我创建了一个测试程序,它应该在 linux (PCLinuxOS) 下反复改变面板的背景颜色,但它并不能很好地工作。要么仅在您单击某些内容或将鼠标悬停在winform上时才更新面板的背景色,然后它就会停止,或者程序在运行一段时间后完全崩溃。
下面是带有 2 个面板、一个按钮和一个计时器的 winform 的外观:
这是它背后的代码:
namespace TestIndicator;
interface
uses
System.Drawing,
System.Collections,
System.Collections.Generic,
System.Windows.Forms,
System.ComponentModel;
type
/// <summary>
/// Summary description for MainForm.
/// </summary>
MainForm = partial class(System.Windows.Forms.Form)
private
method d_Click(sender: System.Object; e: System.EventArgs);
method timer1_Tick(sender: System.Object; e: System.EventArgs);
protected
method Dispose(disposing: Boolean); override;
public
constructor;
end;
var
TurnOnRx, TurnOnTx:Boolean;
implementation
{$REGION Construction and Disposition}
constructor MainForm;
begin
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
TurnOnRx := true;
TurnOnTx := true;
end;
method MainForm.Dispose(disposing: Boolean);
begin
if disposing then begin
if assigned(components) then
components.Dispose();
//
// TODO: Add custom disposition code here
//
end;
inherited Dispose(disposing);
end;
{$ENDREGION}
method MainForm.d_Click(sender: System.Object; e: System.EventArgs);
begin
timer1.Enabled := not timer1.Enabled;
end;
method MainForm.timer1_Tick(sender: System.Object; e: System.EventArgs);
begin
if TurnOnTx then
begin
TurnOnTx:=false;
TxLight.BackColor := Color.Red;
end
else
begin
TurnOnTx:=true;
TxLight.BackColor := Color.black;
end;
if TurnOnRx then
begin
TurnOnRx := false;
RxLight.BackColor := Color.Lime;
end
else
begin
TurnOnRx := true;
RxLight.BackColor := Color.Black;
end;
end;
end.