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:6 F: b$ j |! j, W; R: m
Name = (WCHAR *) L"Poke";5 I9 i- `$ Z* V/ w3 D$ w; |
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hr = m_pDisp->GetIDsOfNames (0 T6 f/ Q/ b4 ]; C& z9 p l N3 I
IID_NULL, // reserved / F& H6 ?2 |& q: F! d8 m$ v3 c- K$ \ &Name, // Array of names to get IDs for" d0 O- r& A* y8 @8 r1 P
1, // # of names in the array' b2 c) R: V- \
LOCALE_SYSTEM_DEFAULT, // System locale " i) v W+ v, K q; Y &pokeID); // Array of IDs to fill on output0 \4 q# o' z6 U$ u
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if (hr)+ t3 E( O, q J$ B( o
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MessageBox ("Get Poke Unsuccessful");& T) ~$ i6 _# O3 g) [: }7 y/ ]
return;3 e: C; Q& r0 O% G F1 T* k: N
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* {- ^# K( N* l; s% @/**************************传递数据给extend**************************************/ 7 ~* V. h/ A) v* c pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, S" l8 f8 C8 J+ b! Y u
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valueStr = SysAllocString((WCHAR *) L"1232"); q0 u7 ?8 q( z# M# j' E VariantInit(&pokeVariant[0]); 3 J+ r: X8 g/ P9 B pokeVariant[0].vt = VT_BSTR;2 ?) W8 d" \, V' I) T1 k7 J$ d5 Y
pokeVariant[0].bstrVal = valueStr; $ H+ \* j' D8 K& T5 E % s( S: c: h% B& N* l/ s5 W0 T5 \: u itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 [; e8 o& o6 C1 V7 ~% _
VariantInit(&pokeVariant[1]); 0 r4 ]# u# S, C, Q pokeVariant[1].vt = VT_BSTR;; H+ g6 u+ t' J$ V
pokeVariant[1].bstrVal = itemStr;' Z) c7 \1 e/ @: m
: I+ m$ K* O6 d! w5 Z topicStr = SysAllocString((WCHAR *) L"system"); / G; M! G2 n9 M. l0 s1 i VariantInit(&pokeVariant[2]); . u# o: [1 G' ~% F e
pokeVariant[2].vt = VT_BSTR;8 t/ H. f' U3 K8 p( ?
pokeVariant[2].bstrVal = topicStr;$ I: e, D0 g9 h* ]
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// Set the DISPPARAMS structure that holds the variant.5 O& W% `/ d% j' T, u
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dp.rgvarg = pokeVariant; ( S# K: v2 w9 M1 I. x dp.cArgs = 3;. u3 b# n. p) o$ ^
dp.rgdispidNamedArgs = NULL; 2 o C F" w0 u0 v- E( R dp.cNamedArgs = 0;0 d! I" c0 p5 h
9 \& D v* T. o9 C6 W) T// Call IDispatch::Invoke()* Q# z4 z, w) w* ~$ I& t
# ?0 n; M2 N3 q2 L0 \: C K hr = m_pDisp->Invoke(( g( [ a- e7 x9 r! `" g
pokeID,# S2 v6 ?3 j$ {% S# }$ g* y
IID_NULL, - W& f+ X1 a; w Q" ]" ] LOCALE_SYSTEM_DEFAULT, ; R6 v% W" _! N( I+ E+ D+ V3 i- `" c) c DISPATCH_METHOD,5 v, _9 A4 L) v9 N! v! E' U% i6 U
&dp,8 F( l- d8 L9 K. d& _/ `0 a
NULL,2 k- z: i$ }8 j* j
&ei, . G# c' y# `( X% c) D! q &uiErr); 9 V* q4 h% N- d2 E3 h' I6 B( @( |4 h% x [
SysFreeString(topicStr); * b5 {8 o0 `+ P SysFreeString(itemStr);- k/ c7 d/ a5 p
SysFreeString(valueStr); ' I- H8 F2 c2 e/ z; K; c/ I8 e1 y. ?
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???: A- L" a2 S( C( i; l# g; `
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????; C/ F h: E8 y8 U
1 x4 z3 \" \' M4 z3 C5 k ; k) }# s, l" p8 X9 d# p1 S3 G. E2.这是request的程序 - a/ n( e" W& o// Request a value from Extend6 s9 E1 j/ q0 c+ A
// ) \! h8 s# U/ p2 _// Initialize the variant that will hold the BSTR. Set the variant's. s! Y, |/ w0 b" S% H0 q
// type flag to indicate the fact that this variant holds a BSTR. Place the , y+ u. s+ p, W5 c! X// BSTR into the variant structure.0 `- Q n/ C, A" w1 V# f
/ [) r6 ^ h/ l/ P {6 S requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);; U# S4 r, }3 m
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % W+ v4 Z0 g3 v9 C! s( R1 j; I VariantInit(&requestVariant[0]); * e2 k Y! t; f) V
requestVariant[0].vt = VT_BSTR;4 X* f$ O0 _7 U
requestVariant[0].bstrVal = itemStr;. R j/ {) K3 C: p& H- g3 \' ^3 E
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topicStr = SysAllocString((WCHAR *) L"system");( B/ p9 M: m8 H( {4 d. f
VariantInit(&requestVariant[1]); ; Q2 A+ R% g& v) R
requestVariant[1].vt = VT_BSTR;) M5 G% D5 i9 T7 r8 f& V
requestVariant[1].bstrVal = topicStr;4 B: S0 m5 W4 w) p0 `1 @
: s6 C a! e1 [- P// Set the DISPPARAMS structure that holds the variant. # n3 G+ H) [9 W1 E3 Y* n+ U* w* Q, \8 `- {& v0 J( K
dp2.rgvarg = requestVariant;0 z- q( h3 e# z! y$ `5 h
dp2.cArgs = 2;2 S/ r, f: \8 J' g( o' Z$ B1 q
dp2.rgdispidNamedArgs = NULL;' b# _% D- C: R0 c
dp2.cNamedArgs = 0; : L, n7 _% s, }, M' R7 j8 r ! g! e' M( d' B9 R* I5 |+ p var.vt = VT_EMPTY;" ^3 O6 E/ y6 H6 R5 y6 \; n6 ^
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// Call IDispatch::Invoke()8 P/ w& Y9 i" U- b- z* M, w2 Q1 {
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hr = m_pDisp->Invoke( ' B& y" Z" f+ i) ` requestID, ) J: S. C8 X( @ IID_NULL," D/ I2 _ t4 j4 k; @: W
LOCALE_SYSTEM_DEFAULT, 1 O1 A2 y) A- D" M! o6 B DISPATCH_METHOD,6 O7 @/ T) [4 ?- G
&dp2, ) c- A, y( I9 F$ o& u1 U' R &var,; Y7 S1 `. V7 q
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&uiErr); ; h* T- l( p* `5 F, O9 e( ?2 ?3 ]/ p$ e- I2 [# l; S
SysFreeString(topicStr); . o/ ?" k, F0 X6 ]5 l2 C SysFreeString(itemStr);7 [. Q$ I" }3 j8 T! h0 D
请问该程序是获得extend里面的哪个值?3 o" a7 V( [( W7 `/ c& i0 }# r
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????