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: 7 a; O# W: V5 Q3 ?9 ]' c5 F& }Name = (WCHAR *) L"Poke"; , Y$ M$ O( U# O( M ; b* j" [# X- A% A
hr = m_pDisp->GetIDsOfNames ( : \( L3 j& F J/ Q' ? IID_NULL, // reserved' l& `2 ?3 g L5 g- M9 A
&Name, // Array of names to get IDs for ; R% i: B; o) o# n X 1, // # of names in the array 7 U, ?* V$ O. W) H# Q LOCALE_SYSTEM_DEFAULT, // System locale$ U- K# C' ~0 x8 d8 s6 L& l
&pokeID); // Array of IDs to fill on output( M5 S# v$ u( E% @3 R M1 k/ Q
5 k) B* @5 I6 U0 I3 G& d if (hr) , Z9 c) E P- f" f1 a {2 p/ y) l$ m6 J
MessageBox ("Get Poke Unsuccessful"); / Z$ G3 o& V2 |9 W$ `: E* v) [+ M return;: B* j0 p5 k3 R
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2 r3 z( {' Q# U, A/**************************传递数据给extend**************************************/3 Q5 c, P4 h: I3 ~! \
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 \0 R; H8 Q9 p5 A( C+ T
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valueStr = SysAllocString((WCHAR *) L"1232"); # r" d+ l" {/ e6 F1 K; u: W1 B VariantInit(&pokeVariant[0]); % P8 A0 n8 {3 A5 k* I J
pokeVariant[0].vt = VT_BSTR; , O, v0 i6 b! ?, d9 B3 t pokeVariant[0].bstrVal = valueStr; 3 m: I$ g' I2 N0 t! o( g3 N8 u; e' Y2 |- {9 }6 E
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) d6 z0 O; h/ L
VariantInit(&pokeVariant[1]); 8 J4 J9 V0 D( r. m, Y- y pokeVariant[1].vt = VT_BSTR; o: n, I! B' K
pokeVariant[1].bstrVal = itemStr; 7 [! f* S: r: E" ?' {: h* H. S. ]9 U @+ ~1 M$ }6 O# }
topicStr = SysAllocString((WCHAR *) L"system");3 ?4 T3 m2 V. y% u1 `: @3 o: I
VariantInit(&pokeVariant[2]); : P( f6 X2 r- H pokeVariant[2].vt = VT_BSTR; ( O ]! T# i c3 i% _1 y pokeVariant[2].bstrVal = topicStr; ! k1 D1 ~, E c: Z+ Z! v; g, r" G + z: N0 t* y1 h& x( i- b6 d// Set the DISPPARAMS structure that holds the variant.# l0 ~/ r$ e3 m+ f Y, h
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dp.rgvarg = pokeVariant; W& D7 c- \3 ^# X dp.cArgs = 3; v: u$ G* v/ N" E. v u' k Y
dp.rgdispidNamedArgs = NULL; ) i2 Z4 P. ?" B+ I4 m dp.cNamedArgs = 0; _3 }; ~, f( _6 }* j! J& s# ?; c : ~9 `8 {2 g% {& y6 f// Call IDispatch::Invoke() 2 g, Z: n" A: @4 `5 `4 v" C3 k# Z7 O9 p
hr = m_pDisp->Invoke(+ y: ?& g% J# \5 M% U( @4 p# Q4 B
pokeID, " t( b2 X. ]' P. _9 q4 f0 X9 W7 Z IID_NULL,( {0 K5 b2 \% K- r
LOCALE_SYSTEM_DEFAULT,. W+ K& \: k8 u
DISPATCH_METHOD, 7 y- D- t: Y/ n4 W3 r2 X &dp,! a0 m7 {* W6 B, p
NULL, n$ X v9 ?! h, C0 l0 y; n &ei, / Y- E( T" w1 d; V( Q6 \2 ]6 _5 m &uiErr); # K- }/ E: {. _' G' x" o, U$ ~& G% V& l( d
SysFreeString(topicStr); o) _+ M% ~. [0 P( ] SysFreeString(itemStr); ) l& H# p3 Q% _ SysFreeString(valueStr); * ^' e) d0 _: M7 S1 V: C7 _# O! J9 |( [/ m
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???( J1 N( L7 R# C* b- I9 X' P
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???? : q8 U# Y1 E% k4 ~ * U( I6 y6 H# E* I: f3 a' D) o9 g: j/ U
2.这是request的程序 3 e7 M7 a: R. T0 `( Y// Request a value from Extend % n$ o- s; k/ y+ J// ( E7 }; H- t* ^// Initialize the variant that will hold the BSTR. Set the variant's2 y8 E& t, v! l; h
// type flag to indicate the fact that this variant holds a BSTR. Place the : q Y: {) f, A3 M- R. a// BSTR into the variant structure.) S; o+ p+ E( |& K( u
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 ^+ [4 s" `9 F) B; t/ W" y
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! s5 T" P+ _7 Z& z, Z VariantInit(&requestVariant[0]); 4 K+ x; t s& S1 t( a# R requestVariant[0].vt = VT_BSTR;( s9 d* Z+ r# W$ G) |
requestVariant[0].bstrVal = itemStr; 7 u& ] N+ Z5 i1 f( W: u + K2 M- } G6 x( s: a1 v topicStr = SysAllocString((WCHAR *) L"system"); 9 |8 I9 m" w0 k VariantInit(&requestVariant[1]); ! D6 Z/ h4 w* ~. q6 O
requestVariant[1].vt = VT_BSTR;& z+ i& R3 E1 V; @: ^, N: R
requestVariant[1].bstrVal = topicStr;3 f. L' Z. n$ b( }2 {/ s( J b
7 H: X, m8 h! ~" r# L/ J2 W' L// Set the DISPPARAMS structure that holds the variant. 8 k; }5 c% }. C" t0 C/ U3 b' } 1 ] m4 @3 Z6 s6 I$ C9 g dp2.rgvarg = requestVariant;3 V o- _( V; l2 R" p, X _
dp2.cArgs = 2; 7 N" V5 R! x; B( C: R1 T dp2.rgdispidNamedArgs = NULL; * \3 \1 A; f% @/ E# I, y dp2.cNamedArgs = 0;* j A5 T# U( E& L5 z9 w
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var.vt = VT_EMPTY;) Y9 t: S2 C" ~. j& H4 z; e0 Y
2 Z. R! [ g/ H6 C# C* t" L// Call IDispatch::Invoke()+ k% X0 P3 Z: D
) A% [4 D8 Q3 J2 `8 {2 i& C1 @. N4 h hr = m_pDisp->Invoke($ p. y3 l) D( V% O4 W4 O) Q9 J/ I
requestID,9 l4 U0 S/ @& R R: K. c8 Q
IID_NULL,8 y3 e" J2 K3 a8 [4 ?1 j
LOCALE_SYSTEM_DEFAULT,& X) q+ w: T3 ^+ k8 D+ h. p
DISPATCH_METHOD,7 p, f; Z$ J- w6 x
&dp2,% N G5 M, J& ]% X+ S0 H5 @5 {
&var, 1 t! z7 N# d% t- v; N1 n3 e" | &ei, # u1 V; [# L) w7 i- m &uiErr);+ g2 E2 \7 {' O" B
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SysFreeString(topicStr);% `( T# o# ]( ~: d
SysFreeString(itemStr); % h' U1 Q+ C7 Y9 {! Q Y( b请问该程序是获得extend里面的哪个值?6 j$ y' \6 ^* [' {9 Z* b1 \! k
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????