unsafe void InitPixelFormat(IntPtr hdc)
{
// pfd Tells Windows How We Want Things To Be
var pfd = new PixelformatDescriptor
{
nSize = (ushort)Marshal.SizeOf <PixelformatDescriptor> (), // size of this pfd
nVersion = 1, // version number
dwFlags = PFD_FLAGS.DRAW_TO_WINDOW | PFD_FLAGS.SUPPORT_OPENGL | PFD_FLAGS.DOUBLEBUFFER, // support window, OpenGL, double buffered
iPixelType = PFD_PIXEL_TYPE.RGBA, // RGBA type
cColorBits = 24, // 24-bit color depth
cRedBits = 0,
cRedShift = 0,
cGreenBits = 0,
cGreenShift = 0,
cBlueBits = 0,
cBlueShift = 0, // color bits ignored
cAlphaBits = 0, // no alpha buffer
cAlphaShift = 0, // shift bit ignored
cAccumBits = 0, // no accumulation buffer
cAccumRedBits = 0,
cAccumGreenBits = 0,
cAccumBlueBits = 0,
cAccumAlphaBits = 0, // accum bits ignored
cDepthBits = 32, // 16-bit z-buffer
cStencilBits = 0, // no stencil buffer
cAuxBuffers = 0, // no auxiliary buffer
iLayerType = PFD_LAYER_TYPES.MAIN_PLANE, // main layer
bReserved = 0, // reserved
dwLayerMask = 0,
dwVisibleMask = 0,
dwDamageMask = 0 // layer masks ignored
};
int iPixelFormat = wgl.ChoosePixelFormat(hdc, (IntPtr)(&pfd));
// get the device context's best, available pixel format match
if (iPixelFormat == 0)
{
//MessageBox::Show ( "ChoosePixelFormat Failed" );
return;
}
if (wgl.SetPixelFormat(hdc, iPixelFormat, (IntPtr)(&pfd)) == false)
{
//MessageBox::Show ( "SetPixelFormat Failed" );
return;
}
renderContext = wgl.CreateContext(hdc);
if (renderContext == IntPtr.Zero)
{
//MessageBox::Show ( "wglCreateContext Failed" );
return;
}
if ((wgl.MakeCurrent(hdc, renderContext)) == false)
{
//MessageBox::Show ( "wglMakeCurrent Failed" );
return;
}
}
/// <summary>
/// Set the pixel format on Windows platform.
/// </summary>
private void SetPixelFormatWgl()
{
WindowsDeviceContext winDeviceContext = (WindowsDeviceContext)_DeviceContext;
// Define most compatible pixel format
Wgl.PIXELFORMATDESCRIPTOR pfd = new Wgl.PIXELFORMATDESCRIPTOR(24);
int pFormat;
// Find pixel format match
pFormat = Wgl.ChoosePixelFormat(winDeviceContext.DeviceContext, ref pfd);
// Get exact description of the pixel format
Wgl.DescribePixelFormat(winDeviceContext.DeviceContext, pFormat, (uint)pfd.nSize, ref pfd);
// Set pixel format before creating OpenGL context
Wgl.SetPixelFormat(winDeviceContext.DeviceContext, pFormat, ref pfd);
}
