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 G- A9 r+ i' `3 p* `6 ^7 W
Name = (WCHAR *) L"Poke"; ' z/ D% d5 _2 y1 @5 L 0 }7 c7 A9 m9 B( u/ p
hr = m_pDisp->GetIDsOfNames (3 x8 ~) S4 z& B. v" p
IID_NULL, // reserved% @& {, y, H3 |! O, |% ?
&Name, // Array of names to get IDs for* g5 v5 `" A, W/ A
1, // # of names in the array ! J2 O$ e' h6 y4 s, h! L9 f6 X LOCALE_SYSTEM_DEFAULT, // System locale ) ?- W. ?; R8 | &pokeID); // Array of IDs to fill on output 8 M1 p8 V; v6 I p% u! r' V, k+ U0 Z 1 t, y" u' Q! t- f* ]3 H
if (hr) : H! H0 `4 q% g. H' b, C# N% ~2 ] {/ a, E3 Q. k, W6 E% I
MessageBox ("Get Poke Unsuccessful");* l2 u+ g4 j+ z4 `2 z9 d) q
return;. J* @+ b, F5 O
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/**************************传递数据给extend**************************************/8 t1 u3 r# @1 F7 @
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 Y/ h/ o- w2 Z/ q
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valueStr = SysAllocString((WCHAR *) L"1232");1 I: v$ S+ r+ h+ T
VariantInit(&pokeVariant[0]); ) z! o4 F9 L, l8 f+ d
pokeVariant[0].vt = VT_BSTR;: k e8 ?" |: o; t( n6 y
pokeVariant[0].bstrVal = valueStr; 1 E) G# {) C! P4 z9 G . K, a: J" l, K" m7 D5 x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 |: L' a, n" ^5 F1 v; _: m
VariantInit(&pokeVariant[1]); 9 [4 J# e5 q8 W# t
pokeVariant[1].vt = VT_BSTR;, S, A) ^+ x$ _: @0 ~) t$ A
pokeVariant[1].bstrVal = itemStr; ( E- |/ b P& x: y% G0 i6 e4 U" C5 U% ^- }3 ?/ P. y
topicStr = SysAllocString((WCHAR *) L"system"); ' l7 n' _, t4 f! u( @+ Q VariantInit(&pokeVariant[2]); ) t; [5 K9 _& b9 A" E2 x
pokeVariant[2].vt = VT_BSTR;5 o* o' t% Y" q$ h3 M7 A
pokeVariant[2].bstrVal = topicStr;8 I4 x: W) z4 r+ E$ H- i
) E6 N& U+ V. v% S4 ^// Set the DISPPARAMS structure that holds the variant. : s" ], j# b0 E 8 C9 ]5 a4 s f' o% z$ ~) @6 K3 H dp.rgvarg = pokeVariant;0 @5 d& l. Z3 O. ?' Z5 S' l( p
dp.cArgs = 3;0 d5 a. Y+ M- i3 q5 H& _; b
dp.rgdispidNamedArgs = NULL; * q. v- D$ C ~ dp.cNamedArgs = 0; : Y0 X7 i5 m8 r9 k, X( C( m0 G" Q! v
// Call IDispatch::Invoke()* r" _6 p7 }3 k% ^
! P0 V% y5 d: W* `5 O9 J/ g hr = m_pDisp->Invoke(8 s+ T! U0 i$ o) H& h
pokeID,6 n* g9 [0 L; f' h
IID_NULL,9 t# [4 i7 v! Q5 E
LOCALE_SYSTEM_DEFAULT, 8 z; S j4 i; [' C; ^+ p* d DISPATCH_METHOD,% c5 W6 f( ]* ~( ]
&dp, 7 C0 f0 F# v6 R4 _ NULL, 1 p7 w: _' u! C5 Y }* Q &ei,- C! N5 O4 A0 s8 e, @) l
&uiErr);5 f5 ~5 b& l/ u4 c
* y& G8 ]' W0 s6 P% O+ H" l. Q SysFreeString(topicStr); * k9 ^* j& L, E, o) X$ E3 ^ B# P SysFreeString(itemStr); , ~" T. `+ z% J6 q& V SysFreeString(valueStr);+ }: q) p4 l# F
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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???) O; L* n$ A6 N5 s1 ^1 o& b
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???? % b# r9 \$ ?, o2 {9 D) z' z4 \. y$ A# Z( Z }6 v
: H3 l' m7 U, X( \4 X1 V5 p2.这是request的程序0 f e5 Q+ R& r1 ^" s
// Request a value from Extend/ d2 P/ g- ?- j$ v$ o/ \/ ~, z
// ; Q$ t3 D' G) J4 Z/ {1 U! Q) I// Initialize the variant that will hold the BSTR. Set the variant's 6 q( q- Z: l$ W+ P& x1 b; \; |// type flag to indicate the fact that this variant holds a BSTR. Place the - B3 F" P/ t4 t8 g0 A+ `// BSTR into the variant structure.5 M: |3 i) U& D6 j$ N
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 5 S+ @& ~0 g; m: H) `8 `1 q - o4 e1 Q6 c7 f' d* \: N5 x6 F1 V {
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 C: \+ |% Q r P VariantInit(&requestVariant[0]); 7 r, |% E" @1 e6 Y( W2 G
requestVariant[0].vt = VT_BSTR; 8 G0 |4 h. _0 u2 s, ]' }! `, {$ s requestVariant[0].bstrVal = itemStr;2 g T0 R" j. i8 s. `2 D
) ]* n# V" E* } Z8 P! ] topicStr = SysAllocString((WCHAR *) L"system");9 S% L9 P0 a6 \; E
VariantInit(&requestVariant[1]); ; Y/ U& E* s; T requestVariant[1].vt = VT_BSTR;& ~( P) V. b5 W) `
requestVariant[1].bstrVal = topicStr;6 E ^- o; E* F7 B8 D0 U' d. @
7 I$ \/ a8 o; R2 d: M4 L// Set the DISPPARAMS structure that holds the variant. N0 `+ I5 S- t t. Z; F6 ~ " O- F$ Y* Z- M! j" j1 m dp2.rgvarg = requestVariant; / m+ e% d; y& J& O8 r' w dp2.cArgs = 2;6 ]1 i/ f8 r: s% b6 V
dp2.rgdispidNamedArgs = NULL; 8 l: q# V% P) j% _* g dp2.cNamedArgs = 0; % K" m3 N" H. R8 b3 v( Q3 h5 q: l z+ u9 J$ p
var.vt = VT_EMPTY;4 G% Z- R' J" z. R2 d
d) V3 {) \9 H. K# L# l6 V// Call IDispatch::Invoke()" c% X; f8 P6 W/ ?7 f& G d
& R7 k' `4 n/ m4 l. D. M hr = m_pDisp->Invoke( 0 s) J% s' h$ {+ C; ] I& U requestID,! S7 K6 w+ K, a2 r" f2 E$ \
IID_NULL,2 ^$ [( T8 g- L) h
LOCALE_SYSTEM_DEFAULT,: P H- A, d% J7 c) R, W* A* u( y8 f
DISPATCH_METHOD,5 ?5 Y) Z4 F# ^( W7 C i
&dp2,3 q; [9 }2 r9 F- h# e
&var, ; T$ t3 P) w* j" _. N9 S5 v &ei, 3 J" X' P/ q8 i p3 X% l2 t &uiErr); 5 h; j2 ?2 ]( f/ d, x5 q; C, `+ @% n( t, ?" h1 y- m5 D
SysFreeString(topicStr); ; l [% O/ ~% E. V `4 E SysFreeString(itemStr); 8 H& E0 X; j3 R: G请问该程序是获得extend里面的哪个值? ) a% ?) }' N; w; Q. e' W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????