c#中用鼠标画矩形框的插件.dll文件是哪个

暖若东风 · 发表于 2015-4-24 11:12:16

求大神指点，就是代码里的那几个mouseDown、MouseUp什么的

private bool mouseStatus = false;
private List<Rectangle> rectList = new List<Rectangle>();
private Point startPoint;
private Point endPoint;
private Rectangle currRect;
private int minStartX, minStartY, maxEndX, maxEndY;
private void Form1_MouseDown(object sender, MouseEventArgs e)
{
mouseStatus = true;
startPoint.X = e.X;
startPoint.Y = e.Y;
}
private void Form1_MouseMove(object sender, MouseEventArgs e)
{
if (mouseStatus)
{
endPoint.X = e.X; endPoint.Y = e.Y;
int realStartX = Math.Min(startPoint.X, endPoint.X);
int realStartY = Math.Min(startPoint.Y, endPoint.Y);
int realEndX = Math.Max(startPoint.X, endPoint.X);
int realEndY = Math.Max(startPoint.Y, endPoint.Y);
minStartX = Math.Min(minStartX, realStartX);
minStartY = Math.Min(minStartY, realStartY);
maxEndX = Math.Max(maxEndX, realEndX);
maxEndY = Math.Max(maxEndY, realEndY);
currRect = new Rectangle(realStartX, realStartY, realEndX - realStartX, realEndY - realStartY);
Rectangle refeshRect = new Rectangle(minStartX, minStartY, maxEndX - minStartX, maxEndY - minStartY);
refeshRect.Inflate(1, 1);
this.Invalidate(refeshRect);
}
}
private void Form1_MouseUp(object sender, MouseEventArgs e)
{
mouseStatus = false;
endPoint.X = e.X; endPoint.Y = e.Y;
int realStartX = Math.Min(startPoint.X, endPoint.X);
int realStartY = Math.Min(startPoint.Y, endPoint.Y);
int realEndX = Math.Max(startPoint.X, endPoint.X);
int realEndY = Math.Max(startPoint.Y, endPoint.Y);
currRect = new Rectangle(realStartX, realStartY, realEndX - realStartX, realEndY - realStartY);
rectList.Add(currRect);
this.Invalidate();
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
Graphics g = e.Graphics;
g.Clear(this.BackColor);
g.DrawRectangle(new Pen(Color.Red, 1), currRect);
foreach (Rectangle rect in rectList)
g.DrawRectangle(new Pen(Color.Red, 1), rect);
}

复制代码

zw7436 · 发表于 2018-1-15 13:58:26

水.............................................

不知道 · 发表于 2018-11-3 09:44:55

那个是C++的橡皮筋类 CRectTracker;

stevemeng · 发表于 2019-2-7 11:50:17

先要自己分析一下，然后讲出哪里看不懂，才会有人回答你。
坐等别人喂食，会饿死你的，

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