 f! L+ D SysFreeString(itemStr);
3 C' T6 ], Z5 H# `% c9 p! A SysFreeString(valueStr);1 G7 F) J, b. [. Y' O& n& O
& \7 V7 |0 T0 h- A+ W) P7 |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???# x- y) u3 ]0 E; V( ?
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???? ~- I' Y H# c- H
! o5 u# r* O8 f, \, @9 c. O& q8 n w( ~5 M6 }. Z$ w
2.这是request的程序
. K0 D ?8 L3 r& k// Request a value from Extend
3 b! g6 r3 H6 ]//
* g1 j4 a9 X! k; w// Initialize the variant that will hold the BSTR. Set the variant's
2 v& b9 c$ t2 Y' h7 F4 \// type flag to indicate the fact that this variant holds a BSTR. Place the+ K' H! K/ f* e- z
// BSTR into the variant structure., Y$ y) o, |# N6 N3 F* I( L
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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4 s+ X u& b$ x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 ]) Y$ e6 Q' c! e- `
VariantInit(&requestVariant[0]); 8 U, i! K. b5 i- j2 R4 {
requestVariant[0].vt = VT_BSTR;
2 l3 s }9 q3 I4 p4 t9 N5 }. V& |( R6 c requestVariant[0].bstrVal = itemStr;. d5 Q* R f! q7 K
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topicStr = SysAllocString((WCHAR *) L"system");/ k5 ]& I) B7 _: w6 C9 B3 j
VariantInit(&requestVariant[1]); ! H8 b, _% |& n. W# [
requestVariant[1].vt = VT_BSTR;
. }4 X5 C1 j' u0 c0 A6 B3 L( { requestVariant[1].bstrVal = topicStr; r/ G) O% g }+ p& j
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// Set the DISPPARAMS structure that holds the variant.2 | R% k9 y) ~. z
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dp2.rgvarg = requestVariant;+ R0 {/ X+ c/ j
dp2.cArgs = 2;' D( T. j$ \, C, Z
dp2.rgdispidNamedArgs = NULL;
8 M% o5 D5 d( ~4 K+ ]& |0 z dp2.cNamedArgs = 0;
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. ~- f. d7 H3 |+ u var.vt = VT_EMPTY;# v8 B" K: ~5 s
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(- O+ _3 Y2 x* B9 Y- h" G* V5 b8 T
requestID,
# ?/ K. {8 R4 c- P( b IID_NULL,) ~" \% v3 t8 r) m, o
LOCALE_SYSTEM_DEFAULT,: z- E* l, v: X; W1 F
DISPATCH_METHOD,& d. K0 Y+ N& d7 k
&dp2,
) v' r4 w. [7 R) K &var,
/ g- P. {; t. [7 X0 D+ \% m( ? &ei,
" x) n6 @5 r6 N. Q0 u &uiErr);
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& e& c) s- {% I$ \ SysFreeString(topicStr);
( i2 o6 Z) R& J7 e& p SysFreeString(itemStr);, E! _( V2 L2 N) \- r% W
请问该程序是获得extend里面的哪个值?, K5 W, C) B: T8 j
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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