private void CutPic_KeyDown(object sender, KeyEventArgs e)
{
///按Esc后取消截图
if (e.KeyCode == Keys.Escape)
{
this.Close();
NormalMain?.Invoke();
}
}
private void CutPic_MouseDoubleClick(object sender, MouseEventArgs e)
{
//开始截图
//设置窗体的透明度为0
this.Opacity = 0;
//构造图片
Bitmap bit = new Bitmap(this.Width, this.Height);
Graphics g = Graphics.FromImage(bit);
//截取背景图
g.CopyFromScreen(this.Location, new Point(0, 0), bit.Size);
SaveFileDialog save = new SaveFileDialog();
//打开保存
save.ShowDialog();
bit.Save(save.FileName + ".bmp", System.Drawing.Imaging.ImageFormat.Bmp);
//截完图后,激活主窗体
NormalMain?.Invoke();
//关闭截图窗体
this.Close();
}