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:" R; a% Y* W5 x& f' f, r
Name = (WCHAR *) L"Poke"; 1 x; a+ A. C1 _ ) e+ u2 L5 K% K
hr = m_pDisp->GetIDsOfNames (* P# C- A, R0 x
IID_NULL, // reserved5 ?% Y) j* H8 M! I$ j1 d
&Name, // Array of names to get IDs for1 A5 g! `9 m# @- u
1, // # of names in the array; f r/ ~' c( A5 ?6 C) m
LOCALE_SYSTEM_DEFAULT, // System locale B* Q |/ p! I$ s9 U &pokeID); // Array of IDs to fill on output - M; D# y: W8 B5 g5 z 2 R3 S; Q$ [9 Z& k
if (hr) 9 w% ^1 e' T) S- ?% ?7 [ {& b* M0 ]0 G1 R4 C, Y2 R; X; ?& {
MessageBox ("Get Poke Unsuccessful");7 X4 {8 p. \0 C' z k( _
return; E; C. K7 h1 } V* M% K5 f1 ~ }" h; b: @; r! Y! O. T; v
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/**************************传递数据给extend**************************************/ c% f/ e; S$ a( R' W pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);( k. i+ W# D; m1 R: F
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valueStr = SysAllocString((WCHAR *) L"1232"); 9 j" J- z* L7 l1 c. S1 S) h, L( c VariantInit(&pokeVariant[0]); , y# U- ]6 S$ R, v# C" G4 } pokeVariant[0].vt = VT_BSTR; ; r9 q% m: n. D6 x7 C2 T- b pokeVariant[0].bstrVal = valueStr; # Q+ C+ O5 p4 K) c7 i F ( [# G# E% J, i itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* ^7 B' }1 V* Q% W" v0 Q
VariantInit(&pokeVariant[1]); & J. Z- D. C& S3 _6 B' F. z/ u
pokeVariant[1].vt = VT_BSTR;+ l) l' `2 g" J2 Y
pokeVariant[1].bstrVal = itemStr;( A9 \! R" X2 W+ T- w/ s
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topicStr = SysAllocString((WCHAR *) L"system"); 6 z& }6 r& S S- F9 I3 O VariantInit(&pokeVariant[2]); 4 K# F0 o) y' f pokeVariant[2].vt = VT_BSTR; . R! P' Z5 f/ S pokeVariant[2].bstrVal = topicStr;9 [: n1 F2 V# ^8 Z& y
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// Set the DISPPARAMS structure that holds the variant. + V) N3 C/ {/ c: {! v6 q) Q2 R: C& Q7 l
dp.rgvarg = pokeVariant; R- m* L& j+ K2 J, s9 U3 x
dp.cArgs = 3;# c5 P! U; S& c/ m& A* U8 m" |
dp.rgdispidNamedArgs = NULL; % o1 H! Y% t0 ~! ^3 L dp.cNamedArgs = 0; ( ~( p& ?1 A6 N9 [8 F' s2 j6 u, E
// Call IDispatch::Invoke() ; L4 @9 D+ h; ?- Z: j) X 9 L3 A, F O M+ ]5 z: } hr = m_pDisp->Invoke(5 k, i; o" I% H& e; ^
pokeID,9 k% L, D. C% `+ r, ^
IID_NULL, ' p. ^3 k% M1 F0 U5 { LOCALE_SYSTEM_DEFAULT, 6 d$ ~" _! b: b8 _1 p DISPATCH_METHOD, 3 X- ^/ I2 o' n! t6 E &dp, 5 C1 Z4 r& Q1 O/ t. i H NULL, 5 ~' F9 [+ A- f g3 n &ei, 7 o+ I. U8 z* \5 w8 p2 Z &uiErr);: q* m( a3 r$ O8 _# X
' _9 i" V& ~8 T- T1 E E! F SysFreeString(topicStr); 4 `4 i1 @ c3 n4 r SysFreeString(itemStr); 6 j; b) B, I+ |( F( |. d- K6 ]3 k9 e SysFreeString(valueStr); % P+ a7 e/ U; K, B" S9 e p6 x( q6 \; A% c
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 a( h& e( t% R, d9 Y
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% K/ y- y' f
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2.这是request的程序 ' g$ X& J( {' f# O// Request a value from Extend 8 Q& L# r0 H9 C0 g/ l- q1 v5 W//8 d" e- u$ B. c+ q
// Initialize the variant that will hold the BSTR. Set the variant's . R0 \+ f6 r" Z// type flag to indicate the fact that this variant holds a BSTR. Place the) [+ \$ Z6 v5 f* z" r. |
// BSTR into the variant structure.. S3 ?1 |) K: W3 N+ [" ^* a; C
/ M5 ?/ ?* @% Q6 ]& ^ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 0 p# @* J! x* ? U2 K6 D+ y5 x ; H% \. f, T: F2 G
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( S, \) M) q! @' ` i* d2 B VariantInit(&requestVariant[0]); ) a3 d: Y1 b& r: _
requestVariant[0].vt = VT_BSTR;( [' E1 i1 q e, ?- ^/ h
requestVariant[0].bstrVal = itemStr;* b. a- L L, I0 N
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topicStr = SysAllocString((WCHAR *) L"system");2 D% n, @7 x* r* Q, g9 X' ^ F- Z
VariantInit(&requestVariant[1]); , V* L# L# |8 {8 j; B
requestVariant[1].vt = VT_BSTR; N6 B* Q2 E; S4 B* @# i& [
requestVariant[1].bstrVal = topicStr; ) @7 P1 v6 b t' b/ G6 r8 T. P* D 5 ]7 J" a* ]/ m* N0 _+ c+ `% y1 i// Set the DISPPARAMS structure that holds the variant.1 ~$ t- v) L' H' r# Y5 t3 D