Disable Window Resizing Win32

how do I disable resizing by dragging the edge of windows?

Here is my window creation code

bool CreateGLWindow(char* title, int width, int height)
{
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)0;            // Set Left Value To 0
WindowRect.right=(long)width;       // Set Right Value To Requested Width
WindowRect.top=(long)0;             // Set Top Value To 0
WindowRect.bottom=(long)height;     // Set Bottom Value To Requested Height

hInstance           = GetModuleHandle(NULL);                // Grab An Instance For Our Window
wc.style            = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;   // Redraw On Size, And Own DC For Window.
wc.lpfnWndProc      = (WNDPROC) WndProc;                    // WndProc Handles Messages
wc.cbClsExtra       = 0;                                    // No Extra Window Data
wc.cbWndExtra       = 0;                                    // No Extra Window Data
wc.hInstance        = hInstance;                            // Set The Instance
wc.hIcon            = LoadIcon(NULL, IDI_WINLOGO);          // Load The Default Icon
wc.hCursor          = LoadCursor(NULL, IDC_ARROW);          // Load The Arrow Pointer
wc.hbrBackground    = NULL;                                 // No Background Required For GL
wc.lpszMenuName     = NULL;                                 // We Don't Want A Menu
wc.lpszClassName    = "OpenGL";                             // Set The Class Name

if (!RegisterClass(&wc))                                    // Attempt To Register The Window Class
{
    MessageBox(NULL,"Failed To Register The Window Class.","ERROR",MB_OK|MB_ICONEXCLAMATION);
    return false;