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: % R6 Y/ v- h. m, |$ x! rName = (WCHAR *) L"Poke"; |& X- ]: M' t/ w" C. n : m7 v" Z$ g1 N& T. d |* W5 [
hr = m_pDisp->GetIDsOfNames ( + w3 l- Q; X* D4 W$ ` IID_NULL, // reserved * v0 @7 l; ^* S8 g0 O: p &Name, // Array of names to get IDs for9 J; r3 j6 j: J$ y8 G
1, // # of names in the array 0 K. D# i3 v, Z' R1 S' @* q2 n LOCALE_SYSTEM_DEFAULT, // System locale 5 \( K) m1 `1 v- s% ^( B/ M& a &pokeID); // Array of IDs to fill on output6 }7 _( a2 f/ _' t M5 V
/ ^: N$ z5 v+ Q4 [ if (hr)! |- @, a' ~9 b0 ?
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MessageBox ("Get Poke Unsuccessful"); 5 L v# F' U+ g% y$ l; V( D return;) y+ @( k" U, k+ M. g" u6 N$ u# D
} 6 ^! n1 k* v+ P" S& Z V9 f9 _ 6 g7 T5 ~. T3 F, x/ J# K/**************************传递数据给extend**************************************/$ K" H* ]$ [5 C- V6 ~( B3 H! T/ q
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); D2 P) k( O& R5 e 5 x! M; u/ s2 ~5 ]' H valueStr = SysAllocString((WCHAR *) L"1232"); Q! O+ Y7 W) l VariantInit(&pokeVariant[0]); 1 \' [8 z5 t- v' E; V( m, g5 O
pokeVariant[0].vt = VT_BSTR; & N8 h* o- d' c5 @4 c% L6 }) \ pokeVariant[0].bstrVal = valueStr;; N. x7 n/ h0 V6 {$ I
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- Y7 `% ~" b7 \/ G( z
VariantInit(&pokeVariant[1]); 3 ^' N9 l( r9 K pokeVariant[1].vt = VT_BSTR;3 H B( P' N; Q. p. w5 Q8 n& o
pokeVariant[1].bstrVal = itemStr;/ `: R3 D" a- N0 Z3 X
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topicStr = SysAllocString((WCHAR *) L"system");$ c( y6 B0 C( {
VariantInit(&pokeVariant[2]); 3 J9 n; E" |2 G" o pokeVariant[2].vt = VT_BSTR;6 e/ n" f& w) U W
pokeVariant[2].bstrVal = topicStr;9 H! z9 {* o1 K( K3 s2 a; ?
" h0 t. o& E# G3 G6 F: ]// Set the DISPPARAMS structure that holds the variant.6 b ^2 F5 J; p- g& _4 h! N
* Q! a) j: N) X* S8 ? dp.rgvarg = pokeVariant; o. w+ H( G7 }2 I: [
dp.cArgs = 3;4 x* a+ h. k1 ?$ w9 ~' p
dp.rgdispidNamedArgs = NULL; D: t5 n. N7 }" X dp.cNamedArgs = 0; % {2 Q* q: Y: {, G0 ~" }) b5 U q6 ~; \$ N: x, |: d
// Call IDispatch::Invoke() ' n# P6 \6 p5 E/ }: o3 S) y: e0 h# n - ^ X# C$ J1 M5 e+ F( A% } hr = m_pDisp->Invoke($ U6 w! x( V R; A# V; O
pokeID, : N( P7 @% T% F' U# q IID_NULL, O" v- O% C) M
LOCALE_SYSTEM_DEFAULT,& s; s: l: @7 c% ?6 v
DISPATCH_METHOD, " R6 ^/ F G: X1 ]5 o &dp, 0 X1 j" p/ w/ p0 Z$ ^9 h; V NULL,4 p& w9 x0 f/ e1 A
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&uiErr);9 M$ n& R& y' B' y6 j
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SysFreeString(topicStr); 7 P: K! p: y* ]5 E# Y [' F- u SysFreeString(itemStr);' ` @. Z" ?* d
SysFreeString(valueStr); * Y* {* b9 x' r) T$ w( r; u + {5 l* Y( z) P4 @7 A9 ? S$ c3 N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 k, D# ^4 E0 Z Z% x) Y" n
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????; P7 b* I0 V. y# b8 n: Q) }
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8 N4 l9 w6 B) i0 r, s/ U# G" C( ?2.这是request的程序. F& a! V$ O* Z8 x. T
// Request a value from Extend- w. ~) o7 X/ ^9 a, ?4 g+ y
// * n2 y: y9 r/ Y9 u// Initialize the variant that will hold the BSTR. Set the variant's6 V7 S6 B7 T& P2 u
// type flag to indicate the fact that this variant holds a BSTR. Place the / T: N% G1 I$ [- W; w// BSTR into the variant structure.4 `5 e0 n) w7 o7 T8 L& d
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: f5 q' w6 q3 Z$ C+ c6 e% d6 F' n$ c
: a! z" h# C8 H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 t. ?5 L3 O% c! m1 S VariantInit(&requestVariant[0]); 9 \0 k& i! R/ \3 b: I
requestVariant[0].vt = VT_BSTR; # B1 W, {2 I5 q' Y) ^* f3 k requestVariant[0].bstrVal = itemStr; 7 \4 ?: B _1 \( n ) s7 U8 X5 \, ]: o! G4 l( H topicStr = SysAllocString((WCHAR *) L"system");3 [. ]2 D: n" Q7 g% B. r7 m
VariantInit(&requestVariant[1]); 6 a, E& N: U% e# Y$ @ requestVariant[1].vt = VT_BSTR; . c0 D* D6 o: B requestVariant[1].bstrVal = topicStr; , \/ r: e: o& ^6 \' S' |) r' u8 b3 b2 o1 m1 W
// Set the DISPPARAMS structure that holds the variant." D- p9 X) ~6 m3 V, Z- |% h
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dp2.rgvarg = requestVariant; 5 q, X' B. }6 i dp2.cArgs = 2; ( I- e. _! U; l! O, W dp2.rgdispidNamedArgs = NULL;3 v! b. A* [3 a6 R
dp2.cNamedArgs = 0;" Q* |, \ S/ J5 t8 @! s) |! g% T5 _1 v