https://zhidao.baidu.com/question/2116834779399609987.html
[DllImport(
"user32.dll"
, EntryPoint =
"ReleaseCapture"
)]
public
static
extern
void
ReleaseCapture();
[DllImport(
"user32.dll"
, EntryPoint =
"SendMessage"
)]
public
static
extern
void
SendMessage(
int
hwnd,
int
wMsg,
int
wParam,
int
lParam);
把上面语句加载窗体类文件中,然后在拖拽的控件上加事件,比如我是一个panel
private void panelForm_MouseDown( object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
ReleaseCapture();
SendMessage(( int )移动的对象.Handle, 0xA1, 2, 0);
//是窗体自身就是
//SendMessage((int)this.Handle, 0xA1, 2, 0);
//panel就是SendMessage((int)panel1.Handle, 0xA1, 2, 0);
}
}
|
这种才是windows标准的拖拽事件,下面那位,拖动的时候窗体会闪烁不停,一直在渲染背景