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: : I0 J5 |1 i3 S0 dName = (WCHAR *) L"Poke";* \3 \% D7 a. I8 z. M
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hr = m_pDisp->GetIDsOfNames ( 9 j" F- y9 b+ p0 Z& J& z IID_NULL, // reserved ! E8 L9 G" [7 R; o$ M4 x &Name, // Array of names to get IDs for- Y1 y# P" i; w/ S$ y
1, // # of names in the array % P* e) W7 U b& F LOCALE_SYSTEM_DEFAULT, // System locale 7 b; B9 `# ^3 s$ u) D5 Y; c &pokeID); // Array of IDs to fill on output 5 e" k2 u7 E$ Y8 N ' t7 n6 F7 L# T# K1 _* Y if (hr)% u. b5 v; P3 {7 ~% L! C8 n
{ 4 B+ ~( R* j& D3 j4 `' U0 w! J MessageBox ("Get Poke Unsuccessful");; k6 _$ Z) F7 T2 X; q, {4 v! T
return; # n. e+ Z' ?- z) Q0 I7 V }' L6 ?1 l& ]! h5 L6 D+ `# a/ y
+ N8 v, U7 K. {+ s% T4 C% A+ O9 r9 {/**************************传递数据给extend**************************************/ 9 I# D0 w m0 a pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); # G9 } f6 L x5 M. ] * s- p( y3 T7 f( O' c0 g
valueStr = SysAllocString((WCHAR *) L"1232");1 H" ~$ @0 c6 |0 u9 F3 \+ s! I
VariantInit(&pokeVariant[0]); % Y8 g8 ]/ d( i% _3 q- I pokeVariant[0].vt = VT_BSTR;. A$ o, _" C, ?( s
pokeVariant[0].bstrVal = valueStr;" o5 D/ {- K: I) y0 q, H7 \
) p! r9 V: Z* _1 V" Y9 v itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 V! S. r8 G$ `2 b2 U
VariantInit(&pokeVariant[1]); / ?0 I9 ~3 D }2 l pokeVariant[1].vt = VT_BSTR; 2 X% a0 }* F, [" u+ a# ? pokeVariant[1].bstrVal = itemStr; 3 U! B5 ^4 b( G' c. |# K9 ~0 I8 d3 Y" B* m# y
topicStr = SysAllocString((WCHAR *) L"system");& O% G3 T9 ~$ A! n- o' q
VariantInit(&pokeVariant[2]); 3 h2 ]0 d) C$ ]2 ? pokeVariant[2].vt = VT_BSTR; ' Q* G r+ Z! r3 a7 Z5 L- R' Q" l, w pokeVariant[2].bstrVal = topicStr; % r: \) T2 E7 o d% J# |4 `- E9 B- l6 b$ |6 u$ H% @
// Set the DISPPARAMS structure that holds the variant. ( V- o& e$ _# m, l2 K! m ) e2 ]. ^. T6 W: [) g" H+ ^2 R/ M: w dp.rgvarg = pokeVariant; ; a6 }+ `( e& L dp.cArgs = 3; & O! V% E* j m* t! @ dp.rgdispidNamedArgs = NULL; * h( o: J# r) I3 a! b* j3 C dp.cNamedArgs = 0;: i* C) @$ J7 D- D- l; J6 R
$ x% j4 `. v: S1 i q// Call IDispatch::Invoke()* R6 L: [( m( t/ z) Q$ t6 J- Y
. Y% p7 A6 |% ?3 ] hr = m_pDisp->Invoke( T) I1 P$ n8 P( v pokeID, 6 M1 B) r" n5 v: D2 ] S IID_NULL, 0 ^: X: c4 w) [; M7 w LOCALE_SYSTEM_DEFAULT,7 E. N( H4 B0 w
DISPATCH_METHOD,) W9 u9 G1 A% V" X$ F- ~
&dp, - I4 ~! D m) h. c$ ^# ] NULL,/ K; x+ _, h5 g) W- Y- r
&ei, 5 j. f" V" M+ R &uiErr); . p: [. k# x6 B3 t! I ! c/ U8 y- t1 I# w: W: Q z+ L: j SysFreeString(topicStr); # o! e2 F7 |. T% ? SysFreeString(itemStr);+ @/ C4 z5 f {. `7 w, R3 e2 n* \
SysFreeString(valueStr);4 M; _" P) [4 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???+ P) K2 L! n& @# m" a! o
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????5 ]3 f) L3 r% D, D! U; l6 v. s
# a v% V9 G) H' c# o( O+ p5 ` . n0 b/ S s+ D; F3 j2.这是request的程序 ; ^! z; P: [: P! W% j// Request a value from Extend ! v2 A* `0 Y2 g. j0 a9 Z$ P7 n//; P) k! b- I% U7 r( \8 z% t
// Initialize the variant that will hold the BSTR. Set the variant's # U( `0 p" J ]6 ~& ~' @// type flag to indicate the fact that this variant holds a BSTR. Place the- n, o+ Z3 v/ X; s4 p
// BSTR into the variant structure. O2 `) p; X) j/ q+ c' ^, c
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% o2 w7 U- y, R
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); e& C; c( L" D' M+ e5 L7 U
VariantInit(&requestVariant[0]); / A% L7 w* p6 g
requestVariant[0].vt = VT_BSTR; 5 L1 }7 C5 N1 |. {3 m requestVariant[0].bstrVal = itemStr;7 @0 F; Y1 _4 O5 W: S) y& m
& K. e2 a- y0 v& n topicStr = SysAllocString((WCHAR *) L"system"); 8 f1 ^& G+ y: G3 p- s Z& U VariantInit(&requestVariant[1]); ; N4 p! d! \7 t5 v. y- b @
requestVariant[1].vt = VT_BSTR;6 H0 L$ k4 L! b* C6 j8 `0 l
requestVariant[1].bstrVal = topicStr; ' m; c6 i5 r1 {- P, G/ h* p& `7 O; C7 ?; W; r9 N; K
// Set the DISPPARAMS structure that holds the variant. w8 s* X8 L7 ?+ y0 W% m
3 O# e1 s) q$ h) D9 C! u& z; ? dp2.rgvarg = requestVariant;/ s0 O0 k7 z/ N- |8 {+ w
dp2.cArgs = 2;: ~( A! P' F1 D# i$ F" C4 p8 J* i
dp2.rgdispidNamedArgs = NULL;, I3 k8 x, k' X1 e0 `$ h9 u
dp2.cNamedArgs = 0; 8 i( \) y e) b8 H3 D ! m9 u. e. Y' _" w; F' V var.vt = VT_EMPTY;% e2 Q+ x) m2 F. O k
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// Call IDispatch::Invoke()! o. s, \0 X7 p. G) e8 P
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hr = m_pDisp->Invoke(! i$ j; |( O8 ~& g
requestID, : \* D- v, j" e1 @: H IID_NULL, ]1 y; K5 N5 R LOCALE_SYSTEM_DEFAULT,4 I0 L7 p9 r& r/ Q- s
DISPATCH_METHOD, " \: m' X5 }' v1 |! p9 T; u &dp2, . K1 @- R2 ^8 n7 O, }' O- D. h &var, 9 d+ F" z4 d7 r7 k9 n7 B &ei, + j: H# z6 K( [/ Z7 }5 O2 E! R &uiErr); 1 _7 x0 k0 W+ } n' c/ P! ?/ F$ r+ L6 v. N/ v/ p+ Z$ z4 h6 }
SysFreeString(topicStr);- p! m# c% ]! ]$ U/ b1 O
SysFreeString(itemStr); * b+ L( V' G+ C7 B请问该程序是获得extend里面的哪个值?5 r* S( y8 m* I1 X: X
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????