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public partial class Form1 : Form
{
Bitmap m_Bitmap = null;
Bitmap m_Bitmap2 = null;
Graphics m_grap = null;
Graphics m_windowG = null;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
m_Bitmap = new Bitmap(this.Width, this.Height);
m_Bitmap2 = new Bitmap(this.Width, this.Height);
m_grap = Graphics.FromImage(m_Bitmap);
m_grap.Clear(Color.Blue);
m_windowG = this.CreateGraphics();
}
private void button1_Click(object sender, EventArgs e)
{
//m_grap.DrawImage(m_Bitmap2, 0, 0);
m_windowG.DrawImage(m_Bitmap, 0, 0);
}
private void button1_Click(object sender, EventArgs e)
{
using(var graphics = this.CreateGraphics())
{
//m_grap.DrawImage(m_Bitmap2, 0, 0);
graphics.DrawImage(m_Bitmap, 0, 0);
}
}