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: 4 t1 B3 i& q3 S$ J0 zName = (WCHAR *) L"Poke";) B4 ~% e9 Q6 w) u" F7 w% [
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hr = m_pDisp->GetIDsOfNames (* t7 f7 o0 u6 \1 Z. \
IID_NULL, // reserved: h! E, c; ~" v$ Y
&Name, // Array of names to get IDs for# P, a9 X0 |' o3 t+ Z
1, // # of names in the array6 \, ]- @) T! f' G' E
LOCALE_SYSTEM_DEFAULT, // System locale2 s3 \9 ^4 o9 Y7 K5 m* ]
&pokeID); // Array of IDs to fill on output 4 w- C% v0 F; F$ `' P. A ; f- u5 m2 R; i7 |/ E
if (hr) 4 S U t+ @% g' e8 u- X% c { 4 h6 a @" w& o) ~1 e; ] MessageBox ("Get Poke Unsuccessful");: ^1 r5 h. r& L3 [3 ^
return;. d, P4 ]. i% Q: T7 ^2 l3 @
} , Y. c. q4 P) r: T$ o 5 L7 o t4 D& T/**************************传递数据给extend**************************************/ " `) |3 l" F* i) G9 X I pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' e& x* S- p: | u$ g
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valueStr = SysAllocString((WCHAR *) L"1232"); $ x4 {4 `- D4 C- Y1 }7 R+ N VariantInit(&pokeVariant[0]); $ w c* T: p% @2 h2 X! U pokeVariant[0].vt = VT_BSTR;- W, z% ^0 {) H- l- O
pokeVariant[0].bstrVal = valueStr; 6 C& B9 ?9 j" z c9 C( s5 o# V9 [9 S1 R
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- S) a8 n: Y$ q- r3 E
VariantInit(&pokeVariant[1]); 2 v6 E% P& v Q pokeVariant[1].vt = VT_BSTR;" p/ x- a% s+ R2 z& t
pokeVariant[1].bstrVal = itemStr;7 b, X9 g" f: n5 u! v6 B _" i2 _
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topicStr = SysAllocString((WCHAR *) L"system"); - i- a. D: H) O! D, l; K VariantInit(&pokeVariant[2]); / W# r: O+ C' ~ pokeVariant[2].vt = VT_BSTR;( @/ A1 }6 ]- v% M8 D$ j
pokeVariant[2].bstrVal = topicStr; 9 f8 ~, E: F+ v* z. v 1 U; P/ C" i. m. ]2 p& x1 O// Set the DISPPARAMS structure that holds the variant. 0 t1 `/ X4 z2 T# k" E/ o. @7 u + {2 b- D f: Y7 G dp.rgvarg = pokeVariant; . L% L5 y; X, K dp.cArgs = 3;- y, n1 n# J0 H" [9 w6 A+ c' }
dp.rgdispidNamedArgs = NULL;) h$ D. j: q& ~% q, l) V% W
dp.cNamedArgs = 0;! x: O' \- K5 l4 T+ R, v1 Y' B% l
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// Call IDispatch::Invoke() 5 E9 m ?3 C" I. F. [6 L6 b, b, m x) ]6 G: @( T
hr = m_pDisp->Invoke( , l) o- U! C' x& {+ o pokeID,$ s/ y$ `7 ?9 d% l
IID_NULL, ' M' y: Z8 D: J q8 A LOCALE_SYSTEM_DEFAULT,5 j$ _& V4 E: ~' V5 E
DISPATCH_METHOD, / Q6 X& b) f% ?/ m &dp, * P5 A6 f. b9 G* \1 X" B. u NULL, * q% b5 Y$ R' o7 @: ? &ei, t+ f! E! v- ^. i5 D/ v &uiErr); + x/ k( X6 F% F: m" n9 q) Y; z 4 {9 q3 M* p' m. K0 u SysFreeString(topicStr); , M+ v* ?8 c( h8 d+ l# | SysFreeString(itemStr); ! B J" A" R. @" j N8 |" N% \4 D( d SysFreeString(valueStr);2 b9 M @) n* X! S& H1 d
8 ]. k. c! ~1 t5 b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 L9 ]7 |5 _3 x! \0 t" h
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???? 6 V N- s5 _- m( g( F8 {- O % p/ R% k: g$ ~; {6 m }! L( Z/ T
2.这是request的程序8 N$ Q2 V: M1 Q9 w |" [
// Request a value from Extend 6 [# U* o" E. q, y//1 w3 m- b, C& _
// Initialize the variant that will hold the BSTR. Set the variant's9 Q. l/ M( {# y1 S
// type flag to indicate the fact that this variant holds a BSTR. Place the; [. [5 U. |) m* K1 b, Q/ n! O+ j
// BSTR into the variant structure.: _9 f" q1 k ~' B. L" K5 b* i7 g5 L