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 ?. Z9 ?5 C+ f ~
Name = (WCHAR *) L"Poke"; ; b3 q4 x- C. X6 e8 `8 d 0 H; v5 k9 o) ~3 m) }1 h
hr = m_pDisp->GetIDsOfNames ( . v' j4 D G4 N, m `2 [0 p9 I+ c) v IID_NULL, // reserved 0 k$ _" o/ T# S! u$ V8 @3 {2 ?+ g &Name, // Array of names to get IDs for 0 D3 `, |: T; L/ V+ r 1, // # of names in the array + Z3 R/ N4 R# T3 ~6 N LOCALE_SYSTEM_DEFAULT, // System locale/ z, d8 n" L; E" C' J. {3 W% p
&pokeID); // Array of IDs to fill on output7 V( p) `/ H" }5 x0 \
3 Q+ c2 k$ v* E- d0 H# p if (hr) - v9 ?* h7 e: A2 Q# _6 Q {4 A( T& T& p1 R& c( L1 K+ d3 W
MessageBox ("Get Poke Unsuccessful"); 6 D- f6 g& p4 D4 B" M2 q2 a return;4 D% B' X( C0 ]4 Q, w( Q9 g+ F- e
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/**************************传递数据给extend**************************************/ * `& k( z/ l" R0 {5 m# q pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); , w! q: @% o* s4 F6 r& U 0 t4 K/ k5 X* g2 t7 X5 j3 m valueStr = SysAllocString((WCHAR *) L"1232");* O+ F/ X0 e3 T$ g; `) \
VariantInit(&pokeVariant[0]); # g/ H& L/ X! n: I ?4 I* o. p- ^, [: P; m
pokeVariant[0].vt = VT_BSTR; 6 _8 m% W+ `/ o1 l5 H& J pokeVariant[0].bstrVal = valueStr; Z2 R a0 E+ E" F 0 a, F, p+ c: q6 k1 y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : a) ]3 ?8 e. u+ L! g. l VariantInit(&pokeVariant[1]); % \: B- u# V3 }1 x5 J( Y( @$ y
pokeVariant[1].vt = VT_BSTR; + k3 X+ B) q. w9 g, {1 K. D pokeVariant[1].bstrVal = itemStr; ( Y* C8 C& G4 h7 k- m0 N& S + ~) H& ]' N7 ~3 U8 H& K) ]! T. s. } topicStr = SysAllocString((WCHAR *) L"system"); " `7 J$ c- m3 v6 u VariantInit(&pokeVariant[2]); 3 R7 e9 l6 s9 ^9 m5 X: z
pokeVariant[2].vt = VT_BSTR; & ]4 S8 E) k0 A pokeVariant[2].bstrVal = topicStr;. {6 y5 T) l" T' e
$ o! ~4 m' C5 x// Set the DISPPARAMS structure that holds the variant. " c I9 O8 S/ E+ |% p3 y. o1 v. m7 R; Q/ Q N" [' }
dp.rgvarg = pokeVariant; + M4 a1 \" C% @+ r dp.cArgs = 3;9 M0 u) _) K+ Q) g
dp.rgdispidNamedArgs = NULL;9 |, \' S: Y& R" C
dp.cNamedArgs = 0; & _( U0 G" c/ n4 o z# l$ k7 C: G8 b2 ]
// Call IDispatch::Invoke() l6 i: B$ i" b8 M4 V3 s
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hr = m_pDisp->Invoke( 8 S$ E7 W* h+ \6 @ pokeID,) W5 {- U S0 q/ s
IID_NULL,: w! L' z) s! f8 n0 U5 X4 w; V
LOCALE_SYSTEM_DEFAULT, * e: Q, m* q5 q+ S: x& }. U( t DISPATCH_METHOD, ' _5 M& B! {$ N( ^! L7 O- m &dp,4 \# Y' w. K* I: K" n) I$ z
NULL, & x9 }( Z8 J! z% K. X &ei, 7 j- r+ A; l$ N- @2 Q& t, I &uiErr); / \& l6 _! H$ D( {9 k0 ?8 l$ r3 f6 r1 e c! P+ E2 t/ p1 U
SysFreeString(topicStr);) y8 }. u( g5 d/ e5 C$ J" q u( y2 T
SysFreeString(itemStr); & s: A7 _+ b9 P SysFreeString(valueStr);% k! W: e; N, }1 f. f6 q$ u
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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？？？ 6 `& h, E( [) g" Q p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？？？？ ; a4 F) r& N% @& E8 I 5 @5 k5 ]0 {( L! e* X1 b8 l* j9 d, |
2.这是request的程序 ( ~* a% I" F, @// Request a value from Extend 2 `+ h7 O ]% } E8 U8 ]6 I//4 ?& N, r3 @ p `# B
// Initialize the variant that will hold the BSTR. Set the variant's . \4 e3 W. T Q! v// type flag to indicate the fact that this variant holds a BSTR. Place the x0 {4 H* B) g( \: ]/ D0 _// BSTR into the variant structure. 6 i/ i0 K6 ?/ H1 o, n3 E! L # a* J) N% s6 c b6 k8 _5 a7 T requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' _9 [" K3 r6 q 7 a3 V) ^; U w. t( I$ } itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 w) w9 Y+ |9 q: N$ i. F5 x# |8 l VariantInit(&requestVariant[0]); 1 f0 g x' ~. ^7 y; R* K8 S requestVariant[0].vt = VT_BSTR; 1 X4 n7 K% P m! e J& X4 g requestVariant[0].bstrVal = itemStr; 2 o8 \1 i y2 ^2 B" L2 M+ L( K $ L" _# }( d$ y4 r, O topicStr = SysAllocString((WCHAR *) L"system");, |9 O. m7 ~8 ]& p0 l, Z( K( x
VariantInit(&requestVariant[1]); 9 _1 L! O" V+ E3 I v* I requestVariant[1].vt = VT_BSTR;8 `0 _; ?5 |6 l B/ J/ Y' c
requestVariant[1].bstrVal = topicStr; 8 N# d, S* W4 n7 V 7 ^. |7 ~4 X* J* @# S6 q/ a; ~$ z// Set the DISPPARAMS structure that holds the variant. . g7 j, `' X+ C& B " y( s% ^8 s& C0 f: W dp2.rgvarg = requestVariant;7 I1 U' g9 C* ?! T t# ?7 F
dp2.cArgs = 2;1 _. x* a" L, x# x* X
dp2.rgdispidNamedArgs = NULL; i2 q4 ^& a3 y$ ~3 L0 Y- q
dp2.cNamedArgs = 0;% H. o6 o) I6 b$ s! W6 Z" s
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var.vt = VT_EMPTY; % S- s2 u% c/ i! y8 Z! j8 f6 r1 W5 a6 J+ f' ~: f' \) x7 v
// Call IDispatch::Invoke()8 Y( g! c7 f1 T. N8 u& u
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hr = m_pDisp->Invoke(# n; J) M5 m7 q# J" k, N
requestID, 9 S6 s& A: B( S IID_NULL,, t$ [; b' \- p' J
LOCALE_SYSTEM_DEFAULT, 3 ?9 W% y3 h1 |) Q& ]+ n DISPATCH_METHOD,( E9 t5 r. @# r) |3 B! Y
&dp2,. J5 S* B0 V& f, w* M! @
&var, 6 R1 f) K3 i. B" i; | &ei, 2 V5 k$ @% h S8 O( X8 m; C5 V &uiErr); }- J7 P$ t! J- p4 P: z2 r
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SysFreeString(topicStr);. Q& t. @+ F* M0 T: B( j& F9 Z0 l
SysFreeString(itemStr); ! e6 ]6 h% M5 t2 u8 z请问该程序是获得extend里面的哪个值？ + y0 t9 c! F- R9 ^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？？？？
发表于 2008-11-25 19:37:03
