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:8 j) |# y9 D& r$ K5 c2 R
Name = (WCHAR *) L"Poke";- G5 L$ `6 V% M
/ t, \4 t3 O/ I* I R; u hr = m_pDisp->GetIDsOfNames ( 0 @/ Q/ |& F, h* B7 }! { IID_NULL, // reserved6 h6 O# C8 L+ J+ {+ ]
&Name, // Array of names to get IDs for9 ~ e6 O& k% z7 y
1, // # of names in the array- d; d( i0 P3 m
LOCALE_SYSTEM_DEFAULT, // System locale 6 D5 c8 \& f% d6 J+ I2 A+ | &pokeID); // Array of IDs to fill on output2 @2 H/ u& { c$ z0 E5 W: p( J
* w M' E# ?# B if (hr)& k, | `: E: i. T" u/ h: F
{ . @8 l+ w% V; B' A( L MessageBox ("Get Poke Unsuccessful"); & [8 l) L8 B$ s" V, I. c return; 2 N7 C- G2 S1 L8 S* E# u6 |! b }1 J. z8 `2 G# u
; E. h) i4 u1 g! S" S/**************************传递数据给extend**************************************/, t: R+ n+ b8 a6 K8 _9 s
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ U6 \( k3 ]$ M8 U$ N" J+ u
o9 l) M O7 a# d9 Z valueStr = SysAllocString((WCHAR *) L"1232"); 4 m4 j, I" T7 t S) v VariantInit(&pokeVariant[0]); ' E: R" r# N1 ?' w2 q0 A pokeVariant[0].vt = VT_BSTR; : @! T( j: F8 k- j3 T' g8 `+ i pokeVariant[0].bstrVal = valueStr; . `% a- A# \. J2 K8 E4 l0 O ' j, t% t# A* }. M' z7 g' x) O itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# }! i" t* P+ y, |! j' v2 c* B, |
VariantInit(&pokeVariant[1]); ' ]+ p* j; J' [8 z/ Q- A; S% s pokeVariant[1].vt = VT_BSTR;, [% }9 E/ j" k, @( ]4 s
pokeVariant[1].bstrVal = itemStr; 1 [0 T7 b W$ ~5 o! n8 T# C- E: ]6 i) @3 X, U" Q
topicStr = SysAllocString((WCHAR *) L"system");% K0 g2 }4 n, @" k) Y3 h" I1 G, @7 ^
VariantInit(&pokeVariant[2]); 3 \/ c1 H- c6 [6 e pokeVariant[2].vt = VT_BSTR;- Z, `" L; l/ E; ^
pokeVariant[2].bstrVal = topicStr; ( w! I3 w4 s2 j4 E. i% z. W0 l) p1 d
// Set the DISPPARAMS structure that holds the variant. # L: @" o2 B6 z0 Y& d1 ]/ y7 v, d4 T* S. Q3 k$ i U
dp.rgvarg = pokeVariant;( L* \8 P3 Y( a0 ^7 I y
dp.cArgs = 3;5 a- h; a0 v U2 V7 `$ {- L
dp.rgdispidNamedArgs = NULL;4 f1 G/ g- T& _( S( C9 J! P4 C
dp.cNamedArgs = 0;5 g- z# g& ?: {4 C3 l2 f% f
$ |$ A3 i/ y8 a- z; R; b// Call IDispatch::Invoke() 4 X6 x4 ^& T0 g; Q; C% a, z1 X- D7 A. l. v+ ~: ~0 n( k# Q- |4 p+ ~
hr = m_pDisp->Invoke(7 T- ^) ?- r; J0 x+ I# t! Q
pokeID, " d* n7 C- g) [$ m" p+ A+ h IID_NULL,) {# i" d! I+ K9 \ n
LOCALE_SYSTEM_DEFAULT,- @6 v- I, {( k7 `
DISPATCH_METHOD,8 Y. u1 M. f+ r- a
&dp, ' x& v1 _4 d* {2 S; n- h8 B0 R( q* d NULL, , m7 @" i) M' [2 s3 o& W &ei, * b8 k3 _( D; i' i &uiErr); 0 N, Q% v- R H% c1 r: }6 M4 t2 ^5 W' j
SysFreeString(topicStr); * M6 h6 o. {! }& v: {# o SysFreeString(itemStr); 8 d8 Q% ~) }7 E- M5 Z/ O SysFreeString(valueStr); 2 L$ w2 r4 e+ P% }4 Z% z% E6 S% T% k
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??? 8 w% i( s7 n P t3 m# f& z2 e% 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???? / U( w& ?- Z0 {) Z. s: h$ _* x! v4 G 7 }; \& o# s3 R. M( w; G: e 5 N8 D- m7 l; `2.这是request的程序 ' t5 Z: E- V, i8 j, ? d// Request a value from Extend [2 P A! [; T- ?$ q3 k
// # g8 z7 e( x' ?6 ~" O# }! q) `! h// Initialize the variant that will hold the BSTR. Set the variant's / K; N) y0 a8 F$ G. ~// type flag to indicate the fact that this variant holds a BSTR. Place the " t7 `+ e1 n5 ^9 c9 U% J// BSTR into the variant structure. # r+ w9 F1 E' H; C' e0 ~4 A4 x/ [& |+ G/ G
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); * C, j* v, N: t" A+ z! V/ w' \0 X 1 w5 d8 w w5 L1 F: O itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; z2 S; |- Y# ~. W% F6 {2 ^; c# N VariantInit(&requestVariant[0]); : [/ J$ i- x/ }/ B3 b0 Z% V/ O) g
requestVariant[0].vt = VT_BSTR; , S" F# C) {5 s. B+ Q requestVariant[0].bstrVal = itemStr; ( v0 D" Q: e, f- z) ~: H/ n7 q! ]/ t! q2 ?/ G" m
topicStr = SysAllocString((WCHAR *) L"system");, b1 n5 d1 X" L, w, @# h% T) _5 U
VariantInit(&requestVariant[1]); 2 e$ F; J4 ^# t: g% A requestVariant[1].vt = VT_BSTR;0 I% I! Z1 S+ x' ^! J1 S
requestVariant[1].bstrVal = topicStr; 8 H7 }9 a F& ]6 ?; ]) r$ J" w/ w
// Set the DISPPARAMS structure that holds the variant.8 [. t1 O0 M& G* n2 [1 r; _9 P
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dp2.rgvarg = requestVariant; ! p' D/ V/ i4 K0 z& b dp2.cArgs = 2; 1 }$ O8 W( y2 b, Q6 N. x4 O dp2.rgdispidNamedArgs = NULL;" Z0 P- d% l6 X& N3 f+ k
dp2.cNamedArgs = 0;( J) M% w5 a$ o; z9 N" y; f; ]