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:* D% l2 Q6 _6 i" ^* E9 i
Name = (WCHAR *) L"Poke";5 y% M9 A4 A% Q
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hr = m_pDisp->GetIDsOfNames ( 6 l% c& s. ]# W) N% h. a8 o IID_NULL, // reserved 2 L8 V5 }6 g/ y- K0 g& C `( G &Name, // Array of names to get IDs for $ g" e7 Z5 l% k" t. k5 a 1, // # of names in the array 4 M6 K' D p0 Z- q3 O7 @ LOCALE_SYSTEM_DEFAULT, // System locale 5 a8 }5 O, n/ X9 G. D$ I3 p W &pokeID); // Array of IDs to fill on output : v2 C* |( I* e. Y! r 4 p7 G6 N/ \5 b' w
if (hr) 3 K. r) }+ [/ p$ g/ ] _ { % K5 }9 z1 x r( o x MessageBox ("Get Poke Unsuccessful"); $ o% O/ |/ D4 j' R0 n% i return; $ q+ f+ X) h% I* {! N3 M: p, m5 s- S }$ R) p8 O [, ?& o+ s2 T4 r' ^( K
4 U8 O. R% o* K; h* k9 M+ K/**************************传递数据给extend**************************************/1 V; W8 L' P- G k4 h) {) A0 v
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, n) L' N8 q) @* Q6 O w2 O. }
2 u* X6 Z' N1 O' T. X' `/ @: \2 U& _ valueStr = SysAllocString((WCHAR *) L"1232"); : n, M. X+ P# e5 q, T VariantInit(&pokeVariant[0]); 0 a! `" N! c' Z& d7 ^
pokeVariant[0].vt = VT_BSTR;# \- T; a" z; Y, `) r
pokeVariant[0].bstrVal = valueStr; % z3 m4 o! N7 A( ?4 c; ] P& H 6 b% _ R2 d; L, l8 D" _9 E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & g6 K$ n( `; b; [- e VariantInit(&pokeVariant[1]); 5 u$ Q- u4 W% Y pokeVariant[1].vt = VT_BSTR; ! }0 @3 @/ h1 L. e3 p& M6 N* ^ pokeVariant[1].bstrVal = itemStr;3 I, f5 }, ?1 w
2 l6 W. r0 Q/ T$ i' H4 E6 w* ` topicStr = SysAllocString((WCHAR *) L"system"); : ?3 r. B1 a f6 Z VariantInit(&pokeVariant[2]); ' ]- O2 p$ L6 o# Q
pokeVariant[2].vt = VT_BSTR;% G* v( ~5 e/ i/ ]$ @
pokeVariant[2].bstrVal = topicStr; % _+ V" Z% L& A) \6 R5 O+ b % H2 f& @8 I* D* A9 r( ]4 f! w' r S3 p, f// Set the DISPPARAMS structure that holds the variant.2 }3 d( O5 E j( Y6 Z
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dp.rgvarg = pokeVariant;! i) F0 f% Z d; e# d8 ^; U
dp.cArgs = 3;- j1 ]( s" D2 {) Y" w# w+ @3 l" F
dp.rgdispidNamedArgs = NULL;. E. N; K$ _$ d0 n# h. g8 _
dp.cNamedArgs = 0; 8 Q/ W% Y v* a, M e4 t / `( ]4 Z) T, A: B// Call IDispatch::Invoke()0 ^/ q9 {1 J4 v$ O* m& _: @' n$ |
! z0 I; h8 S$ {+ x8 ?% Z hr = m_pDisp->Invoke( 4 ]" D6 W* |" w/ F/ Z! q: J pokeID,( O2 |9 {$ e9 S3 k
IID_NULL, & F, l Q T2 Q* o LOCALE_SYSTEM_DEFAULT, C4 \. U6 f' ~2 a DISPATCH_METHOD, 9 v& |- y3 H. P! b &dp,7 p* J+ C8 m( Z/ L
NULL, ; k9 @0 b- t! e, ?1 W" m& ?4 n6 ] &ei,6 w* \* m: b8 N% p0 [! v2 ^
&uiErr); C% s& h' r6 X4 R8 u% a R! k C6 E7 R6 b
SysFreeString(topicStr); ' G% z! j5 m( o9 i9 M SysFreeString(itemStr); ) \9 q2 `; W) d& u SysFreeString(valueStr); 0 ^7 _, H; z' H& {( F0 b" w0 K! P6 P1 [& s& I! E9 V7 ?& p7 w
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??? + F% H; l* ^" G. E. T+ Q8 T: t/ a! E+ f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???? . }0 d, U' b6 Y2 S( r , Z; t+ Z' }* b0 V/ F' P/ O" Y$ {( I5 G1 K# ~+ O# D8 J
2.这是request的程序 - V; N. h2 R7 \// Request a value from Extend7 i7 ]2 L2 y, g; i1 J0 p+ z+ |
// 7 x* B& T# e$ V// Initialize the variant that will hold the BSTR. Set the variant's & t+ w; V% ~! f// type flag to indicate the fact that this variant holds a BSTR. Place the9 ?9 `# g, g9 \
// BSTR into the variant structure.0 Z% B9 j, M# x# ~# F! Y9 p% n
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);" f' Z# x3 M' |1 i5 @1 j
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% @5 M- n t e4 |
VariantInit(&requestVariant[0]); S8 {6 q0 p) S/ Z* W requestVariant[0].vt = VT_BSTR;2 f' I& J( w5 v
requestVariant[0].bstrVal = itemStr;2 s' ~, @4 `; x0 G
8 v( y5 d; o* Z* Z. a" O8 P8 V topicStr = SysAllocString((WCHAR *) L"system");# E- u( @6 t- c1 E1 @) b2 c, `4 j) r
VariantInit(&requestVariant[1]); 4 }. o' P/ s, ~# j1 E6 q0 d F; V/ R requestVariant[1].vt = VT_BSTR; % Q6 q. n& U+ r8 K requestVariant[1].bstrVal = topicStr;' w5 G9 W( R) { L% }
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// Set the DISPPARAMS structure that holds the variant. & k1 `- ]& _6 Z6 v. ?" L8 c& q3 G
dp2.rgvarg = requestVariant;1 D4 V' Q; ]+ r" t) T
dp2.cArgs = 2;% g! ?7 ~# i7 h# H
dp2.rgdispidNamedArgs = NULL; # @3 x" q: p) {7 V3 W dp2.cNamedArgs = 0;4 t0 S5 Q( }6 s% l% x1 n
1 ~* `% y. w% l8 v var.vt = VT_EMPTY; & _3 q1 s& R X9 Q9 P9 X/ n2 H: @. d# P. S8 e% W
// Call IDispatch::Invoke()/ R' r- D% W8 ~7 S( E2 s+ d+ C: L
@+ L- `4 S) w1 X hr = m_pDisp->Invoke(* l* M. _) c+ t& [
requestID, ' E; T K$ G! t- @! e& U IID_NULL,+ q# u0 E/ s$ B+ Y i" Z" d8 _) Q
LOCALE_SYSTEM_DEFAULT, , e8 j' h1 z4 \ k' m" _6 T DISPATCH_METHOD,) l7 |" t1 V0 M. B: I
&dp2, ( C9 V/ S- Q% j &var,7 N! H- a9 g& @7 p( l9 W
&ei,# W B% A. o6 m* D
&uiErr);0 o6 M2 g, d. j q. E+ e
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SysFreeString(topicStr); / ?* f+ |) o8 S; y SysFreeString(itemStr); 4 P; B) ^5 B, \0 v! J请问该程序是获得extend里面的哪个值?9 p5 D; n+ _" k9 Z0 @) w/ Z! Y6 K
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????