vc对话框全屏

void CDlg::FullScreen()
{
ModifyStyle(WS_CAPTION,0,0);


int frameWidth =  GetSystemMetrics(SM_CXFRAME);
int frameHeight = GetSystemMetrics(SM_CYFRAME);
int captionHeight = GetSystemMetrics(SM_CYCAPTION);
int screenWidth = GetSystemMetrics(SM_CXSCREEN);
int screenHeight = GetSystemMetrics(SM_CYSCREEN);
CRect rect;
GetClientRect(&rect);
rect.left = rect.left - frameWidth;
rect.top = rect.top - frameHeight - captionHeight ;
rect.bottom = rect.top + screenHeight + 2 * frameHeight + captionHeight;
rect.right = rect.left + screenWidth + 2 * frameWidth;
ShowWindow(SW_HIDE);
SetWindowPos(&wndTopMost, 0, 0, rect.Width(), rect.Height(), SWP_SHOWWINDOW);
}