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实现暂停功能时在InfoImage中显示暂停字样

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zqm
2025-10-30 09:58:59 +08:00
parent 113fef2094
commit 0f8382576d
1 changed files with 63 additions and 0 deletions
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63
Windows/CS/Framework4.0/Toprie/Toprie/Camera.cs
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@@ -93,12 +93,75 @@ namespace JoyD.Windows.CS.Toprie
{
pauseImageUpdateToolStripMenuItem.Text = "恢复图像更新";
Console.WriteLine("图像更新已暂停");
// 在InfoImage中绘制暂停字样
lock (_infoImageLock)
{
// 释放之前的InfoImage资源
if (_infoImage != null)
{
try
{
_infoImage.Dispose();
}
catch (Exception ex)
{
Console.WriteLine($"释放InfoImage资源异常: {ex.Message}");
}
}
// 创建新的InfoImage并绘制暂停字样
_infoImage = new Bitmap(BUFFER_WIDTH, BUFFER_HEIGHT);
using (Graphics g = Graphics.FromImage(_infoImage))
{
// 设置半透明背景
using (SolidBrush brush = new SolidBrush(Color.FromArgb(128, Color.Black)))
{
g.FillRectangle(brush, 0, 0, BUFFER_WIDTH, BUFFER_HEIGHT);
}
// 绘制暂停字样
using (Font font = new Font("Arial", 48, FontStyle.Bold))
using (SolidBrush textBrush = new SolidBrush(Color.Red))
{
StringFormat format = new StringFormat();
format.Alignment = StringAlignment.Center;
format.LineAlignment = StringAlignment.Center;
g.DrawString("暂停", font, textBrush, new RectangleF(0, 0, BUFFER_WIDTH, BUFFER_HEIGHT), format);
}
}
}
// 设置显示信息标志并更新UI
_isDisplayingInfo = true;
UpdateImageOnUI();
}
else
{
pauseImageUpdateToolStripMenuItem.Text = "暂停图像更新";
Console.WriteLine("图像更新已恢复");
// 清除InfoImage和显示标志
lock (_infoImageLock)
{
if (_infoImage != null)
{
try
{
_infoImage.Dispose();
_infoImage = null;
}
catch (Exception ex)
{
Console.WriteLine($"释放InfoImage资源异常: {ex.Message}");
}
}
}
_isDisplayingInfo = false;
// 立即更新UI
UpdateImageOnUI();
// 恢复时，立即停止并重新开始图像接收，确保获取最新图像
if (_isReceivingImage && _deviceManager != null)
{