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: @. M H. ]- U% \. uName = (WCHAR *) L"Poke";- ?" M) j. h! n3 T) N
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hr = m_pDisp->GetIDsOfNames ( ( N% G0 J, [1 T) M: D IID_NULL, // reserved 6 N+ h0 r5 ] E' N &Name, // Array of names to get IDs for 9 w: X- W+ V5 l2 w 1, // # of names in the array5 p# ^! b4 c k4 R6 {
LOCALE_SYSTEM_DEFAULT, // System locale$ R, `+ C, `: V% P. _
&pokeID); // Array of IDs to fill on output( [8 Y7 ]2 {1 d' O. a) F
2 ~ M H! i u, E1 k8 C: s if (hr)& m- \1 y( W8 a- l( b" H D5 N
{ / ~! W8 y, W: U8 }, l, q4 }4 \4 j, Y MessageBox ("Get Poke Unsuccessful"); ( V$ Q+ P( ]2 v9 w return;# X" J( \6 r& L& E% p' q
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/**************************传递数据给extend**************************************/4 W* f2 J. c5 {# F, n9 S
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 I: H- y7 h ?- F/ t v+ o" P4 v" l L$ E
valueStr = SysAllocString((WCHAR *) L"1232"); 0 \0 O& I8 d `8 p( s VariantInit(&pokeVariant[0]); ' Q6 m% o/ w* B8 t& [8 y: b pokeVariant[0].vt = VT_BSTR; " ]5 U) d$ g3 U3 e" H7 @" u pokeVariant[0].bstrVal = valueStr;6 v' u. \6 b6 b; ~% V* I
% h7 W1 L4 d" ~" H) u6 h y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 Q- }9 j I$ M$ u I t! } VariantInit(&pokeVariant[1]); ) n) q5 |8 k- ~" O1 b$ T* f4 e% K! m
pokeVariant[1].vt = VT_BSTR;" I d2 G& C/ c# v2 d9 I- u1 p
pokeVariant[1].bstrVal = itemStr;" b6 T( R( g" U( |4 Q9 u5 e# @9 j0 @
2 b% W Z9 L$ @* { topicStr = SysAllocString((WCHAR *) L"system");" d% E+ s- O5 B8 d0 L, R8 C8 O. q
VariantInit(&pokeVariant[2]); 6 j# P: J9 \$ N4 d pokeVariant[2].vt = VT_BSTR; 8 e, z8 E, c4 M8 u7 o( j pokeVariant[2].bstrVal = topicStr;7 T/ I* x, H/ O; A% o. z
6 ?! H0 ]- c* c) h7 K9 t$ z# ~// Set the DISPPARAMS structure that holds the variant. g& {- ?. U. E 2 R$ J* w. n7 r+ `3 o" g7 n dp.rgvarg = pokeVariant;& F" k+ H" f" A7 v% n! o
dp.cArgs = 3; ; c! D% G" e2 p" s0 W4 U dp.rgdispidNamedArgs = NULL;: X* F4 U; U% l, M$ p, A
dp.cNamedArgs = 0; ; E8 z3 F7 {; B9 ~1 k; c ) A/ ]% }3 ^" L0 ^. A! [// Call IDispatch::Invoke()5 m& U, b" w- f' `8 W* C" y4 }
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hr = m_pDisp->Invoke( 3 L% O2 L. ^% S: Y) X+ R pokeID,4 V' Q" n: `2 p7 T$ F
IID_NULL,3 m1 H; f! F5 Q: N: |+ {% A
LOCALE_SYSTEM_DEFAULT,$ Y7 N# p9 Z* }! f' A
DISPATCH_METHOD, 3 n( V, F* g7 ~ &dp,5 i, N: R1 X" d! Y
NULL,1 Q. O( d. K7 D* t+ o
&ei,, {8 n& _( H4 y& F
&uiErr); % ^, o" g* J# V0 Z* `# s5 o1 J% ^( n6 k2 V+ ?1 t" S2 _/ H) E
SysFreeString(topicStr); ; `- a/ ]- Z& w: F5 E8 c SysFreeString(itemStr);3 C7 E1 K. N$ ?& B
SysFreeString(valueStr); 2 K3 F6 y9 q" C, e7 ~! w 0 O7 d9 j" L! z8 u& x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???, J4 Z" P' ?: I! y2 i6 ]
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???? % c- C3 e/ E& a% z* H4 _ / Y0 F7 c% p* q; G3 A2 q' b* T! f9 K4 G) D, M0 H4 I3 c+ a8 E& ?
2.这是request的程序4 {+ O. v/ w0 V9 P7 ], X
// Request a value from Extend( _/ h- s% m* [" c# [0 V" m
//; _/ G! T, Q$ F0 F( ? W9 o
// Initialize the variant that will hold the BSTR. Set the variant's - v4 u2 x4 E: z# w% a// type flag to indicate the fact that this variant holds a BSTR. Place the 8 W$ ]) t9 p4 z( X// BSTR into the variant structure.5 L" o) g$ |- @- |3 X" C6 l
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ( n; `9 Y" |7 d+ \ J% _ $ P4 Z4 L( p' d9 K
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . r Q5 d7 T1 V, ^4 O, ^ VariantInit(&requestVariant[0]); 2 E) q( k6 a* O0 [: T0 B" G
requestVariant[0].vt = VT_BSTR;* V Y9 i- Q% @3 y
requestVariant[0].bstrVal = itemStr;! y+ E2 T; n5 D" S# c
( A% [! \8 s: } topicStr = SysAllocString((WCHAR *) L"system"); : _2 e U @5 r; ~' ? D7 p0 x VariantInit(&requestVariant[1]); & I& v' I2 N/ `, b
requestVariant[1].vt = VT_BSTR; ) g* s3 U7 {; q0 L. | R. B requestVariant[1].bstrVal = topicStr;) q k5 ~( x) k7 S3 r
- a9 G% R- e2 B- q// Set the DISPPARAMS structure that holds the variant.- R- \- f$ E f9 x' s" i8 R# b3 @
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dp2.rgvarg = requestVariant;9 G. H9 B3 T( U1 j$ s( U
dp2.cArgs = 2; 2 n( R D4 }" J+ _8 _8 w5 J) M dp2.rgdispidNamedArgs = NULL;: w' F# _5 |4 ~3 k: V
dp2.cNamedArgs = 0;8 M; |( b& @1 v/ g! @9 z1 n
: @* s7 o- L; l& a) K% N8 { var.vt = VT_EMPTY; 3 ~: W5 G( \; K$ c. W% ` 2 o; b/ q5 ]5 Z// Call IDispatch::Invoke() 2 h/ x9 A1 u! c4 j 4 M, @* ^" Q6 Z9 K hr = m_pDisp->Invoke(' }/ m m3 X4 T% ^# J* n& O
requestID, + B; S* I! @9 p% S* I5 p9 I8 b IID_NULL, 7 s8 e/ m$ k e4 r5 x LOCALE_SYSTEM_DEFAULT, ! U9 B8 _3 Z* L ~ DISPATCH_METHOD, 7 I; ~" Z9 z' H; r$ S' x &dp2,8 P7 r0 v1 k) ]! y) Q# e
&var, * K f7 `) U- y; u; M &ei,- W3 W: ^7 s* F! M" k$ z( q
&uiErr); ! n, a: _9 c% ?& r! L7 H1 ?8 e5 P 3 h' j. P9 f& ^ q SysFreeString(topicStr);# E3 E& e0 ?6 |" Y% L% r
SysFreeString(itemStr); + J" D3 C" V- M3 b1 H! Z' o+ ?请问该程序是获得extend里面的哪个值? ) b* [6 D* V6 R6 q' N/ z) 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????