// Notify its parent that the form is closed
public bool NotifyParentFormClosed()
{
if (hParentWnd == IntPtr.Zero)
{
return(false);
}
IMCWin32API.PostMessage(hParentWnd, WM_IMC_FORM_CLOSED, IntPtr.Zero, IntPtr.Zero);
return(true);
}
static public bool GetWindowSize(IntPtr hWnd, out int nWndX, out int nWndY)
{
nWndX = nWndY = 0;
if (hWnd == IntPtr.Zero)
{
return(false);
}
IMCWin32API.RECT rcWnd = new IMCWin32API.RECT();
IMCWin32API.GetWindowRect(hWnd, out rcWnd);
nWndX = rcWnd.right - rcWnd.left + 1;
nWndY = rcWnd.bottom - rcWnd.top + 1;
return(true);
}
// Move window the topmost in z-order
static public bool SetWindowZOrder(IntPtr hWnd, IntPtr hWndInsertAfter)
{
if (hWnd == IntPtr.Zero)
{
return(false);
}
bool bSuccess = IMCWin32API.SetWindowPos(
hWnd,
hWndInsertAfter,
0,
0,
0,
0,
IMCWin32API.SWP_NOMOVE | IMCWin32API.SWP_NOSIZE
);
return(true);
}
protected static unsafe string ConvertByte2String(byte *pData, int nSize, out int nRealSize)
{
String strConvert = String.Empty;
nRealSize = 0;
if (nSize == 0)
{
return(strConvert);
}
byte[] byDataTmp = new byte[nSize];
unsafe
{
fixed(byte *pDataTmp = byDataTmp)
{
IMCWin32API.CopyMemory(pDataTmp, pData, (uint)nSize);
strConvert = ConvertByte2String(byDataTmp, nSize, out nRealSize);
}
}
return(strConvert);
}
// The main thread still handle the message while waiting for a worker thread
static public void WaitForWorkerThread(IntPtr hEvtWait, UInt32 dwMilliSec)
{
if (hEvtWait == IntPtr.Zero)
{
return;
}
IMCWin32API.MSG msg = new IMCWin32API.MSG();
while (true)
{
UInt32 nRes = IMCWin32API.WaitForSingleObject(hEvtWait, dwMilliSec);
if (nRes == IMCWin32API.WAIT_OBJECT_0)
{
break;
}
if (IMCWin32API.PeekMessage(out msg, IntPtr.Zero, 0, 0, IMCWin32API.PM_REMOVE))
{
IMCWin32API.TranslateMessage(ref msg);
IMCWin32API.DispatchMessage(ref msg);
}
}
IMCWin32API.CloseHandle(hEvtWait);
}
// Centralize the window
static public bool SetWindowPosAndSize(IntPtr hWnd, out bool bNeedHScroll, out bool bNeedVScroll)
{
bNeedHScroll = false;
bNeedVScroll = false;
if (hWnd == IntPtr.Zero)
{
return(false);
}
// Get window resolution
int nResolutionX = IMCWin32API.GetSystemMetrics(IMCWin32API.SM_CXSCREEN);
int nResolutionY = IMCWin32API.GetSystemMetrics(IMCWin32API.SM_CYSCREEN);
// Get window size
int nWndX;
int nWndY;
if (!GetWindowSize(hWnd, out nWndX, out nWndY))
{
return(false);
}
bNeedHScroll = ((nWndX > nResolutionX) ? true : false);
bNeedVScroll = ((nWndY > nResolutionY) ? true : false);
// Get the start position
int nStartX = (bNeedHScroll ? 0 : (nResolutionX - nWndX) >> 1);
int nStartY = (bNeedVScroll ? 0 : (nResolutionY - nWndY) >> 1);
// Set window position
IMCWin32API.SetWindowPos(
hWnd,
IntPtr.Zero,
nStartX,
nStartY,
(bNeedHScroll ? nResolutionX : nWndX),
(bNeedVScroll ? nResolutionY : nWndY),
/*IMCWin32API.SWP_NOSIZE | */ IMCWin32API.SWP_NOZORDER
);
return(true);
}
// Play sound when taking snapshot
static public bool PlayCameraSound()
{
return(IMCWin32API.PlaySound("camera.wav", IntPtr.Zero, IMCWin32API.SND_FILENAME | IMCWin32API.SND_ASYNC));
}
