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| BOOL CreateGLWindow(HWND hwnd,char* title,int x, int y, int width, int height, int bits, bool fullscreenflag,WNDPROC proc)
{
GLuint PixelFormat; // Holds The Results After Searching For A Match
WNDCLASS wc; // Windows Class Structure
DWORD dwExStyle; // Window Extended Style
DWORD dwStyle; // Window Style
RECT WindowRect; // Grabs Rectangle Upper Left / Lower Right Values
WindowRect.left=(long)x; // Set Left Value To 0
WindowRect.right=(long)width; // Set Right Value To Requested Width
WindowRect.top=(long)y; // Set Top Value To 0
WindowRect.bottom=(long)height; // Set Bottom Value To Requested Height
fullscreen=fullscreenflag; // Set The Global Fullscreen Flag
hInstance2 = GetModuleHandle(NULL); // Grab An Instance For Our Window
dwExStyle= WS_EX_CLIENTEDGE; // Window Extended Style
dwStyle=WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | ES_NUMBER | ES_LEFT; // Windows Style
//AdjustWindowRectEx(&WindowRect, dwStyle, FALSE, dwExStyle); // Adjust Window To True Requested Size
// Create The Window
if (!(hWnd[num_child]=CreateWindowEx( dwExStyle, // Extended Style For The Window
"OpenGL", // Class Name
title, // Window Title
dwStyle, // Required Window Style
WindowRect.left, WindowRect.top, // Window Position
WindowRect.right, // Calculate Window Width
WindowRect.bottom, // Calculate Window Height
hwnd, // No Parent Window
NULL, // No Menu
hInstance2, // Instance
NULL))) // Dont Pass Anything To WM_CREATE
{
KillGLWindow(num_child-1); // Reset The Display
MessageBox(NULL,"Window Creation Error.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
static PIXELFORMATDESCRIPTOR pfd= // pfd Tells Windows How We Want Things To Be
{
sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor
1, // Version Number
PFD_DRAW_TO_WINDOW | // Format Must Support Window
PFD_SUPPORT_OPENGL | // Format Must Support OpenGL
PFD_DOUBLEBUFFER, // Must Support Double Buffering
PFD_TYPE_RGBA, // Request An RGBA Format
16, // Select Our Color Depth
0, 0, 0, 0, 0, 0, // Color Bits Ignored
0, // No Alpha Buffer
0, // Shift Bit Ignored
0, // No Accumulation Buffer
0, 0, 0, 0, // Accumulation Bits Ignored
32, // 32Bit Z-Buffer (Depth Buffer)
0, // No Stencil Buffer
0, // No Auxiliary Buffer
0, // Main Drawing Layer
0, // Reserved
0, 0, 0 // Layer Masks Ignored
};
if (!(hDC[num_child]=GetDC(hWnd[num_child]))) // Did We Get A Device Context?
{
KillGLWindow(num_child-1); // Reset The Display
MessageBox(NULL,"Can't Create A GL Device Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
if (!(PixelFormat=ChoosePixelFormat(hDC[num_child],&pfd))) // Did Windows Find A Matching Pixel Format?
{
KillGLWindow(num_child-1); // Reset The Display
MessageBox(NULL,"Can't Find A Suitable PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
if(!SetPixelFormat(hDC[num_child],PixelFormat,&pfd)) // Are We Able To Set The Pixel Format?
{
KillGLWindow(num_child-1); // Reset The Display
MessageBox(NULL,"Can't Set The PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
if (!(hRC[num_child]=wglCreateContext(hDC[num_child]))) // Are We Able To Get A Rendering Context?
{
KillGLWindow(num_child-1); // Reset The Display
MessageBox(NULL,"Can't Create A GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
if(!wglMakeCurrent(hDC[num_child],hRC[num_child])) // Try To Activate The Rendering Context
{
KillGLWindow(num_child-1); // Reset The Display
MessageBox(NULL,"Can't Activate The GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
ShowWindow(hWnd[num_child],SW_SHOW); // Show The Window
SetForegroundWindow(hWnd[num_child]); // Slightly Higher Priority
SetFocus(hWnd[num_child]); // Sets Keyboard Focus To The Window
ReSizeGLScene(width, height); // Set Up Our Perspective GL Screen
num_child++;
return TRUE;
} |
