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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：7 x3 m! |/ M, M7 ~& X, G) P3 Y7 k
Name = (WCHAR *) L"Poke";
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' T/ m, E7 [' E, i( x hr = m_pDisp->GetIDsOfNames (7 M" _/ t% V+ w4 a
IID_NULL, // reserved, p/ ?" J6 m5 L _: E9 R
&Name, // Array of names to get IDs for2 y$ i6 q& q: {3 y1 v( t5 ], }
1, // # of names in the array
% M# J' n# I6 l5 S: a& l: o LOCALE_SYSTEM_DEFAULT, // System locale* d u; m: X; y
&pokeID); // Array of IDs to fill on output
. [" f/ k& s4 K% P& D $ R2 @& g: u' B9 t; V" M3 I6 A
if (hr)8 T# B. o+ @6 I; A. P, [1 P
{
/ e% A G, M$ M1 C3 @7 p8 _( W MessageBox ("Get Poke Unsuccessful");2 I5 s3 \5 {- j3 w/ k- c7 m
return;
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/**************************传递数据给extend**************************************/# t2 r3 E( l' d3 X. k$ o
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ \5 R4 z. @5 M' y9 n
+ Y3 v" F6 T8 w5 M x valueStr = SysAllocString((WCHAR *) L"1232");
% _1 i* Y. O" e, r) q0 j! k VariantInit(&pokeVariant[0]); % Y& W$ d, X: a( l* ?$ Z
pokeVariant[0].vt = VT_BSTR;
, M* t: u" @& w pokeVariant[0].bstrVal = valueStr;
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: f2 W$ P5 {6 L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
' E! I1 G" S! D+ Y+ O' j: N3 A VariantInit(&pokeVariant[1]);
' q- U; X; }7 n; J5 G( W pokeVariant[1].vt = VT_BSTR;3 _7 i5 j' f) @8 F. @5 s" M6 `( U
pokeVariant[1].bstrVal = itemStr;
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- b1 }, ?/ X) i topicStr = SysAllocString((WCHAR *) L"system");
& m+ z5 `' h# ]( S0 r VariantInit(&pokeVariant[2]);
# ~$ M1 z! j5 T' r& D5 W, r pokeVariant[2].vt = VT_BSTR;
. s* G( s, b; N5 i& p pokeVariant[2].bstrVal = topicStr;5 C6 P' ?8 |/ s M$ s8 W8 z6 C
# d' @1 j8 r, }/ \// Set the DISPPARAMS structure that holds the variant.
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1 C* n6 K/ ] B3 {9 l& a/ _- U; z dp.rgvarg = pokeVariant;7 y1 z9 M+ ?- N6 ^$ L8 O# v5 ?: A% ]1 A
dp.cArgs = 3;# H. R, k, b% @5 j3 f9 n
dp.rgdispidNamedArgs = NULL;
% c3 A7 c; b1 Y* ~, V) G dp.cNamedArgs = 0;9 f9 ?" _7 `; d
. R' D4 Y2 n+ k) \; _
// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(* x9 |2 Z8 e3 ]
pokeID,6 P) B% B4 R; S1 H0 v
IID_NULL,7 \- V- }. [! l, A8 d& [0 ?& e {2 `
LOCALE_SYSTEM_DEFAULT,( q# I- x0 U' k9 u8 e4 }4 x
DISPATCH_METHOD,
" r2 v5 f6 T7 w: _( ~2 Q &dp,4 e4 w7 H( g" _9 o
NULL,
" b6 \$ F6 T0 e! R% J5 R( f$ O &ei,
! _% Z# X2 [& ?5 y& f0 L &uiErr);
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SysFreeString(topicStr);7 } b) B7 O5 U5 X8 S- d4 y
SysFreeString(itemStr);* w; m' r ]1 [( P5 }
SysFreeString(valueStr);
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; C" Q5 I' W8 R& g1 o# |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？？？
7 g( j& A3 x( R$ t8 y t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？？？？ t' l6 Y- Q: p& ]. Z
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2.这是request的程序: p& x; e5 P7 a u/ S6 D
// Request a value from Extend3 y {, P, h, ]6 \1 B
//" a) Q3 J5 ^; _4 K5 g& }9 A
// Initialize the variant that will hold the BSTR. Set the variant's
, O/ O1 x* c& L5 _( G* S// type flag to indicate the fact that this variant holds a BSTR. Place the+ P! M0 E- y% k
// BSTR into the variant structure.2 r) ~3 p' }7 Y, {1 E+ l- z2 Z
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 t6 H$ M( g5 D4 r! P
6 n9 a) p3 P5 j X' i) r' a itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. f: i$ X: d7 A' d4 }& W
VariantInit(&requestVariant[0]); % y6 s% E( O0 E
requestVariant[0].vt = VT_BSTR;
6 Z1 |+ t, B: Y requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");4 g. B2 M3 H7 n. c
VariantInit(&requestVariant[1]);
2 |; o; d* Q+ @) d- f( y7 R* b requestVariant[1].vt = VT_BSTR;
6 X. C7 m: D9 y5 L7 N( k3 K- U requestVariant[1].bstrVal = topicStr;1 m- a3 a3 L, C( x3 d# K
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// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;. g- E4 v* {' M5 r. R
dp2.cArgs = 2;% @/ L' U5 H! |! r7 M
dp2.rgdispidNamedArgs = NULL;
. Q$ I6 z) e! g. w0 @( v dp2.cNamedArgs = 0;! w. r! Q+ N/ q! ~
+ `9 y) d# n8 _$ _+ v var.vt = VT_EMPTY;3 D) G1 |# y" Y
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// Call IDispatch::Invoke(), S- s5 K' T) l% t8 h$ @
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hr = m_pDisp->Invoke(
# l3 w4 z: y' B. @" \- E requestID,/ `' `+ b1 J* W5 H, f; @. X2 O
IID_NULL,7 `3 z0 |& C) _4 V
LOCALE_SYSTEM_DEFAULT,
' d5 w: @* ^8 }" ~) x DISPATCH_METHOD,3 W- r$ ~+ e6 T; O# a
&dp2,: D0 x* Y6 k* [
&var,3 ^% S/ \4 f) M/ E+ \
&ei,
8 u9 `$ `' o0 c &uiErr);1 J0 N1 y4 t7 T# g
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SysFreeString(topicStr);
6 v9 ?" ?3 I$ S SysFreeString(itemStr);/ ~' e8 C! ^% L; Q f/ Q
请问该程序是获得extend里面的哪个值？1 q, Y* P a5 d- k) N% Z0 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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发表于 2008-11-25 19:37:03
