C# WINFORM 捕获最小化事件
2016-03-07 15:14
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C# WINFORM 捕获最小化事件
虽然Form类没有提供Minimize的事件,但还是可以通过重载Deactive来实现当Form失去焦点后,测试WindowState取得Form状态,若为Minimized既是最小化事件。
本例为最小化后隐藏窗口:
![](http://limon7.cnblogs.com/Images/OutliningIndicators/None.gif)
private void Form1_Deactivate(object sender, EventArgs e)
![](http://limon7.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
{
![](http://limon7.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
if (this.WindowState == FormWindowState.Minimized)
![](http://limon7.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
this.Visible = false;
![](http://limon7.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
还有种方法更加直接,重载WndProc:
![](http://limon7.cnblogs.com/Images/OutliningIndicators/None.gif)
const int WM_SYSCOMMAND = 0x112;
![](http://limon7.cnblogs.com/Images/OutliningIndicators/None.gif)
const int SC_CLOSE = 0xF060;
![](http://limon7.cnblogs.com/Images/OutliningIndicators/None.gif)
const int SC_MINIMIZE = 0xF020;
![](http://limon7.cnblogs.com/Images/OutliningIndicators/None.gif)
const int SC_MAXIMIZE = 0xF030;
![](http://limon7.cnblogs.com/Images/OutliningIndicators/None.gif)
protected override void WndProc(ref Message m)
![](http://limon7.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
{
![](http://limon7.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
if (m.Msg == WM_SYSCOMMAND)
![](http://limon7.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
{
![](http://limon7.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
if (m.WParam.ToInt32() == SC_MINIMIZE)
![](http://limon7.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
{
![](http://limon7.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
this.Visible = false;
![](http://limon7.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
return;
![](http://limon7.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://limon7.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://limon7.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
base.WndProc(ref m);
![](http://limon7.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
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