关于对话框的边框和改变对话框大小的问题。

我想把一个对话框的Border设置成None，然后还想让这个对话框能被鼠标拖动边框来改变大小，有可能吗？具体如何实现?给出代码的多给分:)

11 个解决方案

#1

估计那只有自己写代码实现了

#2

这个要自已写代码来实现.

#3

当Border设置为None的时候，窗口的非客户区就被隐藏，只剩下客户区，在这种情况下，只能通过自己的代码来实现了，

这是SDK代码

// Mesage handler for about box.
// 0- wu 1- left ,2 -right
int TestPos(int x,int y,HWND hWnd)
{
RECT rt;
GetClientRect(hWnd,&rt);
int r = 0;
if(x>=rt.right-5 && x<=rt.right+5)
r = 1;
if(y>=rt.bottom-5 && y<=rt.bottom+5)
r |= 2;
return r;
}
LRESULT CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
static int _moving = 0;
static HCURSOR _hhrMov[3]={LoadCursor(NULL,IDC_SIZEWE),LoadCursor(NULL,IDC_SIZENS),LoadCursor(NULL,IDC_SIZENWSE)};
switch (message)
{
case WM_INITDIALOG:
return TRUE;

case WM_COMMAND:
if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
{
EndDialog(hDlg, LOWORD(wParam));
return TRUE;
}
break;
case WM_MOUSEMOVE:
if(_moving==3)
{
SetWindowPos(hDlg,NULL,0,0,LOWORD(lParam),HIWORD(lParam),SWP_NOZORDER|SWP_NOMOVE);
SetCursor(_hhrMov[2]);
}
else if(_moving)
{
RECT rt;
GetClientRect(hDlg,&rt);
SetWindowPos(hDlg,NULL,0,0,_moving&1?LOWORD(lParam):rt.right,_moving&2?HIWORD(lParam):rt.bottom,SWP_NOZORDER|SWP_NOMOVE);
SetCursor(_hhrMov[_moving-1]);
}
else
{
int mov = TestPos(LOWORD(lParam),HIWORD(lParam),hDlg);
if(mov)
SetCursor(_hhrMov[mov-1]);
}
break;
case WM_LBUTTONDOWN:
_moving = TestPos(LOWORD(lParam),HIWORD(lParam),hDlg);
if(_moving){
//_pt = {GET_X_LPARAM(lParam,)GET_Y_LPARAM(lParam)};
SetCapture(hDlg);
SetCursor(_hhrMov[_moving-1]);
}
break;
case WM_LBUTTONUP:
if(_moving){
_moving = 0;
ReleaseCapture();
}
break;
}
return FALSE;
}

#4

自己响应鼠标消息，加上MoveWindow/SetWindowPos来实现。

#5

给出个思想吧,应该可以实现的，楼主试试
LBUTTONDOWN里边设置一个变量例如FLAG当左键点下是为真
LBUTTONUP里边 FLAG＝false
MOUSEMOVE里边
crect rect；
取得原先窗口的rect
hWnd->SetWindowPos(NULL,rect.left,rect.top,(point.x-rect.left),(point.y-rect.top))

#6

这句可以是
AfxGetMainWnd（）->SetWindowPos(NULL,rect.left,rect.top,(point.x-rect.left),(point.y-rect.top))（好像是这么写的 ^_^）

#7

****************************************************************
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接着，她们全部脱光衣服，一个个扑向了楼主。
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****************************************************************
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......一周过去了，电线杆子和墙上贴满了寻人启事，楼主因不明
原因失踪。一个月后，有人在一个地窖里发现了楼主的尸体，
身边有一块牌匾，上边写着：有分不给FallInLoveAt2005的后果。
****************************************************************
从此，“有分就给FallInLoveAt2005”已成为一个在世上流传已久的佳话

#8

大家的建议都很好，正在验证中。。。

#9

这儿是另外一种稍微简单一点的方法：
http://sluttery.spaces.live.com/blog/cns!3569FEA80C717FD4!3531.entry

#10

To:dandycheung(珠穆朗玛)
多谢指点！

#11

我可以完全帮你实现，只要实现WM_NCHITTEST,WM_SETCURSOR,WM_NCLBUTTONDOWN这几个消息就行了

UINT CXXXDlg::OnNcHitTest(UINT nHitTest, CPoint point)
{
CRect rect;
GetWindowRect(&rect);
if(point.x <= rect.left+3)
return HTLEFT;
else if(point.x >= rect.right-3)
return HTRIGHT;
else if(point.y <= rect.top+3)
return HTTOP;
else if(point.y >= rect.bottom-3)
return HTBOTTOM;
else if(point.x <= rect.left+10 && point.y <= rect.top+10)
return HTTOPLEFT;
else if(point.x >= rect.right-10 && point.y <= rect.top+10)
return HTTOPRIGHT;
else if(point.x <= rect.left+10 && point.y >= rect.bottom-10)
return HTBOTTOMLEFT;
else if(point.x >= rect.right-10 && point.y >= rect.bottom-10)
return HTBOTTOMRIGHT;
else
return 0;
}

BOOL CXXXDlg::OnSetCursor(HWND hWnd, UINT nHitTest, UINT message)
{
if(nHitTest == HTCAPTION || nHitTest == HTSYSMENU ||
nHitTest == HTMENU || nHitTest == HTCLIENT)
{
SetCursor(LoadCursor(NULL, MAKEINTRESOURCE(IDC_ARROW)));
}
else if(nHitTest == HTTOP || nHitTest == HTBOTTOM)
{
SetCursor(LoadCursor(NULL, MAKEINTRESOURCE(IDC_SIZENS)));
}
else if(nHitTest == HTLEFT || nHitTest == HTRIGHT)
{
SetCursor(LoadCursor(NULL, MAKEINTRESOURCE(IDC_SIZEWE)));
}
else if(nHitTest == HTTOPLEFT || nHitTest == HTBOTTOMRIGHT)
{
SetCursor(LoadCursor(NULL, MAKEINTRESOURCE(IDC_SIZENWSE)));
}
else if(nHitTest == HTTOPRIGHT || nHitTest == HTBOTTOMLEFT)
{
SetCursor(LoadCursor(NULL, MAKEINTRESOURCE(IDC_SIZENESW)));
}
else
{
SetCursor(LoadCursor(NULL, MAKEINTRESOURCE(IDC_ARROW)));
}
}

void CXXXDlg::OnNcLButtonDown(UINT nHitTest, CPoint point)
{
if(nHitTest == HTTOP)
SendMessage(m_hWnd, WM_SYSCOMMAND, SC_SIZE | WMSZ_TOP, MAKELPARAM(point.x, point.y));
else if(nHitTest == HTBOTTOM)
SendMessage(m_hWnd, WM_SYSCOMMAND, SC_SIZE | WMSZ_BOTTOM, MAKELPARAM(point.x, point.y));
else if(nHitTest == HTLEFT)
SendMessage(m_hWnd, WM_SYSCOMMAND, SC_SIZE | WMSZ_LEFT, MAKELPARAM(point.x, point.y));
else if(nHitTest == HTRIGHT)
SendMessage(m_hWnd, WM_SYSCOMMAND, SC_SIZE | WMSZ_RIGHT, MAKELPARAM(point.x, point.y));
else if(nHitTest == HTTOPLEFT)
SendMessage(m_hWnd, WM_SYSCOMMAND, SC_SIZE | WMSZ_TOPLEFT, MAKELPARAM(point.x, point.y));
else if(nHitTest == HTTOPRIGHT)
SendMessage(m_hWnd, WM_SYSCOMMAND, SC_SIZE | WMSZ_TOPRIGHT, MAKELPARAM(point.x, point.y));
else if(nHitTest == HTBOTTOMLEFT)
SendMessage(m_hWnd, WM_SYSCOMMAND, SC_SIZE | WMSZ_BOTTOMLEFT, MAKELPARAM(point.x, point.y));
else if(nHitTest == HTBOTTOMRIGHT)
SendMessage(m_hWnd, WM_SYSCOMMAND, SC_SIZE | WMSZ_BOTTOMRIGHT, MAKELPARAM(point.x, point.y));}

#1