MFC maximizes taskbar display

Today 2016-07-23 13:26:24 again to handle the bug that the window taskbar hides when maximized.

It's already in front.

struct {  // without  // maximum range  // maximum drop point  // Minimum drag range  // maximum drag range } Minmaxinfo;

http://blog.csdn.net/whh_1218/article/details/8495649: Here's the method, feel the lack of what, some variables do not know. Also know how to deal with the ongetminmaxinfo () message function.

voidMaindialog::ongetminmaxinfo (Minmaxinfo far*Lpmmi) {    //todo:add your message handler code here and/or call default//lpmmi->ptmaxsize.y = GetSystemMetrics (sm_cyfullscreen) + getsystemmetrics (sm_cycaption) + GetSystemMetrics (SM _cydlgframe);CRect RT; SystemParametersInfo (Spi_getworkarea,0, &rt,0); Lpmmi->ptmaxsize.x =Rt.    Width (); Lpmmi->ptmaxsize.y =Rt.    Height (); Lpmmi->ptmaxtracksize.x =Rt.    Width (); Lpmmi->ptmaxtracksize.y =Rt.    Height (); Cdialog::ongetminmaxinfo (Lpmmi);}

This effect, when the vertical is not good, the size of the window is determined, but the upper left corner of the coordinate is not right!

Then study, determine the size of the task bar method, think really to divide the situation, discuss the size of the window.

To get the desktop workspace size, which does not include the size of the taskbar, it is often used when making a full-screen window, as follows:

RECT RT; SystemParametersInfo (Spi_getworkarea,0, (PVOID) &rt,0);

CRect rect;
:: GetWindowRect (:: FindWindow (_t ("Shell_traywnd"), NULL), &rect); Getting the taskbar size

There are two ways to get the height and width of the taskbar:

1. Judge position rect RT; SystemParametersInfo (Spi_getworkarea,0, &rt,0)//Get workspace size//taskbar at the height below  inty =:: GetSystemMetrics (Sm_cyscreen)-Rt. Height ();inty = rt.top;//above  inty = rt.left;//left  inty =:: GetSystemMetrics (Sm_cxscreen)-rt. Width ();//Right

2the height can then be judged by the position CRect rect; CWnd*pwndprev= FindWindow ("Shell_traywnd","");//call this object, which is the FindWindow function of this, to return the window pointerPwndprev->getwindowrect (&rect); //Rect.bottom-rect.top is the height of the taskbar.if(rect.top>0)//belowif(rect.left>0)//leftor CWnd .* p =NULL; HWND hwnd=:: FindWindow ("Shell_traywnd", NULL);//Call the public FindWindow function to return the window handle       if(HWND) {p=Cwnd::fromhandle (HWND); } P->getwindowrect ();//contains a width

Finally suddenly want to take since SystemParametersInfo (Spi_getworkarea, 0, &rt, 0); all get the size of the work form, directly movewindow (RT); that's it. It's just a bug when you move back, but it's acceptable.

Once again proves that sometimes, can not just set other people's method, oneself still must move the brain, uses own method to realize. To believe in yourself, there are ideas that can work.

MFC maximizes taskbar display