Exemplos de GetSafeHdc em C++ (Cpp)

Exemplo n.º 1

Arquivo: memdc.cpp Projeto: tianyx/TxUIProject

CMemDC::~CMemDC()
{
	if (!GetSafeHdc())
	{
		return;
	}
	if(m_pOldBitmap)
	{
		SelectObject(m_pOldBitmap);
		m_pOldBitmap = NULL;
	}
	m_bitmap.DeleteObject();
	DeleteDC();
}

Exemplo n.º 2

Arquivo: BitmapDC.cpp Projeto: hgl888/nashtest

BOOL CBitmapDC::CreateBitmapDC(int W, int H)
{  
   CWindowDC dc(NULL);	
   CDC *pDC = &dc;
   if( GetSafeHdc()==NULL )
 	  CreateCompatibleDC( pDC );
   else
	  SelectObject( m_pOldBmp );
   if( m_bitmap.GetSafeHandle()!= NULL )
	   m_bitmap.DeleteObject();
   if( !m_bitmap . CreateCompatibleBitmap( pDC, W, H ) )
	   return FALSE;
   m_pOldBmp = SelectObject( &m_bitmap );   
   return TRUE;
}

Exemplo n.º 3

Arquivo: uImageDC.cpp Projeto: Ikari2015/Live2D

void CUImageDC::Create(int nWidth, int nHeight)
{
	BITMAPINFOHEADER	bih;
	memset(&bih, 0, sizeof(BITMAPINFOHEADER));
	bih.biSize		=	sizeof(BITMAPINFOHEADER);
	bih.biWidth		=	((((int)nWidth * 8) + 31) & ~31) >> 3;
	bih.biHeight	=	nHeight;
	bih.biPlanes	=	1;
	bih.biBitCount	=	32;
	bih.biCompression	=	BI_RGB;
	m_hBmp	=	NULL;
	m_hDC	=	CreateCompatibleDC(NULL);
	m_hBmp	= ::CreateDIBSection(
		GetSafeHdc(), (BITMAPINFO*)&bih,
		DIB_RGB_COLORS, (void**)(&m_pBits), NULL, 0);
	SelectObject(m_hDC, m_hBmp);
}

Exemplo n.º 4

void CBitmapDC::Create(int nWidth, int nHeight)
{
	if (nWidth <= 0 || nHeight<= 0)
		return;

	if (nWidth != m_DcSize.cx || nHeight != m_DcSize.cy)
	{
		Delete();
		
		m_DcSize.cx = nWidth;
		m_DcSize.cy = nHeight;

		BITMAPINFOHEADER bih;
		memset(&bih, 0, sizeof(BITMAPINFOHEADER));
		bih.biSize = sizeof(BITMAPINFOHEADER);
		bih.biHeight = nHeight;
		bih.biWidth = nWidth;
		//bih.biWidth = ((((int)nWidth * 8) + 31) & ~31) >> 3;
		bih.biPlanes = 1;
		bih.biBitCount = 32;
		bih.biCompression = BI_RGB;

		m_hDC = CreateCompatibleDC(NULL);
		if (m_hDC != NULL)
		{
			m_hBmp	= ::CreateDIBSection(GetSafeHdc(), (BITMAPINFO*)&bih,
				DIB_RGB_COLORS, (void**)(&m_pBits), NULL, 0);

			if (m_hBmp != NULL && m_pBits != NULL)
				SelectObject(m_hDC, m_hBmp);
			else
				Delete();
		}
		else
		{
			Delete();
		}
	}
	else
	{
		if (m_pBits != NULL)
			memset(m_pBits, 0, m_DcSize.cx * m_DcSize.cy * 4);
	}
}

Exemplo n.º 5

Arquivo: BufferedDC.cpp Projeto: caidongyun/libs

void CBufferedDC::DestroyObjects()
{
	if( m_nRestorePoint )
	{
		RestoreDC( m_nRestorePoint );
		m_nRestorePoint = 0;
	}

    // Delete if already created
    if( m_bmpBuffer.GetSafeHandle())
    {
        m_bmpBuffer.DeleteObject();
    }//End if

    // Delete DC if already created
    if( GetSafeHdc())
    {
        DeleteDC();
    }// End if

}// End DestroyObjects