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:5 } F1 _# Q3 A8 E f# G
Name = (WCHAR *) L"Poke"; 6 G+ O1 o3 ]. h9 ? 4 k/ L4 X8 C& v, h c$ R% S hr = m_pDisp->GetIDsOfNames (& @9 Z1 u7 y2 u1 r1 R1 j# h
IID_NULL, // reserved - x3 ~( D( G _0 f" o7 p &Name, // Array of names to get IDs for, |2 k3 u& H2 ~4 J9 O1 q
1, // # of names in the array7 P- r* g6 S1 _& D6 }9 d
LOCALE_SYSTEM_DEFAULT, // System locale 6 u& r3 a, d1 v, l# R( P &pokeID); // Array of IDs to fill on output7 R; Z: G* M# _# }
! i" c4 O- T8 J, e if (hr) 4 G L' p3 h1 T3 K6 `4 ^ {: Q, r1 r4 X% F2 @7 D
MessageBox ("Get Poke Unsuccessful");7 f C; f& k0 d, m+ a
return;3 V9 v2 W" q' i" N* }) Y6 `
} # M: G2 f$ ]% w- s$ b+ v% \$ n$ @. J % O7 a- b/ U2 ? V# f/**************************传递数据给extend**************************************/ 4 x; J* u! {) L pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);( k' a5 [1 e# N# I6 b
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valueStr = SysAllocString((WCHAR *) L"1232");# p( U1 a$ D4 \& }/ E+ E
VariantInit(&pokeVariant[0]); - j; m% p- s6 t1 n pokeVariant[0].vt = VT_BSTR; 2 ?1 z9 i8 c) O K$ ` J pokeVariant[0].bstrVal = valueStr; 4 }4 @! Y6 T: u. w! { 1 X" w; c \7 R3 A itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # p4 p! j5 q5 R2 H3 ~' K VariantInit(&pokeVariant[1]); 0 K; ]" T0 x, P4 Z
pokeVariant[1].vt = VT_BSTR; ! K) }/ t" M7 Y; e pokeVariant[1].bstrVal = itemStr; 0 S3 l7 s- ]& h V" q" r& F2 l2 q9 Y1 H
topicStr = SysAllocString((WCHAR *) L"system");4 t" K0 d2 W- M: C
VariantInit(&pokeVariant[2]); ! M( J* ?* _8 Z7 C; ]4 N
pokeVariant[2].vt = VT_BSTR; E: E b- ~) u+ }
pokeVariant[2].bstrVal = topicStr;: j& k u6 ^7 r1 B4 s
6 r/ l% [4 w% j9 U; {// Set the DISPPARAMS structure that holds the variant.( R- L; _1 v! R; J$ }
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dp.rgvarg = pokeVariant; - o7 X$ J; B x/ Y$ |: I8 x dp.cArgs = 3; ; F" l" f% Y4 M) n3 k dp.rgdispidNamedArgs = NULL;$ u8 R! f' l+ |9 A5 S
dp.cNamedArgs = 0;) B& J. E8 p1 |4 R% i6 o+ u
6 p, }5 n, g$ i8 O, c9 h// Call IDispatch::Invoke()6 x, C6 o, T6 O9 v1 I N" H q5 U
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hr = m_pDisp->Invoke(% ]' x6 U# ?* }. s/ y `
pokeID,& e8 L& |' @9 \3 T8 k# T
IID_NULL, `: b5 c1 `% s* X g- r
LOCALE_SYSTEM_DEFAULT, 5 Y2 ~3 t7 k/ c/ H# P DISPATCH_METHOD, - H5 \$ O+ E1 O. j &dp, ) W& G1 a% O n' _- ^ NULL,! G5 k- Y4 c3 {! `5 b
&ei,. e8 _. l# J7 y) r
&uiErr);$ M" j) T) [1 q9 B; C; g2 i
# g, y1 Q7 s' c9 Y/ P5 _% l
SysFreeString(topicStr);5 v2 e1 q1 w) P. i# R8 C1 s
SysFreeString(itemStr);( l) R* r9 x: g- m! D, y
SysFreeString(valueStr); 7 q0 v. @2 D" D2 }( w5 R; U 0 ~, E: y0 U; A2 L. I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??? . I! x+ z) p' @$ ~0 K7 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????* A# I3 J' F, W
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3 O! F" j8 b( J( T2 p9 R2.这是request的程序 ^8 ~- ~7 d8 Z- U// Request a value from Extend/ _ D' ]9 K$ A4 K4 ~$ B2 C
// ]1 W4 K4 B: |
// Initialize the variant that will hold the BSTR. Set the variant's# u* S( k* O; o& X
// type flag to indicate the fact that this variant holds a BSTR. Place the5 Q% @8 Y$ S ?; z4 B, x
// BSTR into the variant structure. ( E4 E$ q7 J7 Q8 E" u% f5 E* L4 \8 x% m
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 5 h7 I- n+ s4 y+ ?$ _+ ] `. B - A- C, c# k+ ^- C
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 V6 V8 @* d- [( t
VariantInit(&requestVariant[0]); 0 U k7 U U% {# p- S# R% t S requestVariant[0].vt = VT_BSTR;6 j# C+ c* ]+ G# p+ z
requestVariant[0].bstrVal = itemStr; * U1 b' b) [8 [6 I; {! _ ! `& P6 E: }; {9 O( ^& B! i topicStr = SysAllocString((WCHAR *) L"system"); ) V# ^$ K( h6 G: b& Y$ _; ?0 o VariantInit(&requestVariant[1]); % K5 ]/ ?& r8 M) T( K0 F* y1 X" |2 a
requestVariant[1].vt = VT_BSTR; 1 M1 n: n; [& n6 P& e requestVariant[1].bstrVal = topicStr; / D8 F' S3 r) g5 b4 A, [: G' ], y. F7 A5 p
// Set the DISPPARAMS structure that holds the variant.8 c( D( D, v( q. H% E5 E$ e9 E5 I9 C
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dp2.rgvarg = requestVariant;' O: B6 I& k; G+ S- V
dp2.cArgs = 2;7 l( |0 O# X8 \- q
dp2.rgdispidNamedArgs = NULL;: c L4 S! i) x, C/ s9 `
dp2.cNamedArgs = 0;+ V; x( p' [7 c+ d# _
0 k/ S$ X: ]; H* T0 V var.vt = VT_EMPTY;0 _: B4 U8 W* @3 p
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// Call IDispatch::Invoke() X- [( ]* J" H0 I! q+ B3 P# Q9 L9 l) l1 N
hr = m_pDisp->Invoke(& z. ^, i0 X f1 C' w1 Y* J9 G
requestID,* N1 }. m E& ?" q
IID_NULL,! ~. B$ K0 o7 V& T: K
LOCALE_SYSTEM_DEFAULT, W& [: }! J# K- t; W
DISPATCH_METHOD, % b) f' i) v: U &dp2,4 e5 W# ~% g) |1 H1 ? G/ |
&var, & u4 H/ Q$ M/ l: |" R &ei,7 ^5 ]+ r$ B1 |( m7 M8 ~& E
&uiErr); # q6 ~% P( _4 r9 u) b0 }4 v0 I7 u4 z2 L% y5 P* Y
SysFreeString(topicStr); - }! `6 G+ g5 ] m2 h3 ]! Y0 m SysFreeString(itemStr);- L. J5 v+ ~+ G
请问该程序是获得extend里面的哪个值?8 C2 ~; m" q8 ~$ ]3 F: B
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????