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:0 r( c' \1 k, Q2 {4 I& M0 j2 L5 h. e
Name = (WCHAR *) L"Poke"; 8 ~7 K x/ s$ K . }1 l1 O4 S. ^& T3 P3 P hr = m_pDisp->GetIDsOfNames (1 B' \( v6 ^# C) Y) z1 P+ c
IID_NULL, // reserved7 H7 h) W. a5 j* ^# Z' V5 m& ?5 Y
&Name, // Array of names to get IDs for ! x# t+ g2 u; O8 o& O4 A 1, // # of names in the array 3 ]% c' e" T6 H" G o LOCALE_SYSTEM_DEFAULT, // System locale 6 {3 Q% I0 o# y4 ^( |# A &pokeID); // Array of IDs to fill on output d5 M5 X, n g0 d1 } $ P0 Z) I7 p4 g. e8 N if (hr)# E4 q6 o. _/ m
{ ) b, L* t/ T! G6 S3 [4 k) q MessageBox ("Get Poke Unsuccessful"); / G) e+ m1 ]* `! p return;2 Y* S! d$ `6 H- V' i+ z) l; V5 I
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/**************************传递数据给extend**************************************/ , |2 u) O/ r4 b. s pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); & U" p3 C s0 V ' h) \# h8 c; k% D valueStr = SysAllocString((WCHAR *) L"1232");; f. U. c; Y" g D6 U( ?
VariantInit(&pokeVariant[0]); + {* W% d4 s) K( a6 B! J6 i pokeVariant[0].vt = VT_BSTR; 3 M( u7 p8 T8 f' {3 V. j, x1 l+ y pokeVariant[0].bstrVal = valueStr;( b9 l ?+ h! {1 c; K( |5 \" T
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , I U/ u+ o+ L& W. ~6 k: } VariantInit(&pokeVariant[1]); 2 x" X$ Q& f, ^* o: q4 q. ^9 v pokeVariant[1].vt = VT_BSTR; ! s3 A; B, P2 f/ [ pokeVariant[1].bstrVal = itemStr;6 M$ Z" N. i" h+ B: L ~; g
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topicStr = SysAllocString((WCHAR *) L"system"); - s! u( V$ {# ]' v VariantInit(&pokeVariant[2]); 0 l6 L4 Z; [7 n
pokeVariant[2].vt = VT_BSTR; $ B2 D( a" e! ?- ~3 u( z pokeVariant[2].bstrVal = topicStr; W3 c# \6 K3 R1 k+ ] m+ p; h* t. d) q1 o ?5 C; y// Set the DISPPARAMS structure that holds the variant./ z" x, n3 h1 g& s* o
1 O6 X2 w7 t1 Q9 k: ?. ^* W dp.rgvarg = pokeVariant; N( H5 F" E# O, C) ^- R dp.cArgs = 3; ; |. _5 x! W- b- y dp.rgdispidNamedArgs = NULL; ) C3 L( n0 X5 [+ L* Q+ ~7 j dp.cNamedArgs = 0; 0 V" ^, V: s5 P3 ]0 w1 s& E _) u8 J! d o" M( f4 K// Call IDispatch::Invoke()/ S: q7 i; v; o1 u
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hr = m_pDisp->Invoke(! S \' P/ E1 r7 m
pokeID,- z( r8 h! k* Z6 h/ Y. G" C% G
IID_NULL,9 x2 w+ A" |; A$ n$ U, N, U
LOCALE_SYSTEM_DEFAULT, 7 n, h; ~% H1 d4 T DISPATCH_METHOD, 3 h, b2 X# E: |8 T6 @: G &dp, ! O' P' P8 C3 Y1 [/ f NULL, . r0 a/ \3 f5 w# X &ei,$ P0 O; f% w p! l
&uiErr);& E2 r) T# p+ W$ b7 W. Y X
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SysFreeString(topicStr); - w! I4 \, w9 e3 P SysFreeString(itemStr); 8 `6 x9 |5 Q& y T7 P" D) Z SysFreeString(valueStr);. B8 e- @. y+ l4 D4 V
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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 V3 ~" l( v, r7 d2 \
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????( v2 M0 \- A+ ]4 [/ }, t( u
/ o' O) i X+ F& K6 d- @( h5 I " ^0 b0 c5 n5 L* G8 s/ o# N+ s5 Q2.这是request的程序 , ^4 o0 C2 p( M8 f/ d8 H, Y// Request a value from Extend/ U( m8 q- O# U; L! T# ?
//+ g$ O ?+ |( A9 ~
// Initialize the variant that will hold the BSTR. Set the variant's$ H, H* c, [$ l( I- k8 r9 z
// type flag to indicate the fact that this variant holds a BSTR. Place the- T, j# U$ m4 I+ x: U6 \$ d6 C5 n4 a5 R
// BSTR into the variant structure. : ]5 A6 U6 M- y+ `7 H ' V- ^/ f7 L `6 H. h* J2 {) R requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 O$ N2 P+ U/ p( o% X
% t/ t) N* k# a7 \/ n8 ]3 k5 ] itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! ` L/ f. D% t% H3 C5 M" n- z! w VariantInit(&requestVariant[0]); 5 x6 J, h) c( j. t
requestVariant[0].vt = VT_BSTR; ' p0 r. W3 }; l6 c, L. }. t/ b requestVariant[0].bstrVal = itemStr; * J. i6 m& B' R. M! J* y2 \+ l . L/ F" L) J. H, v topicStr = SysAllocString((WCHAR *) L"system");) H/ z- b4 A1 D9 f8 N
VariantInit(&requestVariant[1]); . U. ~5 W S |# B
requestVariant[1].vt = VT_BSTR; , j0 W$ q+ b* n; [; @4 N requestVariant[1].bstrVal = topicStr; + E7 V/ f5 s& @3 ~ 0 ], R. V: T; ?4 L* y3 J2 M$ l// Set the DISPPARAMS structure that holds the variant.+ b9 u2 \7 Z0 M5 j; L
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dp2.rgvarg = requestVariant; % S7 h" i' s3 [3 O2 f' g7 k dp2.cArgs = 2; . ^, j/ L: `9 _+ N* ? V) x" F! I# j dp2.rgdispidNamedArgs = NULL; , j( i8 k9 Y }4 A( G5 M dp2.cNamedArgs = 0; 8 @" j& e7 \1 P$ h 8 A4 j" [/ T {- ^0 w$ } var.vt = VT_EMPTY;6 v8 l6 A$ s1 P! @" K$ x, \( z