C#实现窗体全屏

方法一：适合wpf

//程序启动路径，与生成程序的exe文件在同一目录下
public string exepath = application.startuppath;
//定义窗体宽高
int screenwidth = 0;
int screenheight = 0;
screenwidth = (int)system.windows.systemparameters.primaryscreenwidth;
screenheight = (int)system.windows.systemparameters.primaryscreenheight;
// 设置全屏   
this.formborderstyle = formborderstyle.none;     //设置窗体为无边框样式
this.windowstate = formwindowstate.maximized;    //最大化窗体
this.left = 0;
this.top = 0;
this.width = screenwidth;
this.height = screenheight;
//窗体背景图
this.backgroundimage = image.fromfile(exepath + "文件名");

 

方案二：适合winform

//程序启动路径，与生成程序的exe文件在同一目录下
public string exepath = application.startuppath;
//窗口左上角位置
public point m_formautographshowpos;
//设置窗体尺寸
this.width = (int)system.windows.systemparameters.primaryscreenwidth;
this.height = (int)system.windows.systemparameters.primaryscreenheight;
this.clientsize = new system.drawing.size(width, height);

//计算初始位置
m_formautographshowpos.x = 0;
m_formautographshowpos.y = 0;
location = m_formautographshowpos;
//窗体背景图
this.backgroundimage = image.fromfile(exepath + "文件名");