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: ' e* r' U3 w$ B/ \# [! z1 [2 yName = (WCHAR *) L"Poke";7 R8 d( i: u' s# s* q1 n
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hr = m_pDisp->GetIDsOfNames (( h! @; j# |0 g4 x& q3 ~
IID_NULL, // reserved 8 t( \$ f2 L& u( i &Name, // Array of names to get IDs for 8 j, z3 y& p7 n: E2 ` 1, // # of names in the array/ ?, Q( g9 X$ l/ e9 d h) z
LOCALE_SYSTEM_DEFAULT, // System locale & R( {7 r, V% Q &pokeID); // Array of IDs to fill on output6 h# b0 x" c0 R7 `" j% ?3 n/ T
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if (hr) 5 j% O. L, [: D0 z, _- v r0 c { 4 c. M! m2 v& N0 q6 V( M MessageBox ("Get Poke Unsuccessful");/ [% H) t1 G4 {" N( _- C
return;% Q0 ]! A; O& B) h ]* l
} . c) h' d# N' S, e 0 _% J7 [/ D- F* X2 n6 H9 k3 {/**************************传递数据给extend**************************************/8 L p. ?5 ]. q2 x
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ' F/ O7 ?; _1 _7 q. d; ~ ' g+ X ]/ p7 ^: k1 Z7 r
valueStr = SysAllocString((WCHAR *) L"1232"); & A7 }$ k2 ?7 S VariantInit(&pokeVariant[0]); / M. m# |7 Q. h' `5 s* t, Y1 X
pokeVariant[0].vt = VT_BSTR; " ?9 h7 \. o. l3 X2 t+ P9 G pokeVariant[0].bstrVal = valueStr; % i+ t) j% A0 G4 H6 E$ l 9 P8 @& i, V; k# s# ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 c/ G; t4 G+ G
VariantInit(&pokeVariant[1]); ; O5 {/ p- ]) K- j0 H
pokeVariant[1].vt = VT_BSTR;& w3 z: b" L4 K
pokeVariant[1].bstrVal = itemStr;9 _0 T& b* K j$ W6 b
9 U: s+ p1 {0 V. l% z) B topicStr = SysAllocString((WCHAR *) L"system");1 R/ B; T k. X3 u% `" b6 M2 K
VariantInit(&pokeVariant[2]); ; c9 p2 r. }+ A' R5 g
pokeVariant[2].vt = VT_BSTR; " M" P- h3 J1 R pokeVariant[2].bstrVal = topicStr; 0 ?' q6 ~% H* p+ f r; i4 l: \8 l4 c3 l+ |// Set the DISPPARAMS structure that holds the variant., I3 t" W2 ?# [
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dp.rgvarg = pokeVariant; " u$ C" [4 E1 T2 _/ b+ ] dp.cArgs = 3;; {! @) C- y/ V# q4 @$ X; R; @, X+ ~
dp.rgdispidNamedArgs = NULL; 0 U0 @" k3 [4 L4 f# J dp.cNamedArgs = 0; ' \; o0 Y, p& i, q# S3 a- Y7 I # R/ u/ J; m* i8 V: y% f$ E// Call IDispatch::Invoke() ; Y0 E' V$ s( I }" Q- _ & o4 l c: p! i9 B: s hr = m_pDisp->Invoke( & n* \. [+ b/ B% a pokeID, / y1 P" C$ r- r% x( S! f IID_NULL, 9 j4 }- V# {; q- \- G3 ^! o LOCALE_SYSTEM_DEFAULT,: G. C1 `6 L& p2 s
DISPATCH_METHOD,# z, g: c: @& C; m; l" x& v# _0 {
&dp,; Q# L2 Z# h. s0 ^
NULL,' ^6 {+ d# Y: S
&ei,5 p. n' l* I% `3 Z; r: C
&uiErr);! L, r/ c+ W4 _7 _* i0 A- f$ V; C
1 f, o6 z; \7 a: q4 b& G SysFreeString(topicStr); 3 l9 \; P" y5 H SysFreeString(itemStr); 2 z1 a3 N" f& p SysFreeString(valueStr); / k5 R& V! V3 @* ? ) s$ n8 H5 E% R- x: j0 N/ f' d+ V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???+ E. K: ]" ~- h) N
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???? % _4 K6 ~; t8 ?, G; x9 ]" F: P2 U8 a- C, \5 G
6 e [; ?# C- f' l% w0 g2.这是request的程序 & c1 [6 M: @! g/ z4 p// Request a value from Extend; [! W/ t# X* `. P
// 1 i8 T6 C. k( B% I// Initialize the variant that will hold the BSTR. Set the variant's 0 H" ?3 v \( [7 D0 j2 ]( k// type flag to indicate the fact that this variant holds a BSTR. Place the! V, R! c5 D' Q/ h. E" A4 e P' I
// BSTR into the variant structure. Q/ k. i. M6 C
1 w# r: y. z$ U4 _ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);( ]( d% j1 V! s. V$ A& a% O; h
, e3 r7 \& I0 T0 B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ l! n2 y3 N. y, z q
VariantInit(&requestVariant[0]); t4 R# {# \( \# \# F3 }
requestVariant[0].vt = VT_BSTR;# ^9 z r1 v! E
requestVariant[0].bstrVal = itemStr;4 b- D( O6 ~: G+ V
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topicStr = SysAllocString((WCHAR *) L"system"); " B& q* m- s4 n9 ~5 { Y VariantInit(&requestVariant[1]); 0 l7 `/ o3 R' b3 |/ G+ ] requestVariant[1].vt = VT_BSTR; " X# h' }0 T, d1 t5 { requestVariant[1].bstrVal = topicStr;* g }- z, a* ~, |. h
: u& `4 r3 ^. l7 Z8 U// Set the DISPPARAMS structure that holds the variant.) g3 B1 \$ ?" S5 l; i/ q
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dp2.rgvarg = requestVariant;1 q# g* ?' f& F3 [ e6 N# E% n' c
dp2.cArgs = 2;7 e: D6 k \ P5 g0 w
dp2.rgdispidNamedArgs = NULL;0 x8 J4 {2 w/ i7 M9 ~3 K
dp2.cNamedArgs = 0; 3 S% A) c" O. C6 E7 B1 w0 W, T5 c
var.vt = VT_EMPTY;, M7 g3 D9 a8 J0 b2 w
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// Call IDispatch::Invoke() # b) q! c6 F1 G: F/ b: B) m" g( R0 N; | E. x( C
hr = m_pDisp->Invoke( 6 Z- H* r1 [; U) U) x0 h8 g, T( O requestID, ) g8 \1 g) G! J- j4 E IID_NULL,+ i4 l' h) u8 G$ H: O
LOCALE_SYSTEM_DEFAULT,% s- L }) W6 L' B4 ?* M7 [
DISPATCH_METHOD,- A. I+ X, p! {1 {! e. {8 ]
&dp2,+ a" @: w$ `6 X% q* A3 O
&var, + v8 T9 D9 N9 ^( S% f( ]1 d3 w1 V2 x &ei, . x2 Q2 c/ u( ]7 m+ I) ] &uiErr); 6 ]" ]0 ?" ?2 H1 k* l/ O . j2 F% S2 V1 g f* C- F$ g# }* S& q SysFreeString(topicStr);) w$ u/ x2 G$ R, ?5 y4 O
SysFreeString(itemStr);. C; {( y! T, G2 c& P0 S& S8 {" U* o
请问该程序是获得extend里面的哪个值? \+ l' w& a3 F* |$ j. j/ o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????