窗体单击最大化按钮就全屏，怎么设置能正常情况呢？

Question

大家看看我的代码，哪里有问题，如果错误太多的话，请重写一下！
void CMainFrame::SetFullScreenMode(bool bFullMode) // 全屏显示
{

int cxScreen = GetSystemMetrics(SM_CXSCREEN);
int cyScreen = GetSystemMetrics(SM_CYSCREEN); if((CConfig::m_RunMode == 2)|| (cxScreen <1024 && cyScreen<768))
{
LONG style = ::GetWindowLong(m_hWnd,GWL_STYLE);
style &= ~WS_CAPTION;
    ::SetWindowLong(m_hWnd,GWL_STYLE,style); style = ::GetWindowLong(m_hWnd,GWL_EXSTYLE);
style |= WS_EX_TOPMOST;
::SetWindowLong(m_hWnd,GWL_EXSTYLE,style);

SetWindowPos(&CWnd::wndTopMost,-2,-4,cxScreen+4,cyScreen+7,SWP_SHOWWINDOW);
}
else
{
SetWindowPos(NULL,cxScreen/2-400,cyScreen/2-350,800+GetSystemMetrics(SM_CXSIZEFRAME)*2+2,543+GetSystemMetrics(SM_CYSIZE) + GetSystemMetrics(SM_CYFRAME)+9,SWP_SHOWWINDOW);
}

}

Answer 1

响应  WM_GETMINMAXINFO 
void CMyDlgBase::OnGetMinMaxInfo(MINMAXINFO FAR* lpMMI) 
{

CRect rcMax; 
SystemParametersInfo(SPI_GETWORKAREA, NULL, (PVOID)&rcMax, 0); 
lpMMI->ptMaxPosition.x = rcMax.left; 
lpMMI->ptMaxPosition.y = rcMax.top; 
lpMMI->ptMaxSize.x = rcMax.Width(); 
lpMMI->ptMaxSize.y = rcMax.Height(); 
lpMMI->ptMaxTrackSize.x = rcMax.Width(); 
lpMMI->ptMaxTrackSize.y = rcMax.Height(); 
CDialog::OnGetMinMaxInfo(lpMMI);
}

Answer 2

你的else部分的代码反过来不就可以了void CMainFrame::SetFullScreenMode(BOOL bFullMode)
{
int cxScreen = GetSystemMetrics(SM_CXSCREEN);
int cyScreen = GetSystemMetrics(SM_CYSCREEN);

if(bFullMode)
{
LONG style = ::GetWindowLong(m_hWnd,GWL_STYLE);
style &= ~WS_CAPTION;
::SetWindowLong(m_hWnd,GWL_STYLE,style);

style = ::GetWindowLong(m_hWnd,GWL_EXSTYLE);
style |= WS_EX_TOPMOST;
::SetWindowLong(m_hWnd,GWL_EXSTYLE,style);

SetWindowPos(&CWnd::wndTopMost,-2,-4,cxScreen+4,cyScreen+7,SWP_SHOWWINDOW);
}
else
{
LONG style = ::GetWindowLong(m_hWnd,GWL_STYLE);
style |= WS_CAPTION;
::SetWindowLong(m_hWnd,GWL_STYLE,style);

style = ::GetWindowLong(m_hWnd,GWL_EXSTYLE);
style &= ~WS_EX_TOPMOST;
::SetWindowLong(m_hWnd,GWL_EXSTYLE,style);
SetWindowPos(NULL,cxScreen/2-400,cyScreen/2-350,800+GetSystemMetrics(SM_CXSIZEFRAME)*2+2,543+GetSystemMetrics(SM_CYSIZE) + GetSystemMetrics(SM_CYFRAME)+9,SWP_SHOWWINDOW);
}
}