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: + X: y* b. C+ iName = (WCHAR *) L"Poke"; 7 W6 E% a4 f0 q) K) }5 V, x 4 N5 U+ S3 J+ l9 W W
hr = m_pDisp->GetIDsOfNames ( , r- r# v! {! [ IID_NULL, // reserved ! _' Q: b! J; ]$ Z. F &Name, // Array of names to get IDs for X( m4 I9 F% t 1, // # of names in the array 1 }- b! _* @+ _7 b1 K6 g LOCALE_SYSTEM_DEFAULT, // System locale 2 K2 M6 n% ~# {: X6 Y5 y &pokeID); // Array of IDs to fill on output # L+ D0 A( m% `3 Z3 H9 y ' B. U2 {/ n* O6 k1 A0 v9 G
if (hr)" u. Z0 [+ Y& @- ?. V8 v! {
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MessageBox ("Get Poke Unsuccessful");- A+ F+ K& v0 n4 M8 u
return;& n7 [$ C5 I" m8 V! S" l5 {
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/**************************传递数据给extend**************************************/ ! a% f$ q' {8 @7 P. A G1 U& ` pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 B6 R8 c9 k3 }- d% G, \: i 1 z( j6 X3 ~8 S* E# b" J: P0 c" @
valueStr = SysAllocString((WCHAR *) L"1232");4 [8 @$ s- e4 ?0 c! k
VariantInit(&pokeVariant[0]); - m# e e( @- ]) F R6 w pokeVariant[0].vt = VT_BSTR;' J$ z8 w0 ?0 D: e8 P5 [5 J
pokeVariant[0].bstrVal = valueStr;, L \+ N: j% X$ n2 [
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 E3 j6 Z" L2 z/ E0 P% @
VariantInit(&pokeVariant[1]); 6 A5 Y! k( E" o+ c" Q pokeVariant[1].vt = VT_BSTR;4 C$ ~/ M# E+ F% ]
pokeVariant[1].bstrVal = itemStr;* S+ C/ r3 {" s; m* s8 |
9 S' E( U) E5 c7 n$ ` topicStr = SysAllocString((WCHAR *) L"system");# k2 T3 ]% v5 A# V
VariantInit(&pokeVariant[2]); & P2 X# F/ s ] pokeVariant[2].vt = VT_BSTR; 3 @& l' J( g$ F0 e$ Y5 [ pokeVariant[2].bstrVal = topicStr; # \. M& D' V2 F1 f: i. F5 n6 j( o7 i M
// Set the DISPPARAMS structure that holds the variant.0 L3 R7 B1 g. e% R1 s/ `5 X
1 F% S+ T7 H3 w$ B5 q dp.rgvarg = pokeVariant; ) n; D2 C$ B# b3 U1 @ dp.cArgs = 3; ! z: L. l- s- s8 ]5 g) K dp.rgdispidNamedArgs = NULL;, |$ v# @ v0 J& i: V! O! W
dp.cNamedArgs = 0;, a( f/ @! j9 A
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// Call IDispatch::Invoke() # B3 @- q" t; d$ C3 r4 ~ B- N! Y+ k
hr = m_pDisp->Invoke( - o" v% C7 Z4 k2 A pokeID, 4 ^7 f9 ?- U! F C, ^' b$ } IID_NULL,% M( x+ O4 @+ O, C+ h; _, Y
LOCALE_SYSTEM_DEFAULT,5 U4 M, H/ X% W, ?, @# Z
DISPATCH_METHOD,2 `& w: G$ M- Q7 S+ k: t. B3 @
&dp, 2 g) | C0 s) b NULL, - \2 W. K6 ? X &ei,( m7 U1 y4 C+ }1 W, R' v
&uiErr);, e3 Q! I7 _, t3 q
8 ?& }6 J8 W$ u; f5 O SysFreeString(topicStr); ; q+ B# _" N0 V$ Y1 a SysFreeString(itemStr); ' i6 K& W% u1 q0 Z1 ^5 w+ `( b SysFreeString(valueStr);/ r% K1 F9 `. T* ]0 E
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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???& \2 Q: [3 @( O% @, m
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???? ( }1 V; `. O" r9 F R/ H+ f! d* j, O2 ^4 ]9 E9 H3 _; J; K
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2.这是request的程序 9 r. `; V7 e" X' g+ q) x// Request a value from Extend 7 O, d) X' A7 A7 z8 y4 [// ( C: U, k' I/ p; u8 p9 k6 y* M4 W* d) Y// Initialize the variant that will hold the BSTR. Set the variant's : j& ]7 T0 \7 @4 F% s- W6 a// type flag to indicate the fact that this variant holds a BSTR. Place the ' s( l8 g) u) V1 f) X- ~0 X7 [// BSTR into the variant structure. : u- H" x7 w7 @$ |1 l8 ~+ j" p) n4 S2 c2 e
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); " Z1 j( s/ u7 ? % {" r( o0 n- a( A itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 P, v# \# B, D' d! ]* D8 g6 B5 k VariantInit(&requestVariant[0]); * C! n; X2 g! w2 ` C4 l requestVariant[0].vt = VT_BSTR;9 {3 a+ q% l8 ]
requestVariant[0].bstrVal = itemStr;# u& K: w: f. c. F
& m7 d, I8 W# V topicStr = SysAllocString((WCHAR *) L"system");* v' r/ n# Y# A3 G
VariantInit(&requestVariant[1]); . A" B( f; [# M requestVariant[1].vt = VT_BSTR;# _9 j2 [8 M3 o7 B- l( G. X& H
requestVariant[1].bstrVal = topicStr; 8 L6 q9 Y# X1 k/ {9 P) o8 g5 x8 w7 K& k5 K6 p% A, v+ j
// Set the DISPPARAMS structure that holds the variant. ^9 K. ]2 [2 f/ D, M1 G2 F* L$ U& \: h) p' v1 E2 Y
dp2.rgvarg = requestVariant; ' I& {6 Z$ ?. `3 `. h; p# P dp2.cArgs = 2; 2 c+ ~- Z! o$ U j dp2.rgdispidNamedArgs = NULL;! i- [& O0 j8 r6 L& t* W
dp2.cNamedArgs = 0;- ]" q; E7 X, l+ W, {