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TRichEdit右键滚屏
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6 M1 E1 i2 a& x$ J void __fastcall TMainForm::RichEditMouseMove(TObject *Sender,+ U$ C8 @+ ]* K1 I
TShiftState Shift, int X, int Y)+ D) W: E. Q! B0 J- a" Y
{
' z1 n% P5 v- ?* l$ z9 hif(RightButtonFlag)& v) F) {, e! i" D
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if(RightY>(Y+8)): G7 X+ O) E8 ?% M8 w# M
{
5 t+ \6 U: j5 A" Z7 dRightY=Y;
* ]. U* f. F0 S% d. V4 ~+ _% g" NSendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEDOWN, 0);& w# [9 j/ @' t, z5 O2 q, z
}
+ ]9 x5 _6 m& e6 I2 r# Velse if(RightY<(Y-8))
& _2 V; O: i3 T3 ?$ P{
+ j' J$ y& Z9 m5 V; e' hRightY=Y;) F+ l' ?; o+ B$ d( n. e, @
SendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEUP, 0);$ ^7 u" e6 e! L l4 s
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RichEditDragFlag=true;
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//--------------------------------------------------------------
/ h% q5 {4 w; `$ }+ z' O' N. Mvoid __fastcall TMainForm::RichEditMouseDown(TObject *Sender,
7 k) r, f4 m$ D3 oTMouseButton Button, TShiftState Shift, int X, int Y)6 r, G0 [2 y5 k9 D5 C
{
2 X: m3 ?* d! g, C7 g% s, Z1 x4 Cif(Button==mbRight)% U, V1 W6 L4 F" I- V, B- r
{
% y; n$ y6 y) NRightButtonFlag=true;
) C: D4 p+ A( h! h/ J9 |Screen->Cursor=crHandPoint;
2 w5 q: W2 t2 M" sRightX=X;% O# \; p* F) S: F- @6 B
RightY=Y;0 b/ I5 H/ P2 o, ^4 [$ @
SetCapture(RichEdit->Handle); z" ]' r( t! |2 R0 c
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else7 l+ z* [5 d: @3 e& e- _- e( G# t
RightButtonFlag=false;
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//--------------------------------------------------------------0 D1 P o' R, G7 g( u' o
void __fastcall TMainForm::RichEditMouseUp(TObject *Sender,- f% @4 M. H" e( D
TMouseButton Button, TShiftState Shift, int X, int Y)
# m2 K4 r4 Y# _. E! V$ U{
/ v5 F- S( e' [( n) kif(RightButtonFlag)4 Z5 }6 o' N& y* u5 Z
ReleaseCapture();
: P6 h7 d2 w M. K% kif(RichEditDragFlag)
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RightButtonFlag=false;) J" b( _. O3 d. Z8 d2 l: n
RichEditDragFlag=false;
$ |! N$ \2 q1 E: G' s9 U$ n" QScreen->Cursor=crDefault;: r3 D. `: z4 g8 @9 J( K
RichEdit-> opupMenu=NULL;$ h# _% d+ W8 w, K
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else6 h! H* i& r4 h& f \0 @& I' y* G
{
7 C! I, m: @! b" ` c9 bRichEdit->opupMenu=RichEditPopupMenu;
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发表于 2005-1-26 12:25
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