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:: H, O: M2 n5 D/ T
Name = (WCHAR *) L"Poke"; 7 G }# V4 d" h' } + |7 S9 X/ l! n* c, U- w; F: b+ } hr = m_pDisp->GetIDsOfNames ( $ O* F* h4 V f- n) |' q IID_NULL, // reserved3 i' _4 F8 O" H" G$ ~5 _- C$ q
&Name, // Array of names to get IDs for: y, T4 X. o* m: u' m' U
1, // # of names in the array) A) j- D/ }4 H' d
LOCALE_SYSTEM_DEFAULT, // System locale) `* N9 a4 H; K
&pokeID); // Array of IDs to fill on output2 w7 J! Z$ g" ~0 h4 a
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MessageBox ("Get Poke Unsuccessful"); % |" S3 O* m" o# `; ?- O return; 7 C' i! w+ p) m; z# v }( X- @$ u' O4 q9 m7 E
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/**************************传递数据给extend**************************************/ : B$ _# i+ H9 | pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 a& F9 z6 c4 t6 x% z, V! P
* A3 t0 A3 h5 y" y+ _7 D valueStr = SysAllocString((WCHAR *) L"1232");/ R7 d* s4 s8 d! C* M4 N! |
VariantInit(&pokeVariant[0]); : O+ O, i% ~; f$ F0 H pokeVariant[0].vt = VT_BSTR; . ]8 Y5 s6 p, J/ {8 [" d3 C pokeVariant[0].bstrVal = valueStr; / X s" Z1 L9 ]! B4 a) \/ D' z* F# M$ I9 ?
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" j5 y/ W# w6 d4 z6 O
VariantInit(&pokeVariant[1]); + i" D+ t/ I6 V+ i pokeVariant[1].vt = VT_BSTR;2 o8 w4 \. w$ K7 |$ x9 p' b
pokeVariant[1].bstrVal = itemStr;7 f4 I" m* z% w+ Y& C2 w
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topicStr = SysAllocString((WCHAR *) L"system"); * j8 c+ B6 ~. `' Z& E VariantInit(&pokeVariant[2]); , {) u; h. M9 ~/ F
pokeVariant[2].vt = VT_BSTR;4 u' c, Z- S+ S" R
pokeVariant[2].bstrVal = topicStr; $ T! w5 R7 h- g1 g' H# \) `8 c1 A: I : i7 o/ r! W- r. a- l// Set the DISPPARAMS structure that holds the variant. / G% R# x9 c' h3 U$ w6 B9 p7 B5 ?0 M0 H! Z% g' [; ^9 b: {6 ~5 J
dp.rgvarg = pokeVariant;$ l! x0 a; I; s
dp.cArgs = 3; - P5 T* p; {2 C% ~ dp.rgdispidNamedArgs = NULL; % q- Q* L" Z1 P/ \! i( p8 K% d dp.cNamedArgs = 0;1 ]9 |8 d' M$ w" U1 u5 M5 L4 p
* w) w' ?2 i0 x: `// Call IDispatch::Invoke() : y& N! V3 B: M H7 O! M# F9 s / o! j/ `1 X! D& y4 s hr = m_pDisp->Invoke( * Y5 D( h2 Q, X) v( { pokeID, ! s$ [( _# j2 I: P- J3 [$ m8 G IID_NULL,% \* e. G2 o; t# j5 j. n/ `. r
LOCALE_SYSTEM_DEFAULT, , A* U0 ?- ?8 G5 o# s6 G& U: B DISPATCH_METHOD,- ^+ Q5 X2 S. K$ s
&dp, 1 I# ?2 E; X2 L- ~ NULL,& ~# l" H6 {% K
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&uiErr);$ `$ |: B7 f' N5 H) {9 B: F$ G
& p' ]* h: i/ W' k" x SysFreeString(topicStr);/ z) Y$ p8 O* \6 [' }
SysFreeString(itemStr); 5 G+ g; R& k$ w* o0 w4 l" O SysFreeString(valueStr);8 r9 z: b, S/ t8 W7 @. l
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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???7 _. s# ^: h/ M5 Y" f* `
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????; N5 g" \3 r; E3 D4 E T( b4 b
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2.这是request的程序; ?# k5 v9 }8 ~2 u& p
// Request a value from Extend 6 N0 \" V8 m) G* L$ F9 R//! W' ?6 _) e, k+ x) o$ Y! K
// Initialize the variant that will hold the BSTR. Set the variant's4 ^& R/ K q& p/ b$ ^$ y* K
// type flag to indicate the fact that this variant holds a BSTR. Place the1 O) V- U' w1 | b9 p, \2 ]
// BSTR into the variant structure., S% E& J2 ?0 F, d
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! [' |* b% R& \6 ]+ H