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:& v( I, h5 w- T3 R: f
Name = (WCHAR *) L"Poke"; $ A7 B* g O/ b/ Q5 e' J1 w) M# { * P3 G5 ^- q2 W" i4 E hr = m_pDisp->GetIDsOfNames ( ! W& M0 h6 _: c7 t5 | IID_NULL, // reserved ) A% v" E1 ]" j5 M% E6 n &Name, // Array of names to get IDs for- ]" I, n& l. [; h. j6 c) N4 H, j
1, // # of names in the array & F- g f; C) p' ?/ P. X2 A9 v9 i- H LOCALE_SYSTEM_DEFAULT, // System locale $ } E9 k. Z7 h' c7 t$ e &pokeID); // Array of IDs to fill on output% b! F/ j5 a% `0 N7 w$ D
! t; g j+ Q6 r I+ v5 y! R% n if (hr)0 q0 U! i* t2 o
{ 0 J* M0 s) M1 F" s" {4 ^" q MessageBox ("Get Poke Unsuccessful"); 4 ?8 q" j2 c3 B u6 Q. c return;8 y' q8 C8 K( t. G) u& N1 \! L
} # I; Y4 }' }+ v @$ o8 Q' E 9 E8 ~, Y! t5 w" @2 f/ I2 o/**************************传递数据给extend**************************************/. |7 a$ p: g2 \# L
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);- E: e1 j0 c$ g
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valueStr = SysAllocString((WCHAR *) L"1232");3 p5 B+ T, z( ]5 c4 P' Y: {- }! s
VariantInit(&pokeVariant[0]); " \- O5 ?3 e+ g. o pokeVariant[0].vt = VT_BSTR;; k) s' `+ N+ D# }# q
pokeVariant[0].bstrVal = valueStr; 2 b* b: z1 W7 _' M9 ^1 ^ 6 q6 Q$ d$ N) p0 d& V1 U5 C2 B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 {% h. u- G# V. y" p8 S
VariantInit(&pokeVariant[1]); + t V+ Z* B$ H8 V& W pokeVariant[1].vt = VT_BSTR; + ^2 ^/ _+ F6 D+ D% h pokeVariant[1].bstrVal = itemStr;: ^0 r3 b ~$ D1 D* M4 U
2 N. ]+ N' g1 Y( w/ X% E( T topicStr = SysAllocString((WCHAR *) L"system");* b/ A& J2 T7 L! O
VariantInit(&pokeVariant[2]); c4 @: z8 \! d( \/ o' f1 [: k
pokeVariant[2].vt = VT_BSTR; , O3 e( w% C' _) E pokeVariant[2].bstrVal = topicStr;+ I" S9 k) L n4 M) H: V
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// Set the DISPPARAMS structure that holds the variant.) m" ?" L- V* y* e& s$ u- e
5 y* u# [- u, }6 S: s9 n+ T# V dp.rgvarg = pokeVariant; 5 y& P$ V# |& k* d% J% a) V dp.cArgs = 3;6 ]$ K% ?5 A) ^9 P7 Q
dp.rgdispidNamedArgs = NULL; ( p* k! q. f# v i dp.cNamedArgs = 0;4 Z: I( ?0 p) N; p( r& I4 \4 l
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// Call IDispatch::Invoke() t- e7 I- x4 l4 T: i% G
" E7 w7 |& k3 H; r hr = m_pDisp->Invoke( , R) F0 d( [3 u/ e pokeID,& V$ s. \+ t# e: ~; Q, \4 e) Y
IID_NULL,9 M2 q; x! T2 A, o* F7 P6 M
LOCALE_SYSTEM_DEFAULT, ! o/ I! v* l' t; T DISPATCH_METHOD,# P$ ^2 x+ Y, U Q9 v( t6 p! I4 ~
&dp,( E. V- V& m; X4 I' ~; U4 h
NULL,3 P6 t5 n: S; m! l% Y
&ei,1 w; w7 d4 v0 F7 O0 z8 C0 @
&uiErr); " o* S4 M- n3 u* @ . R& H+ c/ c: x4 _" m% w: Y. { SysFreeString(topicStr); ) m, G! `; ` x7 Z$ V) m/ K SysFreeString(itemStr); ! C9 G' \) l( v5 O3 k2 _! | SysFreeString(valueStr);2 \$ l; D8 H; _
; q" ]8 }+ j; z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???, J |0 v, r3 {, ?
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 V! ]# e# a. o5 D+ ?- t$ \ & n- b4 e& E! U; w! t% y8 C* r" d2 {+ J' ?
2.这是request的程序 $ p) d: \' x6 S3 @" }+ _# m5 B9 f, N' a// Request a value from Extend 3 w3 T S6 q' P/ a// $ n J4 P7 L0 i$ W// Initialize the variant that will hold the BSTR. Set the variant's' J0 N3 l' B. l! w0 C, {
// type flag to indicate the fact that this variant holds a BSTR. Place the 0 {& f- l5 `/ r. l9 l/ X0 }// BSTR into the variant structure. ! \. k" @4 e# l. _0 i6 `( Z! _- z, X- p8 P* |* }# o0 [
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' B# }1 H V2 }( S8 z 5 m) v' D! c) |5 N itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) z5 b0 n2 f% M; Q
VariantInit(&requestVariant[0]); - p# [) v! x+ X; E% d( k5 Y X$ O
requestVariant[0].vt = VT_BSTR;. ~$ R2 N; |) G0 ?* _
requestVariant[0].bstrVal = itemStr; : @1 o9 \- C, H / B! Z @0 D$ a8 d0 _* ` topicStr = SysAllocString((WCHAR *) L"system"); 7 ~. R& y( _+ J$ K VariantInit(&requestVariant[1]); 1 i8 Y. Y, c/ T! d6 J" y/ ?8 y requestVariant[1].vt = VT_BSTR;( @/ z6 _$ K0 w2 D+ m
requestVariant[1].bstrVal = topicStr;- n- f* C- I" Z
j* ]7 W, Z H! [// Set the DISPPARAMS structure that holds the variant. # g {4 ]3 v3 {) ]0 z" w" X+ P$ o( ]# ]- H
dp2.rgvarg = requestVariant;+ b7 h+ N I u# w! _+ c
dp2.cArgs = 2;0 @% x( r: e; A$ J8 o% I/ `
dp2.rgdispidNamedArgs = NULL; : J, ^6 Y& d' W3 E/ H3 O3 ]. s dp2.cNamedArgs = 0;$ P; Z# U5 {4 |1 S) \
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var.vt = VT_EMPTY; . K; X/ N$ {4 Q+ j' p% g; [) h" I1 K" Z
// Call IDispatch::Invoke() & B" w. V9 |6 B ^& }. J ! C1 P) ~1 w9 x hr = m_pDisp->Invoke( , k* H2 h, v/ U# N requestID, 2 z q' N: V% P* k3 ~1 r IID_NULL, ) l5 F) H* ~# S% C9 f6 ?& G LOCALE_SYSTEM_DEFAULT, % T3 h9 e& a- Q DISPATCH_METHOD, ! c; Y* i2 M, d0 j4 |" z &dp2,5 e% P, y+ B3 ^9 l' t
&var,6 e1 G" {) R' P6 Y. ?5 s
&ei, + D9 f5 l& J) C. X7 `& C* N( b! N &uiErr); w4 f Z9 j6 E5 i: b) o