一、实现鼠标滚轮控制图片缩放；
1、设置PixtureBox属性：
Dock：none
SizeMode：StretchImage
2、添加事件：
pbxDrawing.MouseWheel += new MouseEventHandler(pbxDrawing_MouseWheel);
private void ScrewInfoForm_Shown(object sender, EventArgs e)
{
//加载装配图纸
string drawingPath = Path.Combine(@"\\192.168.2.136\PCS", productCode + ".png");
try
{
pbxDrawing.Load(drawingPath);
}
catch (Exception ex)
{
MessageBox.Show("加载装配图纸失败,详细:" + ex.Message, "测量", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
//实现滚轮缩放
private void pbxDrawing_MouseWheel(object sender, System.Windows.Forms.MouseEventArgs e)
{
if (e.Delta < )
{
this.pbxDrawing.Width = this.pbxDrawing.Width * / ;
this.pbxDrawing.Height = this.pbxDrawing.Height * / ;
}
else
{
this.pbxDrawing.Width = this.pbxDrawing.Width * / ;
this.pbxDrawing.Height = this.pbxDrawing.Height * / ;
}
}
//实现移动图片
int xPos;
int yPos;
bool MoveFlag;
private void pbxDrawing_MouseDown(object sender, MouseEventArgs e)
{
this.pbxDrawing.Focus();
MoveFlag = true;//已经按下.
xPos = e.X;//当前x坐标.
yPos = e.Y;//当前y坐标.
} //在picturebox的鼠标按下事件里.
private void pbxDrawing_MouseUp(object sender, MouseEventArgs e)
{
MoveFlag = false;
} //在picturebox鼠标移动
private void pbxDrawing_MouseMove(object sender, MouseEventArgs e)
{
if (MoveFlag)
{
pbxDrawing.Left += Convert.ToInt16(e.X - xPos);//设置x坐标.
pbxDrawing.Top += Convert.ToInt16(e.Y - yPos);//设置y坐标.
}
}