vc++如何写dialog的拖动事件

Question

如题

Answer 1

dialog和window有区别嘛？
POINT oldPoint;
......
case WM_LBUTTONDOWN:
{
if(wParam == MK_LBUTTON)
{
oldPoint_Can.x = LOWORD(lParam);
oldPoint_Can.y = HIWORD(lParam);
}
}
break;
case WM_LBUTTONUP:
{
if(wParam == MK_LBUTTON)
{
oldPoint_Can.x = 0;
oldPoint_Can.y = 0;
}
}
break;
case WM_MOUSEMOVE:
{
if(wParam == MK_LBUTTON)
{
RECT rc;
GetWindowRect(hWnd,&rc);
SetWindowPos(hWnd,NULL,
rc.left + LOWORD(lParam) - oldPoint_Can.x,
rc.top + HIWORD(lParam) - oldPoint_Can.y,
NULL,NULL,SWP_NOZORDER|SWP_NOSIZE|SWP_NOACTIVATE);
}
}
......

Answer 2

获取鼠标移动的事件，得到一个x，y坐标，然后调用MoveWindow函数或者SetWindowPos函数来进行设置
当然，你还要获取一下你本身的对话框的一个大小，免得大小发生改变

Answer 3

获取Dialog句柄hDlg;
OnLButtonDown(...)
{
 ...
 SendMessage(hDlg,WM_SYSTEMCOMMAND,61458,0);
 ...
}

Answer 4

由于楼主题目有歧义，故写上两种：
1,无标题对话框的拖动：OnLButtonDown中PostMessage(WM_NCLBUTTONDOWN,HTCAPTION,MAKELPARAM(point.x, point.y));
2,WM_DROPFILE消息：int nFileCount=DragQueryFile(hDropInfo,0xFFFFFFFF,NULL,0);
int nIndex=0;
while(nFileCount--)
{
TCHAR szFilePath[MAX_PATH];
memset(szFilePath,0,MAX_PATH*sizeof(TCHAR));
DragQueryFile(hDropInfo,nIndex++,szFilePath,MAX_PATH);
                ........
                //处理szFilePath 

}

Answer 5

WM_MOVING/WM_WINDOWPOSCHANGING ??