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. ~* T) @+ L5 D# J" m h8 T
Name = (WCHAR *) L"Poke";4 H4 I( ? b1 H6 q* D2 f
$ Q, X, w3 d5 g hr = m_pDisp->GetIDsOfNames ( 4 i, H. x% r3 g, a% ` K IID_NULL, // reserved1 | _9 P" e5 q% j7 ~
&Name, // Array of names to get IDs for . x: a7 M M1 d3 G 1, // # of names in the array" N6 R3 l0 f1 ^* ^' e" C; G
LOCALE_SYSTEM_DEFAULT, // System locale% ?5 s* C2 k* ]/ B( Y" _% _- d
&pokeID); // Array of IDs to fill on output% O( m( _/ Z4 ~5 l6 n r* G7 S4 a' \
) z7 _: x; k4 \- r if (hr)7 F, k7 A1 G1 N3 Z
{% ^. B4 H. c9 o+ O
MessageBox ("Get Poke Unsuccessful"); 7 Q, t" A6 x8 H) _) c7 V) J return; ; t' z; h# G8 p6 `6 x8 D } 6 W1 ]! [; j7 V/ b0 @1 D% l 3 A+ t! B, h' o" a2 e4 T' x/**************************传递数据给extend**************************************/ - W# _; `, q3 D" e pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 Z* V- o* N+ _ V' w0 N7 ~7 e" q
; r2 j# S; V- P% P valueStr = SysAllocString((WCHAR *) L"1232");6 W7 H0 R [6 z$ c
VariantInit(&pokeVariant[0]); & {& }* ?7 q9 q7 K8 z% i4 m pokeVariant[0].vt = VT_BSTR; 8 \ E6 v" r. }# S% M* L5 b pokeVariant[0].bstrVal = valueStr; 2 @& I2 Q5 A# C1 @' V- b# v9 o, z7 u; I
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ~ _ \7 c, G* k( y$ i
VariantInit(&pokeVariant[1]); ?4 X8 x# n. v pokeVariant[1].vt = VT_BSTR; 5 r ~1 Y0 H' {1 ^& N- A pokeVariant[1].bstrVal = itemStr; $ ]9 {- q/ y- ]& Y7 V) s) N2 F3 R8 c) m4 u4 |4 {! m+ U' A
topicStr = SysAllocString((WCHAR *) L"system"); ) u6 j o) U- h0 M* T VariantInit(&pokeVariant[2]); 4 ~) |; d# |3 {+ k pokeVariant[2].vt = VT_BSTR;9 P1 j5 B; [6 b2 j/ Q6 v
pokeVariant[2].bstrVal = topicStr;+ _4 E0 Z- g* u; M6 X5 [/ `
& s$ B( r/ g. f1 r7 b6 O! x3 c+ |// Set the DISPPARAMS structure that holds the variant. ( y5 q( f& _3 \ M* g 6 N+ ?/ t3 U: w+ x dp.rgvarg = pokeVariant; 8 m& \' {; P. D/ @$ Z dp.cArgs = 3; ' t0 ]5 L3 _" J' q% | dp.rgdispidNamedArgs = NULL; / F0 Q$ n! }+ m2 A dp.cNamedArgs = 0;; U1 W: l6 q1 E3 A
$ m& U. m* \1 {* d2 M0 {5 K// Call IDispatch::Invoke() 8 a2 N. X% C+ M9 j- @) U! g- G. b1 W& L; x6 o
hr = m_pDisp->Invoke(5 Y/ n+ g- v1 O$ s) I
pokeID, 3 e' L1 d+ `* T* S6 ? IID_NULL,3 M! g0 H! G3 g! p$ k6 r
LOCALE_SYSTEM_DEFAULT,: J6 ]8 } z9 R" F$ f
DISPATCH_METHOD,3 P+ F* S( D& h* w* h( e
&dp,, M( J/ t7 v" X" j& A
NULL, 1 f" I# O3 e5 R- y Z; | &ei, / C ^! {# r6 l: ^' E) ` C& A+ Q( d &uiErr); 3 W( b! ^5 d3 F. k: c7 q( E, ~" L H" I7 {+ ~' I* P
SysFreeString(topicStr);2 r H* F- O n; I% n4 Q
SysFreeString(itemStr);) B: f. C$ V/ \+ m
SysFreeString(valueStr);6 Z' I: e, W* H
. E" ~7 x5 b" q0 R. W) B: u/ T( 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??? 7 M& a8 z; Y z) j! V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 l9 s& @# h& p: m0 t/ E9 t( c6 Y! ?" s0 D+ S/ G( u6 n
+ e3 e3 }9 L# E: B; f: x2.这是request的程序. E2 J) V6 s4 s, d3 q" Q1 n
// Request a value from Extend / o$ T. N: B' j4 l$ P// 0 b% q# L, g. s* G& ?' L// Initialize the variant that will hold the BSTR. Set the variant's. f: |9 N5 {! D) z
// type flag to indicate the fact that this variant holds a BSTR. Place the( F o2 t/ Z5 p; L3 v/ q( ^$ G
// BSTR into the variant structure. # E6 }* _# ?' |. l8 z; Y7 k. V " `6 I! X0 ~' ] requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); & m4 A& w/ b3 d4 k' V1 Y7 j- A ( R: H3 \. P0 ]8 K; R5 j+ u itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % N' }& [* A: i0 } VariantInit(&requestVariant[0]); . n( y% G( v q9 H& E; t F4 o requestVariant[0].vt = VT_BSTR; k: n7 K- [ G7 X requestVariant[0].bstrVal = itemStr; 7 \; M, N5 d! L* q7 L. F& a5 S& M- p, Y: p: M
topicStr = SysAllocString((WCHAR *) L"system");. A- a: s6 x2 ~/ G) C
VariantInit(&requestVariant[1]); # s7 U4 w/ _+ H! J+ p- p6 A4 Y# }
requestVariant[1].vt = VT_BSTR;+ b+ g! }( f& |! ~& _
requestVariant[1].bstrVal = topicStr; & _) C* e' w5 E2 M' z ) H- G1 _- N( p% ~// Set the DISPPARAMS structure that holds the variant." `9 }, K2 H& F5 G, k3 _" |2 U$ d9 P5 h) @$ O
2 a( i" S# j/ c) _; H4 b dp2.rgvarg = requestVariant;1 c* G: @ e$ W0 z' V. W
dp2.cArgs = 2; 0 u( K- g( s$ a9 | dp2.rgdispidNamedArgs = NULL; - ?5 w0 U- X$ u9 Y* P/ a, J dp2.cNamedArgs = 0; # K2 j8 r* Z; C5 P( m4 C7 U- k1 E3 ]# ]+ Z- B1 j( }0 Z: ?
var.vt = VT_EMPTY; * B* F1 b' E- U' Q4 w ; W7 W7 ~1 F# \8 L( ?1 J/ @+ B8 h// Call IDispatch::Invoke() % n& P& Q3 x+ ]- l6 _ ; T/ C, }7 z$ n- W2 x hr = m_pDisp->Invoke(/ \" ?- N9 A0 V( f( B* R" m( }
requestID,+ |6 d% ?5 I8 l: i: X9 a
IID_NULL,5 `/ H0 `: s6 {( a# d; p$ K; S( ]; |
LOCALE_SYSTEM_DEFAULT," w( j, m6 D1 M P" G
DISPATCH_METHOD,$ `# A# T; e) p' I' `
&dp2, # r ^, ?9 ^* i7 W B6 ` &var, * J# \) x# V0 `; x" Z1 ]5 s &ei,$ z2 o7 @: I1 N
&uiErr); - c. l/ f* i& A+ q r% t4 i : P. @5 c) P d$ ` SysFreeString(topicStr);& p& ~$ `! G& I8 ]: W
SysFreeString(itemStr);" ^# I$ R4 E9 ^
请问该程序是获得extend里面的哪个值?7 T& N% n7 w/ t" l
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????