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:, g: F- R' i4 g
Name = (WCHAR *) L"Poke"; : u8 x+ u+ e F: o/ ] 6 N+ y4 w9 `+ S w8 f9 { hr = m_pDisp->GetIDsOfNames ( + E5 a$ J& V+ s/ ~( {% D" l IID_NULL, // reserved$ ]# B/ C, Z7 Q) ~
&Name, // Array of names to get IDs for , Y1 j/ V" _0 z; ]" ^8 a 1, // # of names in the array ; E' U9 [4 u2 c- _/ z+ C- l LOCALE_SYSTEM_DEFAULT, // System locale ! m" a* }$ ?# h7 g$ |; p &pokeID); // Array of IDs to fill on output( g v, K) i) u. Q9 o! X
/ v3 p, }0 y3 c if (hr)8 o& [4 a3 V! x9 s
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MessageBox ("Get Poke Unsuccessful");6 R! c% ^! H4 w! [+ z+ U) X( F' d: l
return;% M( n1 j1 F7 x( u7 k
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/**************************传递数据给extend**************************************/% G7 }+ {7 ~' O$ O3 D
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); . t3 |. s- g% | ) ]2 e6 Y, P0 a0 ~" m valueStr = SysAllocString((WCHAR *) L"1232");# Y: h3 u! E; M; T1 J5 \
VariantInit(&pokeVariant[0]); 5 d S- ^- O" S pokeVariant[0].vt = VT_BSTR;1 X6 i) j, v' r q9 m2 l
pokeVariant[0].bstrVal = valueStr; ! `6 ]6 ]& g+ p$ v ' G& k7 H$ ^; n7 G/ F) o: Y3 } D) ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 i) k( i$ x5 j% Z VariantInit(&pokeVariant[1]); / W1 s9 f$ o. f8 n: |$ \9 y0 {
pokeVariant[1].vt = VT_BSTR; E e: H s$ }2 l6 y+ ^! r* M
pokeVariant[1].bstrVal = itemStr;& g; {$ C! b' }* Y. f! p& u4 K) a
5 W, f: d. r8 T topicStr = SysAllocString((WCHAR *) L"system");' P( c# I! w3 ]
VariantInit(&pokeVariant[2]); , m h' R5 M( y- i% z9 V pokeVariant[2].vt = VT_BSTR;- {2 s8 D) f& W" g7 U) f
pokeVariant[2].bstrVal = topicStr;+ b) @) Q5 e* W2 g
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// Set the DISPPARAMS structure that holds the variant. 1 p# O8 f- g8 E! ~) _% s' K1 q- z, \/ C% `1 U$ D' B0 W
dp.rgvarg = pokeVariant; ) X( A5 z# [' f8 U# { dp.cArgs = 3; ) m, A* n W: J dp.rgdispidNamedArgs = NULL;1 M6 a2 S: w) t; B
dp.cNamedArgs = 0;0 W$ F. \" E' _) G2 N
1 S; |/ M6 I7 N. ]$ d// Call IDispatch::Invoke()) p% N$ I q7 p- c) \' f
3 f3 }0 s+ C; O) r: ]# K( ^ hr = m_pDisp->Invoke( 1 `% \" y3 r! e F pokeID,# Q0 J. l6 ]& h5 G
IID_NULL, o6 d$ \/ u9 t LOCALE_SYSTEM_DEFAULT,7 H# z, \# _5 i, ^
DISPATCH_METHOD,* H7 }5 T2 E. s( p* ?+ B
&dp,) O0 [3 O; z' f: S/ D4 u! }- U
NULL, % z4 i3 t5 u* f) U" I! @7 G: i& M &ei, / Q c, f9 u& |) B. ~7 M &uiErr);% O6 U6 K% R1 y0 K
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SysFreeString(topicStr);7 J* s' o4 k* c4 b$ P, N
SysFreeString(itemStr); 7 k$ a9 ^! q: G( z3 ^9 W% W SysFreeString(valueStr); " F' w& w5 o M/ t# [ ' _. D$ B+ o1 o+ ^4 W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 J# {8 W) z& j' u$ \3 T9 k6 {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???? ) f- L5 ^& ~1 U' @- C ! z1 P( Q1 O9 u D, n7 P2 ?9 Y/ ^0 {6 r
2.这是request的程序" G! @3 k7 \0 B+ Z
// Request a value from Extend4 C; H( a4 a: H! y) q9 L9 [ U
// ' A' W: A2 m0 l1 ?// Initialize the variant that will hold the BSTR. Set the variant's : L3 m* Y! N/ ?( C9 G// type flag to indicate the fact that this variant holds a BSTR. Place the . |- N9 s: I0 o" s3 L2 {// BSTR into the variant structure.2 ]& G3 u) Y; D* _8 f; `+ k- Y8 P
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); : s1 J& |2 J3 }) J8 W1 t* A & }1 @( U) D3 e" w0 V
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 W0 T$ ~7 r( C4 V3 `' z
VariantInit(&requestVariant[0]); ) t. R+ ^- v$ _ requestVariant[0].vt = VT_BSTR; $ Y3 i) h4 S" L8 [2 n5 q4 y6 x requestVariant[0].bstrVal = itemStr; E/ t3 b. m" z+ m4 w $ c- ?! n6 k/ ?6 v4 X% | topicStr = SysAllocString((WCHAR *) L"system"); 0 ` R- _3 X9 ? k! `9 S0 F. x7 S VariantInit(&requestVariant[1]); - V$ _# m2 R7 b/ L& _5 |
requestVariant[1].vt = VT_BSTR; / K# }, f8 I' g0 y2 c1 |/ R requestVariant[1].bstrVal = topicStr; ) N% _7 O7 i, I; q8 y2 a1 s5 J9 B
// Set the DISPPARAMS structure that holds the variant. ! B) @; [. m5 e3 n* V" } 9 A3 ^( R$ H7 x: d dp2.rgvarg = requestVariant;. D5 {$ C( j ^& I1 @
dp2.cArgs = 2;0 G5 s2 ]2 h. i; T T( q/ z$ u4 ~
dp2.rgdispidNamedArgs = NULL; ; ]. D1 Q M+ p( @2 [ dp2.cNamedArgs = 0; 7 B/ ~5 C- p' j9 ?# c. d - G/ i0 Z- `& E( K, |! Q var.vt = VT_EMPTY;) v8 |$ i9 |6 v" s
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// Call IDispatch::Invoke() 6 v3 d/ i- w7 \. u. _( l - U; A3 l+ p* f6 Q3 L0 m) P hr = m_pDisp->Invoke( 0 H7 j, A1 @" x$ x0 R% z+ H6 W- n requestID,' D' h' p w6 t0 r- i. [
IID_NULL, 1 Y1 s, a2 ~5 F LOCALE_SYSTEM_DEFAULT,8 f; w" D! ~ L
DISPATCH_METHOD,2 U& W s$ ?, P) e' C9 W
&dp2, - y9 p/ n2 S* K [& s$ ] &var, 5 y2 ]1 W! n% Q0 r4 D &ei, 0 Z# b: g7 @: E1 g$ A. E/ B3 P: h: n &uiErr); & S7 F! a* W4 @" ] R, J+ B$ L/ J6 |( R" B0 I) Y
SysFreeString(topicStr);' ~' t3 v+ m+ S) v2 h
SysFreeString(itemStr); + ^& A3 @7 c) l( ^8 G' H: |0 |请问该程序是获得extend里面的哪个值? 3 L& ~5 O6 J% l1 z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????