public static Standard.SafeDC CreateCompatibleDC(Standard.SafeDC hdc)
{
Standard.SafeDC edc = null;
try
{
IntPtr zero = IntPtr.Zero;
if (hdc != null)
{
zero = hdc.handle;
}
edc = NativeMethods.CreateCompatibleDC(zero);
if (edc == null)
{
Standard.HRESULT.ThrowLastError();
}
}
finally
{
if (edc != null)
{
edc._created = true;
}
}
if (edc.IsInvalid)
{
edc.Dispose();
throw new SystemException("Unable to create a device context from the specified device information.");
}
return(edc);
}
public static Standard.SafeDC CreateDC(string deviceName)
{
Standard.SafeDC edc = null;
try
{
edc = NativeMethods.CreateDC(deviceName, null, IntPtr.Zero, IntPtr.Zero);
}
finally
{
if (edc != null)
{
edc._created = true;
}
}
if (edc.IsInvalid)
{
edc.Dispose();
throw new SystemException("Unable to create a device context from the specified device information.");
}
return(edc);
}
