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:# M1 L! ?/ c* A( Q2 e
Name = (WCHAR *) L"Poke"; - a! t$ D3 h! c$ d " `' b" ^2 r0 h9 _0 F
hr = m_pDisp->GetIDsOfNames (0 ]5 G0 @$ z) Z$ F0 G7 J
IID_NULL, // reserved/ f: B2 y$ `* f
&Name, // Array of names to get IDs for; E% C7 ~2 R: Y8 k
1, // # of names in the array + ?( N9 p& b$ T0 f J LOCALE_SYSTEM_DEFAULT, // System locale& `0 N' s& N. P0 R i5 u+ i
&pokeID); // Array of IDs to fill on output2 m: ^2 U5 ?+ l/ r+ a1 [% f2 b- v! d
! P5 m% q9 ?' L valueStr = SysAllocString((WCHAR *) L"1232");# Q: P7 O) a( o/ W" Y, @
VariantInit(&pokeVariant[0]); 3 P7 I" i4 Z4 G# p pokeVariant[0].vt = VT_BSTR; 7 A" [& v, _" V( X9 g/ q- ^' ` pokeVariant[0].bstrVal = valueStr; 0 l% t+ V" z) [: d4 l; w. s- {4 W& y
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 j, L" }; {1 A4 C7 o9 p. k3 q VariantInit(&pokeVariant[1]); 4 O8 k' f1 x' d! } pokeVariant[1].vt = VT_BSTR; % U7 d; B; L- i. m! U1 z pokeVariant[1].bstrVal = itemStr;, `9 o8 M% ^0 r: |; k) K
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topicStr = SysAllocString((WCHAR *) L"system"); 8 O; B2 N0 O3 T; C9 K6 K VariantInit(&pokeVariant[2]); 4 o& q0 v, x/ b, V( @# Q
pokeVariant[2].vt = VT_BSTR;0 I5 I n, H: }, l
pokeVariant[2].bstrVal = topicStr;, f F7 ?( h2 g2 s5 B- T" N
" ~0 i6 \8 i$ y/ j// Set the DISPPARAMS structure that holds the variant." {; a" J' D, u) ]8 Y* w
9 H, ?# X5 z- L, e7 E+ j7 y7 W dp.rgvarg = pokeVariant;0 r! U1 B5 _6 [1 b: q
dp.cArgs = 3;. W* V" A) F: l! e. n
dp.rgdispidNamedArgs = NULL; 8 _, @8 K4 p0 H! r dp.cNamedArgs = 0; 8 ]3 H) U: E% _2 y" r$ j 5 m9 X {6 ~. _& K& b) P// Call IDispatch::Invoke(), z2 c! N3 G- j. x2 R& x
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hr = m_pDisp->Invoke( 4 Q( f# s) s' o% l; M pokeID,% K# q8 D/ w& C& q ?0 u; e) o
IID_NULL,* `$ D/ d! M- ^" ]$ H' f
LOCALE_SYSTEM_DEFAULT,) a, V0 I) c" J
DISPATCH_METHOD, + b6 w8 M$ t3 @# K$ A' a &dp,% {. r4 k- ~/ `+ C- x
NULL,1 Q9 {4 M" A7 W# ?" g4 \" K' e. |2 X
&ei,6 @* M, [9 i0 Q" s k* S$ E
&uiErr); $ n- y% Y0 ^% @& P' H2 ?$ H% q. N, z$ O7 }; C
SysFreeString(topicStr);8 k3 D& a+ ~% V! X
SysFreeString(itemStr); ! M. x z. Y2 q2 b$ h) i SysFreeString(valueStr);6 I6 q+ v( S6 U; ^' \: ?4 T% l5 w% b
# |7 z5 m3 Q: ` q- w2 i1 K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???1 n3 L0 B6 X) e& A% r& t7 `
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???? ! V9 g( O( m% o3 R5 C" V- k) T& L+ v8 S
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2.这是request的程序 ' y h6 k7 X0 k* R/ q s8 y$ {// Request a value from Extend& D5 h( Z3 Q; g0 h
// e: v7 _# p7 ?// Initialize the variant that will hold the BSTR. Set the variant's 5 O% U; l# I' c) F( n// type flag to indicate the fact that this variant holds a BSTR. Place the 5 M d0 G. g+ n' q$ T$ P// BSTR into the variant structure." V+ p0 a( c, K* ^; K" x8 @