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:3 ]: m" l) P: ]/ ]0 s7 e: N' H
Name = (WCHAR *) L"Poke"; . v6 N3 j! y5 u0 P2 x ) U- h' s0 I6 j! z" i" G! x
hr = m_pDisp->GetIDsOfNames ( 6 U0 c# l) Z/ O8 W8 F( C IID_NULL, // reserved 0 M; ~0 M l4 O, | &Name, // Array of names to get IDs for5 R/ G9 ?/ M+ H5 C
1, // # of names in the array8 ?1 `5 z9 I. H2 V3 N
LOCALE_SYSTEM_DEFAULT, // System locale( ~1 ^9 K6 m, a+ f
&pokeID); // Array of IDs to fill on output / |7 W: F2 O; R4 \8 \, O ) U2 n' K, N3 r& K8 o/ M if (hr) " @6 j6 _" c! k& R" ` { 8 q8 ? }; G7 l5 |3 y G MessageBox ("Get Poke Unsuccessful"); 0 j* X3 n# K1 L( [% H return;5 } p! T, c# W L
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/**************************传递数据给extend**************************************/- K+ V" Q" r. v$ }/ X1 j9 v, v0 c @; }
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 1 V" z' ?9 O, f! h3 _ 1 @6 m+ o/ A; T% i" a" [; [1 l: } valueStr = SysAllocString((WCHAR *) L"1232"); : k7 h4 D% ~( H' A VariantInit(&pokeVariant[0]); 3 y/ V; ^& o* {+ w pokeVariant[0].vt = VT_BSTR;1 H* t7 ?: E! p6 R, i) _% Y8 H
pokeVariant[0].bstrVal = valueStr; ) j! L3 q" l! |9 M5 ]+ f m1 h ~
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 ~0 ]6 Z* e! q, J2 j& ?2 }8 s4 B VariantInit(&pokeVariant[1]); % R0 |' ?! H5 A- ]
pokeVariant[1].vt = VT_BSTR; ; T' A0 N3 R; u2 t/ G+ @ pokeVariant[1].bstrVal = itemStr;5 e/ L) h* i- M9 S- G7 ^
+ L; i2 E$ v) x1 |( M topicStr = SysAllocString((WCHAR *) L"system");. c6 ?9 K) z* E; Z
VariantInit(&pokeVariant[2]); 0 v0 t3 U: W8 G; l9 T+ p! r pokeVariant[2].vt = VT_BSTR;- B! E5 e4 C2 e+ L2 ?
pokeVariant[2].bstrVal = topicStr;. ^4 E' P& s. y) N" l) x6 W
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// Set the DISPPARAMS structure that holds the variant.0 J( y+ v' s G k+ ^
3 P5 ~* P e& U8 p9 f dp.rgvarg = pokeVariant;0 f" K. ^( @1 H8 |+ G
dp.cArgs = 3; 9 u5 l% D1 b9 ^/ H4 g2 Y0 `6 e2 H dp.rgdispidNamedArgs = NULL; 3 k0 }4 l6 [# u# x dp.cNamedArgs = 0;8 O4 v) i- K$ E* w [- Q( b. E. o4 u
. O. x7 {( a. U% U$ x/ F// Call IDispatch::Invoke() 9 d0 N7 T$ Q A2 q3 t 5 b! J6 U- v7 v& F hr = m_pDisp->Invoke(6 }9 d- M3 p1 i9 w
pokeID, 2 a' x' Z7 K* ] IID_NULL,9 E, D4 k1 j8 ^/ [
LOCALE_SYSTEM_DEFAULT,9 R8 H6 o S9 i ^
DISPATCH_METHOD, ' b+ Z) `: v( n6 A) J7 D &dp, : H9 l: B o6 B! y8 F) b" ^ NULL, ( c; D$ Y6 W( `9 ]4 ` &ei,0 Z0 r# q% b8 A4 K
&uiErr);0 [+ R. {! `0 q9 Q
( S8 `4 u; P5 v& H( @) D3 C SysFreeString(topicStr); 6 w: ]4 X$ R0 E! Q5 H SysFreeString(itemStr); # _3 I& {. T5 _4 @' q& c# K SysFreeString(valueStr); I/ `4 P( M8 T! G; C9 r x6 W
! y2 E0 j/ C, X% s7 m/ {& t% D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??? & ?" d0 N, V; i, x4 o3 |, Z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???? 9 P5 m( E) X$ J$ _0 w ( B# ]5 b1 r: {0 i$ g+ v4 @$ Y & i/ o$ e' L" G1 j5 H2.这是request的程序: I( L4 |. O/ \$ W- K
// Request a value from Extend & g- Y, f( a \; d4 t8 O// , Y6 R p4 w$ d, G% U// Initialize the variant that will hold the BSTR. Set the variant's. e( ^% \- ? X7 h$ }
// type flag to indicate the fact that this variant holds a BSTR. Place the9 m4 \: h5 _) ~2 p" I3 Y4 z9 F
// BSTR into the variant structure.; \$ F9 |: B+ V6 ^, Y" S
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# W! F8 h! r& c
; }7 k7 J8 f& W6 U I itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ r; m. w5 M' D* k2 r. u
VariantInit(&requestVariant[0]); " K) i# X! j! Q2 T
requestVariant[0].vt = VT_BSTR; 2 r$ O* K# x- m! c$ c' O requestVariant[0].bstrVal = itemStr; 3 r7 ~1 H: D( _" z" y* w 5 ~. t a" X. Q8 ~ topicStr = SysAllocString((WCHAR *) L"system");4 ]" ?6 u( a1 I7 D
VariantInit(&requestVariant[1]); 9 R) Y# |8 v! ] H- @- B) |
requestVariant[1].vt = VT_BSTR; # w4 M5 U, W9 R. ?7 d requestVariant[1].bstrVal = topicStr; a% H3 M+ w7 _8 V0 c* M) { 3 g& z% F. u. Q [: G' o// Set the DISPPARAMS structure that holds the variant.& X5 n2 C: i6 j; K9 I w" Y
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dp2.rgvarg = requestVariant;9 S6 D, l a- x8 p8 X
dp2.cArgs = 2;4 P/ H" i9 q1 [$ h2 l, N: H. p+ Q1 i
dp2.rgdispidNamedArgs = NULL;* L4 o# ~3 t0 z. K
dp2.cNamedArgs = 0; & k* X8 T6 K3 M4 f0 @* d / [( T7 z, \: d" z* d2 V var.vt = VT_EMPTY;7 `1 N% h" L7 \7 b& I
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// Call IDispatch::Invoke() x$ X' d; X/ i N- ?8 _- T$ H; m/ V; p1 s+ {# j5 _: m
hr = m_pDisp->Invoke( ( K. q# Z1 \4 W1 K% f4 r" R9 l2 ~ requestID,( T% _; @' H$ c: O4 L; G' y" P
IID_NULL,9 X$ w* @& A3 l1 n
LOCALE_SYSTEM_DEFAULT, 9 L6 B" x E- r. S: A3 ~% C DISPATCH_METHOD,1 o: B8 p- H% e+ |0 ^! d& w9 V- k9 x
&dp2, - N w& k% ]; [# }% U &var, 6 Z% t, k' f+ Y+ B4 a &ei, . V2 N/ S+ M& L# t$ t v &uiErr); 2 ]* H1 `) G, ?3 Q/ D$ F$ e2 I0 `' Y5 U$ I/ ]. D& n
SysFreeString(topicStr); + q! x6 m n1 s SysFreeString(itemStr);; ]9 {) ~8 Z- j2 @7 I) j$ R
请问该程序是获得extend里面的哪个值? # ~, G2 f7 d, t: X) z; }& t9 h( z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????