我想放大或使用鼠标轮在C#。怎么我可以做缩小一个图像PictureBox的?
Answer 1:
本主题有助于放大和缩小图片的图片框
添加以下代码PictureBox的鼠标滚轮事件内
if (e.Delta != 0) {
if (e.Delta <= 0) {
//set minimum size to zoom
if (PictureBox1.Width < 50)
return;
} else {
//set maximum size to zoom
if (PictureBox1.Width > 500)
return;
}
PictureBox1.Width += Convert.ToInt32(PictureBox1.Width * e.Delta / 1000);
PictureBox1.Height += Convert.ToInt32(PictureBox1.Height * e.Delta / 1000);
}
Answer 2:
使用鼠标滚轮事件: http://msdn.microsoft.com/fr-fr/library/system.windows.forms.control.mousewheel%28v=vs.80%29
文章来源: How to zoom-in and zoom-out a image in picturebox using mouse wheels in c#?